Air-con pump


I was down at the scrappy the other day and noticed what looked like a
NEW Air-con pump (ex automotive I assume) lying in the rain. Complete
with multi-vee pulley, electric clutch, plugs in the ports.
I assume it is a swash type piston pump.
Seems a pity to let it get crushed.
If anyone has reused one for "other" purposes I would be interested to
know for what? I am not interested in using it for its original
purpose.
Richard
Reply to
Richard Edwards
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I used one for an air compressor years ago. It worked quite well. You do need to put a draincock on the moisture trap though.
Steve R.
Reply to
Steve R.
Thanks for that. Having bought it for £5 I find that it is the same type (SD7H15) as is fitted on my motorhome, though a different model number. Having searched a bit I feel that it is maybe possible that the model number relates to drive clutch, pulley and backplate porting arrangement (however I may be wrong). If that is the case then it is worth putting on the shelf "just in case" as a new one is £175 and upwards! It is definitely unused!
Just for interest what pressure did you run your unit upto? I note that in an air-con environment it runs up to 330psi.
Richard
Reply to
Richard Edwards
Ordinarily, I used it at about 80 PSI. However, I used it with military surplus aviation oxygen tank as an air receiver. Thus, on occasion there was no problem running it at 200 PSI when needed. I made an adjustable safety valve, so pressure limits were easy to change, The tank was rated for 2,000 PSI. I replaced the pulley/ clutch assembly with a larger diameter commercial die cast one. It was a twin cylinder compressor, and ran easily, powered with a 1/2 HP 120 volt AC motor.
Steve R.
Reply to
Steve R.
if your car runs on lpg
fix a hand crank on it and it can be used for transfering lpg from a bottle to your car......... but only if its the radial engine type pump with multiple pistons and a wet sump.
alll the best..markj
Reply to
mark

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