Anderson Greenwood

Anderson Greenwood is a long-established brand of pressure relief valves within Emerson’s Final Control portfolio, trusted across the process industries for reliable overpressure protection. With a heritage stretching back to the 1950s, Anderson Greenwood pilot-operated and spring-loaded safety relief valves are engineered to ASME Section VIII requirements and deployed on vessels, pipelines, and closed relief header systems in oil & gas, refining, and petrochemical facilities where minimal emissions and precise set-pressure accuracy are essential. The pilot-operated Series 90/9000 platform offers snap-acting or modulating action with back-pressure balanced design for stable performance even under varying system conditions. As the authorized regional partner, Seven Star LLC supplies genuine Anderson Greenwood relief valves and spare parts to plants across Oman and the GCC, serving critical safety systems in Muscat, Sohar, and Salalah with dependable overpressure protection.

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Anderson Greenwood Series 90/9000 Pressure Relief Valve

Anderson Greenwood

In stock

Frequently Asked Questions

How do Anderson Greenwood pilot-operated valves help minimize emissions?

The pilot-operated design keeps the main valve tightly closed until the exact set pressure is reached, reducing simmer and product loss compared to conventional spring-loaded valves, which helps facilities meet fugitive emissions targets.

Can Anderson Greenwood relief valves be connected to closed flare or vent headers?

Yes, the back-pressure balanced pilot-operated design allows Anderson Greenwood valves to be piped into closed relief header systems without affecting set-pressure accuracy, unlike many conventional spring valves.

Are Anderson Greenwood valves suitable for ASME code-stamped installations?

Yes, Anderson Greenwood pressure relief valves are manufactured to meet ASME Section VIII requirements and carry the ASME UV code stamp for set pressures above 15 psig.

What industrial applications typically use Anderson Greenwood relief valves?

Anderson Greenwood relief valves are widely used on pressure vessels, storage tanks, and pipelines in oil & gas production, refining, and petrochemical processing where reliable overpressure protection is a safety-critical requirement.

Is Seven Star LLC an authorized representative for Anderson Greenwood products?

Yes, Seven Star LLC is the authorized regional partner for Anderson Greenwood in Oman and the GCC, supplying genuine relief valves, spare parts, and technical support for critical plant safety systems.