CSST passing through wall

Specific Inspection Topics Plumbing Inspections
1

Is it OK for CSST to pass through a wall? I would think a sleeve is required? What are the applicable code sections? Thanks.

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2

CSST can pass through a sheetrock wall without a sleeve as long as the plastic coating is intact and there are no connections within the wall cavity. If it goes through masonry or brick walls, it must have a sleeve. This is from Gastite tech support.

Crappy drip/dirt leg as well.

3

Nothing “crappy” about it. Just plain wrong :smiley:

4

I think code doesn’t allow a flexible gas pipe passing a wall/floor

5

Thanks for your responses.

6

Nothing wrong with csst passing through a wall as long as it is sealed to the wall according to the manufacture of such a product.
(see page 34)
http://www.tracpipe.com/Customer-Content/WWW/CMS/files/152565_OmegaFlex_DIGuide_9.11.pdf

SECTION 4.4B —THROUGH WALL
PENETRATIONS

  1. Counter Strike®
    with its specially formulated polyethylene jacket has been tested
    to the flame spread and smoke development requirements of ASTM E 84 and
    meets ANSI LC-1 limits imposed for this
    criteria.
  2. For through wall penetration fire stop
    instructions refer to the UL classification
    requirements shown in Appendix A. When
    passing through a fire stop (2hr. wall) the
    jacket shall not be removed. Seal between
    building and Counter Strike®
    with an
    approved 3M type CP-25 or equivalent
    caulk.
  3. Counter Strike®
    has through wall penetration UL Classifications for 1, 2 and 4 hour
    requirements depending on materials and
    type of construction. See Appendix A
7

This applies to appliance connectors, not gas piping.