{"product_id":"cash-acme-22398lf-vacuum-relief-3-4-inch-npt-lead-free-brass","title":"Cash Acme 22398LF Vacuum Relief 3\/4 Inch NPT Lead Free Brass","description":"The VR-801 vacuum relief valve is designed to protect hot water supply systems and pressure vessels against negative pressure. It is especially well suited for many domestic and commercial systems. It works by preventing internal vacuum conditions that could result in burned out heaters and\/or collapsed storage tanks. Installed on the cold water supply line, the Cash Acme VR-801 closes tightly under pressure and opens at a 1 in mercury vacuum. Atmosphere admitted to the system breaks the vacuum, preventing collapse of the storage tank.\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDrilled vent with dust cover\u003c\/li\u003e\n\u003cli\u003ePrevents internal vacuum conditions-guards against siphonage, burnt-out heaters and collapsing of storage tanks and negative pressure\u003c\/li\u003e\n\u003cli\u003eOpens quickly in emergency situations on a one in mercury vacuum\u003c\/li\u003e\n\u003cli\u003eEvery valve is tested for performance prior to shipping\u003c\/li\u003e\n\u003cli\u003eWater service\u003c\/li\u003e\n\u003cli\u003e1 in Hg vacuum relief pressure open\u003c\/li\u003e\n\u003cli\u003eBrass body cap and internal parts\u003c\/li\u003e\n\u003cli\u003eStainless steel spring\u003c\/li\u003e\n\u003cli\u003ePolypropylene dust cover\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cash Acme","offers":[{"title":"Default Title","offer_id":43931678605363,"sku":"CASVR20","price":29.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5964\/8563\/files\/22398lf-3.jpg?v=1771871829","url":"https:\/\/plumbing-deals.com\/products\/cash-acme-22398lf-vacuum-relief-3-4-inch-npt-lead-free-brass","provider":"Plumbing Deals","version":"1.0","type":"link"}