Parker’s DOT Single & Double Check Valves were designed to deliver increased flow capacity and reliable sealing, while reducing product size and cost. Check valves allow for compressed air to flow in one direction while preventing the flow in the reverse direction. For total system protection, check valves are typically installed upstream of the system component they are protecting. Parker offers our Air Brake DOT Check Valves with both composite and brass bodies. Multiple connection ends are available to fit then needs of your air braking system.

Unique to Parker, and patent pending, is the double check, or shuttle valve design. The air brake double check valve allows for the flow of compressed air both around and through the shuttle, creating up to 40% more air flow. The valve seal location remains centered with the seat for a consistent seal. This air brake DOT valve has been tested to withstand extreme temperatures and extensive cycle life.

Use Parker Air Brake DOT Check Valves with the following tubing:
• SAE J844 Type A & B Nylon Tubing

Markets:
• Heavy Duty Truck
• Trailer
• Mobile
• Rail

Features/Benefits:
• For use in air brake systems on semi-trucks, trailers, buses, mobile equipment, and farm implements
• Excellent vibration resistance
• Compact & lightweight design
• Composite body – strong, lightweight, and impact resistant
• Quick connect push-in fitting for leak proof tube connections
• Captured seals provide reliable sealing
• Double (Shuttle) design allows for up to 40% more air flow
• Double (Shuttle) valve meets: DOT FMVSS 571.106 & SAE J1409/J1410
• Single valve meets: SAE J1409/J1410

Applications:
• Air brakes
• Air tanks
• Air ride
• Sliders
• Tire Inflation
• Primary & secondary air lines
• Cab controls