{"product_id":"sprd-static-pressure-regulating-mechanical-bypass-damper","title":"SPRD– Static Pressure Regulating Mechanical Bypass Damper","description":"\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eTechnical Document\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Static Pressure Regulating Dampers, Model SPRD, are barometric relief dampers used to by-pass excess air pressure on zoned systems. The SPRDs automatically respond to the air pressure in duct as the various zone dampers open and close.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAs zone dampers close off air to a number of zones, the supply air pressure in the duct system will increase. This increase in air pressure can increase the noise level and reduce the flow of conditioned air through the HVAC Unit. Using the SPRD solves this by automatically compensating for the excess air pressure by opening on the increased pressure and relieving the excess air. The SPRD helps maintain a constant air pressure in the duct system. This reduces noise that is caused by high air pressures and velocities, as well as maintains a constant volume of air (CFM) through the duct system. Maintaining a constant volume of air through the HVAC System keeps the efficiency of the system at its maximum.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe SPRD is available in square\/rectangular and round sizes. The chart below lists the available sizes of SPRDs and their recommended CFM capacities\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBypass Damper Size (diameter in Inch)\u003c\/td\u003e\n\u003ctd\u003eMaximum Allowable Flow through Bypass (CFM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e1600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e2400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e3000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e3600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 x 8\u003c\/td\u003e\n\u003ctd\u003e800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 x 10\u003c\/td\u003e\n\u003ctd\u003e1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 x 12\u003c\/td\u003e\n\u003ctd\u003e1400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 x 8\u003c\/td\u003e\n\u003ctd\u003e1600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 x 10\u003c\/td\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 x 12\u003c\/td\u003e\n\u003ctd\u003e2400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/SPRD-2020FCA.pdf?v=1674869870\" target=\"_blank\" title=\"manual\" rel=\"noopener noreferrer\"\u003e\u003cimg alt=\"Manual\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/3_962c143d-be16-4728-95d1-009109e43a36.png?v=1647307385\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hydro Solar Innovative Energy","offers":[{"title":"8","offer_id":44865237188854,"sku":"50080201","price":140.88,"currency_code":"USD","in_stock":true},{"title":"9","offer_id":44865242202358,"sku":"50080202","price":146.1,"currency_code":"USD","in_stock":true},{"title":"10","offer_id":44865237221622,"sku":"50080203","price":153.92,"currency_code":"USD","in_stock":true},{"title":"12","offer_id":44865237254390,"sku":"50080204","price":157.4,"currency_code":"USD","in_stock":true},{"title":"14","offer_id":44865237287158,"sku":"50080205","price":166.97,"currency_code":"USD","in_stock":true},{"title":"16","offer_id":44865237319926,"sku":"50080206","price":189.58,"currency_code":"USD","in_stock":true},{"title":"18","offer_id":44865242235126,"sku":"50080207","price":208.71,"currency_code":"USD","in_stock":true},{"title":"20","offer_id":44865242267894,"sku":"50080208","price":241.76,"currency_code":"USD","in_stock":true},{"title":"12 x 8","offer_id":44865242300662,"sku":"50080101","price":156.54,"currency_code":"USD","in_stock":true},{"title":"12 x 10","offer_id":44865242333430,"sku":"50080102","price":166.1,"currency_code":"USD","in_stock":true},{"title":"12 x 12","offer_id":44865242366198,"sku":"50080103","price":176.53,"currency_code":"USD","in_stock":true},{"title":"20 x 8","offer_id":44865244594422,"sku":"50080104","price":173.93,"currency_code":"USD","in_stock":true},{"title":"20 x 10","offer_id":44865244627190,"sku":"50080105","price":178.28,"currency_code":"USD","in_stock":true},{"title":"20 x 12","offer_id":44865244659958,"sku":"50080106","price":184.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/products\/sprd-static-pressure-regulating-mechanical-bypass-damper-38550437986550.png?v=1674870531","url":"https:\/\/hydrosolar.ca\/en-us\/products\/sprd-static-pressure-regulating-mechanical-bypass-damper","provider":"Hydro Solar Innovative Energy","version":"1.0","type":"link"}