3/4" Pressure Relief Valve, 30 PSI

Cash Acme® F-30 3/4" Pressure Relief Valve – ASME-Certified Safety for Hot Water Systems

The Cash Acme® F-30 Pressure Relief Valve is engineered for hot water service in commercial and residential systems, including space heating boilers, water heaters, and storage tanks. It provides essential overpressure protection, helping to prevent system damage or failure due to pressure buildup.

This factory-calibrated valve is set at 30 PSI and certified by the ASME, with National Board listing, making it suitable for code-compliant installations across a wide range of hydronic and domestic water applications.

Product Highlights

• Relief Pressure: Factory preset at 30 PSI – ideal for closed-loop hot water systems
• ASME Certified: Listed by the National Board for safety and compliance with applicable standards
• Rugged Brass Body: Corrosion-resistant design offers long-term reliability and durability
• Compact Form Factor: Allows for installation in tight mechanical spaces or retrofit situations
• Performance Tested: Each unit is tested prior to shipment to ensure reliable operation under pressure

Specifications

• Valve Type: Hot Water Pressure Relief Valve
• Inlet Size: 3/4” NPT
• Pressure Setting: 30 PSI
• Body Material: Brass
• Certifications: ASME Section IV, National Board Listed

Installation and Use Considerations

Install the valve in accordance with the appliance manufacturer’s specifications and applicable plumbing and mechanical codes. Vertical installation is typical, with the discharge outlet directed downward. Discharge piping should be installed per code to safely direct flow in the event of relief.

While straightforward, pressure relief valve installation should be performed by qualified professionals to ensure proper system sizing, pressure compatibility, and safe discharge routing.

Ideal Applications

• Water Supply Heaters
• Hot Water Boilers
• Storage Tanks in Hydronic Systems