{"product_id":"reliable-model-g-grooved-swing-check-valve-half-inch-ports","title":"Reliable Model G Grooved Swing Check Valve with ½-Inch Ports","description":"\u003cdiv\u003e\n\u003cp\u003eThe Reliable Model G grooved swing check valve controls one-way water flow within commercial fire protection assemblies. It integrates into piping networks to prevent reverse flow, utilizing a spring-loaded, non-slamming clapper design that minimizes destructive water hammer events. This component operates reliably in either horizontal installations with the hinge pin positioned at the top or vertical installations featuring upward flow direction.\u003c\/p\u003e \u003cp\u003eEngineered to satisfy commercial life safety requirements under relevant NFPA standards for fire suppression and sprinkler systems, this valve ensures code-compliant backflow prevention. Contractors must verify AHJ compliance and match exact nominal or metric ordering configurations—including the 76 mm (76CK), 2½-inch\/65 mm (25CKR), or 165 mm (165CK) versions—to the existing pipe schedule prior to mechanical grooved coupling installation.\u003c\/p\u003e \u003ch2\u003eKey Features \u0026amp; Construction\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDurable Body Construction:\u003c\/strong\u003e Gray-cast-iron body provides rigid structural strength for industrial fire protection environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Internals:\u003c\/strong\u003e Features a bronze seat, stainless-steel clapper, and EPDM facing seal for secure, long-lasting fluid isolation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWater Hammer Mitigation:\u003c\/strong\u003e Spring-loaded non-slamming clapper design protects system piping from pressure surges.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAuxiliary Port Connections:\u003c\/strong\u003e Incorporates ½-inch NPT supply-side and discharge-side connections as specified in Bulletin 807.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFlexible Orientation:\u003c\/strong\u003e Installs horizontally with the hinge pin at the top or vertically with upward flow.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003e\u003cstrong\u003eSpecification Field\u003c\/strong\u003e\u003c\/th\u003e \u003cth\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eManufacturer \/ Brand\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eReliable Sprinkler\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eModel \/ Series Number \/ SIN\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eModel G (Ordering References: 76CK, 25CKR, 165CK)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eConnection \/ Thread Size \u0026amp; Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eGrooved (Main); ½-inch NPT (Supply and Discharge Ports)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMaterial \/ Body Construction\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eGray-Cast-Iron Body, Bronze Seat, Stainless-Steel Clapper, EPDM Facing Seal\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e\n\u003c\/table\u003e \u003cp\u003eContractors must confirm all local Authority Having Jurisdiction (AHJ) mandates and consult the manufacturer technical data sheets for complete pressure ratings and installation guidelines. \u003cstrong\u003eDocumentation:\u003c\/strong\u003e \u003ca href=\"#\"\u003eDownload Reliable Model G manufacturer specifications, Bulletin 807 (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Reliable Sprinkler","offers":[{"title":"2.5\"","offer_id":48502674161912,"sku":"25CKR","price":308.99,"currency_code":"USD","in_stock":true},{"title":"3\"","offer_id":48502674129144,"sku":"76CK","price":308.99,"currency_code":"USD","in_stock":true},{"title":"6\"","offer_id":48502674194680,"sku":"165CK","price":745.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/7183\/3336\/files\/fire-protection-grooved-swing-check-valve-12-drain-reliable-3297797.webp?v=1779725877","url":"https:\/\/fireprotectionparts.net\/products\/reliable-model-g-grooved-swing-check-valve-half-inch-ports","provider":"Fire Protection Parts","version":"1.0","type":"link"}