Press fittings for joining copper pipes

This approval requirement applies to metal press fittings for tensile resistance joining of annealed (R220), half-hard (R250) or hard (R290) copper pipes, with a maximum diameter of 108 mm according to GASTEC QA approval requirements 5. The press fittings shall be used for indoor and outdoor gas installations for the transport of gaseous fuels in accordance with the 2nd and 3rd family gasses according to EN 437. For indoor use the maximum operating pressure is 200 mbar, for outdoor use the maximum operating pressure is 5 bar. The applicable operating temperature is -20 to 70 °C.