The M30 Series dome-loaded pressure maintaining valve delivers precise control of upstream pressure in high-flow and low to medium-pressure applications. Its balanced design ensures consistent regulation, preventing overpressure conditions where relief valves may be insufficient. Available with internal or external dome loading, it offers reliable performance without requiring a pilot regulator for gas service. Constructed from stainless steel or nodular iron, it withstands harsh environments while supporting a wide range of liquid and gas media. Leak-tight sealing, multiple elastomer options, and compatibility with various system configurations make it ideal for compressors, filtration, and pump control applications.

Key features

Dome-loaded pressure maintaining valve

Stainless steel or nodular iron construction

Internal/external dome loading

Outlet pressure: 0.5 – 70 barg (model dependent)

Inlet pressure: up to 70 barg

Leak-tight sealing with helium leak testing available

Compatible with NBR, FPM, and EPDM elastomers

High-flow design for efficient pressure control

Suitable for gases and liquids

Compact and heavy-duty design