技術文章日本YUKEN座閥型電液換向閥
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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 fluids or W/O emulsion fluids.
Recommended Viscosity and Oil Temperatures 2 Viscosity ranging between 15 - 400 mm /s (77 - 1800 SSU).
The mounting dimensions are conformed with ISO standard
The valves are interchangeable with our conventional valves in mounting.
YUKEN's Multi Purpose Control Valves are compound valves composed of the main
Therefore, smooth starting and stopping of actuator can be done combined with using shockless type poppet.
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
within NAS 1638Grade 12.Use 25 μm or finer line filter.
Sub-plates are available. Specify the sub-plate model number from the table above.
When sub-plates are not used, the mounting surface should have a good machined finish.
Mounting Bolts Socket head cap screws in the table below are included.
had functions such as directional control, flow control or pressure control
High reliability Changeover response time is very quick as the valves are poppet type, there is no over-lap.
No hydraulic lock occurs as there is no leakage of pressurised oil from the seat parts.
Easy to reduce shock in your hydraulic system By selecting proper diameter of orifice for pilot,
the open/close timing of the flow passage can be set freely.
and Pilot Selector Valves. This valve is multifunctionalized by having individual poppet
Multi-purpose control valves The valves combine three functions of directional control,
flow control and of pilot operated check valve (or counterbalance valve).
The valves c ontribute for reducing a number of valves in applications and space for installation
and then eventually leads to reduction in size and cost of your machines. Quick response,
By adopting regenerative circuit, gaining fast feed speed by using smaller volume pump is possible.
Therefore saving electric power o f system is possible.
Noise of ON/OFF and vibration of piping in hydraulic system c an be also reduced.
Petroleum oils Synthetic fluids Water containing fluids
The Yuken Multi-Purpose Control Valves Comply with The Needs of Reducing Cost and Size of Your Machine
For regenerative circuit 4 position-4 way type, which is to compose regenerative circuit, is available.
according to the combination o f the main valve and pilot selector valve.
Oil temperatures between -15/+70°C (5 - 158°F). Use hydraulic fluids which satisfy the recommended
valve having four poppets, 1/8 Solenoid Operated Directional Valves for pilot
技術文章日本YUKEN座閥型電液換向閥
