Watson-McDaniel PA-41 HDA Air Pilot Regulating Valve

Description:

The Watson McDaniel PA-41 HDA Air Pilot Regulating Valve is used in pneumatic control systems to regulate instrument air pressure and provide proportional output for precise process control applications. Commonly installed in steam systems, industrial process equipment, and pneumatic control valve assemblies, it offers a 4:1 pressure ratio with an operating range of 3–100 PSI for reliable actuator and valve positioning. Maintenance teams, OEMs, and system integrators use the Watson McDaniel PA-41 HDA for replacement, retrofit, preventive maintenance, and control system upgrades.

Applications:

The Watson McDaniel PA-41 HDA Air Pilot Regulating Valve is commonly used in steam distribution systems, pneumatic valve actuators, chemical processing plants, food and beverage facilities, HVAC control systems, and industrial manufacturing operations. The Watson McDaniel PA-41 HDA is designed to provide stable air pressure regulation with a 4:1 ratio and a 3–100 PSI operating range, making it suitable for precision pneumatic control and automation applications.

Technical Specifications:

• Brand: Watson McDaniel
• Part Number: PA-41 HDA
• Product Type: Air Pilot Regulating Valve
• Pilot Ratio: 4:1
• Operating Pressure Range: 3–100 PSI
• Operating Medium: Compressed Air
• Function: Pneumatic pressure regulation and pilot control
• Designed for use with control valves and pneumatic actuators
• Supports proportional pressure control in industrial processes
• Suitable for steam, process, and instrumentation applications
• Heavy-duty construction for continuous industrial service
• Intended for replacement and retrofit installations

Common Replacements:

• Watson McDaniel BA-41 HDA Air Pilot Regulating Valve
• Watson McDaniel PA Series Air Pilot Regulator
• Watson McDaniel Pneumatic Pilot Control Assembly