air compressor pressure - Team Camaro Tech
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post #1 of 13 (permalink) Old May 1st, 19, 05:34 PM Thread Starter
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Kevin
 
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air compressor pressure

How long does your shop compressor maintain air pressure? My system is pretty old, not very complicated and I don't leave it plugged in. I've finely gone over it with dish soap and sealed the leaks I could find. It used to loose all the pressure in a couple of days, but now only looses a couple lbs. a day. It's a lot better, but now wondering if it's possible to get it to hold full pressure until I need it.

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post #2 of 13 (permalink) Old May 1st, 19, 05:52 PM
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Re: air compressor pressure

I set my compressor up with a ball valve ~4" out of the tank. It's a safety issue.
If a line blows, coupler gives up, etc. I can quickly kill the line pressure. My tank
and tank fittings don't leak. I just shut the valve off when not needed. Eliminates
any leak down due to hose, fittings, etc.
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post #3 of 13 (permalink) Old May 2nd, 19, 03:21 AM
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Re: air compressor pressure

Ball valve on mine always gets shut off and it doesn't loose any air. I do it in case I forget to kill the breaker and a hose breaks etc.
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post #4 of 13 (permalink) Old May 2nd, 19, 08:16 AM
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If I don’t leave any tools or blow gun plugged in, I know my setup maintains pressure over long weekends when I haven’t used it. Seems like the cheap Home Depot blow guns always leak a little at the trigger.
But normally I always close the ball valve at the tank anway.
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post #5 of 13 (permalink) Old May 2nd, 19, 04:34 PM
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Re: air compressor pressure

Ive always drained mine down at the end of the day...compressor tanks rust from the inside out
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post #6 of 13 (permalink) Old May 3rd, 19, 06:22 AM
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Re: air compressor pressure

Check the connector and the end of the hose where you connect your tools. Mine was slow leaking from there, changed it and no more leaks

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post #7 of 13 (permalink) Old May 15th, 19, 05:28 PM
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Jim
 
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Re: air compressor pressure

Mine had a check valve where the compressed air enters the tank. When that valve failed on mine the tank would start to decompress as soon as the compressor shut off. Maybe that valve is leaking slowly on yours?

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post #8 of 13 (permalink) Old May 15th, 19, 06:04 PM
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Re: air compressor pressure

Quote:
Originally Posted by 68Conv400HO View Post
Mine had a check valve where the compressed air enters the tank. When that valve failed on mine the tank would start to decompress as soon as the compressor shut off. Maybe that valve is leaking slowly on yours?
Normally if that tank check valve fails the compressor wonít start or has a hard time starting. The purpose of the check valve is to keep the pressure off the compressor head so it will start easier. The pressure switch should have a bleed off valve, to bleed the pressure off the compressor head after the compressor stops. If the tank check valve fails the air leaking out of the pressure switch bleed off valve should be very notable.

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post #9 of 13 (permalink) Old May 16th, 19, 05:28 PM
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Re: air compressor pressure

Quote:
Originally Posted by rogerh View Post
Normally if that tank check valve fails the compressor wonít start or has a hard time starting. The purpose of the check valve is to keep the pressure off the compressor head so it will start easier. The pressure switch should have a bleed off valve, to bleed the pressure off the compressor head after the compressor stops. If the tank check valve fails the air leaking out of the pressure switch bleed off valve should be very notable.

Roger
Agreed. When mine leaked it failed fully open so the air bled out fast. Looking at a new check valve, it doesn't appear very high tech. I was only thinking an old one might not seat perfectly due to a scratch, foreign matter, wear, etc. resulting in a minor leak. It was only an idea to look for a leak when one cannot be found elsewhere.

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post #10 of 13 (permalink) Old May 17th, 19, 12:14 AM
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Re: air compressor pressure

Put a ball valve when the air leaves the tank. Wire a switch in the pressure switch circuit so you can shut things off.
Might want to work on an air system past the tank because what's in the pic isn't good enough to be a joke.


You can search the internet, and figure out the good and bad techniques. Picture where water goes when it cools...
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post #11 of 13 (permalink) Old May 17th, 19, 04:13 AM
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Ball valve like others said is important. I kill the power and bleed the water out every night. I then bleed the water out again in the morning. Then go down the line and bleed the water separation systems. My system is about I years old, and always has 150 psi in the tank. Quality fittings and quality valves are key in reliability and safety.

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post #12 of 13 (permalink) Old May 17th, 19, 04:59 AM
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Re: air compressor pressure

Ball valve at the tank. Donít want to leave the hose pressurized an risk having it burst a snake all over causing damage

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post #13 of 13 (permalink) Old May 17th, 19, 06:55 AM
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Re: air compressor pressure

As suggested, install a ball valve to turn off hoses, etc.
Also, clean air filter, and as suggested drain tank removing moisture from tank.
You may need to increase hose/coupling size in getting volume of air.
The smallest orifice in the distribution system determines the volume of air delivered at end of hose.
Also, right angle elbows tumble the flow as air moves through system. Use a radius curve.

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