PIPE JOINT FOR VACUUM SEWERAGE

摘要

PURPOSE: To easily insert a test ball from an inspection port in the case of a vacuum degree test. CONSTITUTION: In a pipe joint 16 for a vacuum type sewerage which is arranged an the way to pipe line 4 and into which a test ball is inserted from a inspection port 16B so as to perform a vacuum degree test for the pipe line 4, a test ball introduction part 16C for diagonally connected from the inspection port 16B to a rectilinear pipe connection part 16A for coupling between pipe lines 4 is provided. A connection opening 16D of a connection base 16C-2 of the test ball introduction part 16C is provided with such an internal shape as being enlarged toward the front/rear direction of a pipe connection part 16A into which a test ball 17 is dropped in loading the test ball 17, compared with the top part 16C-1 of the test ball introduction part 16C.