Backflow Preventer Test
My boiler fill valve isnt letting water supply in boiler.?
How come my boiler supply valve isnt letting water into my boiler, i have a cold water supply hooked up to it with the valve on i have tested the copper pipe goin into it and water flows into it, but when It reaches the valve it stops. I understand that it my have a backflow preventer in it and I am wondering if that could be malfunctioning. The hole you see on the front is where my expansion tank screws in. Also where could I get a new Valve. Thanks.
http://img149.imageshack.us/i/boilerfillvalve.jpg/
its not a steam boiler its hot water
I work on antique steam boilers and engines for a hobby and if your supply valve isn't letting feedwater into the boiler, I'm going to tell you right now that you potentially have a VERY dangerous situation on your hands. Until you get this issue resolved, I would recommend that you not steam this boiler up under any circumstances, unless you have a backup feedwater delivery system that is working correctly. Many people don't know this, but a low water condition in a boiler under steam is essentially a ticking time bomb and can result in a fatal explosion.
As to what may be causing it, I would say it's possibly one of two things:
1.) The check valve has been installed backwards and the flow of water is basically pushing it shut.
2.) The check valve is installed correctly, but is frozen shut due to corrosion and scale.
Either way, I would have a certified boiler inspector come out and take a look at it; he can probably tell you more than I can.
A look at what is currently available on eBay
 ABBITZ Backflow Preventer Test Gauge 0.25% accuracy US $650.00 
|
 Gage-It Model A-3 - Backflow Preventer Test Kit 3 Valve US $450.00
|
 Midwest Instrument Backflow Preventer R.P. Valve Test Kit US $499.99
|
 NEW- Wilkins, Backflow Preventer Quick Test Fittings, in case US $120.00
|
 Watts TK-99E Backflow Preventer Test Kit US $549.00
|
Items recently purchased from this site
You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
