Where is the Audi a6l check valve?

Audi a6l check valve is on the left side of the engine. One-way valve only has the water inlet one-way valve of the heater, and there is a direction switch on the rubber tube with a diameter of about 5 cm on the left side of the engine, which is the one-way valve. Under the action of spring pressure, the conical surface at the upper part of the oil outlet valve is closely matched with the valve seat, so that the high-pressure oil pipe is isolated from the cavity at the upper end of the plunger when the oil supply is stopped, and the oil in the high-pressure oil pipe is prevented from flowing back to the fuel injection pump.

Definition of one-way valve

One-way valve means that the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. Commonly known as one-way valve, also known as check valve or check valve. Used to prevent oil flow in hydraulic system or compressed air in pneumatic system from flowing backwards. There are two kinds of check valves: straight-through check valves and right-angle check valves. Straight-through one-way valve is installed on the pipeline through threaded connection, and right-angle one-way valve has three forms: threaded connection, plate connection and flange connection.

When installing the check valve, special attention should be paid to the flow direction of the medium, and the normal flow direction of the medium should be consistent with the direction of the arrow marked on the valve body, otherwise the normal flow of the medium will be cut off. The bottom valve should be installed at the bottom of the water pump suction pipeline. When the check valve is closed, water hammer pressure will be generated in the pipeline, which will seriously damage the valve, pipeline or equipment.