Heavy Duty Bronze Safety Relief Valve For Hot Water Systems With 30 Psi Set Pressure, Three Quarter Inch NPT Female Inlet, ASME Compliant, 10-400 Series, ASTM B584 Bronze Body, Stainless Steel Spring, Max 250 F, Apollo Valve

Heavy-Duty Bronze Safety Relief Valve for Hot Water - Single
✔️ 30 psi relief, 3/4 in NPT inlet/outlet, ASME IV, 250°F

This heavy-duty bronze safety relief valve is designed for hot water systems and boilers in residential and commercial settings. It relieves excess pressure to protect piping and equipment, and is built to endure high temperatures up to 250°F. The 10-400 series uses ASTM B584 bronze for the body and nozzle, a stainless steel spring, and an EPDM seat for long life and reliability.

✅ 30 psi relief pressure preset for releasing excess pressure
✅ 3/4" NPT inlet and 3/4" NPT outlet connections for standard plumbing
✅ ASTM B584 bronze body and nozzle with stainless steel spring for corrosion resistance
✅ EPDM seat for ozone resistance and durable sealing
✅ Max operating temperature 250°F; ASME Section IV rated for hot water systems

💡 What is a safety relief valve used for in hot water systems and how does it work in residential and commercial installations?

- It opens to vent excess pressure at the preset limit and reseats when pressure drops.
- It protects boilers, water heaters, and hydronic loops from overpressure.
- Bronze body, EPDM seat, and stainless steel spring resist corrosion and heat.
- Proper sizing and ASME Section IV rating ensure safe operation in hot water systems.