How to Repair A Flow Style Check Valve #11282

Loosen the outlet body from the check valve body using two 1-1/4" wrenches.

Unthread the outlet body from the check valve body.

Remove the outlet poppet and the poppet spring from the outlet body.

Loosen the end cap from the high-pressure cylinder with a spanner wrench.

Unthread the end cap from the intensifier.

Remove the check valve body from the high-pressure cylinder.

Remove the insert from the check valve body.

Loosen the retaining screw from check valve body using 5/16" and 1-1/4" wrench.

Unthread the retaining screw from the check valve body.

Remove the inlet poppet housing from the top of the check valve body.

Remove the inlet poppet from the check valve body.

Remove the outer O-ring from the check valve body.

Remove the inner O-ring from the check valve body.

Thoroughly clean the interior/exterior of the check valve body.

Make sure there are no scratches/galling and replace if necessary.

Clean the outlet body threads of all Blue Goop.

Put the inlet poppet from the kit with the larger surface down on top of the check valve body over the non-threaded hole.

Put the inlet poppet housing over the inlet poppet on top of the check valve body.

Apply blue loctite 242 to the first two threads of the retaining screw.

Put the retaining screw through the inlet poppet housing into the top of the check valve body.

Thread in the retaining screw to the check valve body.

Tighten the retaining screw into the check valve body using a 5/16" and 1-1/4" wrench.

Lubricate both the O-rings from the kit with an O-ring lube.

Slide on the first O-ring to the inner groove of the check valve body.

Slide the second O-ring to the outer groove of the check valve body.

Apply a light coat of Blue Goop around the outer face of the check valve body.

Proceed with the installation of the check valve body into the intensifier.

Thread the end cap onto the high-pressure cylinder.

Hand tighten the end cap on to the high-pressure cylinder.

Apply Blue Goop to the outlet body threads.

Put the poppet spring onto the larger end of the outlet poppet.

Put the outlet poppet and the poppet spring with the spring first into the outlet body.

Apply Blue Goop to all surfaces of the insert.

Put the insert, with the rounded side first, into the bottom of the check valve body.

Thread the outlet body into the bottom of the check valve body.

Tighten the outlet body into the check valve body using two 1-1/4" wrenches.

Connect the high and low-pressure water connections and continue the cutting process.