anyone know how to fix a leaky Sealey SA2001FR filter/regulator

[MoreWellie]

I have a sealey SA2001FR filter regulator which leaks from under the regulator know when you try to reduce the pressure, it may have always done this as I haven't used it much

I thought I would use a Workzone filter regulator I bought last year but had never used, when I got it out it was nearly identical to the sealey and the only physical difference is the 1/4 inch ports rather than the half inch

I fitted the new regulator up and it is so simlar that it also leaks from under the regulator control

I took the Sealey apart and cannot see how it could do anything other than leak, there is a large plastic piston with a rubber seal round it pushed down by a large spring adjusted by the knob. Right in the middle of the piston there is a small hole (by design apparently) and there is also a hole in the top of the plastic cover so like I said it seems designed to leak

I believe it is plumbed the correct way round as there are triangles on the body and I assume they point in the direction that air should flow. The workzone valve has the same triangles and takes it a step further with In marked on one side and Out on the other

Has anyone made one of these work? and if so how did you do it please?

I am tempted to block the central hole up and try that but if anyone has already found the answer I would love to hear it

Thanks

 

[rtbcomp]

The hole should be left clear as air exits from there when you reduce the pressure setting to equalise the pressure between inlet and outlet. It shouldn't be coming out all the time though.

 

[MoreWellie]

Found some time today and... it is now working again
Step 1 is to take the regulator completely apart and clean out all the oil that leaked in from the lubricator whilst the pair were lying on the shelf
Step 2 is put vaseline over the various seals
Step 3 test and find it works
now I need to do the same to the workzone valve as I cannot find the receipt... except I haven't put any oil in that lubricator so I can miss out step 1

 

[Jim Davey]

Often o'rings move when parts are assembled dry, oiling/lubing them works well.