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> Inner and outer screws

It is to connect big-diameter pipe or inner thread pipe element together with outer joint through one end with outer screw thread and to make path diameter of pipe line become small, namely the connecting between big and small pipes.

>Swing adapter

Swing adapter consists of one detachable joint with inner thread, one fixed joint with inner thread and one fastening nut. When two joints with inner thread have been connected with the pipe with outer thread by turning, then turn the fastening nut to make swing adapter and pipe bind closely. Since it is easy to dismantle, it is mainly applicable to the pipe line which needs regular dismantling operation.

>UPVC pipe closer

The pipe closer of plastics-steel element is used to block pipe line to avoid leakage at the part of joint not connected with pipe yet. Besides, it can prevent miscellaneous articles entering a pipe line. Moreover, when it is necessary to add a new pipe line, it is also convenient for construction.