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Apollo 160 lb bronze relief valve – 1‑1/4″ FNPT safety valve, bronze body with lever actuator, preset 160 psi at 250 °F for hot water systems.
The Apollo 160 lb bronze relief valve model 10‑616‑10 (also marked 1061610) is a top-tier safety device engineered for hot water heating and boiler systems. Featuring a 1‑1/4″ inlet and 1‑1/2″ outlet FNPT configuration, it safeguards against overpressure in hydronic systems and hot water applications. Preset at 160 psi, this relief valve opens automatically to protect equipment and piping from unsafe pressure buildup.
Built on the trusted 10-600 Series, this valve comes with an ASME Section IV certification, ensuring reliable and compliant operation across a pressure adjustment range of 15 to 160 psi. The bronze body, internal spring cage, and corrosion-resistant trim deliver long-term durability, making it ideal for industrial and residential hot water systems.
Constructed for high discharge capacity, the valve features an oversize outlet and diaphragm-isolated spring chamber, minimizing outlet flooding and extending service life.
Bronze body and trim for corrosion resistance
Preset at 160 psi, adjustable between 15–160 psi
Rated for temperatures up to 250 °F
1‑1/4″ FNPT inlet × 1‑1/2″ FNPT outlet
Lever lift actuator for manual testing and release
Discharge dimensions: ~8.4″ tall × 5.1″ wide
This valve is essential in:
Water heating systems and boilers
Hydronic piping circuits
Solar thermal systems
Industrial process vessels
Any closed-loop hot water system requiring high-capacity overpressure protection
Its bronze construction ensures compatibility with potable water applications, while the lever actuator simplifies testing and maintenance.
Install vertically atop the system relief point.
Check valve orientation with flow arrow or handle direction.
Utilize proper sealants like PTFE tape on FNPT threads.
Test periodically using the lever to ensure compliance.
ASME code allows adjustment within specified range.
