Installation Instructions
Troubleshooting Fitting Assembly and Correcting Leaks
Check for leaks. If a leak is detected, check the following:
Step 1: Ensure that all yellow nuts on the fitting are tight up against the black body of the fitting. If they are and leak
persists, go to step 2.
Step 2: Loosen the yellow nut and remove the pipe from the fitting.
a. Examine the inside of the fittings to make sure it is free of dirt or any debris that will interfere with the
outside of the pipe making a seal against the inside of the fitting.
b. Make sure that the outside of the pipe is clean and smooth.
c. Reassemble the pipe into the fitting follow the assembly instructions and check for leaks.
Note: It is not necessary to remove the yellow nut completely off of the fitting. If this occurs use the diagram above
to reassemble the fitting properly.
WARNING!
Improper installation or operation of the
system may result in fire, explosion, or
asphyxiation. Only the components
provided or specified by Pro-Flex LLC for
use with Pro-Poly or as part of the fuel
gas system are to be used in the
installation. Use of components from
other flexible gas piping systems other
than those specified as part of the Pro-
Poly systems is prohibited and may result
in poor system performance and serious
bodily injury or property damage.
1. Pro-Poly Underground pipe and fittings must be installed in
accordance with the Installation Practices & Guidelines
outlined in this document as well as all local plumbing,
mechanical, electrical and/or building codes and laws
applicable at the locale where Pro-Poly Underground is to be
installed. If you do not understand all aspects of the
installation requirements and local codes, locate a qualified
installer in your area who does. Customers may apply for a
Qualified Installer card, which may be required by some
jurisdictions, online at: www.proflexcsst.com
2. Only the components provided or specified by Pro-Flex LLC as
part of the piping system are to be used in the installation.
3. Never use Pro-Poly Underground products in aboveground
applications.
4. Never use Pro-Poly Underground products inside buildings.
5. Never encase Pro-Poly Underground products in concrete
6. Do not use Pro-Poly Underground pipe fittings to connect
poly gas pipes other than the specified size as marked on the
fitting.
7. Underground gas piping must be installed with sufficient
clearance from any other underground structure to avoid
contact, to allow maintenance, and to protect against
damage from proximity to other structures. In addition,
underground plastic piping shall be installed with sufficient
clearance, or shall be insulated from any source of heat so as
to prevent heat from impairing the serviceability and
reliability of the pipe.
8. Ensure that correct stiffener is used with the correct sized
pipe (part numbers are marked on stiffener)
9. Ensure the sizing on the fitting nut matches the sizing on the
pipe being connected.
10. The fitting is supplied assembled and ready to use. If the
fitting is disassembled, ensure all nut components are present
and in the correct orientation as pictured in Figure 1.
11. When installing PE pipe care must be taken to avoid
inducing excessive stresses to the pipe and fittings.
12. Excessive bending of plastic piping systems, particularly at
joints, can exceed stress limits and result in failure. Pipe, when
joined with fittings, shall be laid as true to line as possible, while
taking into consideration that common PE gas pipe may expand
or contract 1 inch for every 10
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F of temperature change per
each 100 foot section of pipe. Grading and backfilling must be
carried out carefully to prevent uneven settlement and
therefore excessive bending. Please refer to ASTM D2774 for
additional information on backfilling.
13. The use of damaged pipe where the joint is being made
must be avoided. If there is a cut or groove in the pipe that
section should be cut out. Sealing performance can be affected
by scored or damaged pipe, so caution should be taken if
present on the pipe.
14. The Pro-Poly
TM
underground gas piping system must be
pressure tested for leaks in accordance with all local codes.