3/4" Brass Automatic Reseating Temperature and Pressure Relief Valve, Male x Female

$273.74
- +
In stock
0 Available At My Branch
8 Available At All US Supply Locations
Brand
WATTS
Part Number
556016
SKU
1948710

Watts 3/4" Automatic Reseating T&P Relief Valve – Dependable Overpressure Protection

Engineered for hot water storage tanks and water heaters, the Watts 3/4" Automatic Reseating Temperature and Pressure Relief Valve is built to safeguard closed water heating systems from excess pressure or temperature. This valve provides reliable overpressure discharge while automatically reseating once normal operating conditions are restored—eliminating the need for manual reset or replacement in most events.

Its construction from lead-free copper silicon alloy meets stringent potable water standards, and its precision thermostat ensures accurate operation when critical thresholds are exceeded. Designed for both residential and commercial systems, this T&P relief valve combines safety, code compliance, and long-term performance.

Product Advantages

  • Lead-Free Alloy Body – Complies with NSF 372 and meets national drinking water safety regulations.
  • Automatic Reseating – Ensures reliable discharge without sacrificing valve integrity, reducing service callbacks.
  • 210°F Temperature Relief – Protects against thermal overload conditions common in domestic water systems.
  • 150 PSI Pressure Relief Setting – Suitable for standard hot water systems and storage tank applications.
  • Tamper-Resistant Bonnet – Helps maintain factory calibration and discourages unauthorized adjustment.
  • Compact Profile – Streamlined design fits tight clearances near tank outlets or pipe manifolds.

Technical Specifications

  • Inlet Size: 3/4" NPT Male
  • Discharge Orientation: Downward, for gravity drainage
  • Body Material: Lead-Free Copper Silicon Alloy
  • Relief Pressure: 150 PSI
  • Temperature Activation: 210°F
  • Overall Dimensions: Approx. 2-5/8" W x 5-5/8" H

Installation Notes

Install vertically on the tank’s top outlet or designated relief port with the discharge tube piped to an approved drain. Proper orientation and sizing of the drain line are critical to ensure full flow and avoid backpressure. Though the process is straightforward, professional installation is recommended to confirm code compliance and safety performance, especially in commercial or multi-unit settings.

Professional Considerations

Contractor Benefits: This valve is factory-calibrated for consistent operation and built to meet ASME and CSA requirements. Its reseating function reduces maintenance calls, while the durable alloy body stands up to harsh conditions in mechanical rooms and service areas.

Installer Tips: Ensure valve threads are clean and properly sealed during installation. Always test the valve function after system commissioning, and inspect annually as part of routine water heater maintenance.

Summary

Backed by decades of field performance, the Watts 3/4" Automatic Reseating Temperature and Pressure Relief Valve is a critical safety component for any hot water system. Whether you're specifying a new installation or replacing an older model, this valve delivers trusted protection with the added benefit of automatic reseating for reduced service disruption. Install with confidence—Watts sets the standard in system safety.

Specifications

Specifications
Weight 1.500000
Height 2.5
Length 11.45
Width 3
Recommended 2912
Brand WATTS
Manufacturer Part Number 556016
Sub Type Relief Valve
Body Material Lead Free Copper Silicon Alloy
End Style FNPT
Nominal Size 3/4 in
Pressure Rating 112 PSI
Item Returns This item can be returned
Features