A relay valve is an air-operated valve. It is used in air brake systems to remotely control the brakes at the rear of a heavy truck or semi-trailer in a tractor-trailer combination. Relay valves are necessary in heavy trucks in order to speed-up rear-brake application and release, since air takes longer to travel to the rear of the vehicle than the front of the vehicle, where the front service brakes, foot-valve, parking-control valve, and trailer-supply valve (if applicable) are located.
relay valve
Trade on HiSupplier, Worry Free Guarantee
•Trading safety, secure your money, lower the risk, protect both buyers and suppliers
•HiSupplier is a Chinese multinational company in U.S, it helps to coordination and order landing.
- Product Details
- Company Profile
- Product Reviews
.jpg)
.jpg)
.jpg)
.jpg)
Didn't find what you're looking for?
Post Buying Lead or
contact our customer service specialist for help!
