Technical Parameter

rated  pressure                16MPa

highest pressure                20MPa

rated flow                     160L/min

available volume               506 L

overall dimension              1700x1200X1150mm

pump model                  160SCY14-1BF

motor model                  YB2250M-6

power                                          37kw

Structure  and  Working Principle

Refer to figure

1,Oil pump is a manual and variable plunger pump, the motor drives pump shaft to rotate through elasticity shaft coupling, the absorbing oil cavity forms gradually when plunger pump running and oil flows into it under atmosphere pressure effect. The hydraulic oil flows out because of reciprocating motion of plunger pump then flows into oil circuit, at the same time the plunger pump adjusts flow rate.

2,    YF-B20 control valve is a high pressure overflow valve, the rated pressure is set as 16Mpa, when work pressure is over than 16MPa, the valve opens and a part of oil return tank that system pressure will not over the preset value for ensuring system safe.

3,    There are two outlets on the valve seat, open the ball valve of the oil circuit in that outlet is used, close the other ball valve of the oil circuit in that the outlet is not used synchronously.

Operation and Commission

1,Check up the hydraulic power system to see if it looks perfect, tight all bolts in case of loose during hoist and transport.

2, Adjust dial disc within the range from 6 to 8 before use, here the pump’s flow rate is from 96l/min to 128l/min, then tight the nut on the end of handle.(generally preset already before delivery from factory).

3,Before start the plunger pump, adjust the overflow valve to smallest value.

4,Check up the speed to see if the motor runs as the same as the plunger pump, turn on the motor, the cursor rotation of dial disc will indicate the speed, otherwise correct the wire phase of power.

5,Overflow valve ensure the working pressure of system, before starting pump it is set as “0” value. After pump started, slowly turn the handle of overflow valve till the read is 16Mpa, which acts as working pressure. suggest not adjust 20Mpa as working pressure ,which is the highest pressure of system.