SN-4 Sectional Directional Control Valves
  • Compact construction. Low pressure drop.
  • Long service life. High efficiency.
  • Choice of various operation methods, such as manual, pneumatic, hydraulic, and electro-hydraulic.
  • Choice of various ports and circuit valves.
  • Spring return.
  • High accuracy spool is hardened for long term accuracy.
  • Sub-plate mounting.
  • Handle shift operation.

 

Nominal flow rate   80 l/min 21 US gpm
Operating pressure(maximum) parallel or tandem circuit 315 bar 4600 psi
series circuit 210 bar 3050 psi
Back pressure(maximum) on outlet port T 25 bar 360 psi
Fluid temperature range with NBR(BUNA-N) seals from - 20°C to 80°C from - 4°F to 176°F
with FPM(VITON) seals from - 20°C to 100°C from - 4°F to 212°F
Viscosity operating range from 15 to 75 mm2/s from 15 to 75 cSt
min. 12 mm2/s 12 cSt
max. 400 mm2/s 400 cSt
Ambient temperature range   from - 40°C to 60°C from - 40°F to 140°F


Note: These torques are recommended. Assembly tightening torque depends on many factors, including lubrication, coating and surface finish. The manufacturer shall be consulted.