{"product_id":"viking-vk458-k7-4-residential-pendent-fire-sprinkler-with-torque-assist","title":"Viking VK458 K7.4 Residential Pendent Fire Sprinkler with Torque-Assist.","description":"\u003cdiv\u003e\n\u003cp\u003eThe Viking VK458 K7.4 Residential Pendent Fire Sprinkler is engineered for reliable, fast-response fire suppression in modern residential environments. Designed for pendent ceiling installations in wet pipe fire sprinkler systems, this component ensures efficient water distribution directly below the unit while maintaining a low-profile aesthetic for new construction or retrofitting projects.\u003c\/p\u003e \u003cp\u003eThis sprinkler satisfies critical life safety design parameters governed by NFPA 13 standards for residential occupancies. Its thermal activation mechanism and hydraulic discharge characteristics comply with stringent fire protection codes to ensure rapid control of residential fires.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTorque-Assist Technology:\u003c\/strong\u003e Reduces installation effort, allowing the sprinkler to seat securely on the first attempt for a leak-free seal without wrenches or thread sealants when paired with compatible InstaSeal fittings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eK-Factor Performance:\u003c\/strong\u003e Features a 7.4 K-factor that delivers a balanced water flow rate, optimizing available water supplies for hydraulically designed systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermosensitive Glass Bulb:\u003c\/strong\u003e Utilizes a 3mm heat-sensitive liquid-filled bulb designed to expand and shatter at a precise temperature rating for quick activation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Coatings:\u003c\/strong\u003e Available with specialized finishes, including UL-Listed Electroless Nickel PTFE (ENT) coating, to withstand humidity and moisture-prone areas like basements and bathrooms.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact Pendent Profile:\u003c\/strong\u003e Low-profile design disperses water effectively while blending into residential ceilings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003e\u003cstrong\u003eTechnical Specification\u003c\/strong\u003e\u003c\/th\u003e \u003cth\u003e\u003cstrong\u003eDetails\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\u003eViking\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eModel \/ Series Number \/ SIN\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eVK458\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eConnection \/ Thread Size \u0026amp; Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e3\/4-inch NPT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePressure Rating (WWP \/ Max Working Pressure)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e175 psi (12 bar)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eK-Factor\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e7.4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eTemperature Rating \/ Response Type\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eFast Response (3mm Glass Bulb)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMaterial \/ Body Construction\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eHigh-quality metals with optional ENT coating\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eAgency Listings \u0026amp; Approvals\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eUL Listed (ENT Corrosion Resistance)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eApplicable NFPA Standards\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eNFPA 13\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e\n\u003c\/table\u003e \u003cp\u003eAlways verify specific installation parameters with your local Authority Having Jurisdiction (AHJ) and review the manufacturer technical cut sheets prior to starting work.\u003c\/p\u003e \n\u003cp\u003e\u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.vikinggroupinc.com\/sites\/default\/files\/2025-08\/042005_0.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManufacturer Technical Data (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Fire Protection Parts","offers":[{"title":"Brass \/ 155 °F (68 °C)","offer_id":68031335170138,"sku":"13230AB-TQ","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Brass \/ 175 °F (79 °C)","offer_id":68031335202906,"sku":"13230AD-TQ","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Chrome \/ 155 °F (68 °C)","offer_id":68031335235674,"sku":"13230FB-TQ","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Chrome \/ 175 °F (79 °C)","offer_id":68031335268442,"sku":"13230FD-TQ","price":22.99,"currency_code":"USD","in_stock":true},{"title":"White-Polyester \/ 155 °F (68 °C)","offer_id":68031335301210,"sku":"13230MB\/W-TQ","price":22.99,"currency_code":"USD","in_stock":true},{"title":"White-Polyester \/ 175 °F (79 °C)","offer_id":68031335333978,"sku":"13230MD\/W-TQ","price":22.99,"currency_code":"USD","in_stock":true},{"title":"ENT \/ 155 °F (68 °C)","offer_id":68031335366746,"sku":"13230JNB-TQ","price":59.99,"currency_code":"USD","in_stock":true},{"title":"ENT \/ 175 °F (79 °C)","offer_id":68031335399514,"sku":"13230JND-TQ","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/0637\/7818\/files\/viking-vk458-k74-residential-pendent-fire-sprinkler-2221783_b52de36e-58aa-4a5d-9965-29c44d430369.webp?v=1794374617","url":"https:\/\/patriotsafesource.com\/products\/viking-vk458-k7-4-residential-pendent-fire-sprinkler-with-torque-assist","provider":"Patriot SafeSource","version":"1.0","type":"link"}