Pilot Operated Pressure Regulating Valves for Steam

The 403 Series pilot-operated (piston-actuated) pressure regulating valves are used for pressure reduction on steam mains and other process equipment. Pilot-operated regulators will maintain a constant and accurate downstream pressure regardless of fluctuations in supply pressure or usage. These regulators can be supplied with an optional internal sensing line which simplifies installation. Piston-actuated regulators are more compact than Diaphragm-actuated regulators. The 403 Series contains all stainless steel internals for high-pressure applications up to 450 PSIG. The Double-Spring option is available for a wider range of reduced pressures.

  • Pilot-operated regulators minimize outlet pressure fluctuations even when load varies
  • Internal Sensing option (If requested, the regulator can be modified to internally sense pressure, eliminating the need for an external sensing line)
  • Ductile Iron body to handle increased pressure and temperature
  • Hardened stainless steel seat and disc (55 Rc)
  • Variety of Sizes and Styles Available – Call Apex for More Information

Catalog Specification Sheet

I&M

Description

The 403 Pilot Operated Pressure Regulating Valves for Steam are primarily used for reducing pressure in STEAM systems.

These regulators can be equipped with an optional internal sensing line which simplifies installation.

The 403 Series has all stainless steel internals for high-pressure applications up to 450 PSIG.

Double Spring Option is available for wider range of reduced pressures.

Application Data Sheet – Fill Out and Return for Accurate Quote