figure at the crime scene

Product Introduction:

1. If 20-1000UPVC water supply pipe or PVC-M water supply pipe four-way pipe fittings are leaking, wrap the entire four-way to repair and stop the leak;

2. If PE pipe, PP-R pipe, PE steel-plastic composite pipe, ABS pipe and other four-way pipe fittings are leaking, wrap the entire four-way to repair and stop the leak;

3. You can also customize any length, any specification, any Equal Cross Pipe Repair Clamp, and any Cross Pipe Repair Clamp with different diameters

Analysis of the causes of leakage in four-way pipes:

Poor centering: There are serious misalignments or gaps in the pipe or flange connection, and forced tightening leads to stress concentration and leakage.

Welding defects: Improper welding process and improper post-weld treatment lead to unfused welds, pores, slag inclusions, cracks, etc.

Improper sealing surface treatment: The sealing surface is not cleaned before installation, and the sealing surface is damaged and not treated.

Incorrect gasket installation: gaskets are placed off-center, reversed, double gaskets are used, gaskets are cut or scratched, and are not aligned with bolt holes.

Improper bolt tightening: Failure to use a torque wrench for cross-, symmetrical, and step-by-step tightening as required by the specification results in insufficient or uneven preload. Bolts are not lubricated or lubricated improperly. Missing bolts or insufficient bolt length.

Threaded connection problems: Uncleaned threads, improper or insufficient/excessive winding of sealing materials, insufficient or excessive tightening.

Insufficient pipe support: Improper support position, insufficient number, or loose fixation, resulting in excessive vibration of the pipeline system or stress transmission to the cross-connection.

Water hammer/steam hammer: The sudden start and stop of the fluid or the change of flow direction produces a huge impact force, which may instantly exceed the design pressure or cause severe vibration.

Corrosion: Chemical or electrochemical corrosion of the medium on the pipe body, welds, flange sealing surfaces, bolts, or gaskets. The external environment may also corrode the connection parts.

Vibration: Continuous vibration caused by nearby equipment (pumps, compressors) or the fluid flow itself, leading to loose bolts, fretting wear of gaskets, and fatigue cracking of welds.

Thermal cycling: The system undergoes repeated heating and cooling processes, causing flange connections to expand and contract, causing bolt stress relaxation or gaskets to lose elasticity.

Changes in media properties: During operation, the media composition, temperature, pressure, etc. exceed the original design range.

Field drawing