Moog D680 Series - Page 13

13Rev. C, April 2017
TECHNICAL DATA Moog D680 Series Proportional Control Valves
SIZE 05 - D681 PROPORTIONAL VALVE
13
TECHNICAL DATA
Rev. C, April 2017
Moog D680 Series Proportional Control Valves
SIZE 05 - D681 PROPORTIONAL VALVE
Installation Drawing for Fail-safe Options D, F and M
1
X Y
11+PE
(6+PE)
2
3
64.5
(2.54)
74
(2.91)
79.6
(3.13)
176
(6.93)
31
(1.22)
1.3
(0.05)
15.7
(0.62)
6 x ø
18.7
(0.74)
ø
68.8
(2.71)
6.5
(0.26)
ø
10.5
(0.41)
ø
248
(9.76)
238
(9.37)
20
(0.79)
125
(4.92)
[85]
[(3.35)]
Mating connector
Headroom for
disconnecting
258
(10.16)
10
(0.39)
20
(0.79)
21
(0.83)
258
(10.16)
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 With end cap for spring centering B → T
Optional X and Y external Optional X and Y external
“P1” port equal to port “T1”
“P1” does not conform to ISO 4401
Only X and Y external
TP
BA
2
T
YX
TP
YX
BA
1
P
YX TP
BA
1
T
Fail-safe option D
4-way design
Fail-safe position P → A
Fail-safe option F
5-way design: Port P
1
required
Fail-safe position A → T
Fail-safe option M
2x2-way design: A second tank port T
1
required
Flow direction only according to symbol