compressor

[gpcmatric]

Anyone know anything about them? Ive got a large compressor with a 1 hp motor but it uses the air quickly if i changed the motor to a 5hp would it charge the tank quicker?its a large compressor from a tyre shop 100ltr tank i think with a V type unit ontop of the tank.Any help most welcome

[garyv6100e]

Normally a compressor and motor are "matched" when new , the larger motor would only charge the compressor / vessel quicker if the motor RPM is faster than the old one . A lot of the old piston type compressors do take a while to charge as the RPM is a considerably lower than a newer unit where the compressors are not as durable as an older unit

 

Best thing to do is to set the pressure switch to cut out as close to the Max Safe Working Pressure typically 150 psi but set it to cut in circa 110 psi and you will find that it will not run to often as you have a large stored capacity of air

[w p e]

could always change the pulley and belt to spin the pump quicker. ours is the same always seems to be on just were pink ear muffs

[gpcmatric]

Normally a compressor and motor are "matched" when new , the larger motor would only charge the compressor / vessel quicker if the motor RPM is faster than the old one . A lot of the old piston type compressors do take a while to charge as the RPM is a considerably lower than a newer unit where the compressors are not as durable as an older unit

 

Best thing to do is to set the pressure switch to cut out as close to the Max Safe Working Pressure typically 150 psi but set it to cut in circa 110 psi and you will find that it will not run to often as you have a large stored capacity of air

 

Its already set at 150 psi and cuts in almost straight away,and can there be a problem with the compressor itself or motor ,wondering if there might be something else ?

[escortmad4eva]

the valve can get stuck open it happend to mine cos i didnt drain the water and seized the valve.

[garyv6100e]

Normally a compressor and motor are "matched" when new , the larger motor would only charge the compressor / vessel quicker if the motor RPM is faster than the old one . A lot of the old piston type compressors do take a while to charge as the RPM is a considerably lower than a newer unit where the compressors are not as durable as an older unit

 

Best thing to do is to set the pressure switch to cut out as close to the Max Safe Working Pressure typically 150 psi but set it to cut in circa 110 psi and you will find that it will not run to often as you have a large stored capacity of air

 

Its already set at 150 psi and cuts in almost straight away,and can there be a problem with the compressor itself or motor ,wondering if there might be something else ?

 

Take the cover off of the pressure control switch (also used as the on / off control) normally a black or grey box fitted to the vessel and you should be able to adjust the pressure differencial settings between cut in and cut off points . you my find that as it used to be used in a tyre centre that the set points are quite close to each other as they where using a lot of air . if in any doubt take a picture of the pressure controller and post it up so we can see how the adjustment settings work

[gpcmatric]

Will do ill do it tomorrow

[gpcmatric]

Sorry for delay heres the pics

 

[gpcmatric]

help please?

[garyv6100e]

The spring in pressure switch is you adjustment for your main cut out pressure but it looks like you have got an old danfoss pressure switch that does not allow you to set the cut in pressure any differently (differencial is preset) , it may be worth looking into getting a modern switch from somewhere like motivair (used to be in twickenham) they should not be to expensive , if you are going to boxhill on saturday i could have a chat with you there about it

[gpcmatric]

yes ok speak on sat

[w p e]

christ gra thats as old as you

[gpcmatric]

Dont bring the Lord into it yes vintage