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Park Release Emergency Valve

WABCO's Park Release Emergency Valve (PREV) for trailers simplifies trailer systems by combining all functions of the former Trailer Emergency Valve and the Twin Release Valve to ensure the highest possible levels of safety during emergency braking.

Features and innovation

Trailer Rupture Function (Tear-Off)
Trailer Pressure Restraint Function
Combination of trailer emergency valve and twin release valve
Emergency braking function is therefore performed through the BBA and is ABS-controlled

Customer value

Ensures highest safety standard in trailer EBS braking systems
Automatically brakes trailer when disconnected during operation to ensure better safety
In case of an air leakage, an unhitched trailer also has the service brakes in operation automatically, through the spring brakes
All control functions are active in case of a supply line break

Difference

One of the top-class for Trailer EBS systems
WABCO is a global market leader for EBS

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