SKU: AD-PRIMER
Primer - Aluminum One Way Check Valve 4AN with an 1/8" NPT Adapter

One way aluminum check valave 4AN and 4AN to 1/8" NPT adapter

This one way aluminum check valve is used to allow flow in one direction but not the other.

The most common use in our world is a primer nozzle for mechanical injection. Must be introdued in a pressure area - NEVER vacuum.

Another use is preventing fuel from returning to the tank after the pump is turned off, maintaining rail pressure.

Can be used with: Diesel, Oil, Water, Coolant, Air, Gasoline and other materials compatible with aluminum

Measures 2.4" in total length.

Minimum differential pressure to open the valve in the direction of flow: 3 PSI

Maximum differential the valve will hold: 90 PSI