WABCO P55122 RELAY VALVE

Description:

The WABCO P55122 Relay Valve is used in heavy-duty pneumatic brake and air control systems to rapidly apply and release air pressure to downstream brake actuators and pneumatic devices. Commonly installed in commercial vehicles, industrial pneumatic equipment, transportation systems, and air brake circuits where fast response times and reliable pressure control are required. Fleet maintenance technicians, diesel mechanics, and industrial maintenance personnel use this relay valve for brake system repairs, pneumatic system maintenance, and replacement of worn or failed air control components. The valve is rated for operating pressures from 0 to 150 PSI with a maximum pressure rating of 250 PSI.

Applications:

The WABCO P55122 Relay Valve is commonly used in commercial truck air brake systems, trailer brake systems, heavy-duty transportation equipment, industrial pneumatic controls, fleet maintenance operations, and compressed air distribution systems where rapid air pressure relay and dependable pneumatic performance are required.

Technical Specifications:

• Manufacturer: WABCO
• Part Number: P55122
• Model: 4S
• Product Type: Relay Valve
• Function: Pneumatic Pressure Relay and Distribution
• Operating Pressure Range: 0–150 PSI
• Maximum Pressure Rating: 250 PSI
• Operating Medium: Compressed Air
• Application: Pneumatic Brake and Control Systems
• Valve Type: Relay Valve
• Installation Type: Chassis or Equipment Mounted
• Control Method: Pneumatic Actuation
• Flow Function: Rapid Pressure Application and Release
• Construction Type: Heavy-Duty Pneumatic Valve
• Body Material: Industrial Grade Metal Construction
• Mounting Configuration: Application Dependent
• Industrial Grade Construction: Yes
• OEM Replacement Style: Yes
• Designed For: Commercial Vehicles and Industrial Pneumatic Systems
• Application Type: Air Brake and Pneumatic Control
• Service Use: Replacement of Worn or Failed Relay Valves
• Equipment Compatibility: Air Brake Systems and Pneumatic Equipment

Common Replacements:

• Bosch Rexroth Pneumatic Relay Valves
• Festo Pneumatic Control Valves
• SMC Pneumatic Relay Valves