Brochure

Gastite Division, Titeflex Corporation
1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / [e-mail]
52
April 2015
Section 4: Installation Practices
4.3.4 Concealed Fittings
e FlashShield™ Mechanical Fittings have been tested and listed per the requirements of ANSI LC-1 for concealed use. e
fitting may be used for concealed attachment including, but not limited to: appliance valves, branch runs using tee fittings,
length splices and stub-outs manufactured from approved fuel gas piping materials.
ese guidelines address some of the most common situations where concealing the fittings is the only practical alternative.
ese guidelines cannot address all applications of concealed fittings, but instead, provide typical instructions to demonstrate
the principles that apply to fittings listed for installation in concealed locations. (Reference National Fuel Gas Code, NFPA
54, Concealed Piping in Buildings).
a) New Installations (Fig. 4-43) – When multiple gas
outlets are supplied from a single run of FlashShield™
CSST, each downstream outlet branch can be
connected to the main run using a tee-type fitting
which can be located in a concealed location.
b) Fireplace key valves (Fig. 4-44) – FlashShield™ CSST
connections to fireplace key valves can be located in
a concealed location when accessibility is not readily
provided.
c) Stub-outs (Fig. 4-45) – FlashShield™CSST connections
to stub-outs fabricated from approved fuel gas piping
materials.
d) Exclusion – Manifold stations for dual pressure systems which include the multi-port manifold, shut-off valve and
pressure regulator shall not be installed in concealed locations regardless of the qualifications of the tubing.
4.3.5 Modifications to Existing Systems
a) New Ceilings in Unfinished Rooms/Basements – FlashShield™ CSST fittings originally installed in accessible ceiling
locations can be concealed in the event a ceiling is installed at a later date.
b) Extensions to Existing Tubing Runs – Concealed tubing can be modified to permit an extension to another appliance
location provided there is sufficient capacity to supply both appliances at the same time. If an accessible location for the
modification is not available, the existing tubing run can be modified with a tee fitting that will result in a concealed fitting
behind the wallboard.
c) When modifications lead to concealed tubing, strike protection may be required. Refer to Section 4.4.
Fig. 4-44
Note: Strike Protection (Floppy) not shown for clarity.
Fig. 4-45
Fig. 4-43