Pressure opening is common in pipeline maintenance and repair technology. It is suitable for many fields with safe, environmental protection, economic and efficient technology, such as crude oil, refined oil, chemical medium, natural gas and other media pipeline normal maintenance and transformation and emergency repair (such as pressure repair, replacement of corroded pipe section, installation of devices, distribution and transformation, etc.).

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This technique is a method of making interfaces on pipes and containers that are under pressure or in use when opening holes. Add branch pipe, with D input or output material set temperature probe monitoring point for equipment (plugging equipment) to provide connection point, no need to stop production when opening does not affect the output and material supply. Petrochemical industry: hydrocarbon - crude oil and heavy oil light oil, diesel, kerosene, oil, oil inflammable explosive toxic gas and many chemical products. Opening plugging: It is a plugging industry of the four plugging industries, all known as "no fire, no production fast with pressure opening plugging industry" abbreviated as opening plugging industry or opening plugging, opening plugging industry mainly with pressure opening, with pressure plugging, with pressure cutting pipe "three technologies, more than 20 kinds of appliances and products.