Open hole with pressure

With pressure plugging

This technology is mainly used for the maintenance, emergency, replacement of pressure pipeline, as well as the transformation of station area.

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1. According to physical and mechanical means, plugging can be divided into hanging type plugging, bucket type plugging, folding type plugging, bag type plugging and other forms

2. Plugging is divided into stop plugging and stop plugging according to whether the medium in the pipe flows.

3, according to the different situation of the site, the process can be divided into three forms: single seal, double seal double block, four seal four block.

Pipeline operation conditions with pressure closure

1. Applicable pipe diameter and material

Medium 33~ medium 2600mm steel pipeline, casting

Pipe, ball pipe, PE/PVC pipe, etc.

2. Conveying medium

Refined oil, natural gas, water, ethylene, coal

Gas, medium oil, aviation oil, etc., without strong corrosion

3. Pipe medium temperature

Minus 30. ~+250.

4. Pipeline medium pressure

0~6Mpa Note: For high temperature, high pressure, complexity

The medium can also be used for special plugging operations.