{"product_id":"systemtrenner-mit-kontrollierbaren-druckreduzierten-zonen-typ-ba","title":"BA Compact 1\/ system separator2\" with controllable differential pressure","description":"\u003ch2\u003e\u003cspan\u003eSystem separator with controllable pressure-reduced zones type BA\u003c\/span\u003e\u003c\/h2\u003e  \u003cdiv class=\"art-detail row-wr\"\u003e  \u003cdiv class=\"art-detail__wrapper\"\u003e  \u003cdiv class=\"art-detail__specification\"\u003e  \u003cdiv id=\"specificationText0\" class=\"art-detail__specification-value collapse\"\u003eSystem separator with controllable pressure-reduced zones, type BA, compact version. Certified according to EN 12729. Type BA. Connection: G 1\/2\" A (ISO 228-1) AG, Union. Operating differential pressure: 14 kPa. Average temperature range: 0–65 °C. PN (nominal pressure): PN 10. Material: dezincification-resistant brass DR \u0026quot;low-lead\u0026quot;.\u003c\/div\u003e  \u003cdiv class=\"art-detail__specification-value collapse\"\u003e\u003cbr\u003e\u003c\/div\u003e  \u003cdiv class=\"art-detail__specification-value collapse\"\u003e  \u003cdiv class=\"product__description\"\u003e  \u003cdiv class=\"product__tech-data p-tech\"\u003e  \u003ch3 id=\"technical-data\" class=\"section-title\"\u003eTechnical data\u003c\/h3\u003e  \u003cul\u003e  \u003cli class=\"p-tech__el\"\u003e  \u003cspan class=\"p-tech__label\"\u003eOperating differential pressure\u003c\/span\u003e:\u003cspan\u003e  \u003c\/span\u003e\u003cspan class=\"p-tech__value\"\u003e14 kPa\u003c\/span\u003e  \u003c\/li\u003e  \u003cli class=\"p-tech__el\"\u003e  \u003cspan class=\"p-tech__label\"\u003eMedium temperature range\u003c\/span\u003e:\u003cspan\u003e  \u003c\/span\u003e\u003cspan class=\"p-tech__value\"\u003e0–65 °C\u003c\/span\u003e  \u003c\/li\u003e  \u003cli class=\"p-tech__el\"\u003e  \u003cspan class=\"p-tech__label\"\u003ePN (Nominal Pressure)\u003c\/span\u003e:\u003cspan\u003e  \u003c\/span\u003e\u003cspan class=\"p-tech__value\"\u003ePN 10\u003c\/span\u003e  \u003c\/li\u003e  \u003cli class=\"p-tech__el\"\u003e  \u003cspan class=\"p-tech__label\"\u003ematerial\u003c\/span\u003e:\u003cspan\u003e  \u003c\/span\u003e\u003cspan class=\"p-tech__value\"\u003edezincification-resistant brass DR \u0026quot;low-lead\u0026quot;\u003c\/span\u003e  \u003c\/li\u003e  \u003c\/ul\u003e  \u003c\/div\u003e  \u003cdiv class=\"product__lowlead\"\u003e  \u003cul\u003e  \u003cli\u003e\u003cimg src=\"https:\/\/www.caleffi.com\/themes\/custom\/caleffi_base\/images\/logos\/low-lead.svg\" width=\"64\" height=\"38\" alt=\"Low Lead\" title=\"Low Lead\" style=\"font-size: 0.875rem;\"\u003e\u003c\/li\u003e  \u003c\/ul\u003e  \u003c\/div\u003e  \u003cdiv class=\"product__note\" style=\"text-align: left;\"\u003e  \u003ch3 id=\"note\" class=\"section-title\" style=\"text-align: left;\"\u003eNotes on the system separator\u003c\/h3\u003e  \u003cp\u003eA front-mounted mudguard of the 577 series must absolutely be installed.\u003c\/p\u003e  \u003ch3\u003eHow it works\u003c\/h3\u003e  \u003cp\u003eThe CA type non-controllable differential pressure backflow preventer consists of: an inlet backflow preventer (1), an outlet backflow preventer (2), and a drain valve (3). The two backflow preventers separate three different zones with three different pressures: the inlet chamber (A), the intermediate chamber (B), also known as the differential pressure zone, and the outlet chamber (C). The drain valve (3) is located in the middle section. The drain valve (3) is directly connected to the diaphragm (4). This movable assembly is controlled during opening and closing by the pressure differential between the inlet and outlet pressures of the backflow preventer and the contrast spring (5).\u003c\/p\u003e  \u003ch4 style=\"text-align: left;\"\u003eCorrect flow rates\u003c\/h4\u003e  \u003cp style=\"text-align: left;\"\u003eUnder normal flow conditions, both backflow preventers\u003cimg src=\"https:\/\/gemashop.de\/cdn\/shop\/files\/koreekter_durchfluss_160x160.png\" alt=\"CST12 korrekter Durchfluss\" style=\"margin: 5px 5px 5px 2px; float: left;\" data-original=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/koreekter_durchfluss_160x160.png?v=1722413877\" data-files=\"koreekter_durchfluss.png\" loading=\"lazy\"\u003e\u003cbr\u003eopen, whereby the pressure in the intermediate chamber (B) is always below the inlet pressure (A) due to a pre-calculated pressure loss at the first backflow preventer (1).\u003cbr\u003eThe pressure difference therefore acts on the inner membrane (4) and generates a force that opens the drain valve (3) communicating with the atmosphere.\u003cbr\u003ePressure on the contrast spring (5) keeps it closed.\u003c\/p\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003cdiv style=\"text-align: right;\" class=\"product__certifications\"\u003e  \u003cp class=\"section-title\"\u003e  \u003c\/p\u003e  \u003ch4 class=\"section-title\"\u003eInlet-side negative pressure\u003c\/h4\u003e  \u003cp class=\"section-title\"\u003e\u003cbr\u003eWhen the inlet pressure drops, both backflow preventers close.\u003cimg style=\"margin: 5px 2px 5px 5px; float: right;\" src=\"https:\/\/gemashop.de\/cdn\/shop\/files\/Unterdruck_ES_160x160.png\" alt=\"Unterdruck\" data-original=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/Unterdruck_ES_160x160.png?v=1722414361\" data-files=\"Unterdruck_ES.png\" loading=\"lazy\"\u003e The drain valve (3) opens as soon as the pressure difference Δp between the inlet chamber (A) and the intermediate chamber (B) reaches a value just below the pre-calculated value at the contrast spring (5). The draining continues until the intermediate chamber of the system separator is empty. In this way, an air zone (safety zone) is created, preventing contaminated water from flowing back from circuit (C) into the water supply network, even if the backflow preventer (2) fails. Once normal conditions are restored (inlet pressure higher than outlet pressure), the drain valve closes.\u003cbr\u003eThe system separator is functional again.\u003c\/p\u003e  \u003ch4 style=\"text-align: left;\" class=\"section-title\"\u003eOutlet overpressure\u003c\/h4\u003e  \u003cp class=\"section-title\" style=\"text-align: left;\"\u003eIf the pressure in the outlet chamber (C) rises to a level that exceeds the inlet pressure (A), the backflow preventer (2) closes, thus preventing the backflow of water already supplied to the consumer towards the public water supply. If the backflow preventer (2) leaks or another malfunction occurs in the system separator, the system separator will always interrupt (separate) the connection between the consumer and the public water supply.Like all devices with a positive effect, the system separator is technically and structurally designed to guarantee the highest safety standards in every situation.\u003c\/p\u003e  \u003ch3 class=\"section-title\" style=\"text-align: left;\"\u003eTechnical data \u003c\/h3\u003e  \u003cul\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eSystem separator type BA. AG connections.\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003e1\/2\".  Housing, lid and drain seat\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eMade of dezincification-resistant brass alloy.\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eRods of the restraint system and springs\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003emade of stainless steel.\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eSeals made of NBR.\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eMaximum operating temperature: 65 degrees C.\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eMaximum operating pressure: 10 bar.\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eActive Safety device.\u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eComplete with upstream, intermediate and downstream measuring connections \u003c\/li\u003e  \u003cli class=\"section-title\" style=\"text-align: left;\"\u003eDrain funnel with pipe attachment.\u003cbr\u003e  \u003c\/li\u003e  \u003c\/ul\u003e  \u003ch3 id=\"certifications\" class=\"section-title\" style=\"text-align: left;\"\u003eDownload\u003c\/h3\u003e  \u003cul\u003e  \u003cli style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/CST12_Einbauanleitung.pdf?v=1722412612\" title=\"Einbauanleitung CT12\" rel=\"noopener\" target=\"_blank\" aria-label=\"Besuchen Sie eine Webseite über Einbauanleitung CT12\"\u003eInstallation instructions\u003c\/a\u003e\u003c\/li\u003e  \u003cli style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/Bedienungsanleitung_CT12.pdf?v=1722412746\" title=\"Bedienungsanleitung CT12\" rel=\"noopener\" target=\"_blank\" aria-label=\"Besuchen Sie eine Webseite über Bedienungsanleitung CT12\"\u003eUser manual\u003c\/a\u003e\u003c\/li\u003e  \u003c\/ul\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e","brand":"Caleffi","offers":[{"title":"Default Title","offer_id":49131569873244,"sku":"CST12","price":121.35,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7796\/6428\/files\/systemtrenner-ba-kompakt-12-mit-kontrollierbarem-differenzdruck-1050514.png?v=1770692605","url":"https:\/\/nl.gemashop.de\/en\/products\/system-separator-with-controllable-pressure-reduced-zones-type-ba","provider":"GEMA Shop","version":"1.0","type":"link"}