pneumatic foot switch

dr sportster · Feb 1, 2021

I bought a new pneumatic foot switch for my blast cabinet It has three ports .Two lines One in and one out to blast and a plug I tried three ways and it did not work or worked backwards. There are six possibilities It is a pain to switch hoses as they have no swivel end .Anyone know this foot switch and which port is which ?
switch pic

wore out · Feb 1, 2021

I am thinking it is made to "shift" a separate pneumatic valve, NOT to directly control the flow of air to a sanblaster???

Jaden · Feb 1, 2021

Here is a diagram that I found. "Inside ports are exhaust"

Mike(NEOhio) · Feb 2, 2021

Your page says it's five port. Are they numbered. Usually #1 is the pressure inlet, #2 and 4 are the working ports, 3 and 5 are returns for 2 and 4 respectively. All you need is a 2 position, 3 port valve for what you want and you'll only use two ports.

Steve@Advance · Feb 2, 2021

For your application, you will need to plug all but 2 ports.

Look for 1 or P on the valve. That will be pressure in.

Then A or B will be the out. Just have to put air to the 1 or P, see which port it comes out with the pedal released, plug that port, push the pedal, and connect that port to the blast hose.

But I am afraid the valve you have is not going to pass near enough volume of air.

dr sportster · Feb 2, 2021

Please explain .

dr sportster · Feb 2, 2021

Steve --how can you tell the valve will have insufficient air flow ?

dr sportster · Feb 2, 2021

I eBay emailed the seller and he said just have your local electrician hook it up for you . I wrote back I am an electrician it is not an electric device it is pneumatic . If you don't tell me how it connects I will return it .{ but I think I got the info here ][

wore out · Feb 2, 2021

(quoted from post at 11:27:56 02/02/21) Please explain .

My "impression" based on the few details I have is that is made to control a component such as an "air shift" or "air over hydraulic" valve, as a couple of examples. And things like that don't take a constant, high flow of air.

If it's purpose was just to function as on "on-off" valve for a sandblaster it would only need two ports and no "return" or "exhaust" ports.

Of course, if you can figure out an inlet and outlet port combination that will work as you need and it will flow enough air for your sandblaster it likely will work just fine.

Good luck!

Steve@Advance · Feb 2, 2021

That style valve is more designed for a small cylinder, not something that requires a full, unrestricted flow.

It should have the CFM rating on it, compare that to the CFM requirements of the blaster.

But you can try it, it might work.

dr sportster · Feb 3, 2021

Jaden provided the proper diagram . The feed goes in the bottom .Works like a charm .Thanks Gents !

pneumatic foot switch

dr sportster

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wore out

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Jaden

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Mike(NEOhio)

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Steve@Advance

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dr sportster

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dr sportster

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dr sportster

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wore out

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Steve@Advance

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dr sportster

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