Cat 3535 no pressure

[MEP001]

I saw that but we are running more than 20 GPM.

I didn't see it in 1" on their site, but they may have them.

 

[OurTown]

That regulator doesn't have an integrated check valve. Depending on plumbing, I would probably replace the existing regulator with a general 5221 unloader. That way you get a new unloader/regulator, and also get the check valve needed. But the plumbing would have to be configured where the blowdown and all other solenoids etc is downstream of the unloader's check valve.

The blow down and solenoid valves are all down stream now.

 

[OurTown]

 

[JGinther]

Thats already a paraplate check valve like i mentioned. They are very high quality. The unloader I mentioned would plumb in nicely there. You would get rid of the tees and just install the unloader right where the 1st galvanized tee is.

 

[MEP001]

FWIW I've had far better luck with that regulator than an unloader. I'd start with a repair kit for the check valve.

Kleen-Rite Corporation - Paraplate Check Valve 3/4 FxF Repair Kit

Paraplate Check Valve 3/4 FxF Repair Kit

www.kleen-ritecorp.com

 

[OurTown]

I should have known it was a Paraplate because it looks just like the smaller ones we have.

 

[OurTown]

I replaced the o-rings in the check valve and the smaller one (the more important one) was almost completely missing. Cheap and easy fix.