Q: What is WARDFlex®?
A: WARDFlex® is Corrugated Stainless-Steel Tubing (CSST). It is a continuous, flexible, annular gas piping system that delivers more performance and installation advantages when compared to either black-steel pipe or ordinary CSST systems.

Q: Is WARDFlex® certified for use in my area?
A: WARDFlex® is approved for commercial and residential installation in all 50 states. The Canadian Standards Association certifies WARDFlex® for use in single-family, multi-family, commercial and industrial applications. Wherever gas service is needed, WARDFlex® is the answer to more installed feet and more profit, per day.

Q: Where can I purchase WARDFlex®?
A: Trained installers can purchase the WARDFlex® system through plumbing wholesale distributors. For more information, contact your WARDFlex® sales representative.

Q: Is WARDFlex® certified medium- or high-pressure gas?
A: WARDFlex® is approved for both medium- and high-pressure gas piping within a building and has additional protection requirements to prevent rupturing of the piping material.

Q: How is WARDFlex® superior to conventional-steel (black) pipe?
A: WARDFlex® installs without time-consuming (and costly): heavy lifting, cutting, threading, extensive measuring and calculations, and mess. Connections can be made with simple hand tools in a few minutes. The continuous lengths and flexibility of WARDFlex® reduce the number of connections (and chances for leaks) in any installation.

Q: Is WARDFlex® only for residential-gas service?
A: No, WARDFlex® provides more profit with more installations for residential, commercial and industrial projects. The flexibility, flow, and StepSaver double-seal fittings make WARDFlex® the fast and reliable installation option. For residential applications, WARDFlex® is easily expandable, to accommodate upgrades like gas fireplaces, garage heaters, laundries, and gas grills. For commercial and industrial uses, elevated pressure and tubing sizes up to 2″ provide the gas volume required for higher-consumption appliances. Two-inch WARDFlex® can be the equivalent of five- or 6-inch low-pressure black iron pipe, when your local utility can provide 5-PSI. elevated pressure. And WARDFlex® can save days or even weeks in installation time, when compared to a commercial black iron pipe installation.

Q: How is WARDFlex® superior to other CSST systems?
A: WARDFlex® is superior in a variety of ways:
– WARDFlex® has the highest overall flow rate.
– Every inch of WARDFlex® is 100% tested.
– WARDFlex® is 100% annealed for more flex, requiring fewer joints, fewer leaks and fewer callbacks.
– WARDFlex® is sold on free, easy-to-carry reels, in continuous-run coils of up to 1,000 feet.
– WARDFlex® has a full-line offering, available in sizes 3/8″ to 2″.
– WARDFlex® is the industry leader in installations and years of experience.
– WARDFlex® is lightweight, allowing for faster handling and easier storage.

Q: How is the new WARDFlex® StepSaver Double-Seal Fitting superior to other CSST fittings?
A: WARDFlex® is superior to other CSST fittings in many ways:
The double-seal metal-to-metal and metal-to-gasket increases reliability and reduces potential for leaks.
The reusable gasket allows for fast reassembly without replacing any components, including the gasket.
The compact design is 40% smaller than the previous fitting, so it quickly fits into smaller spaces.
The one-corrugate ring crush zone seals tight with a couple of quick turns.

Q: Can I install WARDFlex®? 
A: Yes, if you have undergone the proper WARDFlex® training. For more information on the WARDFlex® training program near you, contact your WARDFlex® sales rep.


For additional information regarding CSST Bonding and CSST Safety, please visit: www.csstsafety.com
Q: Is WARDFlex® required to be bonded?
A: Yes, WARDFlex® CSST must be bonded.

Q: Is WARDFlex® considered bonded if it is connected to an appliance?
A: Yes, according to NFPA 54 section 7.13, the gas-piping system “…shall be considered bonded when it is connected to appliances that are connected to the appliance grounding conductor of the circuit supplying that appliance,” but Ward Manufacturing also requires supplemental direct bonding.

Q: Should WARDFlex® be directly bonded using a bonding clamp and wire routed so as to provide an electrically continuous path to ground?
A: Yes, Ward Manufacturing requires a supplemental direct bond. There are several methods that can be used to meet the installation requirements. See Technical Bulletin 2008-1, WARDFlex® CSST Electrical Bonding for details.

Q: What size jumper wire is required for direct bonding?
A: A minimum of a number 6 AWG copper wire is required for direct bonding .

Q: What type of bonding clamp should be used?
A: Any UL-467-approved bonding clamp can be used.

Q: How far away from the electrical service panel should the bonding clamp be placed?
A: The bonding clamp should be placed as close as possible to the electrical service panel.

Q: How many bonding connections are required per installation?
A: A minimum of one (1) bond on the consumer outlet side of the gas meter is required per system.

Q: Can a separate grounding electrode be installed to bond the WARDFlex® CSST system?
A: No. The WARDFlex® CSST system is required to be bonded to the electrical service grounding system. The use of an independent grounding electrode could cause a difference in potential between the gas piping system and other metallic systems in the structure that are tied to the electrical service grounding system. This difference in potential could allow arcing to occur. In cases where no other options are present, a secondary grounding electrode may be installed but must be connected to a common grounding electrode conductor (i.e. electrical service grounding electrode) per the requirements of the National Electric Code.


Q: Is bonding required for WARDFlexMAX®
A: While similar to the WARDFlex® Corrugated Stainless Steel Tubing piping system, WARDFlexMAX® CSST piping system has no additional bonding requirements imposed by the manufacturer. Installers must always check local codes to verify there are no conflicts with these instructions. WARDFlexMAX® is to be bonded in accordance with the National Electrical Code NFPA 70 Article 250.104 in the same manner as the minimum requirements for rigid metal piping. In the event of a difference between local code and WARDFlexMAX® electrical bonding instructions, local code will take precedence. Download the WARDFlex® Design and Installation Guide.

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