Computer Controlled Gas Cylinder Hydro Test bench

Features

• Driven by compressed-air, No flame & spark risk

• Test medium: water

• Applicable to multiple seamless cylinders, metal cylinders, gas cylinders

• Equipped with dual water jackets

• Controlled by computer, equipped with printer to print the test report directly

• Off line test to ensure personnel safety

• Wide range of pressure & Outlet pressure can be fine regulated

Working Principle

Put the cylinder into a water jacket and pressurize the cylinder by high pressure booster pump. After reaching the preset pressure, it will automatically enter the pressure-holding state, and carry out pressure testing on the cylinder. At the same time, the gas cylinder expands under the testing pressure, and squeezes a part of the water in the water jacket into the measuring cup. This part of the water volume is the volumetric deformation of the cylinder, which is transmitted to PLC control system through the water acquisition system. After the cylinder is depressurized, the elastic deformation disappears, so the water in the measuring cup returns to the water jacket, but the remaining water in the measuring cup is still more than that before the cylinder is pressurized. The extra water is the residual volume deformation of the cylinder, which is transmitted to PLC control system through the water acquisition system.The ratio of the volume residual deformation to the total deformation is the volume residual variability of the cylinder.

Technical Parameters

• Test pressure range: 10-800 bar

• Test pressure control accuracy: not less than 10Psig

• Water level measurement accuracy: not less than 0.1g

• Test efficiency: 10～15 cylinders /hour  ( take 40L as example )

• Applicable cylinder length: 300—1700mm

• External power supply voltage: 220V

Computer Control Software Interface