IP67 PLUG STRUCTURE

Talking about waterproof industrial socket and plug, there are two main categories for sale: IP44 and IP67. Besides the different grades of waterproof capability, another minor difference between the two types lies in the outer dimension, the design of the pin, the slot diameter. The IP67 plug consists of shell, ring, seal, pin, grip, cable clamp, cable seal, screw, etc. the structure diagram of an IP67 industrial plug.  For IP67 and IP44 industrial socket and plug, they have basically the same structure, except for the shell, the section rind, and the sealing ring. The shell is designed as protection and enclosure for the pins inside. It is connected with the handler. The most important property for the shell is its waterproof performance. The handler, which is connected with the shell, is the other shell part for an industrial plug. The surface is designed with non-slip stripes. At the tail end, there is a cable entry. According to the IP67 standard, the cable entry is reinforced with thread cover, metal washer, and rubber sealing ring. It is the key part of an IP67 industrial plug. The lock ring can be freely rotating around the shell while the fixing tooth protects the lock ring from falling off. The sealing ring plays the main role in water protection. Normally it is made of rubber or other elastic material. In an IP67 industrial plug, three sealing rings are used:
(a) the sealing ring used between the socket
and plug insertion surface.
(b) the sealing ring used between the shell
and the handler.
(c) the sealing ring used for the cable.