{"product_id":"4alf-505-02f-1in-pvb-ball-valves-sae-test-cock","title":"Zurn  1 in. PVB Pressure Vacuum Breaker - Bronze, Lead-Free - 4ALF505A2F","description":"\u003ch2\u003eZurn  1 in. PVB Pressure Vacuum Breaker - Bronze, Lead-Free - 4ALF505A2F\u003c\/h2\u003e\n\u003cp\u003eReliable 1 in. pressure vacuum breaker (PVB) engineered for potable water protection in irrigation and light commercial systems. The bronze, lead-free assembly combines durable construction with serviceable internals for seasonal maintenance and long service life.\u003c\/p\u003e\n\u003cp\u003eThis model is intended for vertical installation with inlet at the bottom and requires clearance for access to test cocks and shutoff valves. It is listed to recognized potable‑water standards (see manufacturer datasheet for full approvals and sizing) and is commonly used by contractors for irrigation, landscape, and light commercial backflow protection. For code compliance, installation and testing should be carried out by a licensed plumber or certified backflow technician; refer to the product submittal sheet for dimensions, weight, and required clearances.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBronze lead‑free body:\u003c\/strong\u003e corrosion‑resistant bronze construction with lead‑free components for potable water applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion\/ball valve shutoffs:\u003c\/strong\u003e integrated union‑end ball valves with stainless steel handles and nuts for positive shutoff and easy isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAE threaded test cocks:\u003c\/strong\u003e standard SAE\/NPT test cocks and threaded protectors for convenient testing and draining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceable cartridge:\u003c\/strong\u003e top‑access modular cartridge with replaceable seats and captured springs for fast field service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability and protection:\u003c\/strong\u003e built‑in freeze‑resistant relief valve, low pressure loss design, and corrosion‑resistant components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance ratings:\u003c\/strong\u003e nominal 1 in. size, 150 PSI working pressure and an operating range suitable for common irrigation temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer support:\u003c\/strong\u003e compatible repair kits and a 5‑year limited warranty from the manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eReliable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1-inch lead-free Pressure Vacuum Breaker (PVB)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designed to prevent backsiphonage in irrigation systems.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eLead-free bronze construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e offers excellent durability, corrosion resistance, and potable water compliance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eIdeal for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eresidential and light commercial sprinkler and landscape irrigation systems\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eProvides dependable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebackflow protection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for high-hazard, non-potable water applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEngineered for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eeasy testing and maintenance\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with accessible test cocks and shut-off valves.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact, proven design simplifies installation while delivering long-lasting performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMeets key \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eindustry standards for safety and code compliance\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making it a trusted choice for professional installations.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eA dependable solution for homeowners and contractors seeking \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edurable, low-maintenance irrigation backflow protection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"0\" data-end=\"299\"\u003e\u003cstrong data-start=\"0\" data-end=\"71\"\u003eQ: What is the Zurn 1 in. PVB Pressure Vacuum Breaker (4ALF505A2F)?\u003c\/strong\u003e\u003cbr data-start=\"71\" data-end=\"74\"\u003eA: A 1-inch lead-free bronze pressure vacuum breaker (PVB) designed to protect potable water systems from backsiphonage in irrigation and other high-hazard non-potable water applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"301\" data-end=\"535\"\u003e\u003cstrong data-start=\"301\" data-end=\"346\"\u003eQ: Where is the 4ALF505A2F commonly used?\u003c\/strong\u003e\u003cbr data-start=\"346\" data-end=\"349\"\u003eA: It is ideal for residential and commercial irrigation systems, landscape watering, and other applications requiring reliable backflow prevention. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"537\" data-end=\"851\"\u003e\u003cstrong data-start=\"537\" data-end=\"570\"\u003eQ: What are its key features?\u003c\/strong\u003e\u003cbr data-start=\"570\" data-end=\"573\"\u003eA: Lead-free bronze body, modular replaceable check valve cartridge, built-in freeze-resistant relief valve, stainless steel ball valve handles, corrosion-resistant construction, and SAE threaded test cocks for easy testing and maintenance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"853\" data-end=\"1066\"\u003e\u003cstrong data-start=\"853\" data-end=\"898\"\u003eQ: What are the operating specifications?\u003c\/strong\u003e\u003cbr data-start=\"898\" data-end=\"901\"\u003eA: It features 1\" FNPT connections, a maximum working pressure of 150 PSI, and an operating temperature range of 33°F to 140°F. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eInspect regularly for leaks, corrosion, and visible damage.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTest the pressure vacuum breaker annually to ensure proper backflow protection.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDrain and winterize before freezing temperatures to prevent freeze damage.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eKeep air vents and valve components clean and free of debris.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplace worn seals and internal parts with compatible replacement kits as needed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnsure the assembly remains accessible for routine inspection, testing, and maintenance.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zurn","offers":[{"title":"Default Title","offer_id":45805515505855,"sku":"4ALF505A2F","price":354.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/4ALF505A2F-2_41d2e57d-6024-4c2c-a1d2-e2db104e0990.jpg?v=1782958373","url":"https:\/\/www.mybackyardzone.com\/products\/4alf-505-02f-1in-pvb-ball-valves-sae-test-cock","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}