4-way 3-position, 4-way 2-position and 3-way 2-position directional
valve with mechanical, manual operation
Type WMR(U)6...L6X
Features
- Direct operated directional spool valves with mechanical, manual
operation
- Roller plunger
- 19 versions of spools, optional
Function
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).
Cartridge throttle
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.
Specifications
Symbols
Technical data
| Fluid temperature range | ℃ | -30 to +80 (NBR seal) |
| -20 to +80 (FKM seal) |
| Max.operating pressure | Port A,B,P | bar | 315 |
| Port T | bar | 60 |
| Max. flow-rate | L/min | 60 |
| 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 |
| Weight | kg | 1.4 |
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
4 Pin
5 Nameplate
6 Mounting surface
7 O-ring 9.25×1.78, for ports A, B, P and T
8 Roller
9 Push rod
It must be ordered separately,
if connection plate is needed.
Type :
G341/01(G1/4),G341/02 (M14×1.5)
G342/01(G3/8), G342/02(M18×1.5)
G502/01(G1/2), G502/02(M22×1.5)
Valve mounting screws:
Internal hexagon screw
M5×50 GB/T 70.1-10.9,
Tightening torque, MA=9Nm
must be ordered separately.
