Mercer Valve Co., Inc. ® is committed to safely providing the highest quality pressure relief valve at a competitive price, delivered on time, and serviced by our trained professionals. Our "Auto Seat Technology"® utilizes low rated springs and a non-rising stem. By doing so, we are able to achieve a more consistent set pressure, reduce the need for repairs, and significantly extend the lifespan of our pressure relief valves. We continue to improve our products and services, while meeting industry standards to satisfy our customer’s expectations
Products
9500 Series | Snap Pilot
Our 9500 Snap Pilot Series is designed to pop open in response to pressure pickup at the inlet of the main valve. Our snap pilots have an adjustable blowdown that alters the set spring deflection once the valve has popped and the greater the deflection, the shorter the blowdown. Our 9500 Snap Pilot is based on proven control design principals, featuring our "Auto Seat Technology"®. The 9500 Snap Pilot Series valve is manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section XIII UV stamped applications for Air/Gas service. When you need to regulate system pressures and maintain overall quality, you need a safe and reliable valve. With a service range of 15 psi to 4500 psi and a wide array of options and applications, our 9500 Snap Pilot Series is a valve that you trust.
9500 Series | Gas Modulating Pilot
Our 9500 Gas Modulating Series is designed to gradually open the main valve in response to system overpressure. Modulating pilots produce far less shock on a system and provide considerable resistance to wear and tear on the main valve components. Our 9500 Gas Modulating Pilot is based on proven control design principals, featuring our "Auto Seat Technology"®. The 9500 Gas Modulating Series valve is manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section XIII UV stamped applications for Air/Gas service. You need a safe and reliable valve when it comes to regulating system pressures and maintaining overall quality. With a service range of 15 psi to 4500 psi and a wide array of options and applications, our 9500 Gas Modulating Pilot Series is the valve you can trust.
9500 Series | Liquid Modulating Pilot
Our 9500 Liquid Modulating Series is designed to gradually open the main valve in response to system overpressure. Modulating pilots produce far less shock on a system and provide considerable resistance to wear and tear on the main valve components. Our 9500 Liquid Modulating Pilot is based on proven control design principals, featuring our "Auto Seat Technology"®. The 9500 Liquid Modulating Series valve is manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section XIII UV stamped applications for Liquid service. When you need to regulate system pressures and maintain overall quality, you need a safe and reliable valve. With a service range of 15 psi to 1480 psi and a wide array of options and applications, our 9500 Liquid Modulating Pilot Series is a valve that you trust.
9100 Series | Flanged
Like the 9100 Threaded series, our 9100 Flanged Series is also state of the art when it comes to a soft seat and high flow rate design. It is an industry leader in pressure relief devices with a reputation for safety and reliability, low maintenance, and cost effectiveness. Our soft seat and fully guided disk design outlasts the competition and produces a valve that has consistent set pressures and a field proven tight lip seal. A tighter seal reduces leaks and limits product loss which leads to increased productivity and safety. The 9100 Flanged Series valve is manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section XIII UV stamped application for Air/Gas and Liquid service. This valve is well suited for specialty gases, compressors, separators, gathering lines and anywhere else you need a safe and reliable valve. With a service range of 10 psi to...
9100 Series | Threaded
Our 9100 Threaded Series is state of the art when it comes to a soft seat and high flow rate design. It is an industry leader in pressure relief devices with a reputation for safety and reliability, low maintenance, and cost effectiveness. Our soft seat and fully guided disk design outlasts the competition and produces a valve that has consistent set pressures and a field proven tight lip seal. A tighter seal reduces leaks and limits product loss which leads to increased productivity and safety. The 9100 Threaded Series valve is manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section XIII UV stamped applications. This valve is well suited for specialty gases, compressors, separators, gathering lines and anywhere else you need a safe and reliable valve. With a service range of 10 psig to 3500 psig and a wide array of options and applications, our...