NACHI-FUJIKOSHI CORP.

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Main text

PVS Series Piston Pump

• Features
• Application
• Specifications

Pump type	Capacity (cm3/rev)	Maximum working pressure (MPa)	Rotational speed (min-1)		Mass (kg)
			Minimum	Maximum
PVS-0B-8	8	25	500	2000	7.7
PVS-1B-16	16.5	25	500	2000	10.5
PVS-1B-22	22	25	500	2000	10.5
PVS-2B-35	35	25	500	2000	21
PVS-2B-45	45	25	500	2000	21

Control options: 6 options including pressure compensation control

Various control options enable circuit simplification and energy saving.

Control system	Symbol	Features	Characteristics
Pressure compensation type (manual)	N	Discharge amount automatically decreases to maintain the set pressure when discharge pressure reaches the value specified in the compensator.
Pressure compensation type (remote control)	P	Provides the same features as those for the manual system. Discharge pressure can be remotely controlled with an external pilot pressure.
2-pressure, 2-flow control type	NQ	Discharge pressure can change by two levels through the sequence valve embedded in the pump; therefore, one unit can perform conventional high/low pressure control and circuit energy can be saved.
Solenoid cutoff control type	RS	Solenoid valve for unloading is mounted on the pressure compensation type model, with the aim of minimizing energy loss when hydraulic pressure is not necessary.
2-pressure control type	WS	Two types of pressure compensation are obtained by turning on/off the solenoid valve embedded in the pump. The two kinds of output can be controlled while maintaining a constant actuator speed.
2-pressure, 2-flow control type with solenoid cutoff	RQS	Unload function is added to the 2-pressure, 2-flow control type, to enable unloading with the solenoid valve embedded in the pump when hydraulic pressure is not necessary.
2-cutoff control type	CS	Two kinds of pressure and flow characteristics can be obtained with the solenoid valve embedded in the pump and the discharge control mechanism.