burner problem

[chirobob]

Hi all,
does any one know what purpose the spring loaded part that is central in the picture does. The part is a PA #VS 220. I am assuming it is an unloader, does anyone have any ideas on what it is or does?

I noticed some leakage from both my boilers today as soon as I put it under pressure (3000 psi) is starts to bypass some water out underneath it is rated to 3750 psi so pressure shouldn't be a problem.

I am assuming it is an unloader that has worn out, as I run an open gun and have removed the unloader after the pump I am assuming this also has no purpose. So rather than replace it I thought I would just remove it out of the equation. I don't have alot of experince with the burners/ boilers so I thought I would throw this out to you, and see what you guys think?????????

 

[Dan S]

Looks like a pressure relieve valve
The gray wire is a reed switch or high limit switch

I dont think you can get rid of either one..............

 

[Mark]

The brass piece with the hex head appears to be a pop off valve
/ pressure relief valve as Dan stated, hooked to a flow switch.

I would replace it, not eliminate it, I also suggest you replace
the unloader for safety reasons.

************************************************
<i>
GENERAL 631D/VS220 BALANCED RELIEF VALVE6 GPM, 3140 PSI

Product Information

Provides pressure protection for single or multiple gun and pump
systems. Lightweight, compact design quickly and conveniently
mounts directly into the discharge line. Provides back up protection
to assure complete pressure relief for maximum pump protection.

The relief valve is a secondary safety device. It does not replace
a pressure regulator or unloader.



Technical Notes
Mount in the discharge line before any other accessories are mounted.

Maximum pressure: 3650 PSI.
Maximum flow: 6.3 GPM.
Maximum temperature: 195 F.
Inlet: 3/8" FPT. Bypass: 3/8" FPT. Weight: 8 oz. </i>

 

[chirobob]

Thanks a bunch guys, I'll get a coulple of new ones tomorrow.
Cheers
Jason