Product Overview - Moog D680 Series Manual

introduction introduction

Product overvieW

Product overvieW
the moog d680 series proportional control valves are
throttle valves for 2-, 3-, 4- and 5-way applications. these
valves are suitable for electrohydraulic position, velocity,
flow or force control systems, including those with high
dynamic response requirements. this product family is
equipped with integrated electronics and closed-loop
spool position control.
the d680 is a two-stage valve with a d633 direct
drive valve as a pilot stage. the d633 pilot valve is
characterized by its high dynamics and very low leakage.
it is suited for very high dynamic requirements, while
offering outstanding efficiency. the very high pressure
efficiency of the d633 series makes it the first choice for
applications involving low pilot pressures.
with a robust, proven design the moog d680 series
provides reliable control for injection and blow molding
equipment, die casting machines, presses, heavy industry
equipment and paper and lumber processing machinery
as well as other applications. this product family is easily
integrated and configurable to meet your exact application
and performance requirements. with a long legacy in
hydraulic motion control and application expertise, moog
experts can help you select the version that best meets
your needs.
for applications with safety requirements, a fail-safe
option is available that guarantees a defined safe spool
position to avoid potential damage.
Valve design
size according
to iso 4401
Mounting
pattern
rated flow at
Δp
5 bar (75
n
psi)/spool land
Maximum
flow
1)
Maximum
operating
pressure
- port P, a, B
step response
time for 0 to
100 % stroke
1) for recommended mean flow velocity of 30 m/s
rev. c, april 2017 rev. c, april 2017
D681 D682
2-stage, pilot-operated
05 07
iso 4401-05-05-0-05 iso 4401-07-07-0-05
with t
1
30/60/80/2 x 80 l/min 150/250 l/min
(7.9/15.9/21.1/ (39.6/66 gpm)
2 x 21.1 gpm)
180 l/min (47.6 gpm) 600 l/min (158.5 gpm)
350 bar (5,000 psi)
11 ms 11 to 13 ms
moog d680 series proportional control valves moog d680 series proportional control valves
D683 D684 D685
08 10
iso 4401-08-08-0-05 iso 4401-10-09-0-05
350 l/min 550 l/min 1,000 l/min
(92.4 gpm) (145.3 (264.2
gpm) gpm)
1,100 l/min 1,500 l/min 3,600 l/min (951 gpm)
(290.6 (396.3
gpm) gpm)
10 to 12 to 35 ms
18 ms 27 ms
1,500 l/min
(396.3
gpm)
40 ms
3 3