Operation CHARM: Car repair manuals for everyone.

Vacuum Delay Valves

LOCATION
The Vacuum Delay Valve (VDV) is usually located within the vacuum hose routing or harness assembly.

PURPOSE
These valves are designed to decrease the rate at which vacuum is applied to or released from a component.

Types Of Vacuum Delay Valves:






TYPES OF DELAY VALVES

Vacuum Delay Valve (VDV) - Delays the application of vacuum to a vacuum-operated component.

Vacuum Retard Delay Valve (VRDV) - Delays the loss of a vacuum signal to a component when source vacuum decreases suddenly. May be used to delay the release of vacuum from any diaphragm as a momentary trap for vacuum.

Two-Way Delay Valve (DV-TW) - Delays vacuum equally in either direction. This valve is commonly used in Evaporative Emission Controls and can be inserted in the vacuum line in either direction.