Air compressor with coin meter

Which makes sense aswell , as the size is a box 600mm x 600mm

Ok update as visited guy for 5 mins there, he already has massive compressed air system he plans to run line from tank to position and have normaly closed valve in line which opens when powered by 12v timer/coin box now he's handed me the coin timer which is 12/24v , a 12v transformer and a 6v normaly closed valve, which I think he needs a 12v valve


Whats your thoughts ? He says he knows won't make money , just another service .

You are not going to have any room for an air receiver of any useful size by the time you have the compressor and coin equipment in a box that size

I think the units you see in service stations use small rotary compressors as these don't have the starting stall issues that piston compressors have

So your coin timer operates a solenoid valve on the air line and allows air to the tyre filling valve for a preset time quite a simple one to do

Be easier with a 12v valve or alternatively you would need a multi tapped output on the transformer allowing for the 12v and 6v you will need

Would 6v valve cause problems as was going to wire in kitchen to see if operates as should??? Il try post few pics..

I wonder ,,,,,

UNG has the answer either a multiple voltage power supply or a 12V valve. Would be much more streamlined to have everything working off the same voltage, just make sure the transformer can supply the current required to operate the valve.

i=p/u said:

Would 6v valve cause problems as was going to wire in kitchen to see if operates as should??? Il try post few pics..

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Are you honestly thinking of supplying a 6V solenoid valve with double the voltage (12V) I doubt it'll work after the first time you try it...lol!! You need to match the voltage and current of both valve and transformer for this system to have any chance of working!!

You shouldn't need to be told this, you should dam well already know!!!

i=p/u said:

Ok update as visited guy for 5 mins there, he already has massive compressed air system he plans to run line from tank to position and have normaly closed valve in line which opens when powered by 12v timer/coin box now he's handed me the coin timer which is 12/24v , a 12v transformer and a 6v normaly closed valve, which I think he needs a 12v valve Whats your thoughts ? He says he knows won't make money , just another service .

Click to expand...

If it's a 6 Volt DC Valve, get an LM7806 - 6volt Regulator, a bit of vero board and a few other components......hang on I'll go and have a look in the toolbox.....

Here's roughly what you would need for the 6Volt Valve.....sorry for the delay in posting up, was in my tool boxes looking then when I came back the browser decided to keep bouncing me to Google Adverts..... A Bridge Rectifier, a Voltage Regulator Integrated Circuit (with a heatsink that clips on or goes on with a 4mm Bolt) a reservoir capacitor for the Regulator, a Resistor for the regulator(according to the rating on Data sheet) A 1N53 or 1N54 Rectifier Diode, or similar to protect the LED, Along with a small current limiting resistor...also a 1N5400 or a P600J Rectifier Diode to protect the circuit from return current when the relay coil de-energises, this goes onto the +Ve side of the relay coil...use the Relay switch to turn on/energise the coil of the solenoid N/C Valve on the Air Line by powering on the 6 Volts DC.....the LED is to indicate that the Valve is open.... Use the 12 Volts from the coin operated timer to close the relay and switch on/energise the 6 volt circuit by connecting the Rectified supply after the Bridge Rectifier... Also in the photo are some plastic standoff clips(handy for the Vero Board) and a few spade crimp/Inline crimp connectors which would also be handy... Look up Vero Prototype Circuit board (or circuit stripboard) to see the type of DIY board to use....

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Here's roughly what you would need for the 6Volt Valve.....sorry for the delay in posting up, was in my tool boxes looking then when I came back the browser decided to keep bouncing me to Google Adverts..... A Bridge Rectifier, a Voltage Regulator Integrated Circuit (with a heatsink that clips on or goes on with a 4mm Bolt) a reservoir capacitor for the Regulator, a Resistor for the regulator(according to the rating on Data sheet) A 1N53 or 1N54 Rectifier Diode, or similar to protect the LED, Along with a small current limiting resistor...also a 1N5400 or a P600J Rectifier Diode to protect the circuit from return current when the relay coil de-energises, this goes onto the +Ve side of the relay coil...use the Relay switch to turn on/energise the coil of the solenoid N/C Valve on the Air Line by powering on the 6 Volts DC.....the LED is to indicate that the Valve is open.... Use the 12 Volts from the coin operated timer to close the relay and switch on/energise the 6 volt circuit by connecting the Rectified supply after the Bridge Rectifier... Also in the photo are some plastic standoff clips(handy for the Vero Board) and a few spade crimp/Inline crimp connectors which would also be handy... Look up Vero Prototype Circuit board (or circuit stripboard) to see the type of DIY board to use....

well this will no longer let me post pictures on here......I tried but it wont for some reason....also unable to correct the last double post that came up when I clicked only once....

grantr37 said:

well this will no longer let me post pictures on here......I tried but it wont for some reason....also unable to correct the last double post that came up when I clicked only once....

Click to expand...

seems that I am getting stopped from putting photos or internet links onto my posts now...changed browser and still doing the same...

Started working again after about 2 hours......heres components (don't forget vero board/stripboard)

Aye I like your understanding and imfo you providegrant37 of this reminds me of all being at tech/college as we briahed on this stuff just not in gret detailbut think might be better using 12v version as only £8... On ebay. What kind if local shop would stick these 12v valves , plumbing suppliers ?

That's what he handed me , I'm looking for 12v now