{"product_id":"inta-zero-anti-freeze-valve-1-male-x-1-female-swivel","title":"Inta Zero Anti-Freeze Valve 1\" BSP Male x 1\" Female Swivel","description":"\u003ch2\u003eInta Zero Anti-Freeze Valve 1\" BSP Male x 1\" Female Swivel (ZERO1SW)\u003c\/h2\u003e\n\u003cp\u003eThe Inta Zero is a mechanical anti-freeze valve for air source heat pump flow and return pipework. If the water temperature at the valve falls to 3°C (for example during a power cut in freezing weather), it opens and discharges a small flow of water so the water in the outdoor pipework keeps moving and does not freeze. It closes again at 4°C. This version has a 1\" BSP male thread on one end and a 1\" BSP female swivel nut on the other, so it fits directly onto standard 1\" heat pump connections.\u003c\/p\u003e\n\u003ch3\u003eKey points\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOpens at 3°C, closes at 4°C (sensitivity ±1°C)\u003c\/li\u003e\n\u003cli\u003eNo power supply needed: fully automatic mechanical operation\u003c\/li\u003e\n\u003cli\u003e1\" BSP male x 1\" BSP female swivel connections\u003c\/li\u003e\n\u003cli\u003eDouble O-ring sealing and protective debris ring\u003c\/li\u003e\n\u003cli\u003eCan be fully insulated in line with Building Regulations Part L without affecting performance\u003c\/li\u003e\n\u003cli\u003eLets you run the system on plain water rather than glycol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e1 x Inta Zero anti-freeze valve, 1\" BSP male x 1\" female swivel (ZERO1SW)\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer part number\u003c\/td\u003e\n\u003ctd\u003eZERO1SW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003e1\" BSP male x 1\" BSP female swivel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening \/ closing temperature\u003c\/td\u003e\n\u003ctd\u003e3°C \/ 4°C (±1°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum inlet pressure (static)\u003c\/td\u003e\n\u003ctd\u003e10 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking temperature range\u003c\/td\u003e\n\u003ctd\u003e0 to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient temperature range\u003c\/td\u003e\n\u003ctd\u003e-30 to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eWater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e£114.99 inc VAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOptions\u003c\/h3\u003e\n\u003cp\u003eAlso available in 1 1\/4\" BSP male, 28mm and 35mm compression versions. One valve is normally fitted on each of the flow and return pipes at the heat pump, so most installs need two.\u003c\/p\u003e\n\u003ch3\u003eInstallation and compliance\u003c\/h3\u003e\n\u003cp\u003eFit outdoors, close to the heat pump, in the vertical position with the outlet facing downwards. Protect the valve from rain, snow and direct sunlight, and keep the system pressurised at all times, including while the valve is draining. Follow the heat pump manufacturer's instructions and the Inta installation and operation manual. Installation should be carried out by a competent heating engineer.\u003c\/p\u003e\n\u003ch3\u003eDelivery and collection\u003c\/h3\u003e\n\u003cp\u003eFree UK delivery on orders over £50 (£4.99 under £50). Free collection from our Lincoln unit at Leafbridge Business Park, usually ready within 24 hours.\u003c\/p\u003e\n\u003cp\u003eManufacturer datasheet is in the PDF downloads at the bottom of this page.\u003c\/p\u003e\n\u003cdiv class=\"shop-the-range\"\u003e\n\u003ch3\u003eShop the range\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/inta-anti-freeze-valve-1-1-4-bsp-pm\"\u003eInta Zero Anti-Freeze Valve 1 1\/4\" BSP Male\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/intaklean-hp-magnetic-heat-pump-filter-28mm-copy\"\u003eInta Zero Anti-Freeze Valve 28mm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/inta-zero-anti-freeze-valve-35mm\"\u003eInta Zero Anti-Freeze Valve 35mm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/intraklean-hp-magnetic-heat-pump-filter-28mm\"\u003eIntaKlean HP Magnetic Heat Pump Filter 28mm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/heat-pump-pipework-protection\"\u003eHeat Pump Pipework \u0026amp; Protection\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Inta","offers":[{"title":"1\"","offer_id":60152776294784,"sku":"PLUMHEAT5537","price":114.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/6344\/2467\/files\/ZERO1SW-with-Patent-Pending-Logo-scaled.jpg?v=1792390227","url":"https:\/\/shop.the-glow-group.co.uk\/products\/inta-zero-anti-freeze-valve-1-male-x-1-female-swivel","provider":"The Glow Group","version":"1.0","type":"link"}