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油研日本全新座閥型電磁換向閥選型依據
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by the conventional spool type directional valves because of too much internal leak of pressure oil.
 The use of the low viscosity hydraulic fluids reduces the pressure loss
This makes it possible to use these valves in combination with 01 Series Modular Valves.
High Response High Reliability Because these valves are of poppet type, there is no overlap,
 high response can be achieved.  At the same time, hydraulic lock is eliminated.                        
Changeover Time Changeover time varies according to hydraulic circuit of the model actually used
 and conditions.An example of measurement is given in the figure below.
Take care as the operating force by the manual actuator increases
These are Solenoid Operated Directional Valves of No Leak Type developed
Petroleum oils Synthetic fluids Water containing fluids
Use fluids equivalent to ISO VG 32 or VG 46. Use phosphate ester or polyol ester fluid.
No Leak Sheet type seal has been adopted and internal leak is greatly reduced.
ISO Comformant Mounting Surface Because the mounting surface conforms to ISO 4401-AB-03-4-A,
there i s an interchangeability with the conventional valves. 
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 within NAS 1638Grade 12.  Use 25 μm or finer line filter.
which can a rise from the passage resistance of the hydraulic fluids, leading to the system energy saving.
in proportion to the tank line back pressure.(See the graph right.)
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.0
Japanese Standard "JIS" and European Design Standard  N. American Design Standard
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
with the aim of responding the demand of the a ge including energy saving. 
Because these valves are of no leak type they allow the low viscosity hydraulic
fluids to be u sed as well as the circuit construction which cannot be used

油研日本全新座閥型電磁換向閥選型依據