Low pressure switch

[farmtruc]

hey guys, anybody know where to get a low pressure switch.
I'm wanting to turn on a device at a certain pressure.
No need for anything over 20psi, adjustable would be nice.

I've seen and have one of those triangle Hobbs, black and brass pressure switches, but I'm looking for other options.

thanks,

allen

[vv8]

you get the beast running yet????????

[farmtruc]

Originally posted by vv8@Dec 19 2005, 07:29 PM
you get the beast running yet????????

Getting closer.

[MikeGyver]

I just ran across this post. If you're still looking, pneumatic HVAC controls sometimes use P-E switches (pneumatic-electric). I found two in a local supply house catalog. The first one measures about 1 1/4" x 1 1/4" x 2 1/2", has an adjustable set point of 2-25 psi, 2 psi fixed differential, and 20 amp SPDT contacts. It isn't listed in the specs, but I do believe it has 1/8" FPT. It retails for $72.
The other one measures about 1 1/4" x 3" x 4". It has a SPDT switch, rated at 13.8 amps (both controls are rated at 120V). It is adjustable from 1 to 20 psi, has an adjustable differential of 1-5 psi, and has 1/8" FPT. It is rated for 50 psi. It retails for $84.

[farmtruc]

Originally posted by MikeGyver@Jan 9 2006, 04:56 PM
I just ran across this post. If you're still looking, pneumatic HVAC controls ...

Thanks a lot for the info Mike!!

Also, I really appreciate you sending the video! I'm sure it's going to help out.

thanks,

allen