Installation Guide

HOME-FLEX CSST 3
Applicable Codes and Standards
• Tubing greater than 1" (25.4 mm) inside diameter installed within hollow cavity
walls of 2 x 4 construction shall be protected along the entire concealed length in
the manner and using the shielding devices specied by Valencia Pipe Company.
• The width of the installed striker plate, at the points of penetration through wall
studs, oor joists, plates, sills, etc., shall be at least 1.5 times the outside diameter
of the tubing.
The inspection, testing and purging of the installation shall be performed using the proce-
dures specied in Part 4, General, of the National Fuel Gas Code (ANSI Z223.1/NFPA 54), and/
or the Natural Gas and Propane Installation Code (CSA B149.1), the International Fuel Gas Code,
the Uniform Plumbing Code, or in accordance with the requirements of the applicable local
codes. The installed gas piping system shall not exhibit any loss of pressure during the eld
pressure test.
When routing HOME-FLEX® tubing, sharp bends, stretching, and kinking or twisting of the
tubing are to be avoided as these can damage the CSST tubing. The minimum permissible
bend radius of HOME-FLEX® tubing is 1¼" (32 mm) for ½" tubing, 1⁄" (42 mm) for ¾" tubing,
and 2" (51 mm) for 1" tubing. Under no circumstances is this minimum bend radius to be
exceeded.
The piping system shall not be used as a grounding electrode for an electrical system.
1.3 Applicable Codes and Standards
Model codes which list CSST as an acceptable gas piping material:
ANSI/IAS LC-1 / CSA 6.26 Standard
CANADA-CSA B149.1 Natural Gas and Propane Installation Code
CANADA-CSA B149.2 Propane Storage and Handling Code
BOCA: National Mechanical Code
CABO: One and Two Family Dwelling Code
California Mechanical and Plumbing Codes
IAPMO: Uniform Plumbing Code
ICBO: Uniform Mechanical Code
ICC: International Fuel Gas Code
ICC: International Mechanical Code
ICC: International Residential Code
NFPA 54/ANSI Z 223.1 National Fuel Gas Code
NFPA 58: Storage and Handling of LP Gasses
SBCCI: Southern Building Code Congress International
Tested to Code Requirements per ASTM E84 / UL 723
This System Design and Installation Manual has been written in accordance with the most
current edition of ANSI LC1 CSA 6.26, Fuel Gas Piping Systems using Corrugated Stainless Steel
Tubing (CSST).
Items marked with the UPC logo are IAPMO certied for the United
States and Canada.