A CONNECTOR FOR ALUMINUM-CLAD PIPE EXPANDED AT THE END AND CONNECTING METHOD OF ALUMINUM-CLAD PIPE EXPANDED AT THE END USING THE CONNECTOR

摘要

PURPOSE: A connection device of aluminum-coated pipe, with an expanding pipe, and a connection device using the same are provided to improve the sealing force and to prevent the leak of gas through the connection area. CONSTITUTION: A connection device of aluminum-coated pipe comprises a connection body(10), a fixed cap(20), and a sealing ring(30). The connection body has a tapered surface which contacts with the inner circumference of the expanding pipe. The fixed cap has a female screw part screwed in a male screw part of the connection body on the inner circumference. The sealing ring is included of a backend narrow diameter part which is formed along the outer circumference.