low pressure pumping station setup question
- Thread starter Ric
- Start date
MEP001
Well-known member
No, and if you're concerned a failed high-pressure check valve might cause damage to the pump, use a pop-off valve instead.
I use a Speedaire regulator on the air for the low-pressure system, and tire cleaner/presoak/air all share one check valve at the boom. If the high-pressure valve fails it just bleeds off at the regulator and causes no damage.
I use a Speedaire regulator on the air for the low-pressure system, and tire cleaner/presoak/air all share one check valve at the boom. If the high-pressure valve fails it just bleeds off at the regulator and causes no damage.
Ric
Cantree Member
What do you use for a pop off valve. Could I tee it in with the pressure gauge on the manifold?
MEP001
Well-known member
http://www.grainger.com/product/CDI-CONTROL-DEVICES-Valve-6D915?s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/6D915_AS01?$smthumb$
I tee it on the bottom of the stack and slip a loop of 1/2" clear hose over it so if it needs to vent it's directed at the floor. It can tee in anywhere as long as it's between the pump and whatever pressure you're protecting the pump from.
I tee it on the bottom of the stack and slip a loop of 1/2" clear hose over it so if it needs to vent it's directed at the floor. It can tee in anywhere as long as it's between the pump and whatever pressure you're protecting the pump from.
Ric
Cantree Member
By the time the pressure spike hits the pop off valve at the bottom of the stack hasn't it blown out a solenoid valve by coming thru it the wrong way? In the past I have spliced in a cheap piece of poly tubing into each line just coming out of the solenoid. With a pressure spike that piece would blow out before reaching the solenoid.
MEP001
Well-known member
It won't hurt the solenoid for pressure to come through it the wrong way.
If I were going to splice a cheap piece of tubing as a safety, I'd put it at the boom rather than have it burst inside and get stuff wet.
I've never had an issue with the setup I described above with the air regulator acting as a bleed-off. I only use the pop-offs because sometimes the lines freeze and push pressure back and cause a lock between the pump and the solenoids.
If I were going to splice a cheap piece of tubing as a safety, I'd put it at the boom rather than have it burst inside and get stuff wet.
I've never had an issue with the setup I described above with the air regulator acting as a bleed-off. I only use the pop-offs because sometimes the lines freeze and push pressure back and cause a lock between the pump and the solenoids.
