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Safety Relief Valve: Bronze, 1 in Inlet Size, NPT, 150 psi Factory Set Pressure, 4 in Overall Lg, 8 1/2 in Overall Ht

Item # 663A029

$269.86 Each

Product Specs

Body Material: Bronze
Inlet Size: 1 in
Inlet Type: NPT
Factory Set Pressure: 150 psi
Overall Length: 4 in
Overall Height: 8 1⁄2 in
Maximum Operating Pressure: 300 psi
Maximum Operating Temperature: 406 ° F
Seat Material: Viton
Test Lever: Yes
Application: Steam Boilers; Generators; Reciprocating Air Compressor; Stationary Gas Compressor; Pressure Reducing Stations
Coefficient of Volume: 0.9
Disc Material: Brass B21 Alloy 485
Display Sell UOM: EA
Features: Full Nozzle Design; Heavy Duty Lift Lever Assembly; Heavy Duty Casting; O-Ring Seats for Exceptional Leak Free Performance; Reduce Maintenance Cost; Improve Seating Integrity
Inlet Gender: Male
Maximum Fluid Temperature: 406 ° F
Minimum Fluid Temperature: -60 ° F
Minimum Operating Pressure: 3 psig
Minimum Operating Temperature: -60 ° F
Outlet Gender: Female
Outlet Size: 1 1⁄4 in
Outlet Type: NPT
Relief Valve Type: Safety Relief Valve
Specifications Met: ASTM A-313 TY 631; Tiol Board Certified; AMSE VIII; UV Nation Board Certified
Spring Material: Stainless Steel

Compliance and Restrictions

Country Of Origin

  • USA
  • This product is not intended for potable water applications (human consumption – drinking and cooking) and has not been designed to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable water applications. This item is for use only in non-potable (non-human consumption) water applications.
  • This item is restricted for conveying or dispensing water for potable use (human consumption).

About Safety Relief Valves

Help prevent damage to boilers and pressure vessels from excess pressure in liquid and vapor systems. These safety valves automatically vent the system when the pressure reaches a preset value.

These valves are preset and sealed at the factory to resist tampering.