WATTS® 0358553 374A Boiler Pressure Relief Valve, 3/4 in Nominal, FNPT End Style, 30 psi Pressure, Iron Body, Domestic

WA374AI30 MFG #: 374A-3/4-30
  • Country of Origin: US
  • Domestic/Import: Domestic
  • End Style: FNPT
  • Manufacturer Name: Watts Water Technologies
  • Nominal Size: 3/4 in
  • Series: 374A
This 3/4 in pressure relief valve is used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of a iron body with forged bronze inlet, non-metallic disc-to-metal seating and stainless steel spring. This valve resists corrosive water conditions, sticking and freezing and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and should not be used as an operating control. The pressure setting is 30 PSI for applications up to 550,000 BTU/hr.
  • Features and More


  • Iron body with forged bronze inlet
  • Set pressure at 30 psi
  • 550000 Btu/hr rating


  • Boiler Applications


  • ASME Specified
  • 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.