lepljenje pvc cevi
Post on 30-Oct-2014
26 Views
Preview:
TRANSCRIPT
Gluing Instructions Quality connections can only be achieved by following proper procedures. Here you will find
out how to prepare and make such quality, air-tight and water-tight connections.
Before you begin… Familiarize yourself with this procedure to understand what tools, supplies, knowledge, and
preparation is required and what results you can expect.
Warning! - PVC glue vapors are toxic and highly flammable. Use in a well ventilated area and
avoid breathing vapors. Do not use any glue or primer near an open flame. Do not smoke while
performing or preparing for these procedures or while opening glue cans.
Tools and Supplies The following tools and supplies are used when performing most plumbing repairs on your spa:
2” Pipe Shear
(or Hack Saw)
Pliers PVC Glue Rigid to
Flex
PVC Glue Rigid to
Rigid
Primer For Rigid to
Rigid only
Hack Saw
(or 2” Pipe Shear)
Tape Measure Sand Paper #200
Utility Knife
Clean Rag
Piece Identification Below are shown the most common plumbing pieces encountered in a repair.
Flex
Pipe
Rigid
Pipe
Elbow
Fitting
Tee
Fitting
Coupling Union Manifold
The Basics
Remove old section then assemble replacement pieces without gluing
Clearly identify the leaky
area
Wipe off the area with a dry
cloth and look for the leak.
Once located, dry off the
area again to see how long
the crack or hole is. Make
sure that you know precisely
where the leak is coming
from.
Evaluate where to cut the
pipe
Plan the repair so that there
is enough pipe material left
after the cut to properly join
the new pieces together. This
may require replacement of
an additional elbow or a tee
fitting to allow the pipe to
bottom out in the fitting.
Cut the pipe off square Make all cuts as square as
possible. Use the 2” pipe
shear to cut the pipe.
A hack saw can also be
used if a pipe shear is not
available.
De-burr the cuts If using a hack saw to cut the
pipe, use a knife or
sandpaper to remove the
excess material from the
pipes. Be careful that little
pieces do not fall into the
pipe.
Trial fit the replacement
pieces
Pre-assemble the new
couplings or tee fittings in
place without gluing them
and then measure the
length of additional tubing
required. It is better to cut
tubing a little longer at this
time.
Trim to size Now is the time to adjust the
length of the straight sections
for a proper fit. Trim pieces in
small increments and make
square cuts.
De-burr replacement pieces After all pieces are properly
cut to length, use a knife or
sand paper to remove all
excess material from the
straight pipe sections just cut.
Make a Plan
Plan the assembly order Plan how you will get these
replacement pieces straight
(or in the proper orientation)
when joining multiple fittings.
Test your assembly plan Test you plan prior to gluing to
see if you have enough time
to work your plan. Testing also
validates your chosen order of
assembly.
Final Assembly
Rigid-to-Rigid Joints
When bonding rigid-to-rigid pipe joints, primer must be used to properly prepare the surface for
the glue. Primer is not used for flex-to-rigid joints or on air control assemblies.
Prime all joints Using the dauber in the
primer can, wipe the primer
on the contact areas of the
pipe joints on the outer side
of a pipe and the inner side
of a fitting.
Glue each joint together quickly (within 30 seconds)
PVC glue sets up quickly and you must assemble a joint within 30 seconds of applying glue. If
you try to twist or move a joint after this time, it will compromise its integrity and usually cause it to
leak.
Apply the glue Using the dauber in the glue
can, quickly apply a thin,
even coat of glue to the
outside of the pipe and the
inside of the fitting.
Push the pieces together and
twist
While the glue is still wet, push
the pipe into the fitting
rotating it about ¼ turn while
pushing them together. Once
the bottom of the fitting is
reached, twist the pipe an
additional 1/8 turn. Make sure
that the final twist properly
orients the pipe and fitting for
the next joint.
Hold the joint together Hold the fitting and the pipe
firmly in place for 10-15
seconds to allow the glue to
properly set. Wipe off excess Use the clean cloth to wipe off
any drips or excess glue.
Repeat this assembly process until all of the pieces are glued and assembled. Once all pieces
are assembled, allow all pieces to dry for 24 hours. After 24 hours, try to pull each joint apart to
make sure that you have glued all joints together.
Note: The last piece assembled may be too rigid to allow you to twist it into place. This is
unavoidable and this twisting in such a case cannot be performed.
Be careful not to apply too much glue (too much glue is indicated by drips inside of the joints).
Caution: If it takes longer than 30 seconds for any two pieces to be joined, you must discard all
of your work to this point and start over.
top related