Installation Instructions

Some General Hints
Valve Installation Guide
Mueller Industries • Memphis, TN • Customer Service Phone: [phone]
©
2010 Mueller
Industries
LI
T
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Pipe Preparation
Use thread seal tape or pipe
joint compound on all male
threads only before
assembling. Do not use on
inside (female) threads.
Accessory Checklist
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Thread seal tape or
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Pipe joint compound
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Wrenches
Accessory Checklist
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Wire brush or sand cloth
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Solder Flux
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Solder
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Tubing Cutter
Accessory Checklist
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Plastic primer
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Plastic solvent cement
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Tubing cutter
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Deburring tool
Assembly
Close the valve completely
before assembly. Use one
wrench to hold the pipe and
one t
o turn the valve. Never
at
tach a wrench to a valve
anywhere except to the hex
flange on the side you are
screwing the pipe into.
Cut copper tubing to size with a
tubing cutter or hack saw. Be
certain your cut is square.
Cut plastic pipe to size with a fine-tooth
saw or plastic pipe cutter. Be certain your
cut is square.
Threaded Installations Solder Installations Solvent Welding Installations
Be certain the valve is fully
open or remove stem and
bonnet before soldering. Apply
heat with a torch to the tubing
first. Transfer as much heat as
possible to the valve through
the tubing. Avoid prolonged
heating of the valve.
The surface to be soldered
must by covered with a thin film
of flux. Both the tubing and the
valve must be covered. Use flux
sparingly but be certain all
surfaces are covered.
Both the tubing and the valve
must be cleaned of all dirt, oil,
and corrosion. Use fine sand
cloth or a steel wire brush. Do
not use steel wool.
Remove all burrs on both the
inside and outside edges of the
tubing.
When the temperature of the
parts is hot enough to melt the
solder, the flame is removed.
Solder is then applied to the
joint and will automatically fill
the joint through capillary
action. Use about a 3/4" length
of 1/8" diameter solder for a
3/4" valve (more or less for
other sizes).
Drying or curing time will depend on the
type of solvent cement used.
Note: It is advisable that temperatures are
between 40ыF and 90ыF when solvent
welding.
Wipe off excess cement, leaving a small
bead or “fillet.”
Insert the pipe into the valve as far as it will
go giving a quarter turn to the pipe at the
same time. This guarantees an even
distribution of the cement into the valve
and pipe.
Both the end of the pipe and the inside of
the valve or fitting must be coated with
cement. Be sure to use the correct cement
for the specific type of pipe involved.
NOTE: On certain types of pipe, a second
application of cement is recommended.
For CPVC installations only. The surfaces
to be glued must be coated with a CPVC
primer before cement is applied. Be certain
both surfaces are clean before applying
CPVC primer.
Remove all burrs on both the inside and
outside edges of the pipe. Bevel the
outside end of the pipe to insure easy
insertion into the valve. This can be done
by using a half round file or utility knife.
Cutting
Reaming
Cleaning
Fluxing
Heating
Soldering
Cutting
Deburring & Beveling
Priming
Apply Cement
Joining
Cleaning
Think your project through and be certain you have all the proper tools and accessories.
Check the alignment of all fitting and pipes to reduce stress on the fittings.
A
fter completion, carefully inspect each joint for leaks.