Instructions / Assembly

®
System 1738 Installation Methods14
(a) DO NOT use solvents or cements other than what is
required by this guide.
(b) Before the use of cement and or primer, shake
the can thoroughly to ensure complete mixture of
container content
(c) Dry fit all joints prior to solvent welding to confirm
proper interference fit
(d) Discard fitting joints without proper interference fit
(e) DO NOT solvent weld joints that are too loose or
too tight
(f) DO NOT solvent weld joints without first beveling
pipe ends
(g) For assembly of System 1738 PVC piping, System
1738 PVC (auburn color) cement must be used.
(h) Primer must be used for all installations performed
at temperatures 32
o
F (0
o
C) or less. Where primer is
required (see Basic Principles of Solvent Welding in
this guide), System 1738 brand primer must be used.
(i) Assembly of pipe and fittings must be made while
the surfaces are still wet and cement is still fluid
(j) Joint strength develops as the cement dries. The
tight part of the joint the surfaces will tend to fuse
together; in the loose part, the cement will bond to
both surfaces
NOTE: Some appliance manufacturers furnish
adapter fittings which are PVC but black in color.
Check with the appliance manufacturer as to
whether these fittings are ABS or PVC before
selecting a solvent cement.
(k) Where transitions to ABS are necessary, only
System 1738 PVC Cement shall be used
(l) FOLLOW ALL solvent welding instructions provided
in this guide and on each can label of the selected
solvent welding product
(m) FOLLOW ALL System 1738 installation instructions
Solvent Welding Basics
Installation of System 1738 for the application of
flue gas venting requires a certain degree of skill to
avoid joint failures which could be life threatening.
Creating optimal solvent welded connections requires
attention to detail, proper preparation of components
and an understanding of all instructions in this guide.
On-site training is available from IPEX for proper
solvent welding procedures as well as other important
installation points. Contact IPEX for details.
WARNING
Cement Shelf Life
Cement and primers shall be used prior to the expiration
date or within 3 years of the date stated on the bottom
of the can. To determine the age of System 1738 cement
and primer, refer to the bottom of the container where
the Date of Manufacture, Expiry Date, or both will be
displayed.
Estimated Quantity of Solvent Cement
Average Number of Joints/Qt. of IPEX System 1738
Cement*
Pipe Diameter (inches) 2 3 4
Number of Joints 60 40 30
For the same number of joints if primer is used, one pint
of primer will be required for each quart of cement used.
*These figures are estimates based on our laboratory
tests. Due to the many variables in the field, these figures
should be used as a general guide only.