Pressure Test Pump

Pressure test pump is a testing machine for hydraulic testing (hydro test) and obtaining high-pressure liquids in the laboratory. ATO provides different type high quality test pumps for you, such as manual pressure test pump and electric pressure test pump. 2.5, 5, 10, 40 MPa pressure can be chosen in our website. Hydraulic pressure test pump applies in pipeline pressure testing and pressure vessel testing.

Differences Between Manual and Electric Pressure Test Pump

Manual pressure test pump is the main test instrument for the determination of pressure vessels and pressure equipment, the highest working pressure can reach 800 kg/mm, can correctly point out 0-800 kg/mm within any stage of the correct pressure for water pressure test. Manual hydrostatic test pump is widely used in boiler, chemical industry, light industry, construction and installation engineering, aerospace, scientific system, specialized test all kinds of pressure vessels and pressure equipment, pipe valves, rubber pipe fittings and other pressure devices for pressure test. Pressure test pump manual with small volume, light weight, convenient transportation, simple operation, easy to use, simple maintenance, widely used in coal, metallurgy, petrochemical, electric power, machinery and other industries, is a simple and convenient hydraulic power source.

Electric pressure test pump belongs to the reciprocating piston pump, the motor drives the plunger, drives the slider movement and then infuses the water into the tested object, so that the pressure gradually rises. The machine is composed of pump body, switch, pressure gauge, water tank, motor and so on. Electric hydraulic test pump suitable for water or hydraulic oil medium, pressure test on all kinds of pressure vessels, pipes, valves, etc., also used for hydraulic energy, to provide the required pressure, suitable for chemical industry, construction, plumbing, oil and coal, smelting shipbuilding and other industries. Electric hydrostatic test pump has the characteristics of compact structure, reasonable, labor saving operation, light weight, easy maintenance and rust prevention.

Pressure Test Pump Working Principle

Basic structure of the hand operated hydrostatic test pump includes the pump body, plunger, sealing ring, control valve, pressure gauge, water tank, etc. Before use, do the calibration work for pressure gauge to ensure reliable pressure coefficient.

Manual pressure test pump. When the plunger is lifted by handle, a vacuum is generated in the pump body. The inlet valve is opened, and the clean water enters pump body through the water filter and the inlet pipe. When handle is pressed down, the water inlet valve is closed, and the water outlet valve is opened to output pressure water, then enter the device under test. Work reciprocally in this way to achieve the rated pressure test.

Electric pressure test pump. The function of electric hydro test pump is to convert the mechanical energy of power machines (such as electric motors, internal combustion engines) into liquid pressure energy. The cam is rotated by motor. When the cam pushes the plunger upward, the seal volume formed by plunger and cylinder decreases. The oil is squeezed out of the sealed volume and discharged through the one-way valve. When the cam rotates to the lower part of curve, the spring forces the plunger down to form a certain vacuum. The oil in tank enters the sealed volume under the action of atmospheric pressure. The cam makes the plunger rising and falling continuously, the sealing volume periodically decreases and increases, and the test pump electric continuously sucks and discharges oil.

How to Maintain Pressure Test Pump?

• Before using the pressure test pump, check whether the connection of each component is tightened, whether the pressure gauge is normal, and whether the inlet and outlet water pipes are properly installed. It is forbidden to use dirty water containing silt and other pollutants.
• In order to improve the efficiency of pressure test, the tested container or equipment can be filled with water first, and then connected to the outlet pipe of the pressure test pump.
• In the process of pressure test, if it is found that there is a lot of air in the water, you can turn the water valve to release the air.
• In the process of pressure testing, if any slight water adulteration phenomenon is found, the work should be stopped immediately for inspection and repair, strictly prohibit to continue to increase the pressure under the condition of water adulteration.
• After the pressure test, loosen the drain valve first to reduce the pressure, so as not to damage the pressure gauge.
• When the pressure test pump is not used, it should drain the water in the pump and suck in a small amount of oil to prevent corrosion.