Features of Directional control valves Mechanical Operation:
-direct operated directional spool valve with adjustable roller operation
-roller lever assembly may be stepped in 90°
-radial forces absorb reliably (up to 30°)
-19 kinds standard spool function
Functional description of Directional control valves Mechanical Operation:
Directional valves type WMR are roller operated directional valves.They basically consist of the housing (1), the roller lever (3), the control spool(4).
A plug-in throttle is required if flow greater than the permitted valve may occur while the valve spool is being from one position to another. The plug-in orifice is fitted in the P port of the directional valve.
Section of Directional control valves with Mechanical Operation type WMR6
Ordering details of Directional control valves with Mechanical Operation
Technical data
Size | 6 | 10 | ||
Max. operating pressure port A, B, P (Mpa) | 31.5 | |||
Port T Mpa | To 6 | To 16 | ||
For symbols A and B, the T port must be used as a drain connection if the operating pressure is above the pressure permitted at the T port | ||||
Max. flow L/min | To 60 | To 120 | ||
Flow cross section | For symbol Q, 6% of nominal cross section | |||
control position 0 | For symbol W, 3% of nominal cross section | |||
Pressure Fluid | Mineral oil or Phospate ester | |||
Temperature range ℃ | -30~+80 | |||
Viscosity range mm²/s | 2.8~500 | |||
Weight kg | Approx 1.4 | Approx 3.3 | ||
Operating force at roller lever N | At zero tank pressure | Approx 100 to 121 | 2-way valve | Approx 70 to 140 |
At a pressure | Approx 184 to 205 | 3-way valve | Approx 70 to 175 | |
