Potter Roemer 4038 field adjustable Reg-U-Matic pressure regulating valve

Potter Roemer 4038 Valve
BrandPotter Roemer
Model Code 4038
Inlet Size (in.)2.5
Model Info

This brass valve with non-rising stem has brass and stainless steel internal parts, red alloy handwheel, female NPT inlet and male NST outlet.

Used as a control and regulating valve for fire service end-of-line application on high-pressure sprinkler, standpipe and combined system. Indicator bonnet shows whether valve is open or closed. Adjustable indicating scale permits easy field setting. The valve is used to regulate inlet pressure to 400 PSI/27.5bars.

Main Features:

  • 2½"/6.4 cm valve - Angle
  • Positive pressure control under residual and static condition
  • Positive pressure control up to 400 PSI/27.5 bars
  • Outlet pressure is set by the adjustable indicating scale
  • Maintains selected outlet pressure regardless of inlet pressure changes
  • Automatic balanced piston, adjustable spring-loaded design
  • Valve opens fully under low residual supply pressure condition
  • Tamper-proof valve pressure adjustment

Additional Features:

  • Maximum back pressure does not damage valve components
  • Complete piping system can be hydrostatically tested to 400PSI/27.5 bars without damaging the valve
  • Listed by Underwriters Laboratories up to 400PSI/27.5 bars pressure
  • Listed by Underwriters Laboratories as a checking device
Download Tech Spec

See more Potter Roemer products

Valves News

Potter Roemer Recently Updated Products