After the pressure test of the pipeline is completed by a large-scale pipeline water pressure testing machine, it is necessary to drain the pipeline. Currently, the drainage method is to open the seal

When testing the steel pipe with a hydraulic press, it is required to seal both ends and fill the steel pipe with low-pressure water through a water filling valve before conducting a high-pressure tes

In the process of mixed pipe production, when mixing pipes with similar diameters, such as DN1400, DN1500, and DN1600, the structural design of the end face seal will inevitably have a wider sealing d

Hydraulic press is an essential equipment on the steel pipe production line, playing an important role in the quality inspection of steel pipes. Due to the fact that the water pressure value is a rapi