4.3.5 OUTDOOR ISSUES
General Provisions
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WARDFLEX Mechanical Joint Fittings shall be protected from the effects of weather when used out
doors. After the connection is made to outdoor equipment the WARDFLEX Mechanical Joint Fitting
shall be sealed by wrapping two layers of tape (e.g. PVC, Silicone) or by applying shrink sleeves (e.g.
PVC, Polyolefin).
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The following additional instructions regard the use of WARDFLEX in systems in which portions of the
piping are exposed to the outdoors as required to make connections to gas meters or gas appliances,
which are attached to, mounted on, or located in close proximity to the building structure.
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In cases where conflicting requirements exist, the order of precedence shall be as follows:
1 - Local Code
2 - Manufacturer’s Instructions
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The external protective covering shall remain intact as much as practical for the given installation.
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When installed along the side of a structure (between the ground and 6 ft.) in an exposed condition, the
WARDFLEX must be protected inside a conduit or installed in a location which will not subject it to
mechanical damage.
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WARDFLEX shall not be buried directly in the ground or directly embedded in concrete (e.g. patio
slabs, foundations or walk ways). When burial or embedment is required,WARDFLEX shall be routed
inside nonmetallic (e.g.PVC) conduit. The conduit shall be sealed at any exposed end to prevent water
from entering using double wrapped PVC tape or PVC shrink sleeves.
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When installed in crawl spaces or underneath mobile homes,WARDFLEX shall be installed in
accordance with WARD’s standard installation instructions. No special precautions are required
beneath the structure.
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When using a termination plate for an outdoor application, all four mounting fasteners shall be used
when installing the termination fitting.
Caution
: When installing WARDFLEX in brick or other applications where CSST may be exposed to an acid
wash, shield the WARDFLEX and/or ensure that all traces are removed to prevent premature corrosion failure!
