I've just got a compressor running ( which i bought cheap , £12.00 - slight fire damage to the pressure / start switch - it wouldn't start untill i changed the capacitor ) I 've got another start switch here which states on the cap 175psi - the compressor tank is rated at 150 psi . I had a look at a smaller sealy compressor which is lower pressure and that also has a starter switch rated at 175psi ( from new ) . How can i find out what pressure it actually cuts out at ? I presume that the 175psi is what it's safe to , not what it actually swithes off at ? Regards Al .
- Thread starter Alan
- Start date
the snooper
getting older by the day
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- 21,063
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- Hull UK
take the top the switch off some have a nut to adjust the cut out presure some have a screw.
de adjust the screw/ nut then start the compressor up and when it cuts out note the pressure and adjust accordingly
de adjust the screw/ nut then start the compressor up and when it cuts out note the pressure and adjust accordingly
rtbcomp
Moderator
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- Sheffield UK
The quoted tank pressure is normally the maximum safe working pressure (SWP), and the safety valve should be set at about 10-15 psi above that. The pressure switch should cut out at no more than 150psi, it depends on the use really, for example if you only need 100psi you could set it to 110.
IIRC receivers are usually tested to about three times the SWP.
IIRC receivers are usually tested to about three times the SWP.
