Waterproof casing has certain requirements when installed indoors do not blindly install.

When the pipe passes through the wall, it needs to be waterproofed, if there is no waterproof protection is easy to have problems, may be extruded rupture or aging rust, you need to install waterproof casing can.
What is the specific role of waterproof casing? When the building settlement, through the gap between the pipe and the casing, to you make up the difference in the settlement of the pipe with the building, reduce the pressure of the building on the pipe.
Waterproof casing is also set up to avoid damage to the interior of the apartment when replacing the pipe - if not set up casing, in the above-mentioned operation, it will be in the pipeline over the wall parts, resulting in wall damage, so the maintenance is also convenient.
In the kitchen, bathroom, etc., the height of the casing should be 50mm above the living ground, and the casing of the plastic water supply pipe should be more than 100mm above the living ground. And should be sealed tightly with oil paste. Prevent water seepage, flow, flow to the role of the lower layer.
Waterproof casing through the three joints (expansion joints, settlement joints, seismic joints), in order to ensure that the pipeline is not broken, or twisted by the uneven settlement on both sides of the three joints of the building, usually, but also to set up casing. This kind of casing often has special requirements. It can be customized according to the design requirements.
Waterproof casing will have a waterproof wing ring, the two are used to complement each other, relatively speaking, is a whole, are generally directly welded on, although there are some cases are separate.