The gas booster pump manufacturer develops and produces all kinds of material pipe testing machine (hydraulic testing machine), which is used for the test of water pressure, air tightness, pressure blasting and other aspects of various metal and non-metal pipes. Welcome to know!
Steel pipes under pressure, such as boiler pipes, oil pipes, casings, etc., shall be subject to hydrostatic test, and the hydrostatic testing machine is the necessary equipment for the production of pressure pipes. The hydraulic testing machine tests the ability of the pipe wall to bear pressure by injecting water, pressurizing and maintaining pressure into the pipe. From the perspective of the current hydraulic testing machine, the core technology of the high-pressure hydraulic testing machine is the sealing technology of the test head.
At present, the hydraulic testing machines used at home and abroad can be divided into radial seal and face seal. Face seal is only suitable for low water pressure test. The radial seal is adopted in the hydrostatic test (high pressure) of seamless steel pipe.
(a) ordinary outer diameter seal: expand the seal ring by water pressure, and seal the outer diameter of steel pipe; (b) pressurize the outer diameter seal of radial seal chamber: seal the outer diameter of steel pipe by external water pressure; (c) pressurize the inner diameter seal of radial seal chamber: Seal the inner diameter of steel pipe by external water pressure; (d) ordinary inner diameter seal: expand the seal ring by water pressure, and seal the inner diameter of steel pipe; (E) end face seal: compress by external force Seal ring to achieve end face seal.
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