Section G2415.5 (404.5) provides that concealed connections or fittings must be limited solely to threaded elbows, tees and couplings, as well as brazed or welding fittings. Metallic pipe and fitting threads shall be taper pipe threads and shall comply with ASME B1.20.1. This code section includes installation of piping systems in prohibited locations, piping installations inside walls, piping inside solid flooring, and corrosion resistance among additional requirements. • NFPA 54, Annex B — Sizing Capacities of Gas Piping. Highlight differences between any two building codes. It is mandatory to procure user consent prior to running these cookies on your website. It must also be recommended for that use by the manufacturer (so no after-market repurposing is allowed). In the United States, there are primarily two model fuel gas codes. Gas piping valves should be rated for the required pressure and have a fuel gas service rating. International Fuel Gas Code Overview: Codes are used by contractors and inspectors as a guideline for the safe installation of appliances and piping. new buildings, existing buildings or structures, and new equipment and existing equipment. Natural gas is typically piped from the gas fields to utility companies in high-pressure piping mains that can see pressures in the thousands of psi. The dispenser and hose-end valve shall release not more than 4 cubic centimeters of liquid to the atmosphere upon breaking of the connection with the fill valve on the vehicle. Furthermore, inspections and testing procedures for the inspector are covered including methods used, permit procedures, and record keeping. The sizing tables included in a listed piping system’s manufacturer’s installation instructions. Some jurisdictions using very old codes had the fuel gas and venting systems covered under various chapters in the old BOCA or Uniform Plumbing Code or Uniform Mechanical Code. A three-way valve installed to admit the standby supply and at the same time shut off the regular supply shall be permitted to be used for this purpose. 15.12.020 Installation, conversion, maintenance, operation and safety standards. It continues to define and outline the differences in types of installations and buildings. Where the pressure of the piped fuel gas supply is insufficient to ensure such safe operation, approved equipment shall be installed between the gas meter and the appliance that increases pressure to the level required for such safe operation. The table title lists the type of pipe used. Plastic pipe shall be permitted to terminate above ground outside of buildings where installed in premanufactured anodeless risers or service head adapter risers that are installed in accordance with the manufacturer's instructions. wc or 8 oz. Referenced Organizations include: Appendix A offers general gas piping considerations and includes several tables concerning gas piping capacities in relation to size with valves and fittings installed.

Check with the gas supplier or gas utility to confirm the caloric value of the fuel gas. The International Association of Plumbing & Mechanical Officials struck a deal with the National Fire Protection Association to use the NFPA building code; they have been harmonizing the uniform codes with the NFPA 54 national fuel gas code over the last few code cycles. Where connected to rigid piping, a union shall be installed within 1 foot (304 mm) of either side of the MP regulator. Finally, this completes the index for the International Fuel Gas Code. This chapter lists all the product and installation standards and codes referenced throughout Chapters 1 through 7. 1.1.1.1 This code is a safety code that shall apply to the installation of fuel gas piping systems, appliances, equipment, and related accessories as shown in 1.1.1.1(A) through 1.1.1.1(D). Fuel gas pressures vary by the type of gas being used.

Code calculators automatically generate a detailed list of requirements. 5. This chapter covers scope, purpose, retroactivity, equivalency and enforcement. This chapter addresses specific appliances the code intends to regulate. The piping shall be purged with fuel gas and shall discharge to the indoors or outdoors through an appliance burner not located in a combustion chamber. The piping shall be purged with fuel gas and shall discharge to the indoors or outdoors through a burner that has a continuous source of ignition and that is designed for such purpose. Lapped flanges shall be used only above ground or in exposed locations accessible for inspection. A manual shutoff valve and an excess flow-control check valve shall be located in the liquid line between the pump and the dispenser inlet where the dispensing device is installed at a remote location and is not part of a complete storage and dispensing unit mounted on a common base. Factory-assembled anodeless risers shall be recommended by the manufacturer for the gas used and shall be leak tested by the manufacturer in accordance with written procedures. Duplicate relief valves shall be installed, each having adequate capacity to protect the system, and the isolating valves and three-way valves shall be arranged so that only one relief valve can be rendered inoperative at a time. Gas piping sizes shall be based on the maximum number of gas appliances and the combined manufacturer’s input rating on those appliances. This code change has me concerned.

Corrugated stainless steel tubing (CSST) where installed in accordance with the manufacturer's instructions. Under maximum demand, the supply pressure cannot drop below manufacturers minimum pressure requirements for any appliance in the piping system. All table entries have been rounded to three significant digits. It is important that a competent person install or repair and venting system or chimney. Gas Heating for Furnaces and Boilers Basics, Your email address will not be published. Discharge stacks and vents shall be designed to prevent the entry of water, insects and other foreign material that could cause blockage. Heat fusion fittings shall be marked "ASTM D 2513. This chapter covers general reference text, NFPA reference publications, other reference publications and references for extracts in mandatory sections. Dispensing devices installed within 10 feet (3048 mm) of where vehicle traffic occurs shall be protected against physical damage by mounting on a concrete island 6 inches (152 mm) or more in height, or shall be protected in accordance with Section 312 of the. Subscribe to our newsletters & stay updated, ASA Appointed to the ICC Plumbing, Mechanical, and Fuel Gas Code Action Committee, Natural Gas Pipeline Systems On Site Distribution – Strength Considerations, Using Pressure Regulators for Site Distribution in Natural Gas Pipelines, Emergency fixtures and emergency fixture mixing valve standards, Part 1, AD Finalizes Merger Agreement with Delta Distributors, BOILER 2021 – ABMA Boiler Technology Conference & Expo. Gas piping shall be sized in accordance with one of the following: 1. Furthermore, in each table, the sizing requirements are different based on that information. 1. Section 408 and 409 deal with Drips and Sloped Piping and Shutoff Valves, respectively. I have consulted on many fuel gas explosions where purging operations were conducted on new piping that had experienced odor fade because the gas had been in the pipe for an extended period. 401.1.1 Utility Piping Systems Located Within Buildings, 401.10 Third-Party Testing and Certification, 403.5.4 Corrugated Stainless Steel Tubing, 403.10 Metallic Piping Joints and Fittings, 404.4 Piping in Solid Partitions and Walls, 404.6 Underground Penetrations Prohibited, 404.7.2 Piping Installed in Other Locations, 404.8.1 Conduit With One End Terminating Outdoors, 404.8.2 Conduit With Both Ends Terminating Indoors, 404.11.2 Protective Coatings and Wrapping, 404.14 Piping Underground Beneath Buildings, 404.14.1 Conduit With One End Terminating Outdoors, 404.14.2 Conduit With Both Ends Terminating Indoors, 405 (IFGS) Piping Bends and Changes in Direction, 406 (IFGS) Inspection, Testing and Purging, 406.3.2 Appliance and Equipment Isolation, 406.3.3 Appliance and Equipment Disconnection, 406.6 Piping System and Equipment Leakage Check, 406.6.4 Placing Appliances and Equipment in Operation, 406.7.1 Piping Systems Required to Be Purged Outdoors, 406.7.1.3 Outdoor Discharge of Purged Gases, 406.7.2 Piping Systems Allowed to Be Purged Indoors or Outdoors, 409.3 Shutoff Valves for Multiple-House Line Systems, 409.5.2 Vented Decorative Appliances and Room Heaters, 411 (IFGC) Appliance and Manufactured Home Connections, 411.1.3.3 Prohibited Locations and Penetrations, 411.1.5 (IFGS) Connection of Gas Engine-Powered Air Conditioners, 411.3 Suspended Low-Intensity Infrared Tube Heaters, 412 (IFGC) Liquefied Petroleum Gas Motor Vehicle Fuel-Dispensing Facilities, 412.7 Additional Requirements for LP-gas Dispensers and Equipment, 412.8 Installation of Dispensing Devices and Equipment, 413 (IFGC) Compressed Natural Gas Motor Vehicle Fuel-Dispensing Facilities, 413.3 Location of Dispensing Operations and Equipment, 413.4 Residential Fueling Appliance Installation, 413.9 Discharge of CNG From Motor Vehicle Fuel Storage Containers, 414 (IFGC) Supplemental and Standby Gas Supply, 414.1 Use of Air or Oxygen Under Pressure, 416 (IFGS) Overpressure Protection Devices, 416.3.6 Size of Fittings, Pipe and Openings, Chapter 8 Referenced Standards (IFGC/IFGS), Appendix A Sizing and Capacities of Gas Piping (IFGS), Appendix B Sizing of Venting Systems Serving Appliances Equipped With Draft Hoods, Category I Appliances and Appliances Listed for Use With Type B Vents (IFGS), Appendix C Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems (IFGS), Appendix D Recommended Procedure for Safety Inspection of an Existing Appliance Installation (IFGS), Section 404 (IFGC) Piping System Installation, Section 405 (IFGS) Piping Bends and Changes in Direction, Section 406 (IFGS) Inspection, Testing and Purging, Section 408 (IFGC) Drips and Sloped Piping, Section 411 (IFGC) Appliance and Manufactured Home Connections, Section 412 (IFGC) Liquefied Petroleum Gas Motor Vehicle Fuel-Dispensing Facilities, Section 413 (IFGC) Compressed Natural Gas Motor Vehicle Fuel-Dispensing Facilities, Section 414 (IFGC) Supplemental and Standby Gas Supply, Section 415 (IFGS) Piping Support Intervals, Section 416 (IFGS) Overpressure Protection Devices. Section G2415.3 (404.3) prohibits installing pipes through ductwork, clothing chutes, chimneys, elevator shafts and dumbwaiters. Aluminum-alloy pipe shall not be used in exterior locations or underground. • NFPA 54, Chapter 9 — Appliance, Equipment and Accessory Installation. A fuel gas code, like any other code, is intended to be adopted as a legally enforceable document and it cannot be effective without adequate provisions for its administration and enforcement. CSST piping systems shall be installed in accordance with the terms of their approval, the conditions of listing, the manufacturer's instructions and this code. It consists of a figure and notes that visually depict code requirements from Chapter 5 for vent terminals concerning the openings found in building exterior walls.

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