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Watts 1/2 IN Male NPT x Female NPT Fire Protection Pressure Relief Valve

SKU: 0190915

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Product Details

Watts 0190915

This 1/2'', 175 psi pressure relief valve is designed to relieve thermal expansion in fire protection systems. It features a lever for flushing and draining the system and a second lever to lock the valve closed for hydrostatic testing of the system. This relief valve is FM and UL listed.


  • UPC 098268192728
  • Online Product ID 10280767
  • Material Bronze
  • Prop65 Warning Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Buy American Act Compliant yes
  • Entry Style Single Top
  • Inlet Connection Size 0.5''
  • Inlet Connection Type Male Threaded
  • Inlet Thread Type NPT
  • Maximum Temperature Deg F 210
  • Maximum Working Pressure Psi 175
  • Outlet Connection Size 0.5''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 175
  • Pressure Relief Setting Psi 175
  • Protection Type Pressure
  • Series FP53L-M1
  • Shank Length 0.1''

Additional information

  • FM and UL listed
  • 1/2'' female NPT outlet connection
  • 1/2'' male NPT inlet connection
  • 175 psi set pressure

About This Brand

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