Only rated at 70psi... 1900s compressor

by Liam
(Manchester, UK)

1900's compressor information plate

1900's compressor information plate

1900's compressor information plate
1900's compressor gauge on tank
1900's compressor info
1900's compressor overview

Why is this rated at such a low psi?

(if that is what the 70lb, on the plate, means?)

It weighs 23 stone (150 kilogrammes) , the motor and pump are big !

Is it the tank which is the limiting factor for the pressure?
I am hoping to get it up to 90 psi ... even if that means bypassing the original tank.

Was 70 psi the max around that time ...early 1900s
(see the old UK round plug, which has since been updated)

Cheers
Liam

Comments for Only rated at 70psi... 1900s compressor

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Jun 17, 2016
Looks like Broomwade
by: Grant

Looking at the crank case of the pump it looks like early Broomwade.

The pump its self is likely to be fine at a higher pressure, looking at the tank it is a flat bottom tank and would not have been rated for the higher pressure.

Either change out the tank or have it hydro tested (Water pressure tested) at 2.5 times the working pressure you wish to have.

The third thing is you will need to clamp test the current of the motor to ensure you don't exceed the makers maximum current rating. Increasing the pressure will require higher current.

Hope this helps.

Jun 05, 2016
70PSI
by: Doug in s.d.ca

Maybe for airing up tires?

But I have no idea what kinda of pressure they may have used in the U.K.

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