Moog D680 Series - Page 33

33Rev. C, April 2017
TECHNICAL DATA Moog D680 Series Proportional Control Valves
SIZE 08 - D684 PROPORTIONAL VALVE
33
TECHNICAL DATA
Rev. C, April 2017
Moog D680 Series Proportional Control Valves
SIZE 08 - D684 PROPORTIONAL VALVE
Installation Drawing for Fail-safe Options D, F and M
1
3
Y
Y
X
11+PE
(6+PE)
2
63
(2.48)
130
(5.12)
88.5
(3.48)
226
(8.90)
57
(2.24)
14
(0.55)
8
(0.32)
13.5
(0.53)
ø
32
(1.26)
ø
6
(0.24)
ø
39
(1.54)
ø
157
(6.18)
385
(15.16)
2
(0.08)
25
(0.98)
ø
20
(0.79)
117
(4.61)
119
(4.67)
20
(0.79)
ø
20
(0.79)
125
(4.92)
Mating connector
Headroom for
disconnecting
[85]
[(3.35)]
21
(0.83)
M8
1 Electric null adjust (behind screw plug)
Attention! Electric null adjust is not possible if the position of the main spool is monitored!
2 With dampening plate
3 Transportation thread
Optional X and Y external Optional X and Y external Only X and Y external
P
BA
YX
T
TP
YX
BA
TPYX
BA
Fail-safe option D
4-way design
Fail-safe position P → A
Fail-safe option F
4-way design
Fail-safe position P → B
Fail-safe option M
2x2-way design
Defined center position by mechanical
spool stop
Flow direction according to symbol