Positive displacement hydraulic pump and its working principle

Volumetric hydraulic pumps rely on the volume of the sealed working oil chamber to work continuously. It must have one or more sealed working oil chamber, when the hydraulic pump is running, the volume of the oil chamber must continue to gradually increase from small to small, the formation of a vacuum, the tank of oil can be inhaled, when the oil chamber volume from large As the oil decreases, the oil is squeezed in the sealed working oil chamber to increase the pressure. The pressure depends on the resistance (such as the spring force of the Check Valve) when the oil is output from the pump. The pump capacity of the oil (or output flow) depends on the size of the sealed working oil chamber volume and the size and frequency changes, it is called positive displacement pump.

Check Valve

Industrial check valves are wildly used in all type of industrial pipelines, such as power stataion, petrochemical, natual gas,water treatment ect. Swing Check Valve, wafer check valve, titling disc check valve, piston check valve, disc checkvalve, lift check valve and API 602 Check Valve with ASME & DIN & EN & GOST standard are commonly used by customer. Industrial check valve we provided can cover size from 1/2 inch to 48 inch(DN15-DN1200) matching pressure from class 150 to class 2500(PN10-PN420) which are suitable for operating in the working media temperature from -196℃ to 693℃, as well as material in carbon steel, stainless steel, alloy steel and duplex steel in casting material or forging material.

Check Valve,Piston Check Valve,Pvc Check Valve,Check Disc Valve

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