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Bronze safety relief valve with test lever, 1-1/2 inch FNPT connections

Apollo

Apollo 1060710 Safety Relief Valve 1-1/2 in 50 psi Bronze

SKU CH-S838-RZRA9 MPN 1060710

Bronze safety relief valve with 1-1/2 in FNPT connections, factory set at 50 psi for heating systems up to 250 °F

  • TypeDrain Components
  • Protects heating systems with 50 psi factory-set pressure
  • Handles up to 604,000 BtuH for high-capacity applications
  • Operates reliably from 0 to 250 °F
  • Bronze body with silicone seat resists corrosion
  • Adjustable 15–160 psi range suits varied installations

Bronze Safety Relief Valve

This bronze safety relief valve protects heating systems from over-pressure conditions. It features a 1-1/2 inch FNPT inlet and outlet with a factory-set pressure of 50 psig. The valve operates within a pressure range of 15 to 160 psi and a temperature range of 0 to 250 degrees Fahrenheit. A test lever is included for manual operation checks.

Heating System Protection

This valve suits installers and maintenance staff fitting or servicing hydronic heating equipment requiring ASME Section IV capacity. It is not for buyers needing protection for potable water systems, steam service, or applications exceeding the stated pressure and temperature limits.

Factory-Set 50 psig Relief Pressure

The valve opens at a factory-set pressure of 50 psig, a fixed value that determines if it matches the system design pressure. Verify the heating boiler nameplate rating against this set pressure before purchase.

Highlights

  • Protects heating systems with 50 psi factory-set pressure
  • Handles up to 604,000 BtuH for high-capacity applications
  • Operates reliably from 0 to 250 °F
  • Bronze body with silicone seat resists corrosion
  • Adjustable 15–160 psi range suits varied installations

Specifications

TypeDrain Components
BrandApollo
Model1060710

Questions about this item

How do I install the 1-1/2 in FNPT inlet and outlet on my heating system, and what step is often missed?

Thread the valve into the 1-1/2 in FNPT connections using pipe sealant rated for 250 °F; the step often missed is verifying the flow arrow points toward the discharge side before tightening.

What maintenance or replacement will the brass disc and silicone seat need over time?

Inspect the brass disc and silicone seat annually for corrosion or hardening; replace the disc if pitting appears or the seat if it no longer seals at the 50 psig set pressure.

At what point does the 4,604,000 BtuH capacity limit performance during sustained heating demand?

The valve reaches its flow limit at 4,604,000 BtuH; sustained demand above that pressure will keep the disc open continuously, preventing pressure from dropping below the 50 psig set point.

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