{"product_id":"reliable-tnl280-k28-1-inch-pendent-tunnel-spray-nozzle","title":"Reliable TNL280 K28 1-Inch Pendent Tunnel Spray Nozzle","description":"\u003cdiv\u003e\n\u003cp\u003eThe Reliable TNL280 is a nonautomatic, open pendent spray nozzle engineered primarily for fixed water spray fire protection systems inside tunnels. Operating as an open nozzle rather than a temperature-activated automatic sprinkler, it delivers water uniformly across the hazard area once the system valve activates. You match the nozzle configuration directly to your engineered water spray system design to achieve the required coverage and density.\u003c\/p\u003e \u003cp\u003eThis component installs in fixed water spray assemblies adhering to NFPA installation standards, satisfying code-mandated design criteria for specialized infrastructure protection. Spray distribution, nozzle height, spacing, flow, and pressure must strictly follow the engineering parameters outlined by the manufacturer.\u003c\/p\u003e \u003ch2\u003eKey Features \u0026amp; Construction\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eOpen Pendent Design:\u003c\/b\u003e Functions as a nonautomatic spray nozzle for pendent installation in fixed water systems.\u003c\/li\u003e \u003cdiv\u003e\u003c\/div\u003e \u003cli\u003e\n\u003cb\u003eHigh-Capacity Hydraulics:\u003c\/b\u003e Features a nominal K-factor of 28.0 (400 metric) to supply high-volume water distribution.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eRobust Alloy Build:\u003c\/b\u003e Utilizes a brass-alloy frame paired with a bronze-alloy deflector and deflector screw retainer for structural integrity.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCorrosion-Resistant Finish:\u003c\/b\u003e Protected by an RASCO500 ceramic coating available in Blackout (black) or Titanium (gray).\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePrecise Installation:\u003c\/b\u003e Installs securely using the Reliable Model W5 wrench applied strictly to the designated nozzle wrench flats.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical Specifications \u0026amp; Compliance Table\u003c\/h2\u003e\n\u003ctable\u003e \u003ctr\u003e \u003cb\u003eManufacturer \/ Brand\u003c\/b\u003e \u003ctd\u003eReliable Sprinkler\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003eModel \/ Series Number \/ SIN\u003c\/b\u003e \u003ctd\u003eTNL280\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003eConnection \/ Thread Size \u0026amp; Type\u003c\/b\u003e \u003ctd\u003e1-inch NPT or ISO 7-1 R1\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003ePressure Rating (WWP \/ Max Working Pressure)\u003c\/b\u003e \u003ctd\u003eMaximum 175 psi (12 bar); Minimum 7 psi (0.48 bar)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003eK-Factor\u003c\/b\u003e \u003ctd\u003e28.0 (400 metric)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003eTemperature Rating \/ Response Type\u003c\/b\u003e \u003ctd\u003eN\/A\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003eMaterial \/ Body Construction\u003c\/b\u003e \u003ctd\u003eBrass-alloy frame, bronze-alloy deflector and retainer\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003eAgency Listings \u0026amp; Approvals\u003c\/b\u003e \u003ctd\u003ecULus Listed (Fixed spray nozzle and corrosion resistant)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003cb\u003eApplicable NFPA Standards\u003c\/b\u003e \u003ctd\u003eNFPA 13 (reference applicable water spray system standards)\u003c\/td\u003e \u003c\/tr\u003e\n\u003c\/table\u003e \u003cp\u003e\u003cstrong\u003eSubmittal \u0026amp; Installation Note:\u003c\/strong\u003e Verify local Authority Having Jurisdiction (AHJ) requirements and confirm required thread standards and finishes before ordering. \u003ca href=\"#\"\u003eRead Reliable Bulletin 099 for the TNL280 pendent spray nozzle\u003c\/a\u003e, including its distribution data, obstruction criteria, and installation requirements.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eDocumentation:\u003c\/strong\u003e \u003ca href=\"#\"\u003eDownload Manufacturer Technical Data \u0026amp; Cut Sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Reliable Sprinkler","offers":[{"title":"1-inch \/ Brass \/ 200F","offer_id":48342610739448,"sku":"TNL280","price":254.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0682\/7183\/3336\/files\/FireSprinkler.png?v=1782216257","url":"https:\/\/fireprotectionparts.net\/es\/products\/reliable-tnl280-k28-1-inch-pendent-tunnel-spray-nozzle","provider":"Fire Protection Parts","version":"1.0","type":"link"}