Publ. MHV...K-E-06/07
MHV PROPORTIONAL DIRECTIONAL CONTROL VALVE
Manual operation
Sizes 12, 16, 20, 25, 32
Series MHV...K
FEATURES
* The load independent output flow is proportional
to the input signal (lever position).
* The pump pressure always corresponds to the
user pressure, +3,6,8 or 12 bar (43, 86, 114 or
172 psi) Dp compensator.
* The built-in pump-unloading valve results in:
- very low power turned into heat;
- minimum loading of the prime mover.
* User speed is precisely controlled under all load
conditions.
* Progressive regulating curve; no pressure peaks
when switching; sensitive control even for
alternating pressures.
* Constant working speed of differential cylinders
at the different regulating flow to the valve by
grinding angle.
* Constant recirculation pressure independent of the
number of units.
* Any limiting of flow for every user port.
* Proportional directional control valves also
available as:
· Hydraulic proportional series MOV and
· Electrical proportional series MEV.
Any combination of these control options is
possible.
* The sandwich system allows a construction up
to 8 control valves.
* Electrical pressure cut off at port A, B or A and
B, available on request.
2
Operating pressure (P,A,B) ...350 bar (5000 psi)
Maximum return pressure (T):
- aluminium endcaps 15 bar (214 psi)
- cast iron endcaps 30 bar (428 psi)
Dp compensator 3; 6; 8 or 12 bar (43; 86; 114 or 172 psi)
Pressure setting range 5...350 bar (72...5000 psi)
Flow range ...800 l/min (...211 USgpm)- with 32 cSt at 40°C
Fluid Mineral oil according to DIN 51524/51525
Fluid temperature range -35...+80°C (-31°...+176°F)
Viscosity range 2,8...380 cSt, optimal 30 cSt
Contamination level max. according to NAS 1638 Class 9 or ISO 18/15
Mounting position optional
Lever, std. Stainless steel
Size working ports: MHV12 : 1/2" BSP (SAE optional)
MHV16 : 3/4" BSP (SAE optional)
MHV20 : 1" BSP (SAE optional)
MHV25 : 1 1/4" BSP (SAE optional)
MHV32 : 1 1/2" BSP (SAE optional)
Max. flow in l/min. (USgpm) related to the Dp in bar (psi) over the compensator, per nominal bore:
TECHNICAL DATA
3 (43)
1
) 6 (86) 8 (114) 12 (172)
2
)
MHV12 50 (13) 80 (21) 90 (24) 100 (26)
MHV16 100 (26) 140 (37) 155 (41) 180 (47)
MHV20 160 (42) 225 (59) 250 (66) 300 (79)
MHV25 250 (66) 350 (92) 390 (103) 500 (132)
MHV32 400 (106) 500 (132) 550 (145) 800 (211)
Size
∆p compensator lever force
[N] lbs
2.2 - 4.9
40 - 8.9
33 - 7.4
56 - 12.6
80 - 18.0
P
A
P
P
A
P
A
A
P
a
A
T
B
T
T
B
T
B
B
T
b
0
B
Spool
Symbols Operation Characteristic
A
In neutral position all
4/3 way
ports blocked
3
)
4/3 way
B In neutral position,
A - T,
20% of nominal
4/3 way
C
A+B - T,
In neutral position,
20% of nominal
4/3 way
D
B - T,
In neutral position,
20% of nominal
4/2 way
E
70% of nominal bore
P - B and A - T,
3/2 way
O
3/2 way
4/3 way
M
(3/3)
K
4/2 way
4/2 way
G
F
B
T
T
P
A
P
B
B
B
B
T
T
T
P
A
P
A
P
A
A
port T leakage flow
3
)
Port B out of function
P-B,
Port A out of function
position a additional
3
)
Port A out of function
In neutral position,
A+B - T,
In neutral position all
ports blocked
3
)
20% of nominal
types
bore
3
)
bore
3
)
bore
3
)
bore
3
)
70% of nominal bore
Operation CharacteristicSymbols
types
Spool
a
0
b
X
X
X
1
) Standard
2
) Due to loss of pressure c.q. energy conversion into
heat, we recommend the next largest series.
3
) Recirculation at low pressure only with MUV
3
DESCRIPTION
Conventional directional control valves control start, stop and directions of movement from hydraulic motors
and cylinders. However, the speed of these users depends on the load pressure. If this load pressure varies, the
speed is hardly controllable (figure 1)
The AMCA proportional directional control valves are pressure compensated and achieve an ideal control of
force, speed, acceleration and deceleration, independent of the load and increased demands (figure 2)
The pressure compensator could be a pressure relief valve (MUV) or a pressure reducing valve (MDM), together
with the throttling function of one or more directional control valve spools. This compensator acts as a by-pass
(3-way) flow control valve (with MUV) or as series (2-way) flow control valve (with MDM).
See figures 3 and 4.
100
90
80
70
60
50
40
30
20
10
100
0
20 4030 50 7060 80 10090
Load 235 bar (3357 psi)
Load 185 bar (2643 psi)
Load 5 bar (71 psi)
Load 245 bar (3500 psi)
Load 1 to 350 bar (14,29 to 5000 psi)
0
20
10
40
30
50
60
70
80
90
100
010 3020 40 8050 60 70 90 100
Advantages of the AMCA Proportional Directional Control Valves:
The shape of the AMCA proportional directional control valve spool differs from the conventional one.
The result is a progressive flow curve (figure 5). To make optimal use of the maximum stroke of the spool the
flow angles of the A and/or B port can be defined for the different flows. For a constant flow, the pressuredrop
over the orifice of the spool remains constant, independent of the load pressure (figure 6).
MUV
T
control valves
directional
one or more
A/B
P
one or more
directional
control valves
P
A/B
MDM
Pressure diff.constant
350 (5000)
280 (4000)
210 (3000)
140 (2000)
(43, 86, 114 or 172 psi)
Recirculation pressure 3,6,8 or 12 bar
70 (1000)
0
0
Loadpressure
Pumppressure
100204030 50 7060 80 90 100
0
10
20
30
40
50
60
70
80
100
90
Stroke % (leverposition)
Flow %
Time
Pressure bar (psi)
Fig. 1
Control range %
Flow %
Control range %
Flow %
Fig. 2
Fig. 3 Fig. 4
Fig. 5 Fig. 6
4
Functioning of the by-pass (3-way) flow control
valve (with MUV)
(this type is used in combination with fixed
displacement pumps) (fig. 7 and 8)
The AMCA-MUV has three functions:
1. Energy saving
If the directional control spools are in neutral position
(spool 1 in fig.7), and the pump is running, the
pressure relief valve 1 (MUV) opens at low pressure
(depending on the spring 3, 6, 8 or 12 bar (43, 86,
114 or 172 psi)).
P and T are connected. The power (pxq
v
) turned into
heat is very low.
The spring chamber is connected, via the “load-
pressure check back system”, to T (tank).
(example fig.26)
2. Load independent flow control
(acting as a 3-way flow control valve)
If one directional control spool is actuated (spool 2
in fig. 7, where P is connected to B2), the load-
pressure is connected to the spring chamber of the
MUV. The left part of the “load pressure check back
system” is closed by spool 2. The load-pressure
added to the spring-equivalent pressure is in balance
with the pressure at P. Therefore the Dp over the
directional control valve remains constant (3, 6, 8 or
12 bar (43, 86, 114 or 172 psi)).
As q
v
= k. Dp, the flow remains constant, at a given
opening of port B2, independent of the load-pressure.
The output (flow) is proportional to the input signal
(displacement of spool).
The unnecessary pumpflow returns to tank.
3. Adjustable maximum load pressure
The maximum load-pressure can be restricted by the
adjustable relief valve 2.
Functioning of the series (2-way) flow control valve
(with MDM)
(this type is used in combination with variable
displacement/pressure compensated pumps,
(example fig. 9 and 10) or accumulator
circuits.(example fig. 27)
The AMCA-MDM has three functions:
1. Energy saving
If the directional control spools are in neutral position
(spool 1 in fig. 9) and the pump is running, the pressure
OPERATION
reducing valve MDM (normally open) tends to close
(is balancing).
The pressure controls the pump-capacity to a
minimum. Again the power (p x q
v
) turned into heat is
very low.
The spring chamber is connected, via the “load-
pressure check back system” to T (tank).
2. Load independent flow control
(acting as a 2-way flow control valve)
If one directional control spool is actuated (spool 2
in fig. 9) MDM-orifice throttles the flow and reduces
the pressure. This reduced pressure is connected to
B2.
The left part of the “load pressure check back system”
is closed by spool 2. The load pressure added to the
spring-equivalent pressure (3, 6, 8 or 12 bar (43, 86,
114 or 172 psi)) is in balance with the reduced
pressure.
Therefore the Dp at flow angle 2 remains constant
(3, 6, 8 or 12 bar (42, 86, 114 or 172 psi)). As q
v
=
k. Dp, the flow remains constant at a given opening
of port B2, independent of the load pressure.
The output (flow) is proportional to the input signal
(displacement of spool).
There is no unnecessary pumpflow (pump capacity
is controlled by pressure).
3. Adjustable maximum load pressure
The maximum load pressure can be restricted by
the adjustable relief valve 2.
Functioning of the by-pass (3-way) flow control
valve (with MUV/R)
(this type is used if there is a need to use the MUV
as a sequence valve)
(fig. 11 and 12)
The function is the same as described in clause 1
(fig. 7). The return bore is blocked (as in fig. 9). There
is an additional possibility of directing the pumpflow
from P to R (fig. 12) to feed another circuit up to 350
bar. (Example fig. 24)
Note: (1)
If the systempump is of the load sensing
type. no compensator is required (example
fig. 28).
(2)
For simultanious operation of te proportional
directional control valve, independent of
loadpressure, we advice a pressure
compensator for each control valve.
For flows < 200 l/min. (53 USgpm) per
control secton, the MFC stacked valves are
a good alternative in this case. (see Publ.
F12/F18K)
5
OPERATION
another circuit
Spool 2
B2
End plate
A2
MDM orifice
Pressure relief valve 1 (MUV)
Pressure relief valve 1 (MUV/R)
Reducing valve (MDM)
0
M
Inlet plate
Spring chamber
B1
T
P
A1
spool orifice
T1
End plate
Load-pressure check back system
Adjustable relief valve 2
Spool 1
Damping-screw
B1B2
A1A2
spool orifice
another circuit
R
P
Spring chamber
Inlet plate
Damping-screw
Load-pressure check back system
Spool 1Spool 2
Adjustable relief valve 2
Adjustable relief valve 2
Load-pressure check back system
T1
B2 B1
End plate
A2 A1
P
Spring chamber
Inlet plate
Spool 1Spool 2
Damping-screw
P
A1
B1
P
T
T
A1
B1
A2
B2
A2
B2
A1
RTP
B1
A2
B2
Fig. 9 Series flow control valve
Fig. 10 With MDM
Fig.7 By-pass flow control valve
Fig. 8 With MUV
Fig. 11 By-pass flow control valve
Fig. 12 With MUV/R
6
Functioning of the proportional directional control valve with lever control (see fig. 13 and 14)
- The handle mechanism and the return springchamber of the directional control spool are both provided with the
used hydraulic fluid. This gives a perfect lubrication on the ball (fig.13) or rack and pinion (fig. 14) construction
for fine control of the handle mechanism.
- The return pressure acts on both sides of the directional control spool. For every valve both chambers at both
sides of the spool are connected to each other and connected to T by an orifice, this prevents spool movements
caused by pressure peaks in the return line during operation.
- The directional control spool is fully balanced for perfect control. Shifting of the spool, if the pressure rises
during reverse running, is therefore not necessary.
- If the directional control spool 2 (in fig. 15) moves out of the neutral position, the pressurised working port B2
is connected to the “load pressure check back” system before this port is connected to P.
The load pressure check back system remains connected to the spring chamber of the MUV, MDM, or to the
L.S. port of the load sensing pump.
OPERATION
Strokelimiter port A
B
A
B
A
Strokelimiter port B
P B
P A
P B
P A
MHV 12 K MHV 16/32 K
Fig. 13
Fig. 14
7
DIAGRAMS
Flow P A/B
with min. spoolangles to max. spoolangles
with 3,6,8 or 12 bar spring
with max. spoolangles
Flow P A/B
8 bar (114 psi)
3 bar (43 psi)
6 bar (86 psi)
12 bar (172 psi)
min.
max.
(43, 86, 114 or 172 psi )
100
90
80
70
60
50
40
30
20
10
Flow %
0
Stroke %
100
90
80
70
60
50
40
30
20
10
Flow %
0
5020010 3040 8060 70 90 100 5020010 3040 8060 70 90 100
Stroke %
Spool angles
Spring 3,6,8 or 12 bar
B2 B1
T
P
A2 A1
Spool 2 Spool 1
(43, 86, 114 or 172 psi)
Load-pressure check back system
Damping-screw
Adjustable relief valve 2
Inlet section
Pressure relief valve 1 (MUV)
Fig. 15
8
DIAGRAMS
0
0
50 100 150 200
3 (43)
6 (86)
9 (129)
12 (172)
3 bar (43 psi)
6 bar (86 psi)
8 bar (114 psi)
12 bar (172 psi)
MUV-12
(13.2) (26.4) (39.6) (52.8)
MUV-16
12 bar (172 psi)
8 bar (114 psi)
6 bar (86 psi)
3 bar (43 psi)
9 (129)
3 (43)
0
6 (86)
12 (172)
(26.4)
0
(13.2)
50 100
(39.6)
150
(52.8)
200
400300
MUV-20
(79.2) (105.6)
12 bar (172 psi)
8 bar (114 psi)
6 bar (86 psi)
3 bar (43 psi)
9 (129)
3 (43)
0
6 (86)
12 (172)
0
(26.4)
100
(52.8)
200
400 600
MUV-25
(52.8)
200
(105.6) (158.5)
12 bar (172 psi)
8 bar (114 psi)
6 bar (86 psi)
3 bar (43 psi)
9 (129)
6 (86)
3 (43)
0
12 (172)
0
3 bar (43 psi)
6 bar (86 psi)
12 bar (172 psi)
8 bar (114 psi)
800
15 (214)
18 (257)
21 (300)
24 (343)
MUV-32
(211.4)
3 (43)
6 (86)
9 (129)
12 (172)
0
0
(52.8)
200
(105.6)
400
(158.5)
600
Flow l/min. (USgpm)
Dp bar (psi)
Flow l/min. (USgpm)
Dp bar (psi)
Flow l/min. (USgpm)
Dp bar (psi)
Flow l/min. (USgpm)
Dp bar (psi)
Flow l/min. (USgpm)
Dp bar (psi)
Free recirculation pressure P T
MUV with 3, 6, 8 or 12 bar spring (43, 86, 114 or 172 psi).
9
DIAGRAMS
A1-T
MHV-25
25 (357)
MHV-12
A1-T
20 (286)
15 (214)
10 (143)
∆p bar (psi)
5 (72)
0
0
A6-T
B6-T
50
Flow l/min. (USgpm)
B1-T
80
A1-T
MHV-16
0
0 100 140
A6-T
B6-T
B1-T
0
0
MHV-20
A6-T
A1-T
B6-T
B1-T
225160
A1-T
0
0
MHV-32
A6-T
B6-T
400
B1-T
560
0
0
250
A6-T
B6-T
B1-T
350
max. spoolopening A/B T
Measured with C-spool and
T
B1 B2 B3 B4 B5
Including couplings.
Viscosity 32cSt.
P A1A2A3A4A5
B6
A6
(13.2) (21.1)
5 (72)
10 (143)
15 (214)
20 (286)
25 (357)
30 (429)
(26.4) (37)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
Flow l/min. (USgpm)
(42.3) (59.4)
5 (72)
10 (143)
15 (214)
20 (286)
Flow l/min. (USgpm)
(66.1) (92.5)
5 (72)
10 (143)
15 (214)
20 (286)
Flow l/min. (USgpm)
(105.7) (147.8)
∆p bar (psi)
∆p bar (psi)∆p bar (psi)
∆p bar (psi)
Pressure drop A/B T
With MUV or AN
10
DIAGRAMS
MHV-16
MHV-25
MHV-12
A1,B1-T1
A2,B2-T1
MHV-20
0
050
A3,B3-T1
A4,B4-T1
A5,B5-T1
A6,B6-T1
80 90
0
0
A1,B1-T1
A2,B2-T1
A3,B3-T1
A4,B4-T1
A5,B5-T1
A6,B6-T1
100 140
Measured with C-spool and
Including couplings.
225
MHV-32
0
0 160
A1,B1-T1
A2,B2-T1
A3,B3-T1
A4,B4-T1
A5,B5-T1
A6,B6-T1
250
A1,B1-T1
0
0
600
0
0 400 500
A2,B2-T1
A3,B3-T1
A4,B4-T1
A5,B5-T1
A6,B6-T1
P
B1 B2 B3
A1 A3A2
Viscosity 32cSt.
700
A3,B3-T1
A1,B1-T1
A2,B2-T1
A4,B4-T1
A5,B5-T1
A6,B6-T1
250 350
B4 B5 B6
A5A4 A6
T1
5 (72)
10 (143)
15 (214)
20 (286)
(13.2) (21.1)(23.8)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
(26.4) (37)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
(42.3) (59.4) (66.1)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
(66.1) (92.5)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
(105.7)(132.1)(158.4)(184.8)
Flow l/min. (USgpm)
∆p bar (psi)
∆p bar (psi)
∆p bar (psi)
∆p bar (psi)
∆p bar (psi)
max. spoolopening A/B T1
Pressure drop A/B T
With MDM or MUV/R
11
DIAGRAMS
3502500
225 2501600
A1-T+T1
A2-T+T1
A3-T+T1
A4-T+T1
A5-T+T1
A6-T+T1
A1-T+T1
A2-T+T1
A3-T+T1
A4-T+T1
A5-T+T1
B1/B6-T+T1
B1/B6-T+T1
A6-T+T1
0
0
MHV-12
50 80 90
0
MHV-20
MHV-16
0
0
A1-T+T1
A2-T+T1
A3-T+T1
A4-T+T1
A5-T+T1
A6-T+T1
180140100
B1/B6-T+T1
MHV-25
0
A2-T+T1
A1-T+T1
A3-T+T1
A4-T+T1
A5-T+T1
A6-T+T1
B1/B6-T+T1
A1-T+T1
A2-T+T1
A3-T+T1
A4-T+T1
A5-T+T1
A6-T+T1
B1/B6-T+T1
MHV-32
0
0 400 560 700
Viscosity 32cSt.
Measured with C-spool and
A1
B1
P
T
A4A3A2
B2 B3 B4
A6A5
B5 B6
T1
Including couplings.
5 (72)
10 (143)
15 (214)
20 (286)
(13.2) (21.1)(23.8)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
Flow l/min. (USgpm)
(26.4) (37) (47.6)
5 (72)
10 (143)
15 (214)
20 (286)
(42.3) (59.4)(66.1)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
(66.1) (92.5)
Flow l/min. (USgpm)
5 (72)
10 (143)
15 (214)
20 (286)
(105.7) (147.8) (184.8)
Flow l/min. (USgpm)
∆p bar (psi)
∆p bar (psi)
∆p bar (psi)
∆p bar (psi)
∆p bar (psi)
max. spoolopening A/B T+T1
Pressure drop A/B T+T1
With MUV or AN
12
T
P
MUV MHV
A
B
AP
AP/T
B
A
MHVMDM
P
T1
3: AP-12-K
1: MUV-12-K
2: MHV-12-KSFWA-30/30
B
A
P
T
2
B
A
P
T
A
P
T
B
3
1
TYPE OF VALVE MOUNTING
The AMCA proportional directional control valves series
MHV...K are ganged valves.
A complete AMCA-MHV..K system consist for example
of three main parts (fig 16).
1. MUV or MDM : pressure relief (MUV, fig 17) or
pressure reducing (MDM, fig 18)
valve
2. MHV .. : 4/3 directional control valve with
lever control.
3. AP : endplate.
CONFIGURATION
Fig. 16
Fig. 17
A
Fig. 17
Fig. 18
A
Fig. 18
13
The following options are possible (see fig 19, application (example) and ordering code).
Port connections:
T1 : Low back pressure.
- if there are cylinders in the circuit with a large returnflow, T1 shall be connected to tank for a lower return
pressure in the valve;
- if a MDM-valve is mounted, T1 is the mainport to tank std. mounted on the endplate;
- if a MUV-valve is mounted, the T1 on the endplate is an option.
X: Auxiliary port (on the MUV or MDM valve)
- the maximum pressure-level in the entire system can be remotely controlled by the use of a small relief
valve (size 4 mm (0.16 inch)) connected to the auxiliary port X, or
- the pressure in the entire system can be unloaded by the use of an electrically operated 2/2 valve connected
to aux. port X (e.g. for load security systems on mobile cranes), or
- in case of a load sensing system, the load pressure check back signal on the X port can be connected to
the load sense port of the variable displacement pump.
Y: Auxiliary port (on the directional control valve).
- if it is necessary that one or more users in a circuit operate at reduced pressure, a small relief valve (size
4 mm (0.16 inch)) may be connected to port Y.
Z : Auxiliary port (on the endplate).
- if valves are combined (with the same or different size), port Z is used;
- for sensing the load pressure check back signal, this port shall be connected to port X of the next valve,
which requires only a simple inlet plate AN (see ordering code).
OPTIONS
MHV-..-KSFWA-../../Y
T
P
X
Y
MUV-..-KSVS/X
T1
Z
AP-..-K/T1/Z
A
B
Fig. 19
14
VARIANTS / OPTIONS
Compensator (MUV/MDM) variants:
Adjustment 3 up to 12 bar (43...172 psi).Fig 20.
V : The spring in the spring chamber is adjustable
between 3 and 12 bar (43 and 172 psi) for
decreasing or increasing the max. flow at user
A and B of the proportional control valve. This
variant is recommended at a constant
pressure circuit in combination with a very low
load-pressure.
Position lock:
F : Standard, spring return to center position.
B : Friction brake with center detent, fig 21, the
spool can be set in any position.
O : No spring return to center position
R : Detent, fig 21, the spool can be set in any
position, the center position and both end
positions are perceptible.
V : Stronger spring to center position.
Neutral lever position:
H, S, R and W :
Factory setting of the handle position, see
page 19.
Spool types:
A,B,C,D,E,F,G,K,M,O :
See page 2
Flow:
.../...: Flow port A/port B in litres/minute, the choice
has to be made in combination with the Dp of
the compensator (MUV or MDM).
For the maximum flow per Dp compensator
see page 2.
Standard is Dp 3 bar (43 psi)
Options:
P : The MDM-spool is plugged. (standard)
Q : The MDM-spool has a small orifice to the
spring chamber for quick response.
This variant is recommended at a constant
pressure circuit.
Options:
A : Metal housed microswitch, if there is a need
for electrical indicators (10A, 125-250 VAC ),
the microswitch has 2 electrically-isolated
single-poles, changeover for either independent
or double-pole use, fig. 22.
G : Cast iron spring and handlemechnism caps
for max. return pressure is 30 bar (428 psi).
H : Stroke limitation, for adjustment of the
maximum flow by blocking the stroke of the
spool, fig. 21 and 22.
SW : Cast iron spring and handlemechnism caps,
whereby the movable parts are suitable for
special environment conditions, like seawater.
U : Without lever.
The following variants/options are possible (see ordering code).
Fig. 20 Adjustable
recirculation pressure
Fig. 21 Friction brake / detent
Detent, end position
Centre position
Detent, end position
Stroke limitation
Stroke limitation
WX-2161-002
Microswitch
Normally Normally
Closed Open
321
Common
Diagram of Connections
adjustment
Fig. 22 Microswitch
Max. pressure adjustments variants:
H : With handwheel (Ø 30mm, Ø 1.18inch) for
manual adjustment without using tools
E2 : Electrical remote control up to 350 bar (5000
psi)
W : Without pressure adjustment, no relief valve.
15
APPLICATIONS
Fig. 23 Hydraulic foundation rig
16
ACFF
AMCA
Constant
Flow
Filter
MUV
MUV
MHV AP
T1
MHV MHV MHV
MUV/R MHV MHV
MUV MHV MHV
AP/T
MHV MHV
MHV AP
MHV AP
APPLICATIONS
Fig. 24 Hydraulic foundation rig
17
A System with a fixed displacement pump.
The use of a pump with a constant output requires the additional use of a pressure relief valve (MUV) for
recirculation with 3,6,8 or 12 bar. Simultaneous use of the two consumers is possible.
T
Y
MUV..K
P
Z
AP..K/Z MHV..K/Y
P
MDM..K
T1
A
B
AP..K/T
Y
AP..K/T
P
MDM..K MHV..K/Y
A
B
T1
MHV..K /Y
Y
T
P
Y
MUV..K MHV..K
BB
AA
MHV..K
A
B
MHV..K /Y
A
B
AP..K
300 bar
(4290 psi)
250 bar
(3575 psi)
150 bar
(2145 psi)
APPLICATIONS
Fig. 25
Varied pressures during use.
When several directional control valves are built into one control block and one or more control circuits must
have a different maximum pressure during use, to the present conditions, a pressure relief valve (nominal bore
4) must be fastened to the Y connection. The directional control valve with the highest pressure during use must
be positioned immediately after the pressure relief valve (MUV), followed by the others in (pressure) decreasing
order. The adjustable relief valve of the MUV-valve is positioned at the highest pressure point, while the following
control circuit is connected to the pressure relief valves at the Y connection.
Fig. 26
18
A System with variable displacement pump or constant pressure line systems.
With only one pressure compensated variable displacement pump it is possible to have a load-independent
simultaneous use of several consumers by the use of pressure reducing (MDM) valves.
M
MHV..K
P
MDM..K MHV..K
T1
B
A
AP..K/T
P
X
MDM..K/X
A
B
AP..K/T
T1
Fig. 27
M
P
AN..K
MHV..K MHV..K
A
B
A
AP..K
T
P
MHV..K
X
AN..K
AP..K
B
B
A
T
X
∆p LS-PUMP 10-15 bar (143-216 psi)
A sytem with a LS-pump
Load independent flow control by using load sensing pump.
If the hydraulic system is equiped with a load sensing pump, the X port of the inlet plate AN..K has to be
connected with the load sensing signal. A pressure compensator MUV or MDM is not necessary in that
case.
Note: If ordering the control valves (MHV) the Dp of the pump has to be specified, so the spools can be
grinded for the exact flow.
Fig. 28
APPLICATIONS
19
DIMENSIONS
j3
q
j3
j1
j
x1
p1
t1
k
x2
h3
w
y1
v
h2
0
f2
f1
f
j4
h
=
=
bbbb
p2
h1
l
d
30
s2
s1
r
r1
r2
t2
s
11
m
z1z2
g1
g
a
e30
j2
=
=
c
17
d
l
a
g
g1
z1
11
t2
s
r1
r
s2
e
17
==
c
r2
10
0
x3
p1
t3
0
b1
Z
Lever position S
X
Lever position H
A3 B3
Y
A2
Y
B2
MHVAP MHV
P
A1
Y
B1
T
T1
MHV MUV
Lever position R
a
Lever position W
0
Lever position H
Lever position S
a
H
AMCA
12
Z
0
b
Lever position W
MHV 16/32 K
b
MHV 12 K
T1
A1
X
B1
P
T
AN
19,5 (0.77)
115 (4.53)
115 (4.53)
122 (4.81)
205,94 (46.27)
205,94 (46.27)
170 (6.70)
12,5 (0.49)
12,5 (0.49)
M10
2 x 12
260 (10.24)
130 (5.12)
384 (15.13)
230 (9.06)
x1
z1
z2
x2
y1
t2
v
w
s2
t1
q
r2
s
s1
r1
r
p1
p2
k
l
m
85 (3.35)
14 (0.55)
64 (2.52)
-
5 (0.20)
74 (2.92)
74 (2.92)
36 (1.42)
14 (0.55)
19 (0.75)
101 (3.98)
14 (0.55)
-
-
78 (3.07)
20 (0.79)
-
-
95 (3.74)
94 (3.70)
46 (1.81)
94 (3.70)
18 (0.71)
22 (0.87)
55 (2.17)
25 (0.99)
20,5 (0.81)
200 (7.88)
25 (0.99)
-
28 (1.10)
8 (0.32)
271 (10.68)
55 (2.17)
29 (1.14)
12 (0.47)
-
25 (0.99)23,5 (0.93)
32 (1.26)
2 (0.08)
39 (1.54)
230 (9.06)
10 (0.39)
32 (1.26)
1,5 (0.06)
43 (1.69)
10 (0.39)
3,5 (0.14)
70 (2.76)
35 (1.38)
330 (13)
15 (0.59)
85 (3.35)
42 (1.65)
20 (0.79)
-
f2
h2
j2
j3
j4
j1
h3
g1
h
h1
g
e
f
f1
c
d
a
b
30 (1.18)30 (1.18)30 (1.18)
28,4 (1.12)
81,65 (3.22)
-
-
-
-
8,5 (0.33)
7,5 (0.30)
M6
9 (0.35)
40 (1.58)35 (1.38)
6 (0.24)
20 (0.79)
9 (0.35)
105 (4.14)
210 (8.27)
8 (0.32)
11 (0.43)
25 (0.99)
10 (0.39)
10 (0.39)
10 (0.39)
M8
13 (0.51)
45 (1.77)
20 (0.79)
11 (0.43)
30 (1.18)
56 (2.21)
10
32
110 (4.33)
-
46 (1.81)
51 (2.01)
25 (0.99)
16 (0.63)
30 (1.18)
79 (3.11)
65 (2.56)
30 (1.18)
18 (0.71)
30 (1.18)
89 (3.51)
18
140 (5.52)
55 (2.17)
18
38
18
68 (2.68)
18
46
42,17 (9.48)
42,17 (9.48)
38,25 (8.59)
15,69 (3.53)
16,67 (3.75)
Control spool stroke
AP
MHV
MDM
AN
MUV
27,46 (6.17)
9,81 (2.20)
23,54 (5.29)
23,54 (5.29)
8,83 (1.98)
2 x 102 x 8
68,65 (15.43)
29,42 (6.61)
78,45 (17.63)
78,45 (17.63)
29,42 (6.61)
52,96 (11.90)
127,49 (28.65)
68,65 (15.43)
161,81 (36.36)
122,58 (27.54)
51,98 (11.68)
122,58 (27.54)
68,65 (15.43)
Weight in N (lbs)
150 (5.91)
-
19 (0.75)
112,5 (4.43)
-
30 (1.18)
35 (1.38)
65 (2.56)
135 (5.32)
135 (5.32)
183 (7.21)
133,5 (5.26)
-
23 (0.91)
-
159,5 (6.28)
159,5 (6.28)
75,5 (2.97)
30 (1.18)
38,5 (1.52)
33 (1.30)
55 (2.17)
270 (10.64)
40 (1.58)
1,5 (0.06)
12 (0.47)
25 (0.99)
46 (1.81)
10 (0.39)
436 (17.18)
100 (3.94)
33 (1.30)
40 (1.58)
1,5 (0.06)
59 (2.32)
12 (0.47)
270 (10.64)
117,5 (4.63)
50 (1.79)
30 (1.18)
494 (19.46)
-
40 (1.58)40 (1.58)
50 (1.97)
30 (1.18)
322 (12.69)
10 (0.39)
13 (0.51)
150 (5.91)
M12
15 (0.59)
15 (0.59)
15 (0.59)
57,5 (2.27)
177,5 (6.99)
10 (0.39)
35 (1.38)
15 (0.59)
390 (15.37)
17,5 (0.69)
17,5 (0.69)
18 (0.71)
M14
40 (1.58)
20 (0.79)
68 (2.68)
40 (1.57)
108 (4.26)
35,5
76 (2.99)
200 (7.88)
12
12
71 (2.80)
45 (1.77)
23 (0.91)
45 (1.77)
128 (5.04)
12
90 (3.55)
235 (9.26)
12
41
2 x 14 2 x 16
190 (7.49)j - 235 (9.26) 292 (11.50) 355 (13.99)
Nominal bore
12 16 20 25 32
G1/2" (8)
G1/4" (6)
Connecting threads in BSP (SAE thraight thread ’O’ring BOSS) (other thread on request)
P,T,A,B,T1
X,Y,Z G1/4" (6)
G3/4" (12)
G1/4" (6)
G1" (16)
G1/4" (6)
G1 1/4" (20) G1 1/2" (24)
G1/4" (6)
in mm. (inch) (2 x 0.32) (2 x 0.39) (2 x 0.47) (2 x 0.55) (2 x 0.63)
Dimensions in mm. (inch)
b1
60 (2.36) 70 (2.76) 86 (3.39) 100 (3.94) 120 (4.73)
t3 17 (0.67) 20 (0.79) 25 (0.99) 30 (1.18) 33,5 (1.32)
x3 99 (3.90)
129 (5.08) 159 (6.26) 189 (7.44) 224 (8.82)
20
MAINTENANCE DATA
Mounting procedure
- AMCA-valves shall not be mounted by
overtightening of mounting bolts, causing
mechanical distortion and thus spool lock. (see
tightening torques on page 23).
- Don’t use conical thread for port-fittings.
- For sealing purposes, use o-rings.
- At the port-connections, the B-port shall be
connected to the line with the largest return-flow
(e.g. piston-side of differential cylinder),
because in the valve the distance B-T is
shorter than A-T.
- Avoid ingression of contaminants during
mounting.
Start-up procedure
- Start the system-flushing procedure with the
adjustment-screw of relief valve 2 (see page 5)
fully released to achieve the minimum
pressure.
- Turning the adjustment-screw clockwise (360°
turn = ca. 100 bar (1430 psi)), the maximum
load-pressure rises up to the desired level.
(max. 350 bar (5000 psi)). During this
adjustment the end-users (cylinder and/or
motor) should be blocked.
- Check the valve-function and the tightness of
fittings etc.
- Use the stroke limiting screws to bleed the end-
caps, during system bleeding.
Adjustment procedure
MDM / MUV
To avoid instability of the MDM- or MUV-spool, the
damping-screw (see fig. 7 and 9) is factory-
setted. Adjustment on location is possible as
follows:
- Remove the cover-screw (width 8 mm (0.32
inch))
- Adjust the damping with the damping-screw
(width 5 mm (0.2 inch)), turning clockwise or
anti-clockwise for more or less throttling.
Note: Don’t throttle too much especially in the
case of MDM otherwise the load signal
can be disturbed.
Flow-adjustment
Factory-setting of flows, as ordered in ordering
code.
If, after long life-cycle, re-adjustment should be
necessary, two possibilities are available,
depending on the configuration:
1. Stroke limiter (see fig. 30, 5)
- Remove cover-screw of stroke limiter
- Loosen the lock-nut (width 13 mm (0.51 inch))
- Turn the stroke limiting screw with (width 4 mm
(0.16 inch)) clockwise to reduce flow and anti-
clockwise to enlarge flow.
2. Dp-adjustment (see fig. 28, 1)
- Loosen the lock-nut (width 13 mm (0.51 inch)
- Turn the adjustment screw with (width 4 mm
(0.16 inch) clockwise to enlarge the preset
spring-force, to achieve more flow. (anti-
clockwise to reduce flow)
- Tighten lock-nut.
Note: If the flow through A-port is sufficient and
the flow through B-port should be
enlarged, adjust first the B-flow by Dp-
adjustment and reduce after that the A-
flow by stroke limitation.
Fluid maintenance
Due to the construction, these AMCA-valves, are
not highly susceptible to particulate (silt type) lock,
nor to contaminant wear. Therefore the contaminant
sensitivity is very low.
- Use mineral oil (recommended ISO/VG-32).
Other fluids on request.
- Keep the contamination level better or equal
NAS 1638 class 9 or ISO 18/15.
21
TROUBLE SHOOTING
MHV 16/32 K
6
A
9
5
MHV 12 K
MUV MUV or MDM
BA
7
B
8
5
2
1
PT
34
A. System pressure too low or set pressure
cannot be reached
1. Relief valve cartridge fouled
Dirt particles jammed between cone and seat
of relief valve (1) and prevent pressure being
built up.
Turn adjustment anti-clock wise, switch a
directional valve several times. If necessary,
dismantle (a M4 bolt assists in removing the
spool). If damaged, replace cone and seat (if
necessary).
Examine the system filter.
2. Damping throttle (2) blocked (dirt or
maladjustment).
If necessary, remove, clean and replace.
Adjust to 1 1/2 - 2 1/2 turns from fully closed
position. Find the right damping position. Turn
the throttle only by unloaded pump.
3. MUV-spool (3) jammed open
When removing the end-cover (4) the spring
should push out of the spool. Remove and
examine the spool and bore for damage. Deburr
with care. Flush the spool to remove dirt.
4. Faults in other components of the system
Damaged pump, motor, seals etc.
Note: The set pressure can only be reached if a
cylinder is at the end of its stroke or a
motor is stalled.
B. User moves erratically
1. Air in system
Bleed both end-caps with stroke limiting screws (5).
2. Excessive friction of directional spool
Remove spring-cap (8) and examine spool (9)
and bore from dirt or damage. Deburr with care.
Examine system filter.
Also spool lock, by overtightening mounting
screws or bolts.
3. Excessive damping
See A2.
4. Excessive friction in other components of the
system
C. User does not move or moves at slow speed
1. Damping throttle blocked or dirty
See A2.
2. Relief valve setting too low
See A1.
3. Directional spool does not shift
Handle mechanism deficiency (6)
4. MUV-spool jammed open
See A3/or broken spring (unlikely) (7)
5. There is insufficient user load.
D. Pump does not unload
1. MUV-spool jammed (see A3)
2. Directional spool not centring
Excessive friction (see B2).
Fig. 29
Fig. 30
Fig. 31 Fig. 32
22
RECOMMENDED SPARE PARTS
HR-2121-040
HR-2121-040
HR-2123-040
HR-2124-040
HR-2125-040
cast iron + code H:
HR-0131K424
HR-0112K424
HR-0113K424
HR-0114K424
HR-0115K424
MHVAP MHV
SPRINGS MHV
MHV
HB-0014-003HR-2123-032
MDM/MUV 20:
HR-0113-040
Position lock spring:
HR-0113-010
HR-0115-010
HR-0114-010
HR-0112-010
HR-0111-010
HR-0114-040
HR-0115-040
MHV-20
MHV-32
MHV-25
MHV-16
MHV-12
MDM/MUV 32:
MDM/MUV 25:
HB-0032-003
HR-0114-010
HR-0115-010
HB-0032-001
HB-0032-002
HR-2124-032
HR-2125-032
HB-0014-002
HB-0112-014
Recirculation pressure:
HR-0111-040
HR-0111-040
Pressure adjustment spring: HR-0111-039
Recirculation pressure spring:
MDM/MUV 16:
MDM/MUV 12:
Size:
3 bar (43 psi)
MDM
MUV
HR-2121-032
HR-2121-032
6 bar (86 psi)
HB-0014-001
HB-0014-001
8 bar (114 psi)
alloy:
MHV-12:
MHV-16:
MHV-20:
MHV-25:
MHV-32:
AP
HR-0131K304
HR-0112K304
HR-0113K304
HR-0114K304
HR-0115K304
HR-0114-309
HR-0112-309
HR-0112-309
HR-0114-309
HR-0131K309
HR-0111K335
HR-0111K335
HR-0114K335
HR-0115K335
HR-0113K335
MHV-12:
MHV-25:
MHV-20:
MHV-16:
MHV-32:
Relief valve insert:
Lever with knob:
alloy + code H:cast iron:
HR-0131K424
HR-0112K404
HR-0113K404
HR-0114K404
HR-0115K404
HR-0131K304
HR-0112K324
HR-0113K324
HR-0114K324
HR-0115K324
12 bar (172 psi)
MHV MHV MHV
MUV
MDM
Handle mechanism:*
MHV-12:
MHV-25:
MHV-20:
MHV-16:
MHV-32:
MHV-16: HR-0112K303 HR-0112K403 HR-0112K323 HR-0112K423
HR-0113K403
HR-0114K403
HR-0115K403
MHV-20:
MHV-25:
MHV-32: HR-0115K303
HR-0114K303
HR-0113K303 HR-0113K323
HR-0114K323
HR-0115K323 HR-0115K423
HR-0114K423
HR-0113K423
cast iron:
HR-0131K423
Spring cap:*
MHV-12: HR-0131K303
alloy: alloy + code H:
HR-0131K303
cast iron + code H:
HR-0131K423
Size: Spring return Stronger spring return
(code: V)(code: F)
HB-0503-531
HB-0503-416
HB-0503-420
HB-0503-425
HB-0503-432
Seawater Resistant:
HB-0503-531
HB-0503-516
HB-0503-520
HB-0503-525
HB-0503-532
Seawater Resistant:
+ code H:
* Standard with BUNA-N seals, if Viton seals are
requested, add 'V' at the end of the code.
23
RECOMMENDED SPARE PARTS / TIGHTENING TORQUES
MAXIMUM TIGHTENING TORQUES MHV
130 Nm (96.2 lb.ft)
80 Nm (59.2 lb.ft)
50 Nm (37 lb.ft)
30 Nm (22.2 lb.ft)
15 Nm (11.1 lb.ft)
MHV-16:
MHV-25:
MHV-20:
MHV-32:
MHV-12:
MHVAP MHV
4 Nm (2.96 lb.ft)
8 Nm (5.92 lb.ft)
8 Nm (5.92 lb.ft)
15 Nm (11.1 lb.ft)
20 Nm (14.8 lb.ft)
9,5 Nm (7.03 lb.ft)
15 Nm (11.1 lb.ft)
20 Nm (14.8 lb.tf)
35 Nm (25.9 lb.ft)
50 Nm (37 lb.ft)
9,5 Nm (7.03 lb.ft)
20 Nm (14.8 lb.ft)
50 Nm (37 lb.ft)
35 Nm (25.9 lb.ft)
15 Nm (11.1 lb.ft)
MHV-16:
MHV-12:
MHV-25:
MHV-20:
MHV-32:
MHV-12:
MHV-20:
MHV-32:
MHV-25:
MHV-16:
MHV-16:
MHV-20:
MHV-12:
MHV-32:
MHV-25:
4 Nm (2.96 lb.ft)
8 Nm (5.92 lb.ft)
8 Nm (5.92 lb.ft)
15 Nm (11.1 lb.ft)
20 Nm (14.8 lb.ft)
MDM
MHV
MUV
MHV-20:
MHV-32:
MHV-25:
MHV-12:
MHV-16:
R-..-001-..
R-..-002-..
R-..-003-..
R-..-021-..
R-..-022-..
R-..-023-..
R-..-052-..
R-..-051-..
shims and bushes
for MDM + ∆P
for MUV + ∆P
for MHV-16-32-K
for MDM-12-K
for MUV-12-K
for MDM/MUV/R-16/32-K
for AP-16/32-K
for MUV-16/32-K
for AP-12-K
for MHV-12-K
051
052
025
024
022
* FOR MUV/MDM SPRINGS GIVE P
shims and bushes
Assembly kit:Seals (VITON 90˚ Shore),
Seals (VITON 90˚ Shore)
Seals (VITON 90˚ Shore)
26
22
21
005
021
004
002
001
and springs *
Assembly kit:Seals (BUNA-N 70˚ Shore),
Seals and assembly kits
SPARE KIT
shims and bushes
Assembly kit:Seals (VITON 70˚ Shore),
Seals (VITON 70˚ Shore)
Seals (VITON 70˚ Shore)
Seals (BUNA-N 70˚ Shore)
Seals (BUNA-N 70˚ Shore)
06
12
16
11
01
02
R
and springs *
and springs *
R
..
POSSIBLE LOCATIONS OF
25 MHV-25
32 MHV-32
16
12
20
MHV-12
MHV-20
MHV-16
R-..-002-..
R-..-023-..
R-..-051-..
R-..-052-..
R-..-003-..
R-..-021-..
R-..-022-..
SPARE PART KITS MHV
R-..-001-..
... ..
R-..-025-..
R-..-005-..R-..-004-..
R-..-024-..
R-..-004-..
R-..-024-..
R-..-004-..
R-..-024-.. R-..-024-..
R-..-004-.. R-..-005-..
R-..-025-..R-..-024-..
R-..-004-..
24
MUV 16 K S 3 S / X
Model Number
Compensator type
MUV = pressure relief valve
MDM = pressure reducing valve
Size
12 = for size 12
16 = for size 16
20 = for size 20
25 = for size 25
32 = for size 32
Mounting type
K = Sandwich
Series
S = max. operating pressure 350 bar
∆p Compensator
3 = 3 bar version (43 psi)
6 = 6 bar version (86 psi)
8 = 8 bar version (114 psi)
12 = 12 bar version (172 psi) *
V = 3-12 bar (43-172 psi) adjustable,
page 14, fig. 20.
* Due to loss of pressure, c.q. energy conversion
into heat, we recommend the next largest series.
Options
P = Plugged MDM-spool
Q = Orifice in MDM-spool
R = Allows serial connection with 2nd
MUV (only for MUV)
Viton = With Viton seals 70 Shore
X = Remote control connection
SAE = S.A.E. straight thread ’O’RING BOSS
... = Factory setting of operating pressure:
350 bar (5000 psi)
Indicate here other desired operating
pressure in bar.
Maximum pressure adjustment
S = With screw (standard)
H = With handwheel ( 30 mm, 1.18 inch)
for manual adjustment
E
2 = Electrical remote control up to 350 bar
(
5000 psi)
W = Without pressure adjustment
(For composing a valve block use a copy of the order form, page 31)
ORDERING CODE
Inlet plate: MUV OR MDM
AN 16 K / - / ∆p = 3 bar
Model Number
Compensator type
AN = Inlet Plate, no compensator
(standard an X port for LS signal)
Size
12 = for size 12
16 = for size 16
20 = for size 20
25 = for size 25
32 = for size 32
Mounting type
K = Sandwich
Options
- = no option
SAE = S.A.E. straight thread 'O'RING BOSS
Pressure drop for max. flow
∆p = Give ∆p, in bars, of the main compensator or standby pressure of the LS-pump
Inlet plate: AN (instead MUV or MDM)
25
MHV 16 K S F W A 50/100 / H
Model Number
Series
MHV = Directional control valve,
Lever-controlled
Size
12 = for size 12
16 = for size 16
20 = for size 20
25 = for size 25
32 = for size 32
Mounting type
K = Sandwich
Series
S = Max. operating pressure
350 bar (5000 psi)
Position lock, see also page 14
F = Spring return (standard)
B = Friction brake with center position
O = No spring return to center position
R = Detent
V = Stronger spring to center position.
Neutral lever position
H =
S =
R = See page 19
W =
Spool type
A, B, C, D, E, F, G, K, M, O See page 2
Maximum Flow (l/min)
.../... = choose the flow for port A and port B
(see for max. flows page 2 , choose the flow in
combination with the ∆p compensator)
In case of different flow ranges for ports
A + B, the range for port A is given first,
followed by the range for B, eg. 50/100.
Options , see also page 13 and 14
A = With switch contact IP65
G = With cast iron handle mech.and spring cap.
H = With stroke limitation
SW = Resistant to sea water
U = Without lever
Viton = With Viton Seals 70 Shore
Y = Remote control connection
SAE = S.A.E. straight thread ’O’RING BOSS
ORDERING CODE
CONTROL VALVE (MHV)
26
END PLATE
Example for ordering:
- Manual control valve block with inlet plate nominal
bore 12, max. operating pressure 350 bar.
1. AN : Inletplate, Dp compensator 3 bar.
2. MHV : 4/3 -way valve for manual operation,
spooltype “A”, volume flow range 30
l/min. at connections A + B, 3 switched
positions, with spring return into the neutral
position, lever pos. W., with stroke
limitation.
3. MHV : like 2.
4. MHV : 4/3-way valve for manual operation
spooltype “C”, volume flow range at
connection A = 20 l/min, connection B = 40
l/min, with 3 positions detent lever pos. W.
5. AP : Endplate AP standard
AP 16 K / T1
Model Number
Series
AP = End plate
Size
12 = for size 12
16 = for size 16
20 = for size 20
25 = for size 25
32 = for size 32
Mounting type
K = Sandwich
Options
T1 = With additional tank port (in combination with MDM standard)
Viton = With Viton seals 70˚ Shore
Z = Remote control
SAE = S.A.E. straight thread 'O'RING BOSS
5
B
B
B
A
A
4
T
3
2
1
P
X
2
T
P
Z
1
Example for ordering:
- By-pass (3-way) pressure relief valve (MUV) with 6
bar (86 psi) Dp compensator, max. operating
pressure 250 bar (5000 psi).
- End plate with auxiliary ‘Z’ port for sensing the load
pressure check back signal, this port shall be
connected to port X of the next valve, which
requires only a simple inlet plate AN (see ordering
code).
1 = AN-12-K / Dp= 3 bar
2 = MHV-12-KSFWA-30/30
3 = MHV-12-KSFWA-30/30
4 = MHV-12-KSRWC-20/40
5 = AP-12-K
Fig. 32
Fig. 33
1 = MUV-25KS6S >
2 = AP-25K/Z >
ORDERING CODE
ORDERING EXAMPLE
27
ORDER FORM
Company
Name
Order No.
Quantity
(complete system)
Date :
:
:
:
:
(stamp)
MUV or MDM
INLET PLATE
M
AN
MHV
1
2
MHV
3
MHV
4
MHV
5
MHV
6
MHV
7
MHV
8
MHV
END PLATE AP
KS
K
KS
K
KS
KS
KS
KS
KS
KS
KS
MHV
VALVE
CONTROL
Size
Spool type
Flow
DO NOT WRITE ON THIS CHART - make a photocopy of this page and record
the valve ordering code on the copy (then the chart can be used more than once)
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AB
AMCA Hydraulic Fluid Power B.V.
B.Kuiperweg 33, 9792 PJ TEN POST
P.O.BOX 18, 9790 AA TEN BOER
The Netherlands
Tel.: +31 (0) 50 - 3023577
Fax.: +31 (0) 50 - 3021226
e-mail: [email protected]
homepage: http://www.amca-nl.com
Your local representative
