Page 1 of 1
1/4" Pressure Relief Valve
Posted: Tue Oct 31, 2006 3:10 pm
by klrevo
hey guys and girls,
just wondering if anyone out there runs a relief/saftey valve on their air tanks???
want to run one of the tanks manifold incase pressure switch fails or the compressor just keeps pumping.
Pirtek have a few around the $20 mark, but theyre either 150 or 160 psi, was rathering something around 110-120 psi....
anyone run one? know where i can get one?
thanks for the help
dean

Posted: Tue Oct 31, 2006 3:29 pm
by RAY185
All the ones I've seen are about 150-160. I've got one on mine. Any reason you want 110-120? What is your pressure switch cutting out at?
pressure valve
Posted: Tue Oct 31, 2006 3:33 pm
by klrevo
yeh im thinking just grabbing the 150-160 psi ones. Pressure switch is the arb style from hobzee, on @ 70psi, off @ 100psi. I just figured there isnt a need to go any higher than 110, and if something did fail atleast i could possibly still use lockers at 110psi, but have no chance at 150/160psi...
thats all i was thinking.
iv got one of the 150psi ones on order i was checking to see what others have, as i havent paid anything yet.
dean

Posted: Tue Oct 31, 2006 4:07 pm
by -Scott-
In my last job we wanted a pressure relief valve in the 8-9 bar range. The best we could find was 11bar, which was quick and easy to adjust.

relief
Posted: Tue Oct 31, 2006 6:36 pm
by klrevo
yeh scott,
the one i got is from pirtek, and its a 1/4" BSP 11 bar preset. Pretty sure 11 bar works out to be about 159psi or something, and then im not totally sure, but im pretty sure they work like the staun deflators, and ill be able to wind it out a little to adjust it. Pretty sure thats the way it will work,
dean

Posted: Fri Nov 03, 2006 4:28 pm
by baddboy
11 bar is 161.7 psi.
1 bar = 14.7 psi or 1 atmosphere.
I guess you can work it out from there!
pressure
Posted: Fri Nov 03, 2006 4:39 pm
by klrevo
yeh i rounded it to 14.5 for one bar. therefore 159.5 psi, but yeh close enough good enough, im pretty sure theyre adjustable anyways, so i should be able to wind it out and callobrate it somewhere near where i want it.
dean

Posted: Mon Nov 06, 2006 11:52 am
by red90
1 bar = 14.5038 psi
14.7 psi is 1 atmosphere which is a different pressure.......
psi
Posted: Mon Nov 06, 2006 12:57 pm
by klrevo
red90 wrote:1 bar = 14.5038 psi
14.7 psi is 1 atmosphere which is a different pressure.......
so i wasnt that far off then

uni sure is paying off
dean

Posted: Mon Nov 06, 2006 3:28 pm
by ISUZUROVER
I bought a 1/4 adjustable relief valve from tradetools when I did mine. It was set at 150 or 160 from the factory, but it is juat a turn of the spanner/screwdriver to adjust. AFAIK all the standard ones are like this???
valve
Posted: Mon Nov 06, 2006 5:50 pm
by klrevo
yeh pretty sure thats what i got coming, just checkign what else was out there. I had one ordered for 110psi, but they were waiting till they had $500 worth of orders then the shipping would be free. Trouble is the company they order off, thats all they order from them, relief valves and those little air blower things. Wouldve taken like 6 months to get it. This one i got coming should be adjustable,
dean
