residual valve

Why Are Residual Check Valves Not Used In Most Vehicles?

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Why Are Residual Check Valves Not Used In Most Vehicles? why are residual check valves not used in most vehicles? Many vehicle’s today use cup expanders in the wheel cylinders that keep an air tight seal. This prevents air contamination, eliminating the need for residual check valves. Which type of vehicle most often do not

Does A 4 Wheel Disc Need A Proportioning Valve?

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Does A 4 Wheel Disc Need A Proportioning Valve? Does a 4 wheel disc need a proportioning valve? Yes. The addition of a proportioning valve is a must . Without it your braking system will not operate properly. Do I need a proportion valve? A properly-working proportioning valve ensures your rear brakes do not lock-up