Use and Care Manual
Troubleshooting Fitting Assembly and Correcting Leaks
Step 1: Gradually tighten tting until leak stops.
Step 2: If leak does not stop after reaching maximum torque,
stop, open the assembly and check for:
a. Proper tting assembly. Make sure the gasket is installed in
the base of the parallel thread of the tting. If it was not,
install the gasket, repeat assembly steps, and test for leaks again. Gaskets cannot be
reused: if it was installed, replace it with a new gasket and continue to step 2b.
b. Obstructing material in assembly. If dirt, shavings, jacket remnants, etc. are found, remove
material and reassemble, checking for leaks again.
c. Integrity of assembly pieces. If the retainer ring or the gasket are cracked, misshapen or
otherwise damaged, replace them and repeat assembly.
Note: DO NOT use sealing solution on parallel thread (gasket end) of tting assembly.
Gaskets cannot be reused, and must be replaced if tting assembly is disassembled.
Not all ttings include an o-ring and it is not part of the gas sealing mechanism.
WARNING!
Improper installation or operation of the
system may result in re, explosion, or
asphyxiation. Only the components provided
or specied by Valencia Pipe Company for
use with HOME-FLEX
®
or Alpha-FLEX™
as part of the fuel gas system are to be
used in the installation. Use of components
from other exible gas piping systems
other than those specied as part of the
HOME-FLEX
®
or Alpha-FLEX™ systems is
prohibited and may result in poor system
performance and serious bodily injury or
property damage.
While every effort has been made to prepare this document in accordance
with all regional model codes in effect at its printing, Valencia Pipe Company
cannot guarantee that the local administrative authority will accept the
most recent version of these codes. It is the ultimate responsibility of the
qualied installer to determine suitability and acceptance of any building
component, including gas piping. Valencia Pipe Company, manufacturers
of HOME-FLEX
®
CSST, assumes no responsibility for labor or material for
installations made without prior determination of
local code authority acceptance. HOME-FLEX
®
and
the VPC logo are registered trademarks of Valencia
Pipe Company, Inc. All rights reserved. 1608/B
HOME-FLEX® ttings achieve seal by compressing the tubing into the gasket. It is
critical that the cut end of the tubing is clean of any burrs or jagged edges, and that
there is no debris on the tubing or gasket. A seal is achieved with a good deal of
force. In the absence of a torque wrench, the general guideline is to tighten with two
wrenches (one holding the tting in place, the other turning the ange nut counter-
clockwise) until the nut will no longer turn and only 2-3 threads are showing.
1: Cut HOME-FLEX® tubing to length. Using a stainless steel rated tube cutter, cut the
HOME-FLEX® tubing to the desired length, leaving at least 1 extra inch for placement
of the tting. Cut in the valley of the tubing and clean any burrs or jagged edges. Cut in
full circular strokes in one direction, tightening gradually after each rotation. Be careful
to not overtighten the roller as it could atten the HOME-FLEX® tubing.
2: Remove tubing jacket to prepare for tting assembly. Using a utility knife, strip the yel-
low pipe jacket back 2 valleys from the end of the tubing.
DO NOT USE A TUBE CUTTER FOR THIS TASK AS IT COULD DAMAGE THE TUBING.
3: Place ange nut over HOME-FLEX® tubing. Slide the HOME-FLEX® ange nut over the
tubing with the threaded end pointing toward the end of the tubing. The ange should
cover the yellow tubing jacket.
4: Place retainer ring on HOME-FLEX® tubing. Place the retainer ring in the rst valley of
the tubing. Being careful to not dent the tubing, clamp the ring in place by applying
gentle pressure 360° around the ring. It should t tightly and not easily spin around
the tubing.
5: Install HOME-FLEX® tting in destination (manifold, pipe system, xed appliance, etc.).
Make sure that the gasket inside the HOME-FLEX® tting is secure on the socket. Apply
a pipe sealant to the tapered (NPT) thread of the tting and install it in the gas system.
6: Attach ange nut to the installed HOME-FLEX® tting. Place the HOME-FLEX® ange
nut onto the installed tting. Hand tighten the tting assembly from the nut-end being
sure that only the nut turns (the tting and tubing should not turn). Then tighten to the
recommended torque value (80 ft•lb for 1/2", 95 ft•lb for 3/4" ttings) using a second
wrench to hold the tting in place (generally, tighten with force until the nut will no
longer turn).
DO NOT use sealant on the parallel thread (gasket side) of the socket.
HOME-FLEX
®
CSST Fitting Assembly
11-429-XXX, 11-435-XXX, 11-436-XXX
Flange Nut
Tubing Retainer Ring
Fitting
1
3
5
6
2
4
Gasket
O-Ring