Giant Accumulator/Pulse Dampener Leaking

[Rudy]

I have several Giant 12GPM pulse dampeners installed on my Spot Free Pumps (Cat 1010's)...running about 400 psi. They lasted about 9 months before they started leaking water out the top, so I rebuilt them with new bladders last week.

Two of the three are already leaking out the top again. Is there a trick to getting these things to seal? BTW...when I rebuild them, I use tire bead sealant to seal the bladders to the top as suggested by the manufacturer.

Ideas?

 

[I.B. Washincars]

Have you tried running the unit without them? My SS bays came equipped with Giant accumulators. As they start leaking I take them off and throw them away. I have many bays running with none at all and can't tell the difference. My older Mark VII autos used a Hypro dampener. I removed them as they failed and again can tell no difference.

 

[pitzerwm]

What about making up a length of hose with a capped end?

 

[I.B. Washincars]

According to James from Arimitsu a pulse hose is a special type hose. Just capping any piece of hose you will have something that just looks like a pulse hose.

 

[soapy]

I replaced all my Giant accumulators with pulse hoses several years ago. No leak problem and much cheaper.

 

[MEP001]

The Hypro pulse dampers will last - I've seen some 20 years old and still holding their charge. The Giant ones seem to go bad very frequently.