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Hello all. I've been working with automated machinery for a long time, but haven't learned everything yet. 😉 I'm currently mentoring a high-school robotics team, and our robot uses a single-acting cylinder operated by a solenoid valve. The cylinder needs to run at 20-25psi for proper thrust, and it works fine at that. But, the valve doesn't work at such low pressure. It hit me that the valve might be a piloted type. I want opinions on whether I understand how it works, or set me straight. I am thinking a piloted valve is a smaller valve operating a larger valve. That the solenoid drives the pilot valve, which ports air to move the larger valve. This would explain why we hear the solenoid click when energized, but no air output when used at low pressure. Do I understand this correctly?

Secondly, are piloted types more common than non-pilot? What are the advantages of the pilot type?

Thanks for all replies!, Hello all. I've been working with automated machinery for a long time, but haven't learned everything yet. 😉 I'm currently mentoring a high-school robotics team, and our robot uses a single-acting cylinder operated by a solenoid valve. The cylinder needs to run at 20-25psi for proper thrust, and it works fine at that. But, the valve doesn't work at such low pressure. It hit me that the valve might be a piloted type. I want opinions on whether I understand how it works, or set me straight. I am thinking a piloted valve is a smaller valve operating a larger valve. That the solenoid drives the pilot valve, which ports air to move the larger valve. This would explain why we hear the solenoid click when energized, but no air output when used at low pressure. Do I understand this correctly?

Secondly, are piloted types more common than non-pilot? What are the advantages of the pilot type?

Thanks for all replies!

[admin]

Can any help me the identification of the valve fitted on my tractor. the valve is for the air assisted steering made by auto steer of Leeds. I believe its a releife valve. any information would be great.

[admin]

Hi i hope you can help? I need to design a system to suck out a plastic component from a metal cap. i have tried asking our local supplier of valves and they cant help unless i know exactly what i am looking for! Any help would be greatly appreciated.

[admin]

Hello everyone, for fun I'm building a small automated assembly station in my bedroom. A big part of automation is fluid power. That being said, I want to make sure I add some safety features into my Pneumatic line so I don't blow a hole in my roof.

Attached you'll see an image of my proposed schematic.
It consists of the following:
1) Small hobby 12v 120psi Air Compressor with NO tank or safety features. Just a quick connect for a hose.
2) I purchased a tank to connect to my compressor. It is just a 2 gallon tank with two 1/4" NPT ports. No pressure relief or any other safety device.
3) The output from the tank will run into an Air Pressure Regulator
4) From here I will run directly into my solenoid valve
5) Pneumatic Cylinder

I know I probably need at least a pressure relief and/or a shutoff lever.
I am completely new to fluid power, so I'm not sure what spec/ guidelines here are.
I assume the pressure relief valve would be for backpressure, so after the tank?
Then before the tank would be a shutoff valve (lever) so I can disconnect the compressor

Do you guys have any input?
Anything would be appreciated!

http://tinypic.com/r/35ch8hz/6

Thanks (:

[admin]

Hello everyone,

I am in need of some help and guidance here.

What I'm looking for, is one piston that has a stroke of 6 foot, has a 3 " bore and half inch ports and runs at 300-1300 PSI.

Does anyone know of where I can purchase these?

I'm also looking for 2 identical smaller pistons with a stroke of 12 " or so and run at 10-60 PSI or slightly more.

Any help would be most appreciated as I'm finindng it difficult to obtain the larger piston I need.

Although from seeing similar designs online, I see some companies that do sell products near identical but they run at lower pressures and seem to do the same job of jerking back a weight upto around 220 lbs or lower.

Thanks to you all in advance.

Cheers. 😀

[admin]

i would like to know what pneumatic parts are needed to make a piston cycle fast. for example if i had a 2 way valve and a one way spring return piston and i hold the valve the piston goes out. if i were to release the valve it returns to home and i would have to repress the valve to create the motion again. but what i want to create is a piston that was "automatic" what pneumatic parts would i need and what website can i learn from. kinda like if i wanted to make a pneumatic reciprocating saw.

[admin]

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I am no engineer, just a jack of all trades trying to help a friend. We have built a control board that seems to work fine but we are having problems with bleed through. The board was built to use 5v to zero out the control and bring the cylinder back to bottom. Are the proportional valves so sensitive that the voltage needs be controlled down to a tenth of a volt or smaller to control the bleed through? If someone can give me an idea for a fix let me know. Thanks

[admin]

hi i am doing a project and i wish to know What are the industrial uses for supply air & xhaust air

[admin]

Just had a really good find! Purchased a load of pneumatic/hydraulic fittings from this UK website, and am really happy with the prices and services I received.

Just thought I'd share incase anyone else is after brass pieces, valves, adaptors, pushin fittings, tubing etc.

Hope this helps!

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[admin]

Hello everyone, we are Chinese reliable manufacturer for pneumatic fitting, nickel plated brass push in fitting, brass air fitting, one touch tube fitting, compression fitting, rapid fitting for plastic tube, air tubing, silencer, quick coupler, air blow gun etc. pneumatic components, supply competitive price and high quality products, could be visit our web: http://www.china-pace.com , http://www.air-pneumatic-fittings.com

[admin]

http://www.newera.co.jpThey are also called New-Era Co., Ltd. The last contact name I have is Y. Ikeuchi who's e-mail is ikeuchi@newera.co.jpRegards.

[admin]

How could contact you to know more detail?

[admin]

please contact us via our email address which is on our web: http://www.air-pneumatic-fittings.com http://www.china-pace.com

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