374A

Boiler Pressure Relief Valves and Flood Sensor

  • Packaged with SentryPlus Alert discharge line flood sensor
  • Iron body with bronze inlet
  • NPTF female bonze inlet and iron outlet connections
  • Above drain seat to prevent sediment from fouling the valve
  • Non-mechanical seat-to-disc alignment will not stick or freeze
  • Test lever
  • Valve is designed for emergency safety relief and shall not be used as an operating control
  • Pressure Range: 30 to 75psi (2 to 5 bar)

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA