Air Valve Questions

continuous run unloader valve - operation of Load Genie  Can you educate me on the function, operation and installation of a unloader valve in a continuous run application?

www.grainger.com/Grainger/CDI-CONTROL-...

Check valve installation  Hi,
I am installing a commercial compressor onto a new tank. My question applies to the check valve. Is it acceptable to install the 3/4 inch check valve ...

Unloader Valve Problem  I have a Campbell Hausfeld 13 gallon air compressor, model #WL604004AJ. The unloader valve (part #CW00800AV) dumps air 90% of the time. I installed an ...

air cylinder cotrol palm engraver  dear sir
do you know of a way i can build a air cylinder cotrol plam engraver

if i sound like a nut case i am not

its air cylinder that drives ...

Solinoid valves  why some times solinoids with two coils used on pneumatic systems?what is the difference with one coil ?

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Bill says...

Hi Karwan....

1960 Brunner compressor valve issue  I recently purchased an old Brunner two stage model 229. Upon taking off the head to check the reed valves(as it would only pump to 10lbs then blow thermal ...

Compressor will only fill tank once / air leaking out  I have a Craftsman oiless 60 gallon compressor with issues. If the compressor is empty, the motor will turn on and start filling the tank. However, the ...

Compressor wont build pressure in tanks  It pumps air, as verified by removing the line from pump to tank. Check valve in line was OK. Holds air pressure in tank when line to pressure control ...

Valves  Hi I am buidling a 4x4 suspension using a single air bag.I need this bag to operate at two heights.

At the lower height pressure would need to be 5psi ...

Using a 2/2 NC valve for compressed air storage  Hi, I know in the article it says that the 2/2 NC valves are not normally used for closed vessels but how about in the following situation?

We are ...

Solenoid Valve questions.   Hi. I'm in China. As it is hard to explain to my workers some things I need, I decided to do some simple tasks by myself.

I've found so interesting ...

air flowing out through the unloader muffer on my r15 champion compressor why? thanks rick  air flowing out through the unloader muffer on my r15 champion compressor why? thanks rick

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Bill says...

Rick, if air is bleeding ...

campbell vt633500 - pressure switch leaks when turned off only.........  hello, i have a campbell vt633500 and only when i turn the switch from auto to off the switch leaks from what i think is the unloader valve and will keep ...

TANK CHECK VALVE  I PURCHASED A USED 1964 KARGARD MODEL 331TV, SERIAL N491906.
DOES THIS HAVE A CK VALVE AT TANK OR WOULD IT HAVE SOMETHING IN HEAD?
PUMPS GREAT , BUT ...

I got a 1988 sullair 125 it gets a lot of fluid in the air filter then dosent want to start  I got a 1988 sullair 125 my prob is fluid gets into the air filter after that it dosent want to start

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Bill says...

Jason, how ...

safety walve  nead information on issue
relase walve on compressed air to prevent damage on air tools / fans

we goth problems with to hige pressure some times ...

Pressure switch problem - not likely, it's a valve I think  I have a Hitachi EC-12. compressor pumps up fine but when it shuts off the unloader valve bleeds back to 60 lbs. and compressor tries to start but still ...

leaking air out of shut off  pumps up shuts off but air leaks out of shut off

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Bill says...

Howdy. If by the shut off you are referring to the pressure switch,...

If you have a pressure relief valve on an Air dryer do you still need one on the Tank?  Question says everything

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Bill says...

Jack, hope the answer does too! :-)

In theory, if nothing interfered with the flow of ...

Unloader valve - check valve - valve issues  I have a homemade air compressor my grandfather had for years. The problem was it leaked around the tube from the compressor to the tank.

Before ...

pluming from head of pump to air tank  Should there be a check valve on the 1/2 copper line that gos from the top of air pump to tank?

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Bill says...

Wes, usually the ...

Unloader leaks air  I purchased a new unloader and installed but it still leaks. If I don't push the unloader all th way in it won't leak.When pushed all the way in it pushing ...

air leakage from pressure switch after cut-out  after filing the set pressure the motor stops but air starts leaking from pressure switch.

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Bill says...

Not an unusual ...

what are the advantages of 5/2 over4/2 pneumatic valve  what are the advantages of 5/2 over 4/2 pneumatic valve

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Bill says...

Already covered in detail on the pages to do with air valves ...

can crusher valve.  150 psi, 6 gal Oil-Free Pancake Compressor
using this compressor. I would be using a pneumatic air cylinder no more then 2.5 bore with 6 inch minimum ...

kellogg american 331tva bleeds during operation  bleed off valve continues to off bleeds during operation

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Bill says...

It were my compressor I would check and make sure that ...

What are the information required as minimum to procure auto drain valve in the compressed air receiver.?  We are going to procure one auto drain valve in the drain line of the compressed instrument air receiver. The operating temperature and pressure of the ...

valve to control air to a tank from a compressor  i have a screw compressor with three air outlets, i have a 300 l tank which is connected to one outlet, i need a valve which is non return but lets the ...

air constally leaking from the unloader valve when unit shuts off  How to fix it....?

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Bill says....

Howdy!

Wander over to the site map, and read the page CHECK VALVE which will explain ...

air compressor won't stop filling with air - son pulled valve out?  my 3 year old son pulled a valve out of my tank when i was working with it now it won't stop running and can't figure out how to fix this problem......please ...

valve details for plumbing  if i can download a photo i would like to know where the bypass port is connected to , one port is inlet, other outlet and the bottom says bypass but i ...

Check Valve  I am installing a 2nd air tank for reserve when I use air sanders. Will a check valve from the plumbing section of a local hardware work with air pressure?...

pressure switch leaks - why?  clarke 150 litre compressor, condor MDR 3 - EA pressure switch. compressor will charge up to full pressure (120 psi) then switch will leak to 100 psi and ...

my compressor builds up presure then releases some then biulds it back up  it will not quit doing this it should build up pressure and hold it right? not release some till the compressor kicks back on its very annoying I have ...

on off on off - kellogg american air compressor  I have a seasoned kellogg american air compressor with a square D 9013fhg12x pressure switch. I have to use the circuit breaker as an on off switch because ...

air delivery valve oil leakage  air delivery valve oil leakage, what is the problem .. ?

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Bill says....

Chandru:

If what you are saying is that the valve that ...

Check Valve Gasket  I povided you a photo of my check valve gasket that was leaking. You asked where did I purchase my compressor and the make of my compressor. I purchased ...

Gasket ~ for check valve  I found the source of my leak. It is the gasket for the check valve. Where can I find a replacement gasket as seen in the picture?

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Check Valve  Is there a step by step procedure on how to remove and check the "check Valve?" I received your response on the problem with my leaking compressor and ...

Central Pneumatic Compressor leaking  My compressor won't hold air anymore. It's leaking by the electrical box. How can I get this repaired?

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Bill says...

Hello ...

air bleeding out of the unloader valve part of the Furnas presure switch  I've read al the faq's and find them usefull but still not sure what the problem is exactly.

Compressor is a a 3 piston from Princess auto. Pressure ...

Air compressor fills then shuts off as normal then tank starts to empty  air tank fills to 125 as normal then shuts off presure release stars to empty the tank. The swich with the wire pull ring on it. What couses this Thanks....

Charge Air Pro pressure switch issue  I have a old Charge air pro compressor by Ingersoll-Rand with a 5 hp 240V motor.

The factory installed telemecanigue pressure switch went bad. i replaced ...

Senco PC2001 Air Compressor Check Valve?  I have a Senco PC2001 air compressor with the following problem;

I turn the compressor on, it starts to get pressurized, reached its shut off pressure ...

Valves  I have a motorcycle lift that is air operated. The control valve has broken. I would like to replace it with a new one. What options are availible. It ...

Air leaking through the intake filter  This is a Champion 3Z172. Air is leaking through the air intake. Compressor pumps up fine but takes about one minute to leak down to 90 lbs and then compressor ...

Air valves - Can you supply me with one?  Trying to find a trucker style valve with a 1/2 " or 5/8 NPT line. Do you carry this?

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Bill says...

Hello Patrick. I get so many ...

Dump valve, Ok, I read about dump valve leak  Ok, I read about dump valve leak, but where is the one way valve? In the plastic line from pressure switch to copper tube, in the copper tube, or in the ...

Holding the air pressure until i release it  My air compressor builds air pressure and when its done filling. It starts leaking out the air...

It seems like air is coming out of some pipe by the ...

Gradually increasing pressure from a static source  I work in a liquid refinery. Our air compressors run at about 100 psi. In our refinery, there are air actuated valves that snap closed when there's a problem....

quincy model 230-32  if i hold my finger over a inlet hole in the air filter air is being sucked in and blown out.

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Bill says...

Good day, Mr....

My compressor has. a problem  One day it just stopped building up pressure. It's loseing air beneath the automatic control mechenism that's located next to the guages. What's the problem ...

CHECK VALVE necesary?  DO YOU HAVE TO HAVE A CHECK VALVE ON THE AIR COMPRESSER
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Bill says...

Yes.

If you don't have one, likely your compressor ...

where is the check valve located on my 60 gal. campbell hausfield  where is check valve located

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Bill says...
While I can't be 100% sure as I don't have your compressor, and I can't see ...

One way valve  I bought a new compressor. In bringing it home, I was told it would be OK to turn it on it's side. Now the one way valve, I think, has oil in it as it ...

SpeedAire Direct Drive compressor slow air leak  I can hear it below the tank pressure gauges but can't find the source.

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Bill says...

Could the air be leaking out your ...

source of manually actuated 3 way valves (rated to 30 - 40 bar)  Hi,
First of all, I have to say that I find your site extremely useful... I really appreciate all the work you had to put in it

I know that my quesiton ...

Check Valves - locate your information on check valves  I have an older SpeedAire portable compressor and I believe that my problem is the check valve. I have already replaced the pressure switch and integral ...

Need to find replacement pressure valve   It looks like a tire stem next to electrical box connected to air compressure.



Bill says...

I need a whole lot more info than that to try ...

#1 Air Brake Valve Guide  I was wondering if you could send me a list of the port numbers and what the do in a air brake system please.



Bill says...

Howdy Paul.

I ...

MY AIR COMPRESSOR TANK LEAKS.  IT WORKS, SETTING, GAUGE IS FINE BUT IT WOULD NOT GO FARTHER THAN 60 PSI AND AS SOON AS I SHUT IT OFF IT LOSSES ALL THE AIR INSIDE AND THE WAY IT SOUND ...

5/2 valve Advantage  What is the advantage of 5/2 valve over 4/2 valve in pneumatics.



Bill answers...

Hi Prateep. Thanks for visiting and writing in.

A five ...

Check valve into the tank needs replaced  Help me find one check valve for "Speed Aire"
industrial air compreesor Model 3Z355
1 stage ,2 hp.



Bill answers...

hey Larry, nice to ...

what the diffrent between 4/2 and 5/2 valve in application..  I want to buy .. a new valve for my project..and i just want to know ..the advantages between 4/2 and 5/2 valve.



Bill answers...

Hello Zaidi,...

Another solenoid valve question.  This is the solenoid valve bolt I was talking about.



Bill comments...

Howdy again. Yes, this is indeed a manual over-ride for this solenoid ...

How to stop air air leak from the compressor..  My air compressor is set at 80 psi. It pumps to this setting and as soon as it shuts off you can hear a leak from a valve at the back.

Then the pressure ...

Is there any such thing as a 2 point latching check valve?  Here's the scenario...

Suppose you have a compressor tank and you want the pressure to be vented at a certain high pressure. Just about any kind of ...

Check Valve (universal?) where do I find one?  where do I get a check valve for a
Porter Cable oil-less compressor
2.6 cfm 90 psig 6 gallon flat bubble.



Bill answers...

Hi William....

Pneumatic Circuit Valves  Respected Sir,

I am very much impressed to note that you have explained different types of valves very efficiently.I am very much thankful to you for ...

Auto Drain valves  Your document refers to auto drains as applying to industrial compressed air systems.

A question on a general petrol station site that supplies air ...