Unloader valve hose / tube for air compressor

by Alvin
(Louisiana)

Unloader hose for Central Pneumatic Compressor 40440

Unloader hose for Central Pneumatic Compressor 40440

Unloader hose for Central Pneumatic Compressor 40440
Unloader hose connection for Central Pneumatic Compressor 40440
Unloader valve connecting hose

Need to know what the part number is and where to buy it. Approx cost?


This is the hose that goes from the tank to the regulator dials. The end connector pieces are worn. The hose portion blows out when the compressor hits approx 60 psi. The end that pops out is the one closest to the tank.

Comments for Unloader valve hose / tube for air compressor

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Dec 01, 2014
Unloader hose
by: Bill

The part in question is the unloader valve hose, running from where the air from the pump enters the tank and over to, and inserted into, the bottom of the pressure switch. This pressure switch has the unloader valve built in.

In trying to resolve this same scenario on one of my compressors, I couldn't find the OEM equipment either.

So, I visited the local industrial compressed air supply shop - they sell valves, cylinders and such like, along with a wide range of instant fittings.

I think you will find that the fitting size on your compressor is 1/4" NPT.

If you acquire two female 1/4" instant fittings (either straight or elbow depending on how much room you have to install them, and a length of 300 PSI rated urethane or high heat tube from the compressed air shop, you can use this as an alternative to trying to acquire the exact OEM replacement.

Worked for me, anyway.

I've added a photo of the compressor with the straight instant fitting on the unloader hose connection at the tank fitting, and the other end of the hose inserts into the fitting I installed on the bottom of the pressure switch. I used a 90 degree swivel elbow to make plumbing the tube easier for me.

Cheers,

Bill

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