ahmad alinezhad tayyebi

fajr jam gas refining co . Has a lot of high-pressure plunger reciprocating pumps. According to research done , there are also a considerable unmber of the pumps above in irans ministry of oil and other industries. Energy transfer to ghr fluid of the aforesaid pumps is done periodically while the moving force is supplied by powerful electrical motor. revolution of electrical motor is transerred to the crankcase after being decreased in the gear box. then the rotary revolution of the crankshaft is changed into reciprocating one in plungers. returning of the plunger through the inside of cylinder makes a vacuum condition and consequently the fluid enters the cylinder through a suction check valve and the movement of the plunger makes the suction close completely which discharge opens and the fluid is transferred towards a discharge vessel.