Payment & Shipping Terms:
|Pressure:||315 Bar||Max. Flow:||60 L/min|
|Fluid Temperature Range:||-30 To +80 (NBR Seal)/-20 To +80 (FKM Seal) ℃|
4-way 3-position, 4-way 2-position and 3-way 2-position directional valve with mechanical, manual operation
- Direct operated directional spool valves with mechanical, manual operation
- Roller plunger
- 19 versions of spools, optional
Directional valves, type WMR/U6.. are mechanical directional spool valves with roller plunger. There are 2 position 3way, 2 position 4 way and 3 position 4 way valves with many versions of spool symbols, the roller/plunger can be rotated by 90°.
The valves consist basically of the housing (1), roller/plunger (2), spool (3), return springs (4), and pushing rod (5). In the unoperated condition, the spool (3) is held in the initial position by the return spring, while in operated condition, the spool (3) is pushed to the expected position by roller/plunger (2) conquering the return springs (4).
The use of a throttle insert is required, when, due to given operating conditions, flows can occur during the switching processes that exceed the performance limit of the valve These throttles are to be inserted into the P-channel of the directional valve.
|Fluid temperature range||℃||-30 to +80 (NBR seal)|
|-20 to +80 (FKM seal)|
|Max.operating pressure||Port A,B,P||bar||315|
|Flow cross section (switching neutral position)||Type Q||mm2||for symbol Q 6% of nominal cross section|
|Type W||mm2||for symbol W 3% of nominal cross section|
|Fluid||Mineral oil, Phosphate ester|
|Viscosity range||mm2/s||2.8 to 500|
|Degree of contamination||Maximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406|
Unit dimensions (Dimensions in mm)
1 Switched position 0 → a
2 Switched position b → a , a → 0, b → 0
3 Switched position 0 → b, a → b
6 Mounting surface
7 O-ring 9.25×1.78, for ports A, B, P and T
9 Push rod
It must be ordered separately,
if connection plate is needed.
Valve mounting screws:
Internal hexagon screw
M5×50 GB/T 70.1-10.9,
Tightening torque, MA=9Nm
must be ordered separately.