What are the characteristics of each of the three types of rigid waterproof casing?

Rigid waterproof casing is a very common pressure-bearing part of the pipeline through the wall, installed on the pipeline to protect the pipeline operation through its own active pressure-bearing. Rigid waterproof casing is a steel pipe plus a wing ring, installed in the wall, for general piping through the wall, to facilitate the waterproofing of the wall.
In order to meet the needs of various industries, we luoying pipeline will be waterproof casing into three types.
A type of rigid waterproof casing has three parts, wing ring, steel casing and baffle plate, the role of steel casing is to protect the pipe through the wall from damage, and the role of the wing ring is to fix the installation position of the steel casing as well as to protect the steel casing from damage by the wall lying down, the role of the baffle plate is used to block the filler, so that the filling position of the filler to ensure, but also to control the consequences of irregular movement of the filler In turn, the amount of filler is controlled to make its sealing performance better.
The difference between B-type rigid waterproof casing and A-type is that there is no baffle, and B-type waterproof casing does not lose its efficiency because of less baffle, on the contrary, after installation in the corresponding area, B-type rigid waterproof casing has a great working capacity.
The difference between Type C rigid waterproof casing and Type B is that Type C has less of a wing ring. The waterproof casing that lacks the wing ring is generally installed in ordinary walls and still functions to protect the pipes and lines that pass through the walls.