I-VICFLEX.AQD-M_10
REV_B
I-VICFLEX.AQD-M
/ Victaulic
®
VicFlex
™
Style AQD-M Bracket / Installation Instructions
INSTRUCTIONS FOR REASSEMBLY OF A SERIES
AH2-CC FLEXIBLE HOSE
WARNING
• Always verify that the piping system has
been completely depressurized and drained
immediately prior to installation, removal,
adjustment, or maintenance of any Victaulic
products.
• Confirm that any equipment, branch lines, or sections of piping
that may have been isolated for/during testing or due to valve
closures/positioning are identified, depressurized, and drained
immediately prior to installation, removal, adjustment, or
maintenance of any Victaulic products.
Failure to follow this instruction could result in death or serious
personal injury and property damage.
1.
Verify that the system is depressurized and drained completely
before attempting to remove a Series AH2-CC Flexible Hose from
the sprinkler piping.
2.
While supporting the Style 108 Coupling, loosen the nut until
backed off no further than flush with the end of the bolt. Carefully
remove the flexible hose/coupling assembly from the sprinkler
piping.
3.
Fully disassemble the Style 108 Coupling from the inlet end of the
Series AH2-CC Flexible Hose by removing the nut, bolt, gasket,
and linkage from the housings. Inspect all components for any
damage or wear. If any damage or wear is present, use a new
Victaulic-supplied coupling assembly.
4.
Verify that the outside surface of the sprinkler piping, between the
groove and the end of the sprinkler piping, is generally free from
indentations, projections, weld seam anomalies, and roll marks
to ensure a leak-tight seal. All oil, grease, loose paint, dirt, and
cutting particles shall be removed.
The sprinkler piping’s outside diameter (“OD”), groove
dimensions, and maximum allowable flare diameter shall
be within the tolerances published in current Victaulic IGS
specifications, publication 25.14, which can be downloaded at
victaulic.com.
Spacer
Inspect
Inlet End
of Flexible Hose
5.
Inspect the end of the Series AH2-CC Flexible Hose to verify that
there is no damage (dents, crushed edges, etc.). A new, Victaulic-
supplied Series AH2-CC Flexible Hose shall be used if any damage
is present.
6.
Verify that the spacer is oriented on the inlet end of the Series
AH2-CC Flexible Hose, as shown above.
CAUTION
• A thin coat of a compatible lubricant shall be used to help
prevent the gasket from pinching, rolling, or tearing during
reassembly.
• DO NOT use excessive lubricant on the gasket sealing lips and
exterior.
Failure to use a compatible lubricant may cause gasket damage,
resulting in joint leakage and property damage.
7.
Apply a thin coat of a compatible lubricant, such as Victaulic
Lubricant or an EPDM-compatible lubricant, to the gasket sealing
lips and exterior. Silicone grease may be used (silicone spray is not
a compatible lubricant). It is normal for the gasket to have a hazy
white appearance after it has been in service.
8.
Place the lubricated gasket
onto the inlet end of the
flexible hose, then place the
Style 108 Coupling housings
over the gasket. Verify that
the gasket is seated fully
in the gasket pocket of
each housing and that the
housings' keys engage with
the spacer.
9.
Install the linkage onto the
housings, as shown to the
left.
10.
Install the bolt, and thread a
nut onto the bolt.
NOTE:
Verify that the oval
neck of the bolt seats
properly in the bolt hole.
DO NOT tighten the nut
completely. The bolt pads
need to be set at a gap for
reinstallation of the coupling.
The nut should be flush with
the top of the bolt to provide
the proper gap.
11.
Follow all steps on page 5.
