1、 Hand cranked pump, hand cranked oil pump product overview:
Hand cranked pumps are suitable for pumping clean water, gasoline, kerosene, and non corrosive liquids such as iron and copper. They are not suitable for liquids containing fibers or other solid particles. The temperature of the suction liquid is below 60 ℃ (referring to the cup type pump). Its performance range: flow rate of 15-59 liters per minute, maximum head of 30 meters. Hand cranked pump | Hand cranked oil pump has a compact structure, elegant and beautiful style, and is easy and reliable to use. It only requires 1-2 people to shake the handle back and forth by hand to work. Can be used by industrial and mining, enterprises, schools, vehicles, ships and other units.
2、 EQSH hand pump model meaning:
Such as EQS-25, EQSH-25
EQ - E-Quan Brand
S - It is a leather bowl style. Suitable for sucking and delivering clean water.
SH - is a piston type. Suitable for suctioning oil liquids.
25- Pump inlet and outlet diameter

Three EQSH hand cranked pump, installation diagram of hand cranked oil pump:

EQSH series hand cranked pump, performance parameter table of hand cranked oil pump:

EQSH series hand pump, structure and working principle of hand pump:

The structure principle of EQSH type hand pump is that when the handle (29) is shaken back and forth by hand, the piston (7) moves back and forth through transmission mechanisms such as shaft (21), rocker arm (9), and connecting rod (36). As shown in the figure, when the piston moves to the left, the volume of the pump cylinder on the right end gradually expands, forming a vacuum. The liquid flows from the suction pipe (34) through the suction passage cast next to the pump body and opens the suction valve to enter the right end of the cylinder body. At the same time, the compression of the piston on the left side of the cylinder causes the water pressure valve (5) to open, and the liquid is discharged through the discharge pipe (11). If the movement direction of the piston returns to the right, the left side of the pump cylinder will suck in liquid, and the right side of the pump cylinder will discharge liquid, so as to continuously suck in and discharge the liquid. Forming the operation of the pump. The upward stroke of the pump's pressure valve is limited by the cover plate (6), and the upward stroke of the suction valve is limited by the pressure valve. The cover plate and pump body are fastened with bolts (8), and the piston stroke is limited by the pump cover (14) and pump body. For installation on walls or other foundations, the pump body has three bolt holes.
Oil pump to which the product belongsselection

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