Rigid waterproof casings can be widely applied in pipeline systems such as water supply and drainage, circulating water, heating, ventilation and air conditioning (HVAC), fire protection, papermaking, pharmaceuticals, petrochemicals, ships, water pumps, compressors, and fans. Below, the editor from the waterproof casing team will explain to you why rigid waterproof casings are used in water pumps.
When a pipeline with a rigid waterproof casing passes through walls or floor slabs, metal or plastic casings shall be installed. For casings installed inside floor slabs:
· Their top ends shall be 20 millimeters (mm) higher than the finished floor surface.
· For casings installed in bathrooms and kitchens, their top ends shall be 50 mm higher than the finished floor surface, and their bottom ends shall be flush with the bottom surface of the floor slab.
For casings installed inside walls, both ends shall be flush with the finished wall surface. The gap between the pipeline and the floor slab it passes through shall be filled with flame-retardant dense material and waterproof ointment, ensuring a smooth end surface. The gap between the wall-penetrating rigid waterproof casing and the pipeline should also be filled with flame-retardant material and waterproof ointment, with a smooth end surface. Additionally, the pipe joints must not be placed inside the casing.
When a pipeline with a rigid waterproof casing passes through an external wall, waterproofing measures shall be adopted. For buildings with strict waterproofing requirements, flexible waterproof casings must be used. When the pipeline passes through expansion joints or seismic joints:
· Flexible connections shall be installed on both sides of the wall;
· A clear space of not less than 150 mm shall be reserved above and below the pipeline on both sides;
· An expansion joint shall be installed at the wall-penetrating position.
The above is the relevant knowledge about how rigid waterproof casings are used in water pumps, introduced by the editor from the waterproof casing team. We hope it is helpful to you. For other questions, please feel free to consult us.
