About plastic drain pipe expansion joint
The setting of the expansion joint of the transverse pipe is that the transverse branch pipe and the transverse dry pipe are connected without the confluence pipe and are connected with the vertical pipe. When the length of the pipe section is larger than 2.2M, the expansion joint is arranged at the side of the cross pipe near the confluence pipe. When the drainage tube is arranged in the inner tube, setting expansion joints in the lateral wall near the well. The other side of the expansion joint of the transverse pipe should be provided with a fixed support.
The expansion joint of the transverse tube shall not use the expansion joint of the vertical pipe, and the pressure bearing performance of the special expansion joint of the transverse tube shall not be less than 0.08MPa.
Vertical pipe expansion joint setting drainage pipe crossing part is fixed support, when the riser length is not more than 4m, should be provided with a telescopic section of each layer; when the interlayer pipe length is greater than 4m, the number of expansion joints should be calculated according to the pipe deformation and expansion joints allow the expansion amount calculation sure. The riser passes through the floor without blocking the floor, the maximum distance between the expansion joints is 4m, and the expansion joint should be fixed. A connecting pipe is arranged on the upper part of the upper part of the floor when the floor is near, and a telescopic joint is arranged above the confluence pipe. When the converging pipe is arranged at the lower part of the floor, a telescopic joint is arranged at the lower part of the confluence pipe.No horizontal pipe access in the floor, 1.0~1.2m can be located on the ground expansion joints.
The setting of the expansion joint of the plastic drain pipe is generally determined according to the requirements of the design document or the type of pipe, the mode of joint and the position of the environment.
Expansion joint, also known as telescopic joints. The long distance pipeline also has expansion and contraction when there is temperature change, in order to protect the pipeline, when the heat rises and contracts cold, the pipeline will not be damaged, and the case is guaranteed without leakageThe expansion and contraction of the pipeline play a regulating role in order to avoid the pipe being broken or cracked.
