CSST piping was first introduced in North America in the 1990s in response to the American Gas Association's desire for a quicker, safer, less expensive way to install gas piping into new multi-family construction. In many areas of the country over the past decade, CSST is the predominant method of piping in new single and multifamily residences.
CSST has compiled a remarkable safety record over the past two decades. Currently, there are about 5 million homes in the United States that contain CSST. The seamless construction that reduces fitting joints, and a system approach that certifies both tubing and fittings produced by the same manufacturer, are important contributors to the quality and safety of CSST.
Installers have recognized the benefits of CSST. CSST weighs less than steel pipe—a 250 foot reel of ½" CSST weighs only about 40 pounds. CSST has easy-to-assemble fittings that seal tight the first time and every time, reducing the need for rework and call-backs. The fitting technology allows assembly of gas piping without the use of expensive equipment or special tooling. By reducing and eliminating the joints in a rigid steel pipe system, it eliminates the potential for leaking at those joints.
Finally, CSST is made to a stringent performance standard—ANSI LC-1, Standard for Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing. Most rigid steel pipe is imported, and has well-known issues, such as fracture from unintended building movement, porosity from poor metal castings, and failure from corrosion resulting in leakage that can lead to fire, explosion and deaths. There are approximately 65 deaths per year from gas explosions according to National Fire Protection Association (NFPA) statistics.
With an installed base of over 750 million feet, CSST has demonstrated its safety in millions of U.S. homes—and offers enhanced performance for continued success.