This NIBCO Press System reducing copper coupling features an inboard bead and yellow HNBR O-ring. Simply applying pressure from a pressing tool tightens the O-ring onto the tube, ensuring a clean, robust seal in seconds with no flame, solder or flux. The coupling has press connections. The fitting provides a method to connect a larger size to a smaller size tube. NIBCO press fittings are the fastest, easiest way to join copper tubing systems. NIBCO PressG fittings are designed to join with seamless copper water tube in residential and commercial gas and compressed air systems. The press fittings can also be installed underground. NIBCO PressG fittings are user friendly, quick and easy to install. When properly crimped a unique "N" witness mark is clearly visible. Please refer to NIBCO technical data sheets and catalogs for engineering and installation information. NIBCO PressG fittings features a full range of precision engineered copper and copper alloy fittings, commercial valves, accessories, pressing tools, jaws and chains. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects. NIBCO PressG copper fittings are backed by a 25-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.Features Operating pressure 200 PSI max, (125 PSI for natural gas applications) depending on the application. Temperature range -40°F to 180°F ASTM B75 Alloy C12200 Copper IFGC International Fuel Gas Code NFPA 54/Z223.1 National Fuel Gas Code NFPA 58 Liquified Petroleum Gas Code UPC Chapter 12 Fuel Piping NFPA30 Flammable and Combustible Liquids Code NFPA30A Code for Motor Fuel Dispensing Facilities and Repair Garages NFPA 31 Standard for the Installation of Oil Burning Equipment (supply line only) Third party certified to ANSI LC4/CSA 6.32 Third Party Certified to IAPMO/UPC LCL-4 ICC-ES PMG 1036
