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Fire Sprinkler Head Pendent Spray - FM Approved & UL Listed 1/2" NPT 155℉(68℃) K=5.6 (K80/metric) Standard Response for Automatic Fire Sprinkler System (6, Chrome)

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Product details

Management number 208321598 Release Date 2026/03/22 List Price $22.00 Model Number 208321598
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Product Description:This automatic pendent fire sprinkler head is designed for effective fire protection in residential, commercial, and light industrial environments. With a 1/2" NPT American thread, a 5.6 K-Factor, and a standard response glass bulb, it ensures reliable activation and water distribution when it matters most.Technical Specifications:Installation Orientation Classification:PendentTemperature Rating: 155℉(68℃)Maximum Operating Temperature: 100℉(38℃)Thermal Response Classification:Standard responseDischarge Coefficient: K=5.6(U.S) /80(Metric)Nominal Orifice Size: NPT 1/2"(15mm)Maximum Working Pressure:175psi(12bar)Min. Operating Pressure: 7psi (0.48bar)Factory Hydrostatic Test: 100%@ 500psi (34.5bar)

  • 🔥 Standard Response Activation – 5mm frangible glass bulb activates at 155℉ (68℃) for dependable fire suppression.
  • 🔧 1/2" NPT Thread Connection – Compatible with American standard piping systems for easy installation.
  • ✅ Certified Safety – FM Approved (3053441) and UL / CUL Listed (EX6430) for compliance and peace of mind.
  • 💦 High Performance – Max working pressure of 175 psi (1.2 MPa); factory hydrostatic tested at 500 psi (3.4 MPa).
  • 🛠 Durable Design – Precision-built for long-term reliability in automatic fire sprinkler systems.
Brand TUNA
Material Metal
Item Weight 14.4 ounces
Manufacturer TUNA
Exterior Finish Chrome
Number of Ports 2
Item model number SR-NX025
Specification Met FM, UL
Product Dimensions 1.3 x 1.3 x 2 inches
Item dimensions L x W x H 1.3 x 1.3 x 2 inches
Maximum Operating Pressure 175 Pound per Square Inch

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