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FP53L Watts

Pressure Relief Valves for Fire Protection Applications with Test Lever

Series FP53L Pressure Relief Valves for Fire Protection Applications are designed for use in fire protection grid systems to provide protection against excessive water pressure caused by thermal expansion or line surge. They have a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, and test lever. Series FP53L is UL listed and has a standard 175psi (12.25 bar) pressure relief setting.

Features

  • Bronze body construction for superior strength and corrosion resistance
  • Valve protects fire protection grid systems from excessive water pressure caused by thermal expansion or line surge
  • Valve stem is guided to ensure proper reseating
  • Manual test lever for periodic testing and flushing of waterways and seating surfaces

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific FP53L