{"body":"\n\n

\n\n\n\n\n\nKlapka | COVNA\n<meta content='\"klapka,' pokud chcete zn cenu klapky kontaktujte n name='\"description\"'>\n<meta content='\"klapkov\u00fd' ventil name='\"keywords\"'>\n<meta property='\"og:url\"' content='\"https:\/\/www.covna-china.com\/dlp\/butterfly-valve.html\"'>\n<meta property='\"og:type\"' content='\"Organization\"'>\n<meta property='\"og:title\"' content='\"Klapka' covna>\n<meta property='\"og:description\"' content='\"klapka,' pokud chcete zn cenu klapky kontaktujte n>\n<meta property='\"og:image\"' content='\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/ec218f17-84e7-4f39-8e15-af99d2d73ae9.png?t=1666644800&x-oss-process=image\/resize,w_500,h_500\/format,webp\"'>\n<link rel='\"preload\"' as='\"image\"' href="%5C%22https:%5C/%5C/seo-console-assets.goalsites.com%5C/uploads%5C/covna-china_com%5C/ec218f17-84e7-4f39-8e15-af99d2d73ae9.png?t=1666644800&x-oss-process=image%5C/resize,w_500,h_500%5C/format,webp%5C%22">\n<link rel='\"shortcut' icon href="%5C%22https:%5C/%5C/seo-console-assets.goalsites.com%5C/uploads%5C/covna-china_com%5C/28281afb-cdb2-48b8-986b-53cc3d9f6301.png?t=1666644800&x-oss-process=image%5C/resize,w_32,h_32%5C/format,webp%5C%22">\n<link rel='\"preload\"' href="%5C%22https:%5C/%5C/fonts.googleapis.com%5C/css2?family=Open+Sans:ital,wght@0,300;0,400;0,600;0,700;0,800;1,300;1,400;1,600;1,700;1,800&display=swap%5C%22" as='\"font\"' crossorigin>\n<link rel='\"stylesheet\"' href="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/tiny-slider%5C/2.9.3%5C/tiny-slider.css%5C%22">\n<style>\n :root {\n --primary: #0e97ff\n }\n\n body {\n margin: 0 !important\n }\n\n [digood-page-content] {\n height: 100vh;\n width: 100%;\n overflow-y: auto\n }\n\n [digood-page-content] *,\n [digood-page-content] ::after,\n [digood-page-content] ::before {\n box-sizing: border-box\n }\n\n [digood-page-content] section {\n display: block\n }\n\n [digood-page-content] [tabindex=\"-1\"]:focus:not(:focus-visible) {\n outline: 0 !important\n }\n\n [digood-page-content] h1,\n [digood-page-content] h2,\n [digood-page-content] h4,\n [digood-page-content] h5 {\n margin-top: 0;\n margin-bottom: .5rem\n }\n\n [digood-page-content] p {\n margin-top: 0;\n margin-bottom: 1rem;\n color: #555556;\n font-size: 16px;\n line-height: 1.6\n }\n\n [digood-page-content] a {\n color: inherit;\n text-decoration: none;\n background-color: transparent\n }\n\n [digood-page-content] a:hover {\n text-decoration: unset\n }\n\n [digood-page-content] img {\n vertical-align: middle;\n border-style: none\n }\n\n [digood-page-content] svg {\n overflow: hidden;\n vertical-align: middle\n }\n\n [digood-page-content] button {\n border-radius: 0\n }\n\n [digood-page-content] button:focus:not(:focus-visible) {\n outline: 0\n }\n\n [digood-page-content] button,\n [digood-page-content] input,\n [digood-page-content] textarea {\n margin: 0;\n font-family: inherit;\n font-size: inherit;\n line-height: inherit\n }\n\n [digood-page-content] button,\n [digood-page-content] input {\n overflow: visible\n }\n\n [digood-page-content] button {\n text-transform: none\n }\n\n [digood-page-content] [type=button],\n [digood-page-content] [type=submit],\n [digood-page-content] button {\n -webkit-appearance: button\n }\n\n [digood-page-content] [type=button]::-moz-focus-inner,\n [digood-page-content] [type=submit]::-moz-focus-inner,\n [digood-page-content] button::-moz-focus-inner {\n padding: 0;\n border-style: none\n }\n\n [digood-page-content] textarea {\n overflow: auto;\n resize: vertical\n }\n\n [digood-page-content] h1,\n [digood-page-content] h2,\n [digood-page-content] h4,\n [digood-page-content] h5 {\n margin-bottom: .5rem;\n font-weight: 500;\n line-height: 1.2\n }\n\n [digood-page-content] h1 {\n font-size: 2.5rem\n }\n\n [digood-page-content] h2 {\n font-size: 2rem\n }\n\n [digood-page-content] h4 {\n font-size: 1.5rem\n }\n\n [digood-page-content] h5 {\n font-size: 1.25rem\n }\n\n [digood-page-content] .text-center {\n text-align: center\n }\n\n [digood-page-content] ._img-fluid_1k55i_123 {\n width: 100%;\n max-width: 100%;\n height: auto\n }\n\n [digood-page-content] ._container_1k55i_128 {\n width: 100%;\n padding-right: 15px;\n padding-left: 15px;\n margin-right: auto;\n margin-left: auto\n }\n\n @media (min-width:576px) {\n [digood-page-content] ._container_1k55i_128 {\n max-width: 540px\n }\n }\n\n @media (min-width:768px) {\n [digood-page-content] ._container_1k55i_128 {\n max-width: 720px\n }\n }\n\n @media (min-width:992px) {\n [digood-page-content] ._container_1k55i_128 {\n max-width: 960px\n }\n }\n\n @media (min-width:1200px) {\n [digood-page-content] ._container_1k55i_128 {\n max-width: 1140px\n }\n }\n\n [digood-page-content] ._row_1k55i_160 {\n display: -ms-flexbox;\n display: flex;\n -ms-flex-wrap: wrap;\n flex-wrap: wrap;\n margin-right: -15px;\n margin-left: -15px\n }\n\n [digood-page-content] ._col-6_1k55i_167,\n [digood-page-content] ._col-lg-5_1k55i_174,\n [digood-page-content] ._col-lg-7_1k55i_175,\n [digood-page-content] ._col-md-3_1k55i_169,\n [digood-page-content] ._col-md-4_1k55i_170,\n [digood-page-content] ._col-md-5_1k55i_171,\n [digood-page-content] ._col-md-6_1k55i_172,\n [digood-page-content] ._col-md-7_1k55i_173,\n [digood-page-content] ._col-sm-4_1k55i_168 {\n position: relative;\n width: 100%;\n padding-right: 15px;\n padding-left: 15px\n }\n\n [digood-page-content] ._col-6_1k55i_167 {\n -ms-flex: 0 0 50%;\n flex: 0 0 50%;\n max-width: 50%\n }\n\n @media (min-width:576px) {\n [digood-page-content] ._col-sm-4_1k55i_168 {\n -ms-flex: 0 0 33.333333%;\n flex: 0 0 33.333333%;\n max-width: 33.333333%\n }\n }\n\n @media (min-width:768px) {\n [digood-page-content] ._col-md-3_1k55i_169 {\n -ms-flex: 0 0 25%;\n flex: 0 0 25%;\n max-width: 25%\n }\n\n [digood-page-content] ._col-md-4_1k55i_170 {\n -ms-flex: 0 0 33.333333%;\n flex: 0 0 33.333333%;\n max-width: 33.333333%\n }\n\n [digood-page-content] ._col-md-5_1k55i_171 {\n -ms-flex: 0 0 41.666667%;\n flex: 0 0 41.666667%;\n max-width: 41.666667%\n }\n\n [digood-page-content] ._col-md-6_1k55i_172 {\n -ms-flex: 0 0 50%;\n flex: 0 0 50%;\n max-width: 50%\n }\n\n [digood-page-content] ._col-md-7_1k55i_173 {\n -ms-flex: 0 0 58.333333%;\n flex: 0 0 58.333333%;\n max-width: 58.333333%\n }\n }\n\n @media (min-width:992px) {\n [digood-page-content] ._col-lg-5_1k55i_174 {\n -ms-flex: 0 0 41.666667%;\n flex: 0 0 41.666667%;\n max-width: 41.666667%\n }\n\n [digood-page-content] ._col-lg-7_1k55i_175 {\n -ms-flex: 0 0 58.333333%;\n flex: 0 0 58.333333%;\n max-width: 58.333333%\n }\n }\n\n [digood-page-content] ._card_1k55i_233 {\n position: relative;\n display: -ms-flexbox;\n display: flex;\n -ms-flex-direction: column;\n flex-direction: column;\n min-width: 0;\n word-wrap: break-word;\n background-color: #fff;\n background-clip: border-box;\n border: 1px solid rgba(0, 0, 0, .125);\n border-radius: .25rem\n }\n\n [digood-page-content] ._card-body_1k55i_245 {\n -ms-flex: 1 1 auto;\n flex: 1 1 auto;\n min-height: 1px;\n padding: 1.25rem\n }\n\n [digood-page-content] ._embed-responsive_1k55i_251 {\n position: relative;\n display: block;\n width: 100%;\n padding: 0;\n overflow: hidden\n }\n\n [digood-page-content] ._embed-responsive_1k55i_251::before {\n display: block;\n content: \"\"\n }\n\n [digood-page-content] ._embed-responsive_1k55i_251 iframe {\n position: absolute;\n top: 0;\n bottom: 0;\n left: 0;\n width: 100%;\n height: 100%;\n border: 0\n }\n\n [digood-page-content] ._embed-responsive-16by9_1k55i_274::before {\n padding-top: 56.25%\n }\n\n [digood-page-content] ._icon-spin_1k55i_777 {\n -webkit-animation: fa-spin 2s infinite linear;\n animation: fa-spin 2s infinite linear\n }\n\n [digood-page-content] ._msg_1k55i_777 {\n display: none\n }\n\n [digood-page-content] ._alert_1k55i_251 {\n position: relative;\n padding: 12px 20px;\n margin: 16px 0;\n border: 1px solid transparent\n }\n\n [digood-page-content] ._alert_1k55i_251 ._icon_1k55i_658 {\n margin: 0 10px\n }\n\n [digood-page-content] ._alert-info_1k55i_251 {\n color: #0c5460;\n background-color: #d1ecf1;\n border-color: #bee5eb\n }\n\n [digood-page-content] ._alert-success_1k55i_251 {\n color: #155724;\n background-color: #d4edda;\n border-color: #c3e6cb\n }\n\n [digood-page-content] ._alert-danger_1k55i_251 {\n color: #721c24;\n background-color: #f8d7da;\n border-color: #f5c6cb\n }\n\n [digood-page-content] ._tns-outer_1k55i_278 {\n padding: 0 !important\n }\n\n [digood-page-content] ._tns-outer_1k55i_278 [hidden] {\n display: none !important\n }\n\n [digood-page-content] ._tns-outer_1k55i_278 [aria-controls],\n [digood-page-content] ._tns-outer_1k55i_278 [data-action] {\n cursor: pointer\n }\n\n [digood-page-content] ._tns-slider_1k55i_291 {\n transition: all 0s\n }\n\n [digood-page-content] ._tns-slider_1k55i_291>._tns-item_1k55i_295 {\n box-sizing: border-box\n }\n\n [digood-page-content] ._tns-horizontal_1k55i_299._tns-subpixel_1k55i_299 {\n white-space: nowrap\n }\n\n [digood-page-content] ._tns-horizontal_1k55i_299._tns-subpixel_1k55i_299>._tns-item_1k55i_295 {\n display: inline-block;\n vertical-align: top;\n white-space: normal\n }\n\n [digood-page-content] ._tns-horizontal_1k55i_299._tns-no-subpixel_1k55i_309:after {\n content: \"\";\n display: table;\n clear: both\n }\n\n [digood-page-content] ._tns-horizontal_1k55i_299._tns-no-subpixel_1k55i_309>._tns-item_1k55i_295 {\n float: left\n }\n\n [digood-page-content] ._tns-horizontal_1k55i_299._tns-carousel_1k55i_319._tns-no-subpixel_1k55i_309>._tns-item_1k55i_295 {\n margin-right: -100%\n }\n\n [digood-page-content] ._tns-no-calc_1k55i_323 {\n position: relative;\n left: 0\n }\n\n [digood-page-content] ._tns-gallery_1k55i_328 {\n position: relative;\n left: 0;\n min-height: 1px\n }\n\n [digood-page-content] ._tns-gallery_1k55i_328>._tns-item_1k55i_295 {\n position: absolute;\n left: -100%;\n transition: transform 0s, opacity 0s\n }\n\n [digood-page-content] ._tns-gallery_1k55i_328>._tns-slide-active_1k55i_340 {\n position: relative;\n left: auto !important\n }\n\n [digood-page-content] ._tns-gallery_1k55i_328>._tns-moving_1k55i_345 {\n transition: all .25s\n }\n\n [digood-page-content] ._tns-autowidth_1k55i_349 {\n display: inline-block\n }\n\n [digood-page-content] ._tns-lazy-img_1k55i_353 {\n transition: opacity .6s;\n opacity: .6\n }\n\n [digood-page-content] ._tns-lazy-img_1k55i_353._tns-complete_1k55i_358 {\n opacity: 1\n }\n\n [digood-page-content] ._tns-ah_1k55i_362 {\n transition: height 0s\n }\n\n [digood-page-content] ._tns-ovh_1k55i_366 {\n overflow: hidden\n }\n\n [digood-page-content] ._tns-visually-hidden_1k55i_370 {\n position: absolute;\n left: -10000em\n }\n\n [digood-page-content] ._tns-transparent_1k55i_375 {\n opacity: 0;\n visibility: hidden\n }\n\n [digood-page-content] ._tns-fadeIn_1k55i_380 {\n opacity: 1;\n z-index: 0\n }\n\n [digood-page-content] ._tns-fadeOut_1k55i_387,\n [digood-page-content] ._tns-normal_1k55i_386 {\n opacity: 0;\n z-index: -1\n }\n\n [digood-page-content] ._tns-vpfix_1k55i_393 {\n white-space: nowrap\n }\n\n [digood-page-content] ._tns-vpfix_1k55i_393>div,\n [digood-page-content] ._tns-vpfix_1k55i_393>li {\n display: inline-block\n }\n\n [digood-page-content] ._tns-t-subp2_1k55i_402 {\n margin: 0 auto;\n width: 310px;\n position: relative;\n height: 10px;\n overflow: hidden\n }\n\n [digood-page-content] ._tns-t-ct_1k55i_410 {\n width: 2333.3333333%;\n width: calc(100% * 70 \/ 3);\n position: absolute;\n right: 0\n }\n\n [digood-page-content] ._tns-t-ct_1k55i_410:after {\n content: \"\";\n display: table;\n clear: both\n }\n\n [digood-page-content] ._tns-t-ct_1k55i_410>div {\n width: 1.4285714%;\n width: calc(100% \/ 70);\n height: 10px;\n float: left\n }\n\n [digood-page-content] li {\n list-style: none\n }\n\n [digood-page-content] li,\n [digood-page-content] ul {\n margin: 0;\n padding: 0\n }\n\n [digood-page-content] a {\n color: inherit;\n text-decoration: none;\n background-color: transparent\n }\n\n [digood-page-content] icon,\n [digood-page-content] svg {\n fill: currentColor;\n height: 1em;\n width: 1em;\n vertical-align: middle\n }\n\n [digood-page-content] ._slider-wrap_1k55i_471 {\n direction: ltr\n }\n\n [digood-page-content] ._slider-wrap_1k55i_471 .tns-nav {\n text-align: center;\n margin: 30px 0 0\n }\n\n [digood-page-content] ._slider-wrap_1k55i_471 .tns-nav>[aria-controls] {\n width: 10px;\n height: 10px;\n padding: 0;\n margin: 0 5px;\n border-radius: 50%;\n background: #ddd;\n border: 0\n }\n\n [digood-page-content] ._slider-wrap_1k55i_471 .tns-nav>.tns-nav-active {\n background: var(--primary)\n }\n\n [digood-page-content] ._section-header_1k55i_494 {\n margin-bottom: 30px\n }\n\n [digood-page-content] ._text_1k55i_509 ul {\n padding: 0;\n margin: 0;\n list-style: none\n }\n\n [digood-page-content] ._text_1k55i_509 ul li {\n list-style: none;\n padding-left: 36px;\n background-image: url(https:\/\/www.covna-china.com\/data:image\/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyMiIgaGVpZ2h0PSIyMiIgdmlld0JveD0iMCAwIDI0IDI0Ij48cGF0aCBmaWxsPSIjNjY2IiBkPSJNMTIgMkM2LjUgMiAyIDYuNSAyIDEyUzYuNSAyMiAxMiAyMiAyMiAxNy41IDIyIDEyIDE3LjUgMiAxMiAyTTEyIDIwQzcuNTkgMjAgNCAxNi40MSA0IDEyUzcuNTkgNCAxMiA0IDIwIDcuNTkgMjAgMTIgMTYuNDEgMjAgMTIgMjBNMTYuNTkgNy41OEwxMCAxNC4xN0w3LjQxIDExLjU5TDYgMTNMMTAgMTdMMTggOUwxNi41OSA3LjU4WiIgLz48L3N2Zz4=);\n background-position: left center;\n background-repeat: no-repeat;\n margin-bottom: .5rem\n }\n\n [digood-page-content] ._text_1k55i_498 ul {\n list-style: none;\n padding: 0\n }\n\n [digood-page-content] ._text_1k55i_498 ul li {\n padding-left: 50px;\n position: relative;\n font-size: 16px;\n font-weight: 400;\n line-height: 24px;\n color: #565656;\n margin-bottom: 15px\n }\n\n [digood-page-content] ._text_1k55i_498 ul li:before {\n content: '\u2713';\n display: block;\n width: 30px;\n height: 30px;\n line-height: 30px;\n text-align: center;\n background-color: var(--primary);\n color: #fff;\n position: absolute;\n left: 0;\n top: 50%;\n transform: translateY(-50%);\n border-radius: 50%\n }\n\n [digood-page-content] ._section-header_1k55i_494 ._section-subtitle_1k55i_498 {\n color: var(--primary);\n font-size: 14px;\n text-transform: uppercase;\n letter-spacing: .1em;\n font-weight: 700;\n line-height: 1em\n }\n\n [digood-page-content] ._section-header_1k55i_494 ._section-title_1k55i_498 {\n position: relative;\n font-size: 32px;\n padding-left: 15px;\n border-left: 3px solid var(--primary);\n text-transform: capitalize\n }\n\n [digood-page-content] ._section-header_1k55i_494._center_1k55i_505 {\n text-align: center\n }\n\n [digood-page-content] ._section-header_1k55i_494._center_1k55i_505 ._section-title_1k55i_498 {\n padding: 0 0 15px 0;\n border: none\n }\n\n [digood-page-content] ._section-padding_1k55i_514 {\n padding: 90px 0\n }\n\n [digood-page-content] ._section-banner_1k55i_518 {\n padding: 60px 0\n }\n\n [digood-page-content] ._section-banner_1k55i_518 ._col-md-6_1k55i_172 {\n display: -ms-flexbox;\n display: flex;\n -ms-flex-direction: column;\n flex-direction: column;\n -ms-flex-pack: center;\n justify-content: center\n }\n\n [digood-page-content] ._section-banner_1k55i_518 ._banner-content_1k55i_529 {\n padding: 30px 0\n }\n\n [digood-page-content] ._section-banner_1k55i_518 ._banner-content_1k55i_529 h1 {\n margin: 0;\n color: #343434;\n font-size: 24px;\n line-height: 30px;\n font-weight: 600;\n margin-bottom: 30px;\n text-transform: capitalize\n }\n\n [digood-page-content] ._section-banner_1k55i_518 ._banner-content_1k55i_529 p {\n font-size: 16px;\n line-height: 1.6;\n color: #555556\n }\n\n [digood-page-content] ._section-banner_1k55i_518 ._banner-content_1k55i_529 ._btn-action_1k55i_545 {\n width: 183px;\n height: 55px;\n border: 2px solid var(--primary);\n line-height: 51px;\n display: inline-block;\n vertical-align: middle;\n background: var(--primary);\n text-align: center;\n font-size: 12px;\n text-transform: uppercase;\n letter-spacing: .1em;\n color: #fff;\n border-radius: 27.5px;\n font-weight: 700;\n transition: all .4s ease;\n margin-top: 30px\n }\n\n [digood-page-content] ._section-banner_1k55i_518 ._banner-content_1k55i_529 ._btn-action_1k55i_545:hover {\n color: var(--primary);\n background-color: transparent\n }\n\n [digood-page-content] ._section-features_1k55i_648 {\n background-color: #ededed\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item {\n position: relative;\n vertical-align: middle;\n -webkit-transform: perspective(1px) translateZ(0);\n transform: perspective(1px) translateZ(0);\n box-shadow: 0 0 1px transparent;\n position: relative;\n -webkit-transition-property: color;\n transition-property: color;\n -webkit-transition-duration: .5s;\n transition-duration: .5s;\n -webkit-box-shadow: 0 10px 25px rgb(0 0 0 \/ 5%);\n box-shadow: 0 10px 25px rgb(0 0 0 \/ 5%);\n background: #fff;\n display: block;\n text-align: center;\n padding: 60px 30px;\n height: 100%;\n cursor: pointer\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item:before {\n content: \"\";\n position: absolute;\n z-index: -1;\n top: 0;\n left: 0;\n right: 0;\n bottom: 0;\n background: var(--primary);\n -webkit-transform: scaleY(0);\n transform: scaleY(0);\n -webkit-transform-origin: 50% 0;\n transform-origin: 50% 0;\n -webkit-transition-property: transform;\n transition-property: transform;\n -webkit-transition-duration: .5s;\n transition-duration: .5s;\n -webkit-transition-timing-function: ease-out;\n transition-timing-function: ease-out\n }\n\n [digood-page-content] ._section-features_1k55i_648 .slider-features {\n display: flex\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item:hover:before {\n -webkit-transform: scaleY(1);\n transform: scaleY(1);\n -webkit-transition-timing-function: cubic-bezier(.52, 1.64, .37, .66);\n transition-timing-function: cubic-bezier(.52, 1.64, .37, .66)\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item .feature-info._center_1k55i_505 {\n text-align: center\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item .icon-box {\n display: inline-block;\n vertical-align: middle;\n position: relative;\n width: 60px\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item .icon-box:before {\n content: '';\n width: 55px;\n height: 55px;\n background: var(--primary);\n position: absolute;\n top: -15px;\n left: -15px;\n border-radius: 50%;\n opacity: .1;\n -webkit-transition: all .4s ease;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item:hover .icon-box:before {\n opacity: 1;\n background: rgba(255, 255, 255, .1)\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item .feature-title {\n color: #343434;\n font-size: 20px;\n font-weight: 500;\n margin-top: 35px;\n margin-bottom: 30px;\n text-transform: capitalize\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item:hover .feature-text,\n [digood-page-content] ._section-features_1k55i_648 .feature-item:hover .feature-title {\n color: #fff\n }\n\n [digood-page-content] ._section-features_1k55i_648 .feature-item .feature-text {\n font-size: 16px;\n line-height: 30px;\n color: #555556;\n margin: 0\n }\n\n [digood-page-content] ._section-about_1k55i_568 {\n background-color: #f8f9fa\n }\n\n [digood-page-content] ._section-about_1k55i_568 ._row_1k55i_160 {\n align-items: center\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 {\n border: none;\n margin-bottom: 30px\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577 {\n position: relative;\n overflow: hidden;\n cursor: pointer;\n display: block;\n width: 100%;\n padding: 0\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:before {\n content: ' ';\n display: block;\n padding-top: 100%\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577 a {\n position: absolute;\n top: 0;\n bottom: 0;\n left: 0;\n width: 100%;\n height: 100%;\n border: 0;\n display: block\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577 img {\n width: 100%;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577 h4 {\n font-size: 14px;\n color: #fff;\n text-transform: uppercase;\n letter-spacing: .1em;\n position: absolute;\n font-weight: 700;\n top: 50%;\n left: 50%;\n transform: translate(-50%, -50%);\n z-index: 99;\n opacity: 0;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:after {\n content: \"\";\n position: absolute;\n top: 0;\n left: 0;\n right: 0;\n bottom: 0;\n background: var(--primary);\n opacity: 0;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:hover img {\n transform: scale(1.05)\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:hover h4 {\n opacity: 1\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:hover:after {\n opacity: .9\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-body_1k55i_245 {\n text-align: center\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-body_1k55i_245 a {\n color: #343434;\n font-size: 16px;\n line-height: 1.4;\n max-height: 2.8em;\n overflow: hidden;\n text-overflow: ellipsis\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-body_1k55i_245 p {\n color: #555556;\n font-size: 14px;\n line-height: 1.4;\n max-height: 4.2em;\n overflow: hidden;\n text-overflow: ellipsis\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 {\n background-color: #f8f9fa\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .tns-slider {\n display: flex\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item {\n background: #fff;\n padding: 50px 60px 0;\n height: 100%;\n cursor: pointer;\n position: relative;\n -webkit-transition: all .4s ease;\n transition: all .4s ease;\n -webkit-box-shadow: 0 10px 25px rgb(0 0 0 \/ 5%);\n box-shadow: 0 10px 25px rgb(0 0 0 \/ 5%)\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item>.icon {\n width: 120px;\n height: 120px;\n position: absolute;\n left: -15px;\n top: -30px;\n color: #0e97ff1 f\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item>p {\n font-size: 16px;\n color: #555556;\n line-height: 1.6;\n margin: 0;\n position: relative\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box {\n margin-top: 30px;\n border-top: 1px solid #fcfcfb;\n padding-top: 30px;\n padding-bottom: 60px;\n display: flex;\n align-items: center\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box .name-image {\n width: 40px;\n height: 40px;\n border-radius: 50%;\n overflow: hidden;\n text-align: center\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box .name-text {\n margin: 0 10px\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box .name-title {\n margin: 0;\n font-size: 16px;\n color: var(--primary);\n font-weight: 600\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-info_1k55i_761 h5 {\n color: var(--primary);\n font-size: 14px;\n text-transform: uppercase;\n letter-spacing: .1em;\n font-weight: 700;\n line-height: 1em\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-info_1k55i_761 h2 {\n color: #343434;\n font-size: 32px;\n font-weight: 600;\n margin-top: 5px\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 {\n border: 0;\n border-bottom: 3px solid #f9f7f5\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-header_18vzw_353 {\n margin-bottom: 0;\n padding: 20px 30px;\n border: 0;\n background: 0 0\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-header_18vzw_353 h4 {\n margin-bottom: 0\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-header_18vzw_353 a {\n font-size: 18px;\n font-weight: 600;\n color: #343434;\n position: relative;\n display: block\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-header_18vzw_353 ._icon_1k55i_658 {\n position: absolute;\n right: 0;\n font-size: 24px\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-body_1k55i_245 {\n border: 0;\n padding: 0 30px 20px\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-body_1k55i_245 p {\n font-size: 16px;\n color: #555556\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._collapse_18vzw_331 {\n display: block;\n max-height: 0;\n overflow: hidden;\n transition: max-height .5s cubic-bezier(0, 1, 0, 1);\n transition: max-height .5s cubic-bezier(0, 1, 0, 1)\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._collapse_18vzw_331._open_18vzw_495 {\n max-height: 99em;\n transition: max-height .5s ease-in-out\n }\n\n [digood-page-content] ._section-blog_1k55i_706 {\n background-color: #fafafa\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 {\n margin-bottom: 30px\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 {\n position: relative;\n overflow: hidden;\n cursor: pointer;\n display: block;\n width: 100%;\n padding: 0\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577:before {\n content: ' ';\n display: block;\n padding-top: 66.66%\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 a {\n position: absolute;\n top: 0;\n bottom: 0;\n left: 0;\n width: 100%;\n height: 100%;\n border: 0;\n display: block;\n text-align: center\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 ._date-time_1k55i_714 {\n background: #343434;\n width: 60px;\n height: 60px;\n text-align: center;\n color: #fff;\n font-size: 12px;\n font-weight: 600;\n text-transform: uppercase;\n line-height: 14px;\n border-radius: 50%;\n padding: 15px;\n position: absolute;\n top: 10px;\n left: 10px;\n z-index: 10\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-body_1k55i_245 a {\n display: block;\n font-size: 16px;\n line-height: 1.4;\n max-height: 4.2em;\n height: 4.2em;\n overflow: hidden;\n text-overflow: ellipsis;\n color: #343434;\n font-weight: 600;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-body_1k55i_245 a:hover {\n color: var(--primary)\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-body_1k55i_245 p {\n font-size: 16px;\n color: #555556;\n line-height: 1.6;\n max-height: 4.8em;\n overflow: hidden;\n text-overflow: ellipsis\n }\n\n [digood-page-content] ._btn-more_1k55i_706 {\n display: inline-block;\n text-align: center;\n background-color: var(--primary);\n color: #fff;\n border-radius: 25px;\n padding: 10px 20px;\n margin-top: 30px;\n text-transform: capitalize\n }\n\n [digood-page-content] ._section-contact_1k55i_757 {\n background-color: #fff\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-info_1k55i_761 h5 {\n color: var(--primary);\n font-size: 14px;\n text-transform: uppercase;\n letter-spacing: .1em;\n font-weight: 700;\n line-height: 1em\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-info_1k55i_761 h2 {\n color: #343434;\n font-size: 36px;\n font-weight: 600;\n margin-top: 5px\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 ._form-group_1k55i_777 {\n margin-bottom: 30px\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 input,\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 textarea {\n border: none;\n outline: 0;\n background-color: transparent;\n padding: 0 15px 10px 15px;\n border-bottom: 2px solid #e4e0db;\n font-size: 18px;\n color: #555556;\n display: block;\n width: 100%\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 textarea {\n height: 90px\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 ._btn-action_1k55i_545 {\n border: none;\n outline: 0;\n padding: 0;\n background: var(--primary);\n display: inline-block;\n vertical-align: middle;\n width: 170px;\n height: 55px;\n line-height: 55px;\n text-align: center;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: .1em;\n text-transform: uppercase;\n color: #fff;\n overflow: hidden;\n border: none;\n border-radius: 27.5px;\n transition: all .4s ease;\n cursor: pointer\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 ._btn-action_1k55i_545:hover {\n background-color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 {\n background-color: #ededed\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._section-title_1k55i_500 {\n color: #333\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-tab_13kno_350 .tab-nav .tab-link {\n color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-tab_13kno_350 .tab-nav .tab-item.active .tab-link {\n color: var(--primary)\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-tab_13kno_350 .tab-nav .tab-item.active {\n border-color: var(--primary)\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-box_13kno_350 a {\n color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-box_13kno_350 a:hover {\n color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 p {\n margin-bottom: 0;\n text-align: center\n }\n\n [dir=rtl] [digood-page-content] {\n text-align: right\n }\n\n [dir=rtl] [digood-page-content] ._section-header_1k55i_494 ._section-title_1k55i_498 {\n padding-left: 0;\n padding-right: 15px;\n border-left: none;\n border-right: 3px solid var(--primary);\n text-transform: capitalize\n }\n\n [dir=rtl] [digood-page-content] ._section-header_1k55i_494._center_1k55i_505 ._section-title_1k55i_498 {\n border: none\n }\n\n [dir=rtl] [digood-page-content] ._section-faq_1k55i_648 ._faq-item_1k55i_652 ._icon-box_1k55i_658 {\n right: auto;\n left: 15px\n }\n\n [dir=rtl] [digood-page-content] ._section-faq_1k55i_648 ._faq-item_1k55i_652 ._icon-box_1k55i_658:before {\n left: auto;\n right: -7px\n }\n\n [dir=rtl] [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 ._date-time_1k55i_714 {\n left: auto;\n right: 10px\n }\n <\/style>\n<style>\n body {\n margin: 0;\n font-family: 'Open Sans', sans-serif\n }\n\n a,\n a:hover {\n text-decoration: unset;\n color: inherit\n }\n\n .img-height {\n max-height: 100%;\n width: auto\n }\n\n .icon {\n width: 1em;\n height: 1em;\n fill: currentColor;\n vertical-align: middle\n }\n\n .container {\n width: 100%;\n padding-right: 15px;\n padding-left: 15px;\n margin-right: auto;\n margin-left: auto\n }\n\n .navbar {\n display: flex;\n justify-content: space-between;\n align-items: center\n }\n\n .header {\n background-color: #fff;\n -webkit-box-shadow: 0 0 2px rgb(0 0 0 \/ 15%);\n box-shadow: 0 0 2px rgb(0 0 0 \/ 15%)\n }\n\n .header.fixed {\n position: fixed;\n top: 0;\n right: 0;\n left: 0;\n z-index: 1050;\n -webkit-box-shadow: 0 0 16px rgb(0 0 0 \/ 32%);\n box-shadow: 0 0 16px rgb(0 0 0 \/ 32%)\n }\n\n .header .nav-logo {\n height: 80px;\n max-height: 80px;\n max-width: 300px\n }\n\n .header .nav-logo img {\n height: 100%\n }\n\n .nav-menu {\n display: none;\n align-items: center;\n list-style: none;\n margin: 0;\n padding: 0\n }\n\n .nav-menu>li>a {\n color: #555556;\n font-size: 16px;\n font-weight: 500;\n display: block;\n padding: 0 15px;\n line-height: 90px;\n text-transform: uppercase;\n -webkit-transition: all .4s ease;\n transition: all .4s ease;\n border-bottom: 2px solid transparent\n }\n\n .nav-menu>li>a.active,\n .nav-menu>li>a:hover {\n color: var(--primary);\n border-color: var(--primary)\n }\n\n .nav-menu>li:last-child>a {\n padding-right: 0\n }\n\n .fixed .nav-logo {\n height: 60px\n }\n\n .fixed .nav-menu>li>a {\n line-height: 60px\n }\n\n .footer {\n background-color: #ededed\n }\n\n .footer-bottom {\n border-top: 1px solid rgba(0, 0, 0, .05);\n padding: 30px 0\n }\n\n .footer-bottom p {\n color: #343434;\n margin: 0;\n font-size: 16px\n }\n\n .footer-bottom p a {\n color: var(--primary)\n }\n\n .cd-top {\n display: inline-block;\n height: 40px;\n z-index: 9;\n width: 40px;\n position: fixed;\n bottom: 60px;\n right: 30px;\n color: #fff;\n border-radius: 50%;\n font-size: 26px;\n text-align: center;\n background: #000;\n line-height: 34px;\n border: 2px solid #000;\n box-shadow: 0 0 10px rgb(0 0 0 \/ 5%);\n overflow: hidden;\n white-space: nowrap;\n visibility: hidden;\n opacity: 0;\n -webkit-transition: opacity .3s 0s, visibility 0s .3s;\n -moz-transition: opacity .3s 0s, visibility 0s .3s;\n transition: opacity .3s 0s, visibility 0s .3s;\n -webkit-transition: all .4s ease-in-out;\n -moz-transition: all .4s ease-in-out;\n -o-transition: all .4s ease-in-out;\n -ms-transition: all .4s ease-in-out;\n transition: all .4s ease-in-out\n }\n\n .cd-top .icon {\n width: 36px;\n height: 36px\n }\n\n .cd-top.cd-is-visible {\n visibility: visible;\n opacity: 1\n }\n\n .cd-top.cd-fade-out {\n opacity: .5\n }\n\n .cd-top:hover {\n background-color: #000;\n opacity: 1;\n color: #fff\n }\n\n [dir=rtl] .nav-menu>li:last-child>a {\n padding-left: 0\n }\n\n @media (min-width:576px) {\n .container {\n max-width: 540px\n }\n }\n\n @media (min-width:768px) {\n .container {\n max-width: 720px\n }\n\n .nav-menu {\n display: flex\n }\n }\n\n @media (min-width:992px) {\n .container {\n max-width: 960px\n }\n }\n\n @media (min-width:1200px) {\n .container {\n max-width: 1140px\n }\n }\n <\/style>\n<script type=\"application\/ld+json\">\n {\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Organization\",\n \"url\": \"https:\/\/www.covna-china.com\/dlp\/butterfly-valve.html\",\n \"logo\": \"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/505305f3-ddd0-45d3-9969-d4e2367e5eb9.png?t=1666644800&x-oss-process=imageh_80\/format,webp\"\n }\n <\/script><script type=\"application\/ld+json\">\n {\n 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class=\"nav-logo\"> <a href=\"\/\" title=\"Zp\u011bt na domovskou str\u00e1nku\" target=\"_blank\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/505305f3-ddd0-45d3-9969-d4e2367e5eb9.png?t=1666644800&x-oss-process=imageh_80\/format,webp\" width=\"200\" height=\"80\" alt=\"COVNA\" class=\"img-height\"><\/a> <\/div>\n <ul class=\"nav-menu\" id=\"nav-menu\">\n<li class=\"menu-item\"><a class=\"menu-item-link\" href=\"\/\">Domov<\/a><\/li>\n <li class=\"menu-item\">\n<a class=\"menu-item-link\" href=\"https:\/\/cs.covna-china.com\/page\/about-us.html\">ASI<\/a> <\/li>\n <li class=\"menu-item\">\n<a class=\"menu-item-link\" href=\"https:\/\/cs.covna-china.com\/products\/all.html\">PRODUKTY<\/a> <\/li>\n <li class=\"menu-item\">\n<a class=\"menu-item-link\" href=\"https:\/\/cs.covna-china.com\/articles\/all.html\">\u010cL\u00c1NK\u016e<\/a> <\/li>\n <li class=\"menu-item\">\n<a class=\"menu-item-link\" href=\"https:\/\/cs.covna-china.com\/page\/contact-us.html\">KONTAKT<\/a> <\/li>\n <\/ul>\n<\/div>\n <\/div>\n <\/header><section id=\"section-home\" class=\"_section-banner_1k55i_518\"><div class=\"_container_1k55i_128\">\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-6_1k55i_172 _col-lg-5_1k55i_174\">\n <div class=\"text-center\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/ec218f17-84e7-4f39-8e15-af99d2d73ae9.png?t=1666644800&x-oss-process=image\/resize,w_500,h_500\/format,webp\" width=\"450\" height=\"500\" alt=\"Co Chang klapka\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <\/div>\n <div class=\"_col-md-6_1k55i_172 _col-lg-7_1k55i_175\">\n <div class=\"_banner-content_1k55i_529\">\n <div class=\"_section-header_1k55i_494\">\n <h1 class=\"_section-title_1k55i_498\">Co Chang klapka<\/h1>\n <\/div>\n <div class=\"_text_1k55i_498\">\n <p>Klapkov\u00fd ventil, naz\u00fdvan\u00fd tak\u00e9 klapkov\u00fd ventil, je druh regula\u010dn\u00edho ventilu s jednoduchou strukturou. Klapkov\u00fd ventil, kter\u00fd lze pou\u017e\u00edt pro sp\u00edn\u00e1n\u00ed \u0159\u00edzen\u00ed n\u00edzkotlak\u00e9ho potrubn\u00edho m\u00e9dia, odkazuje na uzav\u00edrac\u00ed \u010d\u00e1st (kotou\u010d nebo klapkovou desku) jako disk, kter\u00fd se ot\u00e1\u010d\u00ed kolem h\u0159\u00eddele ventilu, aby se dos\u00e1hlo otev\u0159en\u00ed a zav\u0159en\u00ed. Druh ventilu.<\/p>\n <\/div> <a href=\"#section-contact\" class=\"_btn-action_1k55i_545 _btn-scroll_1k55i_778\" name=\"btn-section-home\">Z\u00edskat cenovou nab\u00eddku<\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-features\" class=\"_section-padding_1k55i_514 _section-features_1k55i_648\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">Rysy<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Pro\u010d si vybrat COVNA?<\/h2>\n <\/div>\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/3d822ab9-e000-4f57-967a-3b6250509c96.png?t=1666644800&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Vynikaj\u00edc\u00ed \u0159emesln\u00e9 zpracov\u00e1n\u00ed\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Vynikaj\u00edc\u00ed \u0159emesln\u00e9 zpracov\u00e1n\u00ed<\/h3>\n <p class=\"feature-text\">Dr\u017ete se ducha vynal\u00e9zavosti CNC p\u0159esn\u00e9ho obr\u00e1b\u011bn\u00ed 20 let technick\u00e9ho in\u017een\u00fdrsk\u00e9ho veden\u00ed<\/p>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/9034508c-1340-44a6-9dfa-9ffe4770ea61.png?t=1666644800&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Technologick\u00e9 inovace\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Technologick\u00e9 inovace<\/h3>\n <p class=\"feature-text\">High-tech nadace Trvejte na inovac\u00edch a rozvoji Senior technick\u00fd talent t\u00fdm<\/p>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/081974ab-1a15-400b-8134-5c2cf3ece550.png?t=1666644800&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Speci\u00e1ln\u00ed zak\u00e1zka\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Speci\u00e1ln\u00ed zak\u00e1zka<\/h3>\n <p class=\"feature-text\">To\u010div\u00fd moment a\u017e 4678nm V\u00fdb\u011br seniorsk\u00e9ho technick\u00e9ho pr\u016fvodce Speci\u00e1ln\u00ed p\u0159izp\u016fsoben\u00ed podle pot\u0159eb z\u00e1kazn\u00edka<\/p>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/b6edcc07-4ced-4b4f-abad-ef78d2138d9f.png?t=1666644800&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Konzistentn\u00ed kvalita\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Konzistentn\u00ed kvalita<\/h3>\n <p class=\"feature-text\">Mezin\u00e1rodn\u00ed certifikace ISO9001 Dodr\u017eujte standardizovan\u00e9 v\u00fdrobn\u00ed procesy Test trvanlivosti 1 milion cykl\u016f<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-about\" class=\"_section-about_1k55i_568 _section-padding_1k55i_514\"><div class=\"_container_1k55i_128\">\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-6_1k55i_172\">\n <div class> <img class=\"_img-fluid_1k55i_123\" src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/99ac43d0-bdbb-454e-a69b-a19e36009343.png?t=1666644800&x-oss-process=image\/resize,w_600,h_338\/format,webp\" alt=\"o COVNA\" width=\"560\" height=\"315\">\n<\/div>\n <\/div>\n <div class=\"_col-md-6_1k55i_172\">\n <div class>\n <div class=\"_section-header_1k55i_494\">\n <h2 class=\"_section-title_1k55i_498\">M\u00e1me nejlep\u0161\u00ed \u0159e\u0161en\u00ed pro va\u0161e podnik\u00e1n\u00ed<\/h2>\n <\/div>\n <div class=\"_text_1k55i_498\">\n <p>COVNA Industrial Automation Co., Ltd. byla zalo\u017eena v roce 2000, automatizovan\u00fd specialista na ventily. Se s\u00eddlem v Dongguan \u010c\u00edn\u011b, se 3 v\u00fdrobn\u00edmi z\u00e1kladnami um\u00edst\u011bn\u00fdmi v Ningbo, Wenzhou a Dongguan.<\/p>\n <p>Poskytujeme elektrick\u00fd ventil, elektromagnetick\u00fd ventil, pneumatick\u00fd ventil, elektrick\u00fd \u0161oup\u00e1tkov\u00fd ventil, elektrick\u00fd klapkov\u00fd ventil, pneumatick\u00fd regula\u010dn\u00ed ventil, motorizovan\u00fd ventil, pneumatick\u00fd no\u017eov\u00fd \u0161oup\u00e1tkov\u00fd ventil, regula\u010dn\u00ed ventil pneumatick\u00fd, pneumatick\u00fd ovl\u00e1dan\u00fd ventil, motorizovan\u00fd ovl\u00e1dan\u00fd ventil, elektrick\u00fd kulov\u00fd ventil, elektrick\u00fd ovl\u00e1dan\u00fd kulov\u00fd ventil, kulov\u00fd ventil, \u0161oup\u00e1tkov\u00fd ventil, klapkov\u00fd ventil, kulov\u00fd ventil atd., M\u016f\u017eete si prohl\u00e9dnout souvisej\u00edc\u00ed produkty a zah\u00e1jit konzultace na na\u0161ich webov\u00fdch str\u00e1nk\u00e1ch.<\/p>\n <\/div> <a href=\"https:\/\/cs.covna-china.com\/page\/about-us.html\" class=\"btn _btn-more_1k55i_706\" name=\"btn-section-about\">\u010ct\u011bte V\u00edce<\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section class=\"_section-block_1k55i_573 _section-padding_1k55i_514\"><div class=\"_container_1k55i_128\">\n <h2 style=\"text-align:center\">V\u00fdrobce klapkov\u00fdch ventil\u016f<\/h2>\n <p>Ventily lze pou\u017e\u00edt k \u0159\u00edzen\u00ed pr\u016ftoku r\u016fzn\u00fdch typ\u016f kapalin, jako je vzduch, voda, p\u00e1ra, r\u016fzn\u00e1 korozivn\u00ed m\u00e9dia, bahno, olej, tekut\u00e9 kovy a radioaktivn\u00ed m\u00e9dia. Hraje hlavn\u011b roli od\u0159\u00edznut\u00ed a \u0161krcen\u00ed potrub\u00ed. Otev\u00edrac\u00ed a zav\u00edrac\u00ed \u010d\u00e1st klapkov\u00e9ho ventilu je kotou\u010dovit\u00e1 klapkov\u00e1 deska, kter\u00e1 se ot\u00e1\u010d\u00ed kolem sv\u00e9 vlastn\u00ed osy v t\u011ble ventilu, aby dos\u00e1hla \u00fa\u010delu otev\u00edr\u00e1n\u00ed a zav\u00edr\u00e1n\u00ed nebo nastavov\u00e1n\u00ed.<\/p>\n <\/div>\n <\/section><section id=\"section-products\" class=\"_section-padding_1k55i_514 _section-product_1k55i_572\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">Vybran\u00e9 produkty<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Sb\u00edrka o COVNA<\/h2>\n <\/div>\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/hard-seal-flange-three-eccentric-pneumatic-butterfly-valve.html\" title=\"Hard Seal P\u0159\u00edruba T\u0159i excentrick\u00e9 pneumatick\u00e9 klapky\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639993251_Hard-Seal-Pneumatic-Flange-Three-Eccentric-Butterfly_yythk.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"Hard Seal P\u0159\u00edruba T\u0159i excentrick\u00e9 pneumatick\u00e9 klapky\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/hard-seal-flange-three-eccentric-pneumatic-butterfly-valve.html\">Hard Seal P\u0159\u00edruba T\u0159i excentrick\u00e9 pneumatick\u00e9 klapky<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/double-offset-carbon-steel-hard-seal-pneumatic-control-butterfly-valve-hk59-d.html\" title=\"Dvojit\u00fd offsetov\u00fd uhl\u00edkov\u00fd ocelov\u00fd pevn\u00fd uz\u00e1v\u011br pneumatick\u00fd klapkov\u00fd ventil HK59-D\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639963073_Double-Offset-Carbon-Steel-Hard-Seal-Pneumatic-Cont.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"Dvojit\u00fd offsetov\u00fd uhl\u00edkov\u00fd ocelov\u00fd pevn\u00fd uz\u00e1v\u011br pneumatick\u00fd klapkov\u00fd ventil HK59-D\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/double-offset-carbon-steel-hard-seal-pneumatic-control-butterfly-valve-hk59-d.html\">Dvojit\u00fd offsetov\u00fd uhl\u00edkov\u00fd ocelov\u00fd pevn\u00fd uz\u00e1v\u011br pneumatick\u00fd klapkov\u00fd ventil HK59-D<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-hk59d-cast-iron-wafer-pneumatic-butterfly-valve.html\" title=\"COVNA HK59D Litinov\u00e1 desti\u010dka Pneumatick\u00fd klapkov\u00fd ventil\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639743417_COVNA-HK59D-Pneumatic-Actuator-Cast-Iron-Wafer-Butt-(4).jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA HK59D Litinov\u00e1 desti\u010dka Pneumatick\u00fd klapkov\u00fd ventil\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-hk59d-cast-iron-wafer-pneumatic-butterfly-valve.html\">COVNA HK59D Litinov\u00e1 desti\u010dka Pneumatick\u00fd klapkov\u00fd ventil<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/HK60-D-P-CPVC-Series-Electric-Plastic-Butterfly-Valve.html\" title=\"COVNA HK60-D-P CPVC s\u00e9rie plastov\u00fd elektrick\u00fd klapkov\u00fd ventil\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1638781108_COVNA-HK60-D-P-CPVC-Series-Electric-Plastic-Butterfly_yyth.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA HK60-D-P CPVC s\u00e9rie plastov\u00fd elektrick\u00fd klapkov\u00fd ventil\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/HK60-D-P-CPVC-Series-Electric-Plastic-Butterfly-Valve.html\">COVNA HK60-D-P CPVC s\u00e9rie plastov\u00fd elektrick\u00fd klapkov\u00fd ventil<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-hk60-ex-d-explosion-proof-electric-butterfly-valve.html\" title=\"COVNA HK60-EX-D Elektrick\u00fd klapkov\u00fd ventil odoln\u00fd proti v\u00fdbuchu\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1638871894_COVNA-HK60-EX-D-Explosion-Proof-Electric-Butterfly-Valve.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA HK60-EX-D Elektrick\u00fd klapkov\u00fd ventil odoln\u00fd proti v\u00fdbuchu\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-hk60-ex-d-explosion-proof-electric-butterfly-valve.html\">COVNA HK60-EX-D Elektrick\u00fd klapkov\u00fd ventil odoln\u00fd proti v\u00fdbuchu<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/hk60-d-c-cast-iron-fluorine-lined-electric-butterfly-valve.html\" title=\"HK60-D-C Litinov\u00fd elektrick\u00fd klapkov\u00fd ventil s fluorovou pod\u0161\u00edvkou\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1638781353_COVNA-HK60-D-C-Cast-Iron-Electric-Actuator-Fluorine_yythkg.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"HK60-D-C Litinov\u00fd elektrick\u00fd klapkov\u00fd ventil s fluorovou pod\u0161\u00edvkou\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/hk60-d-c-cast-iron-fluorine-lined-electric-butterfly-valve.html\">HK60-D-C Litinov\u00fd elektrick\u00fd klapkov\u00fd ventil s fluorovou pod\u0161\u00edvkou<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-cast-iron-hk60d-f-flange-electric-butterfly-valve.html\" title=\"COVNA Litina HK60D-F p\u0159\u00edrubov\u00fd elektrick\u00fd klapkov\u00fd ventil\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1638779846_COVNA-Cast-Iron-HK60D-F-Electric-Flange-Butterfly-V.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA Litina HK60D-F p\u0159\u00edrubov\u00fd elektrick\u00fd klapkov\u00fd ventil\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-cast-iron-hk60d-f-flange-electric-butterfly-valve.html\">COVNA Litina HK60D-F p\u0159\u00edrubov\u00fd elektrick\u00fd klapkov\u00fd ventil<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/hk60-d-ms-stainless-steel-lug-type-electric-butterfly-valve.html\" title=\"HK60-D-MS Nerezov\u00e1 ocel Typ elektrick\u00e9ho klapkov\u00e9ho ventilu\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639380326_HK60-D-MS-Stainless-Steel-Lug-Type-Electric-Operated_yythk-(1).jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"HK60-D-MS Nerezov\u00e1 ocel Typ elektrick\u00e9ho klapkov\u00e9ho ventilu\" class=\"_img-fluid_1k55i_123\"><h4>Zobrazit podrobnosti<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/hk60-d-ms-stainless-steel-lug-type-electric-butterfly-valve.html\">HK60-D-MS Nerezov\u00e1 ocel Typ elektrick\u00e9ho klapkov\u00e9ho ventilu<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"text-center\"> <a href=\"https:\/\/cs.covna-china.com\/products\/all.html\" class=\"btn _btn-more_1k55i_706\" name=\"btn-section-products\">Zobrazit v\u00edce<\/a> <\/div>\n <\/div>\n <\/section><section id=\"section-reviews\" class=\"_section-padding_1k55i_514 _section-reviews_1k55i_648 scrollspy\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">U\u017eivatelsk\u00e9 recenze<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Co \u0159\u00edkaj\u00ed u\u017eivatel\u00e9 o COVNA<\/h2>\n <\/div>\n <div class=\"_slider-wrap_1k55i_471\">\n <div class=\"slider-reviews\">\n <div class=\"slider-item\">\n <div class=\"review-item\"> <svg class=\"icon\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\"><path fill=\"currentColor\" d=\"M10,7L8,11H11V17H5V11L7,7H10M18,7L16,11H19V17H13V11L15,7H18Z\"><\/path><\/svg><p>Zpracov\u00e1n\u00ed je na sv\u00e9m m\u00edst\u011b a kvalita je na prvn\u00ed pohled velmi dobr\u00e1!<\/p>\n <div class=\"name-box\">\n <div class=\"name-text\">\n <h5 class=\"name-title\">Lev<\/h5>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"slider-item\">\n <div class=\"review-item\"> <svg class=\"icon\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\"><path fill=\"currentColor\" d=\"M10,7L8,11H11V17H5V11L7,7H10M18,7L16,11H19V17H13V11L15,7H18Z\"><\/path><\/svg><p>St\u00e1l\u00ed z\u00e1kazn\u00edci, spolupr\u00e1ce byla velmi spokojen\u00e1!<\/p>\n <div class=\"name-box\">\n <div class=\"name-text\">\n <h5 class=\"name-title\">Sv\u011bty<\/h5>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"slider-item\">\n <div class=\"review-item\"> <svg class=\"icon\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\"><path fill=\"currentColor\" d=\"M10,7L8,11H11V17H5V11L7,7H10M18,7L16,11H19V17H13V11L15,7H18Z\"><\/path><\/svg><p>Zpracov\u00e1n\u00ed je v po\u0159\u00e1dku, velikost je spr\u00e1vn\u00e1, design je na sv\u00e9m m\u00edst\u011b a slu\u017eba je pozorn\u00e1 a pozorn\u00e1!<\/p>\n <div class=\"name-box\">\n <div class=\"name-text\">\n <h5 class=\"name-title\">Kepler<\/h5>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-faq\" class=\"_section-padding_1k55i_514 _section-faq_1k55i_648\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">\u010casto kladen\u00e9 dotazy<\/h5>\n <h2 class=\"_section-title_1k55i_498\">M\u00e1te n\u011bjak\u00fd dotaz?<\/h2>\n <\/div>\n <div class=\"_faq-list_18vzw_465\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\">\n <div class=\"_card_1k55i_233 _faq-item_1k55i_652\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n <div class=\"_card-header_18vzw_353\">\n <h4> <a data-toggle=\"faq_collapse\" href=\"#faq0\"> <span itemprop=\"name\">Struktura klapky<\/span> <svg class=\"_icon_1k55i_658\" viewbox=\"0 0 24 24\"><path d=\"M7.41,8.58L12,13.17L16.59,8.58L18,10L12,16L6,10L7.41,8.58Z\"><\/path><\/svg><\/a> <\/h4>\n <\/div>\n <div itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"faq0\" class=\"_collapse_18vzw_331 _open_18vzw_495\">\n <div class=\"_card-body_1k55i_245\">\n <p itemprop=\"text\">Klapka je jednou z nej\u010dast\u011bji pou\u017e\u00edvan\u00fdch ventil\u016f v potrubn\u00edch syst\u00e9mech pr\u016fmyslov\u00e9 v\u00fdroby. Hlavn\u00edmi sou\u010d\u00e1stmi jsou t\u011bleso ventilu, sedlo ventilu, d\u0159\u00edk ventilu, klapka a p\u0159evodov\u00e9 za\u0159\u00edzen\u00ed. Existuje mnoho typ\u016f klapkov\u00fdch ventil\u016f a jejich klasifika\u010dn\u00ed metody jsou tak\u00e9 rozmanit\u00e9.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_card_1k55i_233 _faq-item_1k55i_652\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n <div class=\"_card-header_18vzw_353\">\n <h4> <a data-toggle=\"faq_collapse\" href=\"#faq1\"> <span itemprop=\"name\">Pracovn\u00ed princip klapky<\/span> <svg class=\"_icon_1k55i_658\" viewbox=\"0 0 24 24\"><path d=\"M7.41,8.58L12,13.17L16.59,8.58L18,10L12,16L6,10L7.41,8.58Z\"><\/path><\/svg><\/a> <\/h4>\n <\/div>\n <div itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"faq1\" class=\"_collapse_18vzw_331\">\n <div class=\"_card-body_1k55i_245\">\n <p itemprop=\"text\">Klapkov\u00fd ventil se otev\u00edr\u00e1 a zav\u00edr\u00e1 ovl\u00e1d\u00e1n\u00edm p\u0159evodov\u00e9ho za\u0159\u00edzen\u00ed pro ot\u00e1\u010den\u00ed d\u0159\u00edku ventilu a sou\u010dasn\u011b d\u0159\u00edk ventilu poh\u00e1n\u00ed ot\u00e1\u010den\u00ed klapkov\u00e9 desky. Ve v\u00e1lcov\u00e9m kan\u00e1lu t\u011blesa klapkov\u00e9ho ventilu je k d\u0159\u00edku ventilu p\u0159ipojena tal\u00ed\u0159ov\u00e1 klapka. Ot\u00e1\u010den\u00ed d\u0159\u00edku ventilu bude \u0159\u00eddit klapkovou desku, aby se ot\u00e1\u010dela pro regulaci pr\u016ftoku. \u00dahel nato\u010den\u00ed je mezi 0 a 90 stupni. Kdy\u017e se klapka oto\u010d\u00ed o 90 stup\u0148\u016f Klapkov\u00fd ventil je v pln\u011b otev\u0159en\u00e9 poloze v potrub\u00ed. V t\u00e9to dob\u011b je pouze tlou\u0161\u0165ka mot\u00fdl\u00ed desky jedin\u00fdm odporem pro pr\u016fchod tekutiny. Pr\u016ftokov\u00fd odpor je velmi mal\u00fd. Sou\u010dasn\u011b, kdy\u017e je \u00fahel ot\u00e1\u010den\u00ed mot\u00fdl\u00ed desky mezi 0-90, lze jej pou\u017e\u00edt k nastaven\u00ed m\u00e9dia. t\u00e9ct.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_card_1k55i_233 _faq-item_1k55i_652\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n <div class=\"_card-header_18vzw_353\">\n <h4> <a data-toggle=\"faq_collapse\" href=\"#faq2\"> <span itemprop=\"name\">Jak\u00fd je rozd\u00edl mezi kulov\u00fdm ventilem a klapkov\u00fdm ventilem?<\/span> <svg class=\"_icon_1k55i_658\" viewbox=\"0 0 24 24\"><path d=\"M7.41,8.58L12,13.17L16.59,8.58L18,10L12,16L6,10L7.41,8.58Z\"><\/path><\/svg><\/a> <\/h4>\n <\/div>\n <div itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"faq2\" class=\"_collapse_18vzw_331\">\n <div class=\"_card-body_1k55i_245\">\n <p itemprop=\"text\">Rozd\u00edl mezi kulov\u00fdm a klapkov\u00fdm ventilem Nejv\u011bt\u0161\u00ed rozd\u00edl mezi klapkov\u00fdm ventilem a kulov\u00fdm ventilem spo\u010d\u00edv\u00e1 v tom, \u017ee otev\u00edrac\u00ed a zav\u00edrac\u00ed \u010d\u00e1st klapky je deska, zat\u00edmco kulov\u00fd ventil je kulov\u00fd ventil. Deska ventilu klapky a c\u00edvka kulov\u00e9ho ventilu se ot\u00e1\u010dej\u00ed kolem sv\u00e9 vlastn\u00ed osy; kulov\u00fd kohout T\u011bsnic\u00ed plocha je kulov\u00fd povrch.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-news\" class=\"_section-padding_1k55i_514 _section-blog_1k55i_706\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h2 class=\"_section-title_1k55i_498\">Na\u0161e aktualizace a p\u0159\u00edsp\u011bvky na blogu<\/h2>\n <\/div>\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-4_1k55i_170\">\n <div class=\"_blog-item_1k55i_710 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/article\/precautions-when-selecting-butterfly-valve.html\" title=\"klapka| Bezpe\u010dnostn\u00ed opat\u0159en\u00ed p\u0159i v\u00fdb\u011bru klapky\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/69a3b714-3f16-4385-8557-76724d31a897.png?t=1666644800&x-oss-process=image\/resize,w_600,h_400\/format,webp\" width=\"600\" height=\"400\" alt=\"klapka| Bezpe\u010dnostn\u00ed opat\u0159en\u00ed p\u0159i v\u00fdb\u011bru klapky\" class=\"_img-fluid_1k55i_123\"><div class=\"_date-time_1k55i_714\">23. prosince<\/div>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/article\/precautions-when-selecting-butterfly-valve.html\">klapka| Bezpe\u010dnostn\u00ed opat\u0159en\u00ed p\u0159i v\u00fdb\u011bru klapky<\/a> <\/h4>\n <p>{keyword},Podle vlastnost\u00ed klapky by m\u011bly b\u00fdt p\u0159i v\u00fdb\u011bru klapkov\u00fdch ventil\u016f dodr\u017eov\u00e1ny n\u00e1sleduj\u00edc\u00ed z\u00e1sady<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-4_1k55i_170\">\n <div class=\"_blog-item_1k55i_710 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/article\/features-of-butterfly-valve.html\" title=\"klapka | Vlastnosti klapky\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/a9f79cd8-5456-494e-9b10-5a7ec1ce8e05.png?t=1666644800&x-oss-process=image\/resize,w_600,h_400\/format,webp\" width=\"600\" height=\"400\" alt=\"klapka | Vlastnosti klapky\" class=\"_img-fluid_1k55i_123\"><div class=\"_date-time_1k55i_714\">23. prosince<\/div>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/article\/features-of-butterfly-valve.html\">klapka | Vlastnosti klapky<\/a> <\/h4>\n <p>{keyword},Klapka m\u00e1 90. Vlastnosti, jako je rychl\u00e9 otev\u00edr\u00e1n\u00ed a zav\u00edr\u00e1n\u00ed ot\u00e1\u010den\u00ed, n\u00edzk\u00e1 hmotnost, mal\u00e1 velikost struktury (zejm\u00e9na klapkov\u00fd ventil desti\u010dky) a dal\u0161\u00ed v\u00fdhody.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-4_1k55i_170\">\n <div class=\"_blog-item_1k55i_710 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/article\/where-the-butterfly-valve-is-applicable.html\" title=\"klapka | Kde je pou\u017eiteln\u00fd klapkov\u00fd ventil\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/6148e12e-dcc5-419e-99f8-6df68fa341e8.png?t=1666644800&x-oss-process=image\/resize,w_600,h_400\/format,webp\" width=\"600\" height=\"400\" alt=\"klapka | Kde je pou\u017eiteln\u00fd klapkov\u00fd ventil\" class=\"_img-fluid_1k55i_123\"><div class=\"_date-time_1k55i_714\">23. prosince<\/div>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/article\/where-the-butterfly-valve-is-applicable.html\">klapka | Kde je pou\u017eiteln\u00fd klapkov\u00fd ventil<\/a> <\/h4>\n <p>{kl\u00ed\u010dov\u00e9 slovo},Klapky jsou vhodn\u00e9 pro regulaci pr\u016ftoku. Vzhledem k tomu, \u017ee tlakov\u00e1 ztr\u00e1ta klapky v potrub\u00ed je pom\u011brn\u011b velk\u00e1, je asi trojn\u00e1sobek \u0161oup\u00e1tka.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"text-center\"> <a href=\"https:\/\/cs.covna-china.com\/articles\/all.html\" class=\"btn _btn-more_1k55i_706\" name=\"btn-section-news\">\u010ct\u011bte V\u00edce<\/a> <\/div>\n <\/div>\n <\/section><section class=\"_section-contact_1k55i_757 _section-padding_1k55i_514\" id=\"section-contact\"><div class=\"_container_1k55i_128\">\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-5_1k55i_171\">\n <div class=\"_contact-info_1k55i_761\">\n <h5>Kontat N\u00e1s<\/h5>\n <h2 class=\"_section-title_1k55i_498\">M\u00e1te n\u011bjak\u00fd dotaz? 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Po\u010dkejte pros\u00edm...<\/div>\n <\/div>\n <div class=\"_msg_1k55i_777 _msg-success_1k55i_777\">\n <div class=\"_alert_1k55i_251 _alert-success_1k55i_251\" role=\"alert\"> <svg class=\"_icon_1k55i_658\" viewbox=\"0 0 24 24\"><path d=\"M9,20.42L2.79,14.21L5.62,11.38L9,14.77L18.88,4.88L21.71,7.71L9,20.42Z\"><\/path><\/svg>\u00dasp\u011bch! D\u011bkujeme za zasl\u00e1n\u00ed va\u0161\u00ed zpr\u00e1vy! Nezapome\u0148te zkontrolovat sv\u016fj e-mail pro potvrzen\u00ed! 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href=\"https:\/\/cs.covna-china.com\/dlp\/pneumatic-knife-gate-valve-production.html\">v\u00fdroba pneumatick\u00fdch no\u017eov\u00fdch \u0161oup\u00e1tek<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/pneumatic-knife-gate-valve-seller.html\">prodejce pneumatick\u00e9ho no\u017eov\u00e9ho \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/pneumatic-knife-gate-valve-sellers.html\">prodejci pneumatick\u00fdch no\u017eov\u00fdch \u0161oup\u00e1tk\u016f<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/pneumatic-knife-gate-valve-supplier.html\">dodavatel pneumatick\u00e9ho no\u017eov\u00e9ho \u0161oup\u00e1tka<\/a> <\/div>\n <\/div>\n <div class=\"tab-pane\" id=\"tab-7\" role=\"tabpanel\" aria-labelledby=\"tab-7\">\n <div class=\"_tags-box_13kno_350\"> <a href=\"https:\/\/cs.covna-china.com\/dlp\/ball-valve-agencies.html\">t\u011bsn\u011bn\u00ed pro kulov\u00e9 kohouty<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/ball-valve-agency.html\">agentura kulov\u00e9ho 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href=\"https:\/\/cs.covna-china.com\/dlp\/ball-valve-seller.html\">prodejce kulov\u00fdch kohout\u016f<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/ball-valve-sellers.html\">prodejci kulov\u00fdch kohout\u016f<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/ball-valve-supplier.html\">dodavatel kulov\u00fdch kohout\u016f<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/ball-valve-suppliers.html\">dodavatel\u00e9 kulov\u00fdch kohout\u016f<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/ball-valve-wholesaler.html\">velkoobchod s kulov\u00fdmi kohouty<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/china-ball-valve.html\">porcel\u00e1nov\u00fd kulov\u00fd ventil<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/custom-ball-valve.html\">vlastn\u00ed kulov\u00fd kohout<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/custom-made-ball-valve.html\">kulov\u00fd kohout na zak\u00e1zku<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/odm-ball-valve.html\">odm kulov\u00fd ventil<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/oem-ball-valve.html\">OEM kulov\u00fd ventil<\/a> <\/div>\n <\/div>\n <div class=\"tab-pane\" id=\"tab-8\" role=\"tabpanel\" aria-labelledby=\"tab-8\">\n <div class=\"_tags-box_13kno_350\"> <a href=\"https:\/\/cs.covna-china.com\/dlp\/best-gate-valve.html\">nejlep\u0161\u00ed \u0161oup\u00e1tko<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/china-gate-valve.html\">porcel\u00e1nov\u00fd \u0161oup\u00e1tko<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/custom-gate-valve.html\">zak\u00e1zkov\u00fd \u0161oup\u00e1tkov\u00fd ventil<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/custom-made-gate-valve.html\">\u0161oup\u00e1tkov\u00fd ventil na zak\u00e1zku<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/customized-gate-valve.html\">\u0161oup\u00e1tko na m\u00edru<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-company.html\">spole\u010dnost vyr\u00e1b\u011bj\u00edc\u00ed \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-factories.html\">tov\u00e1rny na \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-factory.html\">tov\u00e1rna na \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-in-china.html\">\u0161oup\u00e1tko v \u010c\u00edn\u011b<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-manufacturer.html\">v\u00fdrobce \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-manufacturers.html\">v\u00fdrobci \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-supplier.html\">dodavatel \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-suppliers.html\">dodavatel\u00e9 \u0161oup\u00e1tka<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/gate-valve-wholesaler.html\">velkoobchod s \u0161oup\u00e1tky<\/a> <a href=\"https:\/\/cs.covna-china.com\/dlp\/globe-valve-vs-gate-valve.html\">kulov\u00fd ventil vs 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