ASME Section VIII Safety Valves — Unfired Pressure Vessel Protection

Why Aquatrol ASME Section VIII Valves

Unfired pressure vessels—air receivers, surge tanks, steam accumulators, and process equipment—store dangerous stored energy. Section VIII mandates certified relief valve protection sized for the vessel’s maximum operating pressure and capacity. Aquatrol’s certified valves carry third-party test documentation proving compliance and protecting your equipment from catastrophic failure.

Section VIII sizing differs from Section I because stored pressure, not continuous generation, defines risk. We size your valve based on vessel volume, operating pressure, and media type (steam, gas, liquid, or corrosive fluid). Our engineers provide pressure/capacity curves and documentation that boiler inspectors and insurance companies require for compliance.

Many unfired vessels have unique requirements—cryogenic storage, high-pressure gas, sanitary food-grade, or heavily corroded environments. Aquatrol manufactures custom Section VIII valves in stainless steel, exotic materials, and specialty configurations. Every valve includes engineering validation and third-party certification proving protection.

Common Applications

• Air receiver tank safety protection
• Steam accumulator and surge tank relief
• Cryogenic liquid storage vessel protection
• Nitrogen and process gas cylinder protection
• Process equipment and heat exchanger relief
• Thermal expansion tank overpressure relief
• Custom pressure vessel safety limiting