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WATTS®
WATTS® 0278328 174A Pressure Relief Valve, 2 in Nominal, FNPT End Style, 50 psi Pressure, Bronze Body
Superseded

Superseder Products

WATTS®: F278328

WATTS®

WATTS® 0278328 174A Pressure Relief Valve, 2 in Nominal, FNPT End Style, 50 psi Pressure, Bronze Body

BrandWATTS®
MFR Part No0278328
TSCO Part Number429847

Warranty Length

  • Limited

Features

  • Bronze body safety relief valves for pressure protection only of all types of hot water heating boiler equipment
  • Seat located above drain water can't be trapped and sediment can't foul seat
  • Non-mechanical seat-to-disc alignment will not stick or freeze
  • Water seal of high temperature resisting material isolates spring working parts from water during relief
  • Nonmetallic disc-to-metal seating
  • The discharge line must be the same size as the valve outlet, and must pitch downward from the valve to a safe place for disposal
  • Valve lever must be tripped at least once a year to ensure that waterways are clear, this device is designed for emergency safety relief and shall not be used as an operating control

Standard Approvals

  • ASME Section IV
  • MIL-V-18634B
  • PROP65: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm.