Category Specification Model 98L-150 Type Pilot-Operated, Spring-Loaded Pressure Regulator (Pilot) Function Pressure Reducing Regulator Outlet Pressure Range 15 to 150 psig (1.0 to 10.3 bar). This is the adjustable range for the controlled outlet pressure. Maximum Inlet Pressure Typically up to 400 psig (27.6 bar) or higher, depending on the specific main valve body it is mounted on. Pressure Rating (Body) Dependent on the main valve body (e.g., ANSI Class 150, 300, 600). Internal Relief Capacity The 98L pilot often includes an internal relief mechanism to vent excess downstream pressure if it overcomes the setpoint. Supply Uses the process fluid from the upstream (inlet) side of the main regulator as its power source. Materials of Construction Body: Cast Iron or Ductile Steel (standard). Internals: Stainless Steel, Brass. Temperature Limits Suitable for standard industrial temperatures. Specific limits depend on the elastomers used in the diaphragm and seals (e.g., Buna-N standard). Port Connections Typically 1/4" or 1/2" NPT for the sensing and control lines.
