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GB/T9251-2021 External Water Pressure Testing Machine

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November 18, 2025
Category Connection: Industrial Automation Equipment
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Tags:
#Vibration Testing Equipment #Tensile testing equipment #constant temperature and humidity incubator
Brief: Watch a dynamic demonstration of the GB/T9251-2021 External Water Pressure Testing Machine in action. This video provides a clear walkthrough of how this automated system conducts hydrostatic tests on high-pressure gas cylinders, from initial weighing to measuring volumetric residual deformation rates for safety compliance.
Related Product Features:
  • Automated testing process controlled by an industrial control computer for precision.
  • Performs complete test cycles including weighing, water filling, and hydrostatic pressure application.
  • Accurately measures volumetric residual deformation rate of gas cylinders.
  • Designed and manufactured in compliance with GB/T9251-2021 standards.
  • Uses a water jacket system to capture cylinder expansion and deformation data.
  • Suitable for regular inspection of various compressed natural gas cylinders.
  • High-pressure pump system for reliable pressurization and pressure holding.
  • Integrated water volume collection system for precise deformation measurement.
Faqs:
  • What standards does this testing machine comply with?
    The machine is designed and manufactured in accordance with the GB/T9251-2021 'Test Method for Hydraulic Pressure of Gas Cylinders' standard.
  • How does the machine measure the volumetric residual deformation rate?
    It measures deformation by placing the cylinder in a water jacket; when pressurized, cylinder expansion displaces water into a measuring cup, and the remaining water after depressurization indicates residual deformation, which is calculated as a ratio to total deformation.
  • What types of gas cylinders can this machine test?
    It is applicable for regular inspection of compressed natural gas cylinders and cylinders of various types and specifications.
  • Is the testing process automated?
    Yes, the entire testing process, including weighing, water filling, and hydrostatic testing, is controlled by an industrial control computer for accuracy and efficiency.
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