{"product_id":"15mm-brass-double-check-valve","title":"15mm DZR Brass Double Check Valve","description":"\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eDouble check valve with test port and compression ends - brass plug\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eThese check valves are monodirectional devices, allowing the backflow prevention of fluid under pressure. They are normally used in domestic water installations, booster pump systems, heating systems, central heating systems, heat generators (wall-mounted boilers, solid fuel generators, heat pumps). Sealing is permitted through forces exerted by a spring and by the fluid pressure against a gasket which guarantees the seal even at very low back pressures. Moreover, the force of the spring allows the valve to have a universal characteristic concerning the installation position. The peculiarity of this range of valves is the presence of two check valve inserts and one test port between the two inserts. The double check valve creates an intermediate chamber to separate with more safety the downstream fluid from the upstream fluid, avoiding any backflow toward the upstream circuit. The test port can be used to check the correct working of the downstream check\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003evalve.\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eThis valve can be used as antipollution device in potable water systems.\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eWorking temperature range (peaks):\u003cb\u003e -20 \u003c\/b\u003e\u003ci\u003e(see suitable fluids)\u003c\/i\u003e\u003cb\u003e–110 °C\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eWorking temperature range: \u003cb\u003e0 \u003c\/b\u003e\u003ci\u003e(no frost) \u003c\/i\u003e\u003cb\u003e–95 °C\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eOpening pressure: \u003cb\u003e0,05 bar\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eMax working pressure: \u003cb\u003e16 bar\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eSuitable fluids: \u003cb\u003ewater for thermal systems, glycol solutions (max 30%), potable water\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eThreaded connections: \u003cb\u003eISO 228-1\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\u003cb\u003ecompression ends EN 1254-2\u003c\/b\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003eMaterials\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\n\u003cb\u003e1 - \u003c\/b\u003eBody: \u003cb\u003ebrass EN 12165 CW602N (DZR)\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\n\u003cb\u003e2 - \u003c\/b\u003eNut: \u003cb\u003ebrass EN 12165 CW617N\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\n\u003cb\u003e3 - \u003c\/b\u003eOlive: \u003cb\u003eannealed copper\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\n\u003cb\u003e4 - \u003c\/b\u003ePlug: \u003cb\u003ebrass EN 12164 CW602N (DZR)\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\n\u003cb\u003e5 - \u003c\/b\u003eInsert: \u003cb\u003ePOM+NBR\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin-bottom: 0cm;\"\u003e\n\u003cb\u003e6 - \u003c\/b\u003eLocking ring: \u003cb\u003ephosphorous bronze\u003c\/b\u003e\n\u003c\/h3\u003e","brand":"Spatec NI Ltd","offers":[{"title":"Default Title","offer_id":52035891626313,"sku":"10015002","price":5.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/3829\/8185\/files\/15mm_DZR_Brass_Double_Check_Valve_2nd.png?v=1776175163","url":"https:\/\/spatec.co.uk\/products\/15mm-brass-double-check-valve","provider":"Spatec NI Ltd","version":"1.0","type":"link"}