APV – 22A
* Modular assembly system, suitable for ‘Build Program’.
* Maximum operating pressure 420 Bar / 6092 PSI
* Different spool types up to 330 L/min / 86 GPM
* Pressure compensated for simultaneous multi users.
* Operating control in any combination (Electric-, Hydraulic and Manual).
* Adjustable ΔP for setting the maximum flow for maximum proportional range.
2
Index:
Main technical data ........................................................................................................................................... 3
Overview ............................................................................................................................................................ 4
Control section ................................................................................................................................................... 5
Options pump unloading functions and prop. relief ........................................................................................ 9
Example circuit ................................................................................................................................................. 11
General dimensions. ........................................................................................................................................ 12
Performance curves. ........................................................................................................................................ 14
System integration ........................................................................................................................................... 17
Troubleshooting ............................................................................................................................................... 18
3
Main technical data
Max. flow: Port P 330 L/min. 87 GPM
Port A / B 330 L/min. 87 GPM
Max. pressure: Port P / A / B 420 Bar 6092 PSI
Port T 35 Bar 508 PSI
Pressure setting range 14-420 Bar 203-6092 PSI
Pressure drop over 2-way compensator (A,B) 7 Bar 102 PSI
Internal pilot pressure supply 28 Bar 406 PSI
Pilot pressure for electric and hydraulic control 6-20 Bar 87-290 PSI
Spool stroke 7 mm 0.28 inches
Spool overlap (dead band) 1,45 mm 0.06 Inches
(21% of spool stroke)
Fluid Mineral oil according to
DIN 51524/51525
Fluid temperature range -30°C…+80°C
Viscosity range 10…500cSt, optimal 30cSt
Contamination level max. According to NAS 1638 Class 8
or ISO 4406: 18/16/13
Port connections
Port P, T Through subplate
Port A,B Through subplate
Port Ls Through subplate
Port L Through subplate
Port YA,YB G 1/4” BSP
Electric connection AMP Junior Power Timer / Deutsch
Nominal voltage 12 VDC or 24 VDC
Nominal current 12 VDC (1500 mA)
24 VDC (750 mA)
Coil resistance 12 VDC (4,72 ± 5% Ω)
24 VDC (20,8 ± 5% Ω)
Recommended dither frequency 100 Hz
Type of protection IP 65
Duty cycle 100%
Hysteresis 3%
4
Overview
1 Dp-adjustment
2 Yb
3 LSb adjustment
4 LS - orifice
5 Option block
6 LSa adjustment
7 Ya
8 Shuttle valve 2 (ls/Z)
9 Shuttle valve 1 (A/B)
5
Control section
Control section
The spool section is the base of the APV-22 control section, it contains the 2-way compensator with delta p
adjustment, so the flow can be adjusted without using the stroke limitation.
Each control section has measuring ports (Ya, Yb) on LSa and LSb, and LS adjustment per user port. To
change between the several control types, different endcaps are used.
6
Control spool
There are 2 basic control spools available, the A spool with all ports closed in neutral position and the C
spool with P closed and A en B to T in neutral position, with 20% of nomial opening to T.
These 2 basic spools have 4 flow ranges in combination with different compensator springs, shown below.
A spool 35-80 l/min: AP-2220S202 + HR-2121-040
A spool 80-150 l/min: AP-2220S102 + HR-2121-040
A spool 150-250 l/min: AP-2220S102 + AP-1610-001-020
A spool 250-330 l/min: AP-2220S102 + AP-2220-001-016
C spool 35-80 l/min: AP-2220S252 + HR-2121-040
C spool 80-150 l/min: AP-2220S152 + HR-2121-040
C spool 150-250 l/min: AP-2220S152 + AP-1610-001-020
C spool 250-330 l/min: AP-2220S152 + AP-2220-001-016
C Spool 35-80
l/min
A Spool 35-80
l/min
7
Configuration codes control section (1)
22
A
F-
S
H
E
B
A
M
22
22
A
Subplate
F
With compensator
N
No compensator
1
Check valve function
-
none
S
Standard body type
S
standard flow compensator spring
L
Low flow compensator spring
H
High flow compensator spring
E
Suitable for electric or hydraulic control 4/3 version
F
Suitable for electric or hydraulic control 4/2 version
J
for electric and hydraulic control combined 1/4" BSP
I
for electric and hydraulic control combined SAE ORB 6
H
Manual control
Actuating type with control
body
B
24VDC
E,F,J,I,C,D
F
24VDC with pin
E,F,J,I,C,D
A
12VDC
E,F,J,I,C,D
E
12VDC with pin
E,F,J,I,C,D
H
24VDC with II 2G Ex mb II T4, flying leed
E,F,J,I,C,D
O
Hydraulic control 1/4" BSP
E,F,C,D
P
Hydraulic control SAE ORB 6
E,F,C,D
only in combination with manual control (H)
F
spring returm
B
friction brake
R
3 position detent
A
Amp junior connector
D
Deutsch connector
-
M
Additional manual control with E/O
8
Configuration codes control section (2)
CONTROL VALVE
PART: SPOOL SECTION
C
2-
/
2-
Main spool type
A
all ports blocked in neutral
C
A&B to tank in neutral (20% of nominal flow)
F
In neutral position all ports blocked
G
In neutral position port A + B throttled flow to T (20% )
B
B port blocked in neutral, A port throttled to tank (20%)
D
A port blocked in neutral, B port throttled to tank (20%)
Max. flow (l/min) (APV-22) A port / B port
1
330
2
300
3
250
4
150
5
80
-
none
Pre-tension (optional)
-
none
x
20 bar
9
Options pump unloading functions and prop. relief
Electrical proportional pressure relief
For remote control of the maximum pressure of the valve, the electrical proportional pressure relief is
available in 12 VDC and 24VDC.
Pump unloading function
For emergency stop function the load pressure signal from the control sections can be unloaded to tank.
The electrical control is available in 12 VDC and 24 VDC with 2/2 – way cartridge in normal-open and
normal-closed configuration.
10
Option configuration codes
CONTROL VALVE
PART: OPTIONBLOCK
D1
O
B
O
Pump unloading function, normally open
C
Pump unloading function: normally closed
E
prop pressure relief increase current, increase pressure
F
prop pressure relief increase current, decrease pressure
-
none
Actuation
A
12 VDC
B
24 VDC
H
Manual
11
Example circuit
The APV-22-A is meant for customers who design and produce the manifold or subplate themselves. In the
example diagram the circuit of a manifold with two control valves is shown.
The pilot line needs 28 to 35 pressure or 406 to 508 PSI pressure, The L-connection is ideally separately
connected to tank.
LS connection of valve 1 connects to the LS cascade entering valve 2 through the Z connection.
The LS connection of valve 2 connects to the LS port of the pump, or to the Z connection of another valve
in the manifold system. Z connection of valve 1 needs to be connected to the T-line
If only 1 control valve is used, than the Z connection also has to be connected to the T-line.
Connection
Function
L
Connect to separate drain to tank
Ppilot
28 to 35 bar Pilot pressure
T
Tank
Z
Connect to next valve in LS cascade or to tank
LS
Load sense line
P
Pomp line
12
General dimensions.
Dimensions in mm (inches)
Weight:
Manual control section 13,4kg (29.5 lb)
Hydraulic control section 13,6kg (30.0 lb)
Electric control section 13,6kg (30.0 lb)
13
Subplate lay-out (to be produced by customer)
Dimensions in mm.
Cad files available.
Open O-ring chamber
Ports
Ø D1
(mm)
Ø D2
(mm)
Ø d2
(mm)
H
(mm)
h
(mm)
O-ring NBR (90-shore)
P
16
21,9
0,20
1,9
0,1
17,12x2,62
T
15
21,9
0,20
1,9
0,1
17,12x2,62
A,B
22
28,15
0,25
1,9
0,1
23,47x2,62
LS, Z, L, Ppilot
4
7,8
0,15
1,2
0,1
4,47x1,78
Closed O-ring chamber
Ports
Ø D1
(mm)
Ø D2
(mm)
Ø d2
(mm)
Ø D3
(mm)
Ø d3
(mm)
H
(mm)
h
(mm)
O-ring NBR
(90-shore)
P
-
-
-
-
-
-
-
-
T
15
17
0,1
21,9
0,20
1,2
0,1
18,77x1,78
A,B
22
24,5
0,1
29,65
0,25
1,2
0,1
26,70x1,78
LS, Z, L, Ppilot
-
-
-
-
-
14
Subplate lay-out (to produce by customers)
Dimensions in inches
Open O-ring chamber
Ports
Ø D1
(inch)
Ø D2
(inch)
Ø d2
(inch)
H
(inch)
h
(inch)
O-ring NBR (90-shore)
P
0,63
21,9
0,86
0,07
0,004
0.67x0,89
T
0,59
21,9
0,86
0,07
0,004
0.67x0.89
A,B
0,87
28,15
1,11
0,07
0,004
0.92x0.89
LS, Z, L, Ppilot
0,16
7,8
0,31
0,05
0,004
0.18x0.07
Closed O-ring chamber
Ports
Ø D1
(inch)
Ø D2
(inch)
Ø d2
(inch)
Ø D3
(inch)
Ø d3
(inch)
H
(inch)
h
(inch)
O-ring NBR
(90-shore)
P
-
-
-
-
-
-
-
-
T
0,59
0,67
0,00
0,86
0,01
0,05
0,004
0.74x0.10
A,B
0,87
0,96
0,00
1,17
0,01
0,05
0,004
1.05x0,07
LS, Z, L, Ppilot
-
-
-
-
-
15
Performance curves.
16
Recommended spare parts breakdown
1: AP-2270-344F Spoolsection
2: AP-2220-342, Springcap for E/H/O
3: AP-2220-397 Springcap 22 100% H
4: AP-1640-364D Pumpunloading function
5: AP-1010-330 D/E Block
6: AP-2220-350 Handle mechanism 22
7: AP-2220-398 Handle mechanism 100% H
8: AP-2220-342 End cap for E/O
9: AP-2220S000E Spring assembly
10: AP-2220S102…252 Spool A/C
11: AP-1620-321 Cartridge hydraulically control
12: AP-1620-356 Solenoid
17
System integration
Mounting procedure
- AMCA-valves shall not be mounted by overtightening of mounting bolts, causing mechanical distortion and
thus spool lock. (135 Nm)
- Mounting on flat surface, flatness □ 0,01/100 mm (0.0004/3.9 inch)
- Don’t use conical thread for port fittings.
- For sealing purposes use O-rings.
- Check the voltage and current of the solenoid before operation.
- Avoid ingression of contamination during mounting.
- Check if the hydraulic pipes, tank and the oil are clean and demands to the needed requirements (NAS 1638
class 8)
Fluid maintenance
Due to the construction, the apv-valve is not highly susceptible to particulate (silt type) lock, nor to
contaminant wear. Therefor the contaminant sensitivity is low.
- Use mineral oil. Other fluids on request.
- Keep the contamination level better or equal to NAS 1638 class 8 or ISO 4406: 18/16/13.
Startup procedure
- Check if all ports are connected according to the diagram before starting the pump or setting the valve
under pressure.
- To further bleeding, it is recommended to switch the valve under a low pressure. This will satisfy in most
cases.
- In most cases, the manufacturer has set, according to order the flow and pressure of the valve. When these
settings have to be changed please see page 17 to check the possibilities.
18
Troubleshooting
1) User moves erratically
a. Air in system
Bleed the end-and springcaps (7/8) or the hendle mechanism with the stroke limiting screws.
b. Solenoid faulty
Remove the solenoid (6) and check the pilot spool on dirt. If possible, swap solenoid to another
section to detect faulty unit.
c. Excessive friction of the main spool (5)
Remove both end- and springcaps end remove the main spool. Examine the main spool and bore for
dirt or damages. If necessary, deburr with care. Examine system filter.
d. Excessive damping
See 1.b.
e. Excessive friction in other components in the system.
2) User doesn’t work or works too slow
a. Damping orifice (11) blocked (dirt or fouled). If necessary remove and clean.
b. Shuttle valves blocked (dirt or fouled). If necessary remove and clean
19
c. Main load pressure to low.
d. Main spool doesn’t switch
See 1.C. or Pilot pressure is to low
e. There is insufficient user load.
3) Pump does not unload.
a. Main spool doesn’t center. See 2.C. Electrical fault, check the electrical circuit.
a) Note: The pressure setting can only be reached if a cylinder is at the end of its stroke or if a hydraulic motor
is stalled.