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What do you need to know about a combination brake valve?

What do you need to know about a combination brake valve?

A combination valve provides everything you need to balance your brake system in one compact unit. Combination valves include a metering valve for disc / drum systems and a proportioning valve plus a pressure differential switch. We also have combination valves for disc / disc systems without the metering valve.

What kind of valve is used for disc brakes?

For an under-the-floor master cylinder brake system, a 2 lb. residual valve is used for disc brakes to keep brake fluid from flowing back down into the master cylinder. A combination valve provides everything you need to balance your brake system in one compact unit.

When to use an adjustable proportioning brake valve?

This allows you to maintain pressure to part of the brake system at all times. An adjustable proportioning valve is used to set rear brake pressure reducing rear wheel lockup. This valve allows rear brake pressure to be reduced for driver preference. Adjustable proportioning valves are typically used in conjunction with a metering valve.

How are residual valves used in Master brakes?

Residual Valve Residual valves are used to maintain constant pressure on the brake system. For drum brakes, a 10 lb. residual valve is used to hold pressure against the springs in the drum. This allows the drum brake to engage more quickly and reduces pedal travel. For an under-the-floor master cylinder brake system, a 2 lb.

What kind of valve do you need for a disc brake?

This diagram shows a typical street rod brake system. A 2 PSI residual pressure valve (RPV) is needed in the disc brake circuit, and a 10 PSI RPV is required in the drum brake circuit as well as an adjustable proportioning valve (APV). This diagram illustrates the 2 most common types of fittings used in street rod brake systems.

A combination valve provides everything you need to balance your brake system in one compact unit. Combination valves include a metering valve for disc / drum systems and a proportioning valve plus a pressure differential switch. We also have combination valves for disc / disc systems without the metering valve.

Residual Valve Residual valves are used to maintain constant pressure on the brake system. For drum brakes, a 10 lb. residual valve is used to hold pressure against the springs in the drum. This allows the drum brake to engage more quickly and reduces pedal travel. For an under-the-floor master cylinder brake system, a 2 lb.

This allows you to maintain pressure to part of the brake system at all times. An adjustable proportioning valve is used to set rear brake pressure reducing rear wheel lockup. This valve allows rear brake pressure to be reduced for driver preference. Adjustable proportioning valves are typically used in conjunction with a metering valve.

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Ruth Doyle