Mercer Valve Company, Inc. provides high quality pressure relief valves. The Mercer 9500 Series Snap Acting Pilot Operated Relief Valve is constructed with the same care and precision as our other valve lines.

These pilot operated valves are ideal for protecting air and gas pipelines, compressors, and vessels. The 9500 Series is an industrial service valve that sets higher standards for the safety relief valve industry. Mercer’s 9500 Series is a complete valve line with API orifice sizes from D through T and Full Bore Orifices form 1 ½” to 8″. Inlet and outlet sizes are available from 1″ x 2″ up to dual outlet 8″ x 10″ x 10″ valves. The Mercer pilot operated relief valves feature a low blowdown, reducing product loss.

The Snap Pilot design is based on Mercer’s patented soft seat, which has proven to be an industry leader in extended seat life. No other type of soft seat can match the cycle life of Auto-Seat Technology.    Mercer Valve’s Snap Pilots are of the improved type, with a vernier blowdown adjustment including “user friendly” stops to prevent improper adjustments. Mercer’s traditional “low rate” set springs ensure superior set point stability, which is a feature of all Mercer Valves.

The Mercer Valve Company 9500 Series Snap Acting Pilot Relief Valve features include:

• Mercer’s patented Auto-Seat Technology
• Adjustable Blowdown with Mechanical Stops
• Stainless Steel Internals
• Vibration Resistant Pilot Valve Mounting
• Leak Testing Meets API 527
• Snap Action Pilot Design
• Built in Accordance with provisions of ASME