{"product_id":"22mm-straight-automatic-bypass-valve-abv-auto-boiler-trv-radiator-pressure-50l-p-m","title":"22mm Straight Automatic Bypass Valve ABV Auto Boiler TRV Radiator Pressure (50L p\/m)","description":"\u003cstrong\u003e22mm Straight Automatic Bypass Valve\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eBrand new, premium quality 22mm straight automatic bypass valve, for installation in systems where a boiler bypass is required - typically when a system is equipped with thermostatic radiator vaIves (TRV's), and to allow pump overrun operation after zone valves have closed down. When correctly set, this valve will regulate system pressure, thereby reducing system noise, pump impeller wear and enhance boiler heat exchanger life by ensuring minimum flow rate at all times.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eSpecifications:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eHigh capacity flow up to 50 litres per minute\u003cbr data-mce-fragment=\"1\"\u003eWide differential pressure range 0.1 bar to 0.6 bar\u003cbr data-mce-fragment=\"1\"\u003e22mm Compression fittings\u003cbr data-mce-fragment=\"1\"\u003eReduces system noise\u003cbr data-mce-fragment=\"1\"\u003eMaintains an even system pressure\u003cbr data-mce-fragment=\"1\"\u003eConstant flow through boiler\u003cbr data-mce-fragment=\"1\"\u003eLockable set pressure\u003cbr data-mce-fragment=\"1\"\u003eArrives boxed\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInstallation:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eInstallation should be in a loop between flow and return after the pump. Ensure that the flow is in the direction of the arrow on the valve body. Rotate the adjustment head until the required setting number is visible, and lock the valve at that point by tightening the screw on top of the adjuster. Refer to recommendations in the boiler instructions and the pressure \/flow rates detailed in the above product images to see which setting is required. \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThis valve should be fitted where a boiler bypass is required. Typically this is the case when a system is equipped with thermostatic radiator vaIves (TRV's), and to allow pump overrun operation after zone valves have closed down. TRV's slowly close down as each radiator raises the room temperature. To overcome flow restriction as TRV's close down, the valve is adjusted to the required set point. As the system resistance increases due to TRV's closing, the valve allows flow to Increase in order to maintain the required pre-set system differential pressure . The regulation provided will reduce system noise that can result from TRV's or zone valves closing, eliminate pump impeller wear that can result from high flow resistance and enhance the life of the boiler's heat exchanger by ensuring minimum flow rate at all times.","brand":"SPARES2GO","offers":[{"title":"Default Title","offer_id":45198800683250,"sku":"ABBV1ST","price":15.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0322\/4263\/0701\/files\/ABBV1ST_a.jpg?v=1707481684","url":"https:\/\/spires2go.com\/products\/22mm-straight-automatic-bypass-valve-abv-auto-boiler-trv-radiator-pressure-50l-p-m","provider":"SPARES2GO","version":"1.0","type":"link"}