How to replace a fill valve.
First turn the
water to the boiler off.
In some cases you may need to drain the
boiler.
If you do. Make sure the power to the boiler is off
If
you
have
Anti
freeze
in
your
system,
"Call
a
Professional"
Find a local Plumbing and Heating contractor
Click on any Picture to see a larger view.
The Fill Valve in this picture does not work at all the boiler has 2 psi in it
it needs to be replaced
The valve before the fill valve has no handle so I am going to replace that too.
The water is off and the power is off and the boiler is
drained. With two wrenches one to hold the fill valve from moving and the
other
to loosen the brass nut just push the nut to the side like in the picture Now
with the two wrenches one on the fitting to the left of the fill valve and the
other on the fill valve un screw the fill valve from the fitting.
This is what the inside if the fill valve looked like too. completely
full of rust Put some pipe dope or tape on the threads of the fitting you
removed the old fill valve from and screw the new fill valve on the fitting
Make sure you use two wrenches go one full turn past hand tight.
Now lets get rid of that bad valve I know that most people are
afraid of soldering so I am replacing this one with a compression ball valve
instead of soldering a new valve in
So first we cut the pipe on both sides of the valve. I made sure
I had the
main valve off first.
This is what the valve looks like notice the nut and the ring
After you cut off the old valve clean the end of the copper with
sand cloth. then slide one of the nuts over the pipe
Then slide the compression ring over the pipe
Then Slide the valve on to the pipe. I like to put a little pipe
dope on the ring. The manufacturer says not to But I do anyway.
Then with two wrenches I tighten the nut Make sure it is good and tight, But not
so tight you crack the nut.
On the left side of the valve I used a 1/2" female Iron pipe
size x male copper fitting adaptor The male copper end fits into the other side
of the ball valve
then I used a 1/2 brass nipple to make up the difference. The whole job
was done with out the need of any soldering
Don't forget to put the washer in and tighten the nut. Now you need to
