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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
5" (127 mm)
Radius Minimum
SF-12 or SF-18 Flexible Vent Section
GEAR
CLAMPS
Adapter
(SV4.5RF)
Apply ONLY MIL-PAC BLACK HIGH
TEMPERATURE SEALANT (Catalog No.
10K81) to the outside surface of both
collars of the adapter (be especially
careful to fill the grooves of the outer
collar to be covered by the flexible
pipe) and slide flexible pipe over
inner and outer adapter collars.
NOTE: OUTER PIPE IS PULLED AWAY TO
SHOW THE DETAIL OF THE INNER PIPE
FLEX VENT
1³⁄₄ in. (44 mm)
Flexible Pipe and
Adapter Outer
Collar Overlap
1³⁄₄ in. (44 mm)
Flexible Pipe and
Adapter Inner
Collar Overlap
SECURING SCREW
(3 PLACES EQUIDISTANT
JUST BELOW GEAR CLAMP)
Attach Adapter to Appliance
Collar, or Secure Vent Sections
SECURING SCREW
(3 PLACES EQUIDISTANT
JUST BELOW GEAR CLAMP)
Figure 45
Figure 44
VERTICAL OR HORIZONTAL VENTING USING
SECURE FLEX
KITS AND COMPONENTS
Secure Flex venting kits and components may
be used in any venting application where rigid
Secure Vent (SV4.5) direct vent components
can be used. All restrictions, clearances and
allowances that pertain to the rigid piping
apply to the flexible venting.
Secure Flex
kits
may not be modified; also, under no circum-
stances may separate sections of flex pipe
be joined together. Secure Flex kits may be
added to the end of a vent run made up of rigid
Secure Vent (SV4.5) vent sections provided
that doing so does not violate any of the
venting length, height, routing, horizontal to
vertical ratio requirements or clearance con-
siderations detailed in this manual.
Secure Flex kits come with an included adapter
that can be fitted to the appliance collar or the
inclined channel end of the last Secure Vent
(SV4.5) vent section in a rigid system in the
exact same fashion as any other Secure Vent
section. Align the dimpled end of the adapter
over the previously installed section or appli-
ance collar, adjusting the radial alignment until
the four locking dimples of the adapter are
aligned with the inlets of the four incline chan-
nels of the last vent section or collar. Push on
the adapter until it fully engages, then twist the
adapter clockwise running the dimples down
and along the incline channels until they seat at
the end of the channels.
B. Install the Outer Flex Pipe -
1. Install the large gear clamp loosely around
the outer flexible vent pipe, push it back out of
the way.
2. Apply a bead of Mill-Pac Black (700
°F) high
temperature sealant - Catalog No. 10K81) to
the outer adapter collar; to the grooves of the
collar which extend approximately 1 inch from
the end and to the flat surface, approximately
1³⁄₈ inches from the end.
3. Pull and extend the outer flexible vent pipe.
4. Slide the outer flex pipe over the adapter
collar. Ensure the flexible vent pipe completely
engages the adapter collar to a distance of 1³⁄₄
inches from the end, and that it is free from
damage or tears.
5. Slide the gear clamp down and tighten it
fully to secure the flexible vent to the adapter
outer collar approximately ³⁄₄ inch from the end
of the flex.
6. Install three screws 120 degrees apart
through the flexible vent pipe and into the
adapter collar just below the gear clamp to
provide additional security to the connection.
C. Route Flex Vent -
Ensure that the flex vent is properly routed to
provide the required clearance. Do Not allow
the flexible vent to bend in a radius tighter than
5" (127 mm). Refer to
Figure 45
. Support
horizontal sections of flex with metal straps at
2 foot (0.61 m) intervals.
Attach the flexible vent to the adapter as
follows (see also
Figure 44
):
A. Install the Inner Flex Pipe -
1. Install the small gear clamp loosely around
the inner flexible vent pipe, push it back out of
the way.
2. Apply a bead of Mill-Pac Black (700
°F)
high temperature sealant - Catalog No.
10K81) to the inner adapter collar, approxi-
mately ¹⁄₂ inches from the end.
3. Pull and extend the inner flexible vent pipe.
4. Slide the inner flex pipe over the adapter
collar. Ensure the flexible vent pipe completely
engages the adapter collar to a distance of 1³⁄₄
inch from the end, and that it is free from
damage or tears.
5. Slide the gear clamp down and tighten it
fully to secure the flexible vent to the adapter
inner collar approximately ³⁄₄ inch from the
end of the flex.
6. Install three screws 120 degrees apart through
the flexible vent pipe and into the adapter collar
just below the gear clamp to provide additional
security to the connection.
Note:
Secure Flex
vent must be attached to
Secure Flex
terminations only. DO NOT
substitute
Secure Vent
terminations or the
Secure Vent
adapter for
Secure Flex
compo-
nents. The collars of
Secure Flex
termina-
tions and adapters have a different circum-
ference than that used with the
Secure Vent
pipe. Additionally,
Secure Flex
components
have an extended length center tube for use
in attaching the flexible vent.
D. Attach Flex Vent to Termination -
Secure Flex components can be purchased
separately and attached to bulk lengths of
Secure Flex flexible tubing cut to size at the
job site. When using this method connect the
flex vent only to Flex Vent terminations, not
Secure Vent terminations. Secure the flexible
vent to the Secure Flex terminations in the
same manner (see
Figure 44)
as it was at-
tached to the adapter.