Since the CSST gas line has such a thin metal wall (0.3 mm thick), it is important to protect the gas line from nail punctures. Chapter 24 prohibits the reconditioning or reuse of any pipe, fittings or valves, unless theyre free of debris and are suited to the intended purpose. CSST needs to be electrically bonded and grounded to prevent damage to the line. Generally, appliance manufacturers will provide specifications for pipe size that are often dependent on British Thermal Unit (BTU) inputs such as furnaces or boilers. Connections are made with common flare fittings that tighten with standard wrenches. Current through Register 1492, March 31, 2023. The manufacturer will specify where and when shutoff valves will need to be required. Our content experts ensure our topics are complete and clearly demonstrate a depth of knowledge beyond the rote. To find laws and incentives for other alternative fuels and advanced vehicles, search all laws and incentives. All agencies must purchase the most economical, fuel-efficient, and low emission vehicles appropriate to their mission. Joining two or more connectors is not permitted by installation codes or product standards. The CSST has many advantages. Flexible Corrugated Stainless Steel Tubing (CSST) will also be allowed as per the manufacturer's guidelines. You should also see the citations both in this article and in the references at the bottom of the page. Section 5.05 - Modifications to Chapter 5, Gas Piping System Design MassDEP prioritizes projects that benefit environmental justice communities. An illustration of a magnifying glass. Over the years I have inspected so many homes with flexible gas lines,also known as CSST. Lets look at exactly why that happens: CSST is extremely thin compared to the traditional 4 mm black pipe. It must also be recommended for that use by the manufacturer (so no after-market repurposing is allowed). Read Also >> What Is The Code For Water Heater Installations? REGULATOR, PRESSURE. The safest would be a plug at the outlet port on this gas valve itself. If properly installed, your chance of a fire from CSST is as rare as a lightning strike. Installation procedures and alerts for flexible gas appliance connections You will see a number of manufacturer`s warnings and safety risks, including: Do not install flexible gas connectors in multiple or grouped sets use a single flexible connection line between the appliance and the gas supply connection point. If you have additional questions about codes specific to your area, contact your local building code officer. WARNINGRISK OF FIRE To reduce the risk of severe injury or death, follow all installation instructions. A requirement that installers must use gas shut-off valves comprised of materials compatible with the piping. Flex lines are all the gas company will use for new connections other than the rigid pipe going up to meters. Read More: How to Locate Underground Gas Lines Before You Dig. Can you cut into the pipe at a future date to install an added gas appliance? What Is The Code For Water Heater Installations? HEVs and AFVs must be acquired at a rate of at least 5% annually for all new motor vehicle purchases so that not less than 50% of the motor vehicles the Commonwealth owns and operates will be HEVs or AFVs by 2018.
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