描述日本YUKEN單向調速閥，MPA-01-2-30    

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With the use of these valves, shockless operation either in acceleration 

These valves are pressure and temperature compensating 

With the use of these valves, shockless operation either in acceleration or deceleration can be obtained. 

With the compensator for the pressure and temperature, stable flow control can be obtained 

Recommended Viscosity and Oil Temperatures 2  Viscosity ranging between 15 - 400 mm /s 

(77 - 1800 SSU).  Oil temperatures between -15/+70°C (5 - 158°F).  Use hydraulic fluids

 which satisfy the recommended viscosity and oil temperatures given above.

 Control of Contamination Due caution must be paid to maintaining control 

over contamination of the hydraulic fluids which may otherwise lead to breakdowns and shorten

 the life of the valves.  Please maintain the degree of contamination 

independent of change in system pressure (load) and temperature (viscosity of the fluid). 

 They control flow r ate of the hydraulic circuit and eventually control speed of the actuator precisely.  

Valves with an integral check valve allow a controlled f low and reverse free flow. 

 Repeated resetting can be made easily with a digital readout.

Flow control of these valves is continuously made by a  hydraulically operated pilot 

 stable flow control can be obtained regardless of the changes 

Use fluids equivalent to ISO VG 32 or VG 46. Use phosphate ester or polyol ester fluid. 

When phosphate ester fluid is used, prefix "F-" t o the model number because the special seals 

(fluororubber) are required to be used. Use water-glycol fluid.

regardless of the changes in the pressure (load) and temperature (oil viscosity).

Petroleum base oils Synthetic fluids Water containing fluids

integral check valve allow a controlled f low and reverse free flow.  

Repeated resetting can be made easily with a digital readout.

type valves and maintain a constant flow rate independent of change in system pressure (load) 

and temperature (viscosity of the fluid).  They control flow r ate of the hydraulic

 circuit and eventually control speed of the actuator precisely.  Valves with an 

in the pressure (load) and temperature (oil viscosity).

 FLOW CONTROL (AND CHECK) VALVES-02/03/06/10 (1/4,3/8,3/4,1-1/4) FHG 

Flow Control and Check Valves ...... Page 2 These valves are pressure 

and temperature compensating type valves and maintain a constant flow rate 

piston mechanism which controls opening area of the orifice of the valve.  

Pilot Operated Flow Control 

14 Flow control of these valves is continuously made by a  hydraulically operated pilot 

piston mechanism which controls opening area of the orifice of the valve. 

Pub. EC-0301-01/02/03/06/10 (1/8,1/4,3/8,3/4,1-1/4) FG 

or deceleration can be obtained.  With the compensator for the pressure and temperature,

Up to 21 MPa (3050 PSI), 500 L/min (132 U.S.GPM)

within NAS 1638Grade 12.Use 25 μm or finer line filter.

描述日本YUKEN單向調速閥，MPA-01-2-30