020071-1 check valve assembly for 90000psi waterjet pump 

Win Win waterjet provide many kinds of waterjet parts, OEM/ODM available 

To check the check valve body of a water jet pump, you can follow these steps:

Turn off the power supply to the pump to ensure your safety.

Locate the check valve body, which is usually located near the water inlet of the pump.

Remove the check valve body from the pump, following the manufacturer's instructions.

Inspect the check valve body for any signs of damage, such as cracks or chips.

Check the valve seat for any signs of wear or damage.

Check the valve disc for any signs of damage, such as cracks or chips.

Check the spring to ensure it is not broken or damaged.

Clean all the parts of the check valve body thoroughly with a soft brush and water.

Reassemble the check valve body according to the manufacturer's instructions.

Turn on the power supply to the pump and check for any leaks or abnormal noises.

If you notice any damage or wear on the check valve body parts, you may need to replace them. It is always best to refer to the manufacturer's instructions for proper maintenance and replacement procedures.