Precautions for electric ball valve passing through the wall longitudinally. The electric ball valve mainly has the functions of shock resistance, leakage prevention and settlement prevention. The product is mainly made according to the atlas.
The following points should be paid attention to when the electric ball valve passes through the wall longitudinally: the electric ball valve pipeline needs to pass through the wall longitudinally when passing through the underground inspection shaft, which requires that the flexible electric ball valve must meet the needs of the longitudinal device during installation. In many cases, the seemingly simple operation should not be careless. Here are some measures to be taken when the flexible waterproof casing penetrates the wall longitudinally:
1. When the embedded hole of the electric ball valve is reserved on the wall, it should be greater than one fifth of the outer diameter of the flexible electric ball valve to ensure that the installation will not be impossible because the embedded hole is too small.
2. During concrete pouring, the flange pressure plate and valve seal ring shall be removed in advance to avoid the fracture of the gland and seal ring caused by too high pressure during pouring.
3. Protective measures shall be taken around the flexible electric ball valve to prevent the concrete from blocking the bolt hole.
4. After installation, because the concrete can not reach the ideal setting state in a short time, the electric ball valve shall be prevented from falling by gravity, and transverse tension devices shall be set on both sides.