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Average Number of Joints/Qt. Of IPEX Cement*
ENG
FR
* These figures are estimates based on our laboratory tests. Due to the many variables in the field, these figures should be used as a gene-
ral guide only.
9. Handling and Storage of System 636
Pipe and Fittings
(a) PVC and CPVC are strong, lightweight
materials, about one fifth the weight of
steel or cast iron. Piping made of this
material is easily handled and, as a
result, there is a tendency for them to
be thrown about on the jobsite. Care
should be taken in handling and storage
to prevent damage to the pipe.
PVC and CPVC pipe should be given ade-
quate support at all times. It should not
be stacked in large piles, especially in
warm temperature conditions, as bot-
tom pipe may become distorted and joi-
ning will become difficult.
For long-term storage, pipe racks should
be used, providing continuous support
along the length. If this is not possible,
timber supports of at least 3" bearing
width, at spacings not greater than 3'
centers, should be placed beneath the
piping. If the stacks are rectangular,
twice the spacing at the sides is requi-
red. Pipe should not be stored more
than seven layers high in racks. If diffe-
rent classes of pipe are kept in the same
rack, pipe with the thickest walls should
always be at the bottom. Sharp corners
on metal racks should be avoided.
For temporary storage in the field when
racks are not provided, care should be
taken that the ground is level and free of
sharp objects(i.e. loose stones, etc.).
Pipe should be stacked to reduce move-
ment, but should not exceed three to
four layers high.
Since the soundness of any joint
depends on the condition of the pipe
end, care should be taken in transit,
handling and storage toavoid damage to
these ends. The impact resistance and
flexibility of both PVC and CPVC pipe are
reduced by lower temperature condi-
tions. The impact strength for both
types of piping materials will decrease
as temperatures approach 32°F (0°C)
and below. Care should be taken when
unloading and handling pipe in cold
weather. Dropping pipe from a truck or
forklift may cause damage.
Methods and techniques normally used
in warm weather may not be acceptable
at the lower temperature range.
When loading pipe onto vehicles, care
should be taken to avoid contact with
any sharp corners (i.e. angle irons, nail
18
heads, etc.), as the pipe may be dama-
ged.
While in transit, pipe should be well secu-
red and supported over the entire
length and should never project unsecu-
red from the back of a trailer.
b) Prolonged Outdoor Exposure
Prolonged exposure of PVC and CPVC
pipe to the direct rays of the sun will not
damage the pipe. However, some mild
discoloration may take place in the form
of a milky film on the exposed surfaces.
This change in color merely indicates
that there has been a harmless chemi-
cal transformation at the surface of the
pipe. A small reduction in impact trength
could occur at the discolored surfaces
but they are of a very small order and
are not enough to cause problems in
field installation.
(c) Protection – Covering
System 636 PVC and CPVC pipes are
packaged in crates and wrapped in pro-
tective plastic film, which protects from
UV
and
keeps
the
pipe
Discoloration of exposed pipe can be
avoided by shading it from the direct
rays of the sun. This can be accompli-
shed by covering the stockpile or the
crated pipe with a light colored opaque
material such as canvas. If the pipe is
covered, always allow for the circulation
of air through the pipe to avoid heat buil-
dup in hot summer weather. Make sure
that the pipe is not stored close to sour-
ces of heat such as boilers, steam lines,
engine exhaust outlets, etc.
(d) System 636 gas venting systems should
not be painted. Identification of product
material and certifications must be visi-
ble for maintenance and inspection pur-
poses.
10. Statement of the Bases for
Acceptance
The acceptance of any gas-fired appliance
using IPEX System 636 PVC or CPVC
Venting Systems is strictly predicated on
the followingconditions.
Condition No. 1 : Only System 636 PVC or
Condition No. 2 : The system has been
Condition No. 3 : The appliance manufac-
Condition No. 4 : IPEX's
Condition No. 5 : The authority having juri-
clean.
11. Maintenance
IPEX recommends that gas appliances
using System 636 gas venting systems be
checked once a year by a qualified techni-
cian. These recommendations were issued
on October 8, 2009 by:
IPEX Inc.
2441 Royal Windsor Drive,
Mississauga, Ontario, Canada, L5J 4C7
and are subject to periodic review.
CPVC components sup-
plied for the job have
been used in the installa-
tion, with nounauthori-
zed substitutions.
installed in accordance
with CSA B149.
turer's instructions have
been followed .
System
636
installation recommen-
dations have been obser-
ved.
sdiction (gas inspection
authority,
building
department, fire depart-
ment, etc.) was consul-
ted before the construc-
tion started and that a
permit was obtained if
necessary.
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