{"product_id":"air-source-heat-pump-antifreeze-valve-automatic","title":"Air Source Heat Pump Antifreeze Valve – Automatic Frost Protection – 28mm \/ AFV001","description":"\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003eProduct Description\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAntifreeze Valve\u003c\/strong\u003e is designed to provide automatic frost protection for \u003cstrong\u003eair source heat pump (ASHP) systems and outdoor heating circuits\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen the water temperature falls to approximately \u003cstrong\u003e3°C\u003c\/strong\u003e, the valve automatically opens to discharge water from the system, helping to reduce the risk of freezing and potential damage to heat pumps, pipework and associated components. Once the temperature rises to approximately \u003cstrong\u003e4°C\u003c\/strong\u003e, the valve automatically closes.\u003c\/p\u003e\n\u003cp\u003eManufactured from high-quality \u003cstrong\u003eCW617N brass\u003c\/strong\u003e, the valve offers durable and reliable performance in demanding outdoor heating applications. Its fully mechanical operation requires \u003cstrong\u003eno external power supply\u003c\/strong\u003e, providing dependable freeze protection even during a power failure.\u003c\/p\u003e\n\u003cp\u003eAvailable with \u003cstrong\u003e28mm and 35mm connection options\u003c\/strong\u003e, it is suitable for a wide range of domestic and commercial air source heat pump installations.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eAutomatic freeze protection for air source heat pump systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOpens automatically at approximately 3°C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAutomatically closes when temperature rises to approximately 4°C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo electricity or external power supply required\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHelps protect heat pumps, pipework and outdoor heating circuits from frost damage\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufactured from durable CW617N brass\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSuitable for exposed outdoor heating installations\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompact design for straightforward installation\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAvailable in 28mm and 35mm connection sizes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompression and BSP threaded connection options available\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCW617N Brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-30°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpening Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClosing Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompression \/ BSP Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e28mm \/ 35mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAir Source Heat Pumps \/ Outdoor Heating Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eIdeal for use with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAir source heat pump systems\u003c\/li\u003e\n\u003cli\u003eOutdoor heating pipework\u003c\/li\u003e\n\u003cli\u003eASHP flow and return circuits\u003c\/li\u003e\n\u003cli\u003eDomestic heating installations\u003c\/li\u003e\n\u003cli\u003eCommercial heat pump systems\u003c\/li\u003e\n\u003cli\u003eExposed heating pipework requiring frost protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Use an Antifreeze Valve?\u003c\/h3\u003e\n\u003cp\u003eAir source heat pump systems often include pipework and components installed outdoors. During freezing conditions, stagnant water within exposed sections of the system can freeze and potentially damage pipework, valves or heat pump components.\u003c\/p\u003e\n\u003cp\u003eThe antifreeze valve provides a \u003cstrong\u003esimple mechanical safeguard\u003c\/strong\u003e, automatically responding to low water temperatures without relying on electricity, sensors or electronic controls.\u003c\/p\u003e","brand":"VCC Home","offers":[{"title":"Default Title","offer_id":44426910138419,"sku":"X0001.028.0000-0000","price":45.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/2622\/0851\/files\/x0001-028-0000-0000_60a8dcfc-80c9-4fa4-91fb-3ed995eb6569.png?v=1781165647","url":"https:\/\/vcchome.co.uk\/products\/air-source-heat-pump-antifreeze-valve-automatic","provider":"VCC Home","version":"1.0","type":"link"}