1XL

Bronze Self Closing Temperature and Pressure Relief Valve

  • Solid bronze body construction
  • Unique thermostat with special thermo-bonded coating
  • Stainless steel spring
  • ASME rated and CSA listed

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet 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