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Series CV 110Directional Control Valve
3
Contents
General Information
Technical Data
Spool Options
Performance Curves
Assembly Dimensions
Accessories
Order Code
Page 4
Page 5
Page 6-8
Page 9
Page 10-12
Page 13
Page 14
Series CV 110Directional Control Valve
4
General Information
The CV 110 open valve is a parallel circuit valve which is designed to operate with a fixed pump in open center hydraulic systems up to pressures of 320 bar (4600 psi) and flow rates of up to 50 l/min (13 USgpm).
The CV 110 on demand LS version is a valve which is designed to operate with a variable pump and in closed center systems up to a pressure of 320 bar (4600 psi) and flow rates of up to 50 l/min (13 USGpm).
The CV 110 valve series offers the OEM the selection of a number of spools for optimal spool control at any load as well as a wide range of spool controls for different applications.
Some of the CV 110’s main advantages are :
l Available from 1 to 6 sections as a monoblock valve
l Main relief valve
l Load check valves for each section
l Open & closed center option
l Direct acting relief valve for quick response time
l Power Beyond capability
l Exceptionally low spool leakage, less than 0.12 in³ (2 cm³) /min at 46 cSt and
100 bar (1500 psi) and 40°c upon request
l Float, regenerative and specially tuned spools
l Full range of spool controls : joystick, pneumatic, hydraulic, electro-hydraulic
proportional EHP and direct-acting solenoid (12VDC & 24VDC)
BSP and SAE threads are standard and the following threads can be supplied upon request :
l Metric
l NPTF
Series CV 110Directional Control Valve
5
Technical Data
Max pressure setting
Main relief valveTank Line
Flow rates
Max flow A/B
Temperature range
Standard seals
Spool leakage at
100 bar (1450 psi) and 46mm²/s (cSt)216 SSU viscosity A and B port
Filtration
Contamination level equal to or better then
Viscosity
Recommended operatingviscosity rangeStart viscosity up to
Weight
CV 111CV 113CV 114CV 115CV 116
Operating force required for spool movement
Spring centeredDetent inDetent out
Number of work sections
bar
32010
l/min
50
°C
-40 to +80
cm³/min
2
19/16 according to ISO 4406
mm²/s (cSt)
10-4001000
kg
3,26,68,310,011,7
N
130230200
1 to 6
psi
4600145
USgpm
13
°F
-40 to +176
inch³/min
0.12
NAS 1638-class 10
SSU
47 - 18754687
lbs
7,114,618,322,025,7
lbf
295245
Series CV 110Directional Control Valve
6
Spool Options
A-B G ⅜ 9/16-18 (SAE 6) M16x1.5
Inlet
Port sizes BSP UNF Metric
Tank
Cylinder ports
P1 G ⅜ ¾-16 (SAE 8) M18x1.5 P2 G ⅜ ¾-16 (SAE 8) M18x1.5 P3 G ⅜ ¾-16 (SAE 8) M18x1.5
T1 G ½ ⅞-14 (SAE 10) M22x1.5 T1 G ⅜ ¾-16 (SAE 8) M18x1.5 T2 G ⅜ ¾-16 (SAE 8) M18x1.5
STANDARD THREADS
A B
P TA B
P T
A B
P T
A B
P T
A B
P T
A B
P T
A B
P TA B
P TA B
P T
Part No. Spool type Type Symbol SP-No.
10573-3B 2SA SP-10573-3B
10574-3B 2XA Single acting A port SP-10574-3B
10309-3B 3X DA + float SP-10309-3B
10308-3B 3S SP-10308-3B
10307-3B 3R SP-10307-3B
10575-3B 4X Motor spool SP-10575-3B
10576-3B 4S SP-10576-3B
10310-3B 8R SP-10310-3B
10311-3B 8S SP-10311-3B
DA + floatwith metering
DA + floatwith metering
Motor spoolwith metering
DA + regenwith metering
DA + regen with metering
SPOOL FOR OPEN CENTERED VALVES
Single acting A portwith metering
10709-3B 1S SP-10709-3BDAwith metering
A B
P T
Series CV 110Directional Control Valve
7
Spool Options
Closed Center LS Open Center
A B
P T
A B
P T
A B
P T
A B
P T
A B
P T
A B
P T
Part No. Spool type Type Symbol SP-No.
10577-3B 2RALS SP-10577-3B
10578-3B 2SALS SP-10578-3B
10548-3B 3RLS SP-10548-3B
10549-3B 3SLS SP-10549-3B
10551-3B 8SLS SP-10551-3B
10550-3B 8RLS SP-10550-3B
DA + floatwith metering
DA + floatwith metering
SPOOLS FOR LOAD SENSING OPTION
Single actingwith metering
Single actingwith metering
DA + floatwith metering
DA + floatwith metering
11590-3B 1SLS SP-11590-3BDAwith metering
A B
P T
Series CV 110Directional Control Valve
8
Spool Options
[1.19]30.1 M8x1.25
M8x
125
53[2
.09]
64[2
.52]
[2.05]52
[2.00]50.8
[1.3
0]33
[3.23]82
[3.86]98
45.8[1.80]
[2.32]59
Code A-sideType B-side CodeType
9
11
13
S5
S6
W
Spring centered.
Detent in pos.1,2 and 3
Spring centered. Detent in pos.4
Spring centered. Detent in pos.
3 and 4
Spring centered. Detent in position
2 and 4
Pneumatic on/off
Electropneumatic on/off.
12V/270mA alt.24V/150mA.
Hirschmann connector is standard.
Other connectors are available on request.
Hand lever.Encased
Mechanical joystick for dual-spool
control.
Wire control
P
EP
5
Spring centered. Detent in pos.3
Spring centered. Detent in pos.2
Spring centered. Pressure point in
pos.5
10
12
14
18
PP Pneumatic proportional
Cylinder ports facing up
Cylinder ports facing down
Series CV 110Directional Control Valve
9
Performance Curves
Series CV 110Directional Control Valve
10
Assembly DimensionsValve with Encased Hand Lever (S5) CV 110 Assembly Dimensions
- 11 -
Valve withEncased Hand Lever
Series CV 110Directional Control Valve
11
Assembly DimensionsValve with Mechanical Joystick (JS)
Series CV 110Directional Control Valve
12
Assembly DimensionsValve with Electro-Hydraulic Proportional Spool Control
Series CV 110Directional Control Valve
13
Accessories
High pressure carry-over adapter, should be installed in the T1-port when two or morevalves are used in the same circuit. T2 mustthen be connected to Tank
Tank port reduction adapter, can be installed in the T1-port when the thread size is to be reduced.
Part No.10534-4S Type BSP ½″ to BSP ⅜″Part No.10348-4S
Part No.10536-4S SAE # 10 to SAE # 8Part No.10349-4S
Standard Lever :
Other lengths on request.
Part No. 10347-4S
Lever
Series CV 110Directional Control Valve
14
Order Code
Series CV 126Directional Control Valve
3
Contents
General Information
Technical Data
Spool Options
Main Relief Valves and Secondary Valves
Spool Controls
Performance Curves
Assembly Dimensions
Accessories
Order Code
Page 4
Page 5
Page 6-8
Page 9
Page 10-11
Page 12
Page 13
Page 14
Page 15
Series CV 126Directional Control Valve
4
General Information
The CV 126 open valve is a parallel circuit valve which is designed to operate in open center hydraulic systems up to pressures of 320 bar (4600 psi) and flow rates of up to 50 l/min (13 USgpm).
The CV 126 on demand LS version is a valve which is designed to operate with a variable pump and in a closed center system up to a pressure of 320 bar (4600 psi) and flow rates up to 50 l/min (13 USgpm).
The CV 126 valve serie offers the OEM the selection of a number of spools for optimal spool control at any load as well as a wide range of spool controls for different applications.
Some of the CV 126’s main advantages are :
l 6 sections in a monoblock configuration
l Load check valves for each section
l Open & closed center option
l Direct acting main relief valve for fast response time
l Power Beyond capability
l Available with 4th position float spool
l Available with 4th position regenerative spool
l Direct acting joysticks with integrated 4th position for both float and regenerative functions
The CV 126 valve can be equipped with the following differential or pilot operated relief valve functions:
l Main relief valve
l Cylinder port relief valve
l Combined cylinder port relief and anti-cavitation valve
BSP and SAE threads are standard and the following threads can be supplied upon request:
l Metric
l NPTF (SAE>NPT adaptor)
Series CV 126Directional Control Valve
5
Technical Data
Max pressure setting
Main relief valveTank Line
Flow rates
Max flow A/B
Temperature range
Standard seals
Spool leakage at
100 bar (1450 psi) and 46mm²/s (cSt)216 SSU viscosity A and B port
Filtration
Contamination level equal to or better then
Viscosity
Recommended operatingviscosity rangeStart viscosity up to
Weight
CV 126
Operating force required for spool movement
Spring centeredDetent inDetent out
Number of work sections
bar
32010
lpm
50
°C
-40 to +80
cm³/min
2
19/16 according to ISO 4406
mm²/s (cSt)
10-4001000
kg
14
N
130230200
6
psi
4600145
USgpm
13
°F
-40 to +176
inch³/min
0.12
NAS 1638-class 10
SSU
47 - 18754687
lbs
31
lbf
295245
Series CV 126Directional Control Valve
6
Spool Options
Open Center
A B
P TA B
P T
A B
P T
A B
P T
A B
P T
A B
P T
A B
P TA B
P TA B
P T
Part No. Spool type Type Symbol SP-No.
10573-3B 2SA SP-10573-3B
10574-3B 2XA Single acting A port SP-10574-3B
10309-3B 3X DA + float SP-10309-3B
10308-3B 3S SP-10308-3B
10307-3B 3R SP-10307-3B
10575-3B 4X Motor spool SP-10575-3B
10576-3B 4S SP-10576-3B
10310-3B 8R SP-10310-3B
10311-3B 8S SP-10311-3B
DA + floatwith metering
DA + floatwith metering
Motor spoolwith metering
DA + regenwith metering
DA + regen with metering
SPOOL FOR OPEN CENTERED VALVES
Single acting A portwith metering
10709-3B 1S SP-10709-3BDAwith metering
A B
P T
Series CV 126Directional Control Valve
7
Spool Options
A-B G ⅜ 9/16-18 (SAE 6) M16x1.5
Inlet
Port sizes BSP UNF Metric
Tank
Cylinder ports
P1 G ⅜ ¾-16 (SAE 8) M18x1.5
P2 G ⅜ ¾-16 (SAE 8) M18x1.5
P3 G ⅜ ¾-16 (SAE 8) M18x1.5
T1 G ½ ⅞-14 (SAE 10) M22x1.5
T2 G ⅜ ¾-16 (SAE 8) M18x1.5
T3 G ⅜ ¾-16 (SAE 8) M18x1.5
STANDARD THREADS
A B
P T
A B
P T
A B
P T
A B
P T
A B
P T
A B
P T
Part No. Spool type Type Symbol SP-No.
10577-3B 2RALS SP-10577-3B
10578-3B 2SALS SP-10578-3B
10548-3B 3RLS SP-10548-3B
10549-3B 3SLS SP-10549-3B
10551-3B 8SLS SP-10551-3B
10550-3B 8RLS SP-10550-3B
DA + floatwith metering
DA + regenwith metering
SPOOLS FOR LOAD SENSING OPTION
Single actingwith metering
Single actingwith metering
DA + floatwith metering
DA + regenwith metering
11590-3B 1SLS SP-11590-3BDAwith metering
A B
P T
Series CV 126Directional Control Valve
8
Spool Options
[1.19]30.1
M8x1.25
M8x
125
53[2
.09]
64[2
.52]
[2.05]52
[2.00]50.8
[3.86]98
45.8[1.80]
[2.32]59
Code A-sideType B-side CodeType
9
11
13
S5
S6
W
Spring centered.
Detent in pos.1,2 and 3
Spring centered. Detent in pos.4
Spring centered. Detent in pos.
3 and 4
Spring centered. Detent in position
2 and 4
Pneumatic on/off
Electropneumatic on/off.
12V/270mA alt.24V/150mA.
Hirschmann connector is standard.
Other connectors are available on request.
Hand lever.Encased
Mechanical joystick for dual-spool
control.
Wire control
P
EP
5
Spring centered. Detent in pos.3
Spring centered. Detent in pos.2
Spring centered. Pressure point in
pos.5
10
12
14
18
PP Pneumatic proportional
For different Joystick configuration including Float and Regen functions please see page 10 and 11.
[1.3
0]33
[3.23]82
Series CV 126Directional Control Valve
9
Main relief valve. Differential operated relief valve for the main circuit. Fixed pressure setting.
Cylinder port mounted secondary valves.Relief valve. Differential operated port relief valve preventing pres-sure peaks. Fixed pressure setting.
Anti-cavitation valve. Check valve used to level negative pressures that can occur in the cylinder ports.
All cylinder port valves are mounted on the opposite side of the port used.
Main Relief Valve & Secondary Valve
Relief anti-cavitation valve. Works as both port relief and anti-cavitation valve.
Graphs valid for 25 mm²/s (cSt)(117 SSU) and 70 ba (1000 psi)
Order code: A
Order code: CA+pressure setting
Order code: C+pressure setting
Order code: RV+pressure setting
Series CV 126Directional Control Valve
10
Spool Controls
I
IV
II
III
I
IV
II
III
PORTS UP PORTS DOWN
1. Check port/hose orientation
Ports up
Ports down
3. Valve mounting holes
Through casting holes Threaded bottom holes
2. Fill in functions (handwrite)
Lift
Lower
Float
Curl in
Curl out
Regen
Please fill in corresponding Roman numerals
Joystick Specification - Horizontal mounting
Series CV 126Directional Control Valve
11
Spool Controls
PORTS LEFT PORTS RIGHT
1. Check port/hose orientation
Ports left
Ports right
3. Valve mounting holes
Through casting holes Threaded bottom holes
2. Fill in functions (handwrite)
Lift
Lower
Float
Curl in
Curl out
Regen
Please fill in corresponding Roman numerals
I
IVIII
II
I
IV
II
III
Joystick Specification - Vertical mounting
Series CV 126Directional Control Valve
12
Performance Curves
Series CV 126Directional Control Valve
13
Assembly DimensionsValve with a combination of Mechanical Joystick and Encased Hand Lever
Series CV 126Directional Control Valve
14
Accessories
CV 110 Accessories
- 14 -
Accessories
High pressure carry-over adapter, shouldbe installed in the T1-port when two or morevalves are used in the same circuit. T2 mustthen be connected to Tank
Tank port reduction adapter, can beinstalled in the T1-port when the thread size isto be reduced.
Type BSP Type BSP ½″ to BSP ⅜″Part No.10534-4S Part No.10348-4S
Type UNF SAE # 10 to SAE # 8Part No.10536-4S Part No.10349-4S
Lever
Standard Lever :
Part No. 10347-4S
Other length on request.
CV 110 Accessories
- 14 -
Accessories
High pressure carry-over adapter, shouldbe installed in the T1-port when two or morevalves are used in the same circuit. T2 mustthen be connected to Tank
Tank port reduction adapter, can beinstalled in the T1-port when the thread size isto be reduced.
Type BSP Type BSP ½″ to BSP ⅜″Part No.10534-4S Part No.10348-4S
Type UNF SAE # 10 to SAE # 8Part No.10536-4S Part No.10349-4S
Lever
Standard Lever :
Part No. 10347-4S
Other length on request.
CV 110 Accessories
- 14 -
Accessories
High pressure carry-over adapter, shouldbe installed in the T1-port when two or morevalves are used in the same circuit. T2 mustthen be connected to Tank
Tank port reduction adapter, can beinstalled in the T1-port when the thread size isto be reduced.
Type BSP Type BSP ½″ to BSP ⅜″Part No.10534-4S Part No.10348-4S
Type UNF SAE # 10 to SAE # 8Part No.10536-4S Part No.10349-4S
Lever
Standard Lever :
Part No. 10347-4S
Other length on request.
High pressure carry-over adapter, should be installed in the T1-port when two or morevalves are used in the same circuit. T2 mustthen be connected to tank
Tank port reduction adapter, can be installed in the T1-port when the thread size is to be reduced.
Part No.10534-4S Type BSP ½″ to BSP ⅜″Part No.10348-4S
Part No.10536-4SSAE # 10 to SAE # 8Part No.10349-4S
Standard lever :
Other lengths on request.
Part No. 10347-4S
Lever
Series CV 126Directional Control Valve
15
Order Code
6
Series CV 300Directional Control Valve
2
Contents
General Information
Technical data
Dimensions
Secondary Valves
Cylinder port mounted secondary valves
Spool - Control characteristics
Spool Controls
Order Code
Page8
Page 9-10
Page 11-12
Page 3
Page 4
Page 5
Page 6
Page 7
Series CV 300Directional Control Valve
3
General Information
The CV 300 is a modular monoblock valve which is available in 1 to 4 and 6 sections, with the option of additional spool functions by using a High pressure carry-over fitting (Power Beyond).The valve is designed for a maximum working pressure of 320 bar (4600 psi) with a flow from 40 to 140 l/min (9-37 USGpm.).
The CV 300 valve offers its user optimised characteristics with regard to function, capacity and quality. It is designed with the machine builders high demands of cost effectiveness, function and need of exceptionally good load maneuverbility in mind. Suitable areas of use are forklift trucks, lorry mounted cranes, dumpers, loaders, excavators and other equipment where precise load control is required.Although the valves external dimensions are small, it does allow high internal flows and can be equipped with a large number of accessories as standard. The uniquely designed canal system results in exceptionally low pressure drops leading to improved performance and longer life not only of the control valve but also of the other components in the hydraulic system.
The CV 300 is manufactured using the highest quality alloy cast iron which in combination with NIMCO’s advanced machining and control methods assures the precise accuracy of every component. Each valve is tested and the results documented prior to despatch.
Minimised spool leakage.Hard chromium plated spools, low friction and a specially developed honing method gives absolute minimum spool leakage of the valve.
Easy assembly.The valve has two pressure inlets and two tank outlets allowing pipes and hoses to be connected either from the side or top of the valve.
Excellent load control.CV 300 can be fitted with the standard load control spools or with specially designed spools for specific flows, each of which is designed to provide optimum control characteristics within its flow range. On request, special spools can be designed for special functions.
Full utilisation of the spool stroke. The optimised soft maneuver grooves integrated in each spool and the precise machining of every component allows the entire stroke of the spool to be used. This allows full control of the load whether the operator is using very little or full flow capacity. In addition the movement of any spool in any direction will give the same speed of machine function, enhancing security and reliability.
Multifunctional control.Several spools can be operated at the same time even when very large differences in load are at hand due to the utilisation of the differential pressure built up inside the valve during operation.
Uniform and low lever forces.By combining the unique design features of the valve body and the spools, an excellent balance of the dynamic forces is achieved throughout the entire pressure and flow range. This keeps spring forces at a minimum and makes the valve very easy to operate by hand lever as well as when any of the NIMCO’s remote control valves are used.
Wide range of accessories.The CV 300 offers a wide range of possibilities by using existing and future accessory valves. Also a wide range of spool and remote controls such as single or joystick wire controls, pneumatic and hydraulic proportional or on/off controls are available.
Series CV 300Directional Control Valve
4
Technical Data
Max. pressure setting
Main relief valvePort relief valve Tank line
Flow rates
Maximum for the valve
Temperature range Standard seals
Spool leakage at
100 bar (1450 psi) and 46 mm²/s (cSt)(117 SSU) viscosity A and B port
Filtration
Contamination level equal to or better then
Viscosity
Recommended operationgviscosity rangeStart viscosity up to
Weight
CV 301 CV 302 CV 303 CV 304 CV 306
bar
32030010
l/min
140
° C
-40 to +80
cm³/min
Max 10
18/14 according to ISO 4406
mm²/s
10-4001000
Kg
8.511.715.919.828.2
psi
46004200150
US GPM
37
°F
-40 to +176
inch³/min
Max. 0.6
NAS 1638-class 10
cSt
47 - 18754687
lbs
18.92635.34462.7
Performance curvesPressure drops at 25 mm2/s (cSt) (117 SSU) viscosity, 50°C (122°F) temperature and standard spool.
Series CV 300Directional Control Valve
5
DimensionsEuropean view setting
Dimensions
CV 301CV 302CV 303CV 304CV 306
L1 mm (inch)
126 (4.96)176 (6.93)226 (8.90)276 (10.87)376 (14.80)
L2 mm (inch)
100 (3.94)150 (5.91)200 (7.87)250 (9.84)350 (13.78)
Port Size
A, B
P1, P2, T2
T1
BSP
3/4’’
3/4’’
1’’
Metric
M22 x 1.5
M22 x 1.5 M27 x 2
SAE
11/16-12 SAE12
11/16-12 SAE12
15/16-12 SAE16
Series CV 300Directional Control Valve
6
Secondary valves
Main relief valve. Differential operated relief valvefor the main circuit. Adjustable from 35 to 320 bar(500-4650 psi).
Check valve. Can be used when two or more valves are connected in series and operates with the same pressure. The first valve should then be equipped with a main relief valve RV and the subsequent valves with CV.
High pressure carry-over adaptors (Power Beyond) are available to serial connect the CV 300 with one or more control valves, available from NIMCO.
Tank port reduction adaptor, can be installed in the T1 port when the thread size is to be reduced.
Order code: RV+pressure setting
Order code: CV
Graphs valid for 25 mm2/s (cSt.)(117 SSU) 70 bar=1000 psi
Part No. 4S-6071
Part No. 4S-6020
Part No: 4S-1891 (BSP 1″ → ¾″)Part No: 4B-11599 (UNF 16 → 12)
Part No: 4S-1851 (BSP 1″ → ¾″)Part No: 4S-65251 (UNF 16 → 12)
Part No: 4S-1877 (BSP 1″ → ¾″)
Series CV 300Directional Control Valve
7
Relief valve. Differential operated port relief valve preventing pressure peaks. Fixed pressure setting from 35 to 320 bar (500-4650 psi).
Anti-cavitation valve. Checkvalve used to level underpressures that can occur in thecylinder ports.
Relief anti-cavitation valve.Works as both port relief andanti-cavitation valve.
P1 Cylinder port accessoryvalve blank.The plug is used when acylinder port accessorycavity should be blanked off.
P2 D/A to S/A conversion plug.This plug is used when a fitteddouble acting spool is to beused as a single acting functionwhile maintaining oil in boththe chambers of the cylinder.
Graphs valid for 25 mm2/s (cSt.)(117 SSU) 70 bar=1000 psi Order code: C+pressure setting
Order code: A
Order code: CA+pressure setting
Characteristics according to C and A.
Cylinder port mounted secondary valves
Part no. 4S-4226
Part no. 4S-4030
Part no. 4S-4070
Part no. 4S-4525
Part no. 610034
Series CV 300Directional Control Valve
8
Spool - Control Characteristics
All of NIMCO’s spools are designed for specific flow rates in order to achieve optimal load control characteristics and to fully utilise the spools entire stroke. By optimising the balance between spools and valve housing, spring forces are minimized and exact maneuvering is achieved. Besides the standard spools listed there are also spe-cial spools available. For further information concerning these types please contact your NIMCO representative.
Control Characteristics P-A(B), Spool S.
Pump flow 70 l/min (19 US Gpm).Viscosity 25 mm²/s (cSt) (117 SSU) Oil temp. 50° C (122° F).
1. Pressure in work port 50 bar (725 psi)
2. Pressure in work port 150 bar (2175 psi)
3. Pressure in work port 250 bar (3625 psi)
Spool type
4S
Order code Standard spool Part No.
2SB
2SA
1S
3B-6049
3B-6026
3B-6028
3B-6035
Motor
Single acting B-port
Single acting A-port
Double acting
Symbol
3S 3B-6070Double actingwith float position
Series CV 300Directional Control Valve
9
Spool Controls
Code A-sideType B-side CodeType
9
9M
10
10M
9S
S1
S7
S2
S5M
S6
Spring centered.
Marine version.
Detent in position 1, 2 and 3
Marine version
Spring centered with straight
through spool.
Detent in position1, 2, 3 and straight
through spool.
Spring centered.Detent in position 4.
Spool 3 only
Spring centered.Detent in position 3.
Joystick fordual-spool
control.
11
14
10S
Spring centered.Detent in pos. 3 and 4.
Spool 3 only.12
Spring centered.Detent in position 2.13
Spring centered.Detent in pos. 2 and 4.
Spool 3 only.15
Hand leververtical.
Link connection.
Hand leververtical, opposite direction.Link connection.Other length and hand knobs upon request.
Hand leverhorizontal.
Link connection.
Hand leververtical.
Encased.Marine version,in combinationwith 9M and
10M only.
Series CV 300Directional Control Valve
10
Spool Controls
Code A-sideType B-side CodeType
P
PP
H
HP
HD
3W
HD
Pneumatic on/off.
Pneumatic proportional.
Hydraulic on/off. Pilot pressure
6-15 bar 87-217 psi.
Electro-pneumatic on/off.
12v/270mA alt. 24v/150mA.
Hirschmann contact is standard.
Others are available on request.
Hydraulic on/off. Pilot pressure
6-15 bar 87-217 psi.
EP
HPD
Hydraulic proportional. Pilot pressure
6-15 bar 87-217 psi.
Hydraulic proportional. Pilot pressure
6-15 bar 87-217 psi.
HPD
HD and HPDcannot be
combined withany other spool
controls.
Wire control for3-position spool.
Wire control for4-position spool.
Spool 3 only.
4W
Series CV 300Directional Control Valve
11
Order Code
EXAMPLE 1:Spool 3 is double acting with float position (code 3), spring centered with detent for the float position(code 11) and equipped with a hand lever (code S1).Spool 2 is double acting with integrated load holding check valves (code 5), spring centred (code 9), and equipped with a cylinder port relief valve in port B(code C) and hand lever (code S1).
Spool 1 is a double acting motor spool (code 4), spring centred (code 9) and equipped with a hand lever (code S1).
The valve is fitted with a main relief valve (code RV), pressure port P2 and tankport T2 are left open for hose connection.
Order code:CV303-RV210-P2-1S9.S1xx-5S9.S1xC140--3S11.S1xx-x-T2-G
EXAMPLE 2:This valve has a double acting spool (code 1), which is spring centered (code 9), two cyl. port/anti-cavitation valves in both cyl. ports (code CA) and equippedwith a hand lever (code S1).
The valve is not fitted with a main reliefvalve(code CV instead of RV), pressureport P2 and tank port T2 are left open forhose connection. A high pressure carryoveradaptor is fitted in the T1 port.
Order code:CV301-CV-P2-1S9.S1CA140CA95-S-T2-G
Series CV 300Directional Control Valve
12
Order Code
Series CV 400 - UnibodyDirectional Control Valve
2
Hydraulic systemsContents
General Information
Technical Data
Performance Curves
Dimensions - Basic Valve
Dimensions - Unibody
Secondary Valve
Spools
Spool Controls
Accessories
Order Code
Appendix
Page 9
Page 10
Page 11-12
Page 13
Page 14
Page 15
Page 3-4
Page 5
Page 6
Page 7
Page 8
Series CV 400 - UnibodyDirectional Control Valve
3
Hydraulic systemsGeneral Information
The CV 400 Unibody is a modular monoblock valve which is available in 1 to 4 sections, with the option of additional spool functions by using a carry-over fitting (Power Beyond).The valve is designed for a maximum working pressure of 320 bar (4600 psi) with a flow from 15 to 80 l/min (4-21 USgpm).
The CV 400 Unibody valve offers its user optimized characteristics with regard to function, capacity and quality. It is designed with the machine builders high demands of cost effectiveness, function and need of exceptionally good load maneuverability in mind. Suitable areas of use are forklift trucks, cranes, loaders and other equipment where precise load control is required.Although the valve’s external dimensions are small, it will allow high internal flows and can be equipped with a large number of accessories as standard. The uniquely designed canal system results in exceptionally low pressure drops leading to improved performance and longer life not only of the control valve but also of the other components in the hydraulic system.
The CV 400 Unibody is manufactured using the highest quality alloy cast iron which in combination with NIMCO’s advanced machining and control methods assures the precise accuracy of every component. Each valve is tested and the results documented prior to dispatch.
UnibodyThe Unibody system is designed to give the valve user maximum flexibility and economy. The system comprises of a standard valve onto which a number of secondary valves can be mounted. Any combination of valves, already available in the program, and future developments in reponse to customer requests, can be mounted onto the valve in any preferred combination. Having all secondary valves directly on the valve, piping and hosing costs are kept to a minimum. Simultaneously, the user is allowed flexibility in designing the hydraulic system for each machine. The valve can be delivered with the Unibody functions already fitted to the valve or simply prepared for any of the large number of standard Unibody blocks that are available.
Minimized spool leakage.Hard chromium plated spools, low friction and a specially developed honing method provide for absolute minimum spool leakage of the valve.
Easy assembly.The valve has two pressure inlets and three tank outlets allowing pipes and hoses to be connected either from the side or top of the valve.
Series CV 400 - UnibodyDirectional Control Valve
4
Hydraulic systems
Excellent load control.CV 400 Unibody is delivered with a wide range of standard spools each of which is designed to provide optimum control characteristics within its flow range. On request, special spools can be delivered for other flow rates.
Full utilization of the spool stroke. The optimized soft maneuver grooves integrated in each spool and the precise machining of every component allow for the entire stroke of the spool to be used. This allows full control of the load whether the operator is using very little or full flow capacity. In addition, the movement of any spool in any direction will give the same speed of machine function, enhancing security and reliability.
Multifunctional control.Several spools can be operated at the same time even when very large differences in load are at hand due to the utilization of the differential pressure built up inside the valve during operation.
Uniform and low lever forces.By combining the unique design features of the valve body and the spools, an excellent balance of the dynamic forces is achieved throughout the entire pressure and flow range. This keeps spring forces at a minimum and makes the valve very easy to operate by hand lever as well as when any of the NIMCO’s remote control valves are used.
Wide range of accessories.The CV 400 Unibody offers a wide range of options by using existing and future accessory valves. Also a wide range of spool and remote controls such as single or joystick wire controls, pneumatic and hydraulic proportional or on/off controls are available.
General Information
Series CV 400 - UnibodyDirectional Control Valve
5
Hydraulic systemsTechnical Data
Max. pressure setting
Main relief valvePort relief valveTank line
Flow rates
Maximum for the valve
Temperature range
Standard seals
Spool leakage at
100 bar (1450 psi) and25 mm²/s (cSt)(117 SSU) viscosityA and B port
Filtration
Contamination level equal to or better then
Viscosity
Recommended operating viscosity rangeStart viscosity up to
Weight
CV 401CV 402CV 403CV 404
Weight/Unibody option
SingleDouble
Operating force necassary to move the spool
Spring centeredDetent inDetent out
bar
32033010
l/min
80
°C
-40 to +80
cm³/min
4
18/14 according to ISO 4406
mm²/s(cSt)
10-4001000
kg
4.46.68.710.9
0.30.75
N
130230200
psi
46504700145
USgpm
21
°F
-40 to +176
inch³/min
0.24
NAS 1638-class 10
SSU
47-18754687
lbs
9.714.519.224
0.71.6
lbf
295245
Series CV 400 - UnibodyDirectional Control Valve
6
Hydraulic systems
Pressure Drop PgT
Pressure Drop PgA(B)
Pressure Drop A(B)gT
Performance Curves
Series CV 400 - UnibodyDirectional Control Valve
7
Hydraulic systemsDimensions - Basic Valve
Dimensions
CV 401
CV 402
CV 403
CV 404
L1 mm (inch)
101 (3.98)
144 (5.67)
187 (7.36)
230 (9.06)
L2 mm (inch)
77 (3.03)
120 (4.72)
163 (6.42)
206 (8.11)
Port size
A,B
P1, P2, T2, (T3)
T1
BSP
1/2”
1/2”
3/4”
Metric
M 18 x 1.5
M 18 x 1.5
M 22 x 1.5
SAE
3/4-16 SAE8
3/4-16 SAE8
1 1/16-12 SAE12
Series CV 400 - UnibodyDirectional Control Valve
8
Hydraulic systemsDimensions - Unibody
Dimensions
CV 401
CV 402
CV 403
CV 404
L1 mm (inch)
101 (3.98)
144 (5.67)
187 (7.36)
230 (9.06)
L2 mm (inch)
77 (3.03)
120 (4.72)
163 (6.42)
206 (8.11)
Port size
A,B
P1, P2, T2, (T3)
T1
BSP
1/2”
1/2”
3/4”
Metric
M 18 x 1.5
M 18 x 1.5
M 22 x 1.5
SAE
3/4-16 SAE8
3/4-16 SAE8
1 1/16-12 SAE12
Series CV 400 - UnibodyDirectional Control Valve
9
Hydraulic systemsSecondary Valve
Main relief valve. Differential operated relief valve for themain circuit. Adjustable from 35 to 320 bar (500-4600 psi).
Order code: RV+pressure setting
Part No: 4S-4076
Cylinder port mounted secondary valves.Relief valve. Differential operated port relief valve preventing pressurepeaks. Fixed pressure setting from 35 to 330 bar (500-4700 psi).
Part No: 4S-4030
Anti-cavitation valve. Check valve used to level negative pressuresthat can occur in the cylinder ports.
Part No: 4S-4226
Check valve. Can be used when two or more valves are connected in series and operated with the same pressure. The first valve should then be equipped with a main relief valve RV and the subsequent valves with CV.
Graphs valid for25 mm2/s (cSt.)
(117 SSU).70 bar = 1000 psi
Part No: 4S-4094
Relief anti-cavitation valve. Works as both port relief and anti-cavitation valve.
Characteristics accordingto C and A.
Order code: CV
Order code: C+pressure setting
Order code: A
Order code: CA+pressure setting
Part No: 4S-4070
Series CV 400 - UnibodyDirectional Control Valve
10
Hydraulic systems
All of NIMCO’s spools are designed for specific flow rates in order to achieve optimal control characteristics and to fully utilize the spool’s entire stroke. By optimizing the balance between spools and valve housing, spring forc-es are minimized and exact maneuvering is achieved. In addition to our standard spools are there a wide range of specially designed spools to maximize load control at different pump flows and applications. Please contact our factory or any authorized distributor for further information.
Spool type Order code Standard spool Part No.
2SB
2SA
1S
3B-4122
3B-4004
3B-4002
Single acting B
Single acting
Double acting
Symbol
5S 4S-40087Double acting withbuilt in check valves
Spools
3S 3B-4061
6S 3B-40068Regenerative
4S 3B-4035Motor
Double actingwith float position
Controlcharacteristics
Standard spoolPump flow 50 l/min(13.2 USgpm).
P-A/B1.Press. 50 bar (725 psi)2.Press. 150 bar (2175 psi)3.Press. 250 bar (3625 psi)
A/B-TViscosity25 mm²/s (cSt)50
Series CV 400 - UnibodyDirectional Control Valve
11
Hydraulic systemsSpool Controls
Code A-sideType B-side CodeType
9
9M
10
10M
10S
S1
S5
S5M
S6
Spring centered.
Marine version.
Detent in position 1, 2 and 3
Marine version
Detent in pos.1, 2, 3 and
straightthrough spool.
Spring centered.Detent in pos. 4.
Spring centered.Detent in pos. 3
and 4.
Spring centered.Detent in pos. 2
and 4. Joystick fordual-spool
control.
12
15
11
Spring centered.Detent in pos. 2.13
Spring centered.Detent in pos. 3.14
Spring centered.Detent in pos. 1,
2, 3 and 4.16
Hand leververtical.
Encased.Marineversion.
Hand leverhorizontal.
Hand leververtical.
Encased.
Hand leververtical.
Other lengthson request.
S2
Standard Control
Series CV 400 - UnibodyDirectional Control Valve
12
Hydraulic systemsSpool Controls
Code A-sideType B-side CodeType
EDA
EHP
EP
EHP
3W
Electric directacting solenoid
on - off.12 V / 3.6 A24 V / 1.8 A
Electro-hydraulicproportional.
12V/1.5 A24V/0.75 A
Electropneumaticon-off.
12V/270mA alt.24V/150mA.
External kickout.From pos. 3 to
pos. 1.EK
Electro-hydraulicproportional.
12V/1.5 A24V/0.75 A
with manual hand lever override
Hydraulic on/off.Pilot pressure
6-15 bar (87-217 psi)H
Hydraulicproportional.Pilot pressure
6-15 bar (87-217 psi)HP
Pneumaticon/off.P
Pneumaticproportional.PP
4WWire control for4-position spool.
Wire control for3-position spool.
Series CV 400 - UnibodyDirectional Control Valve
13
Hydraulic systemsAccessories
High pressure carry-over adaptor (Power Beyond), should be installed in the T1-port when two or more valves are used in the same circuit. T2 must then be connected to tank.
Tank port reduction adaptor, can be installed in the T1 port when the threadsize is to be reduced from BSP 3/4” to BSP 1/2” or from SAE12 to SAE 8.
Series CV 400 - UnibodyDirectional Control Valve
14
Hydraulic systemsOrder Code
Series CV 400 - UnibodyDirectional Control Valve
15
Hydraulic systemsAppendix
CV601/eng/WEB/R0603
Series CV 601Directional Control Valve
2
Contents
General Information
Technical data
Performance Curves
Dimensions
Relief and Check Valves
Spool - Control characteristics
Spool Controls
Order Code
Page 8
Page 9-10
Page 11-12
Page 3
Page 4
Page 5
Page 6
Page 7
Series CV 601Directional Control Valve
3
General Information
The CV 601 is a robust single spool monoblock valve designed to offer its user very low pressure drops and with the option of additional spool functions by using a High Pressure Carry-Over Adaptor (Power Beyond).The valve is designed for a maximum working pressure of 320 bar (4600 psi.) with a flow from 25 to 180 l/min (6.6-48 US GPM).
The CV 601 valve offers its user optimised characteristics with regard to function, capacity and quality. It is designed with the machine builders high demands of cost effectiveness, function and need of exceptionally good load maneuverbility in mind. Suitable areas of use are dumpers, loaders and other equipment where precise load control is required.
Although the valves external dimensions are small, it does allow high internal flows and can be equipped with a large number of accessories as standard. The uniquely designed canal system results in exceptionally low pressure drops leading to improved performance and longer life not only of the control valve but also of the other components in the hydraulic system. It can be fitted with two main relief valves to allow for up to 180 l/min (48 US GPM) flow.
The CV 601 is manufactured using the highest quality alloy cast iron which in combination with NIMCO’s advanced machining and control methods assures the precise accuracy of every component. Each valve is tested and the results documented prior to despatch.
Minimised spool leakage.Hard chromium plated spools, low friction and a specially developed honing method gives absolute minimum spool leakage of the valve.
Easy assembly.The valve has two pressure inlets and two tank outlets allowing pipes and hoses to be connected either from the side or top of the valve.
Excellent load control.The CV 601 has load check valves and can be fitted with both standard spools and with specially designed spools for specific metering needs which will provide optimum control characteristics.
Full utilisation of the spool stroke. The optimised soft maneuver grooves integrated in each spool and the precise machining of every component allows the entire stroke of the spool to be used. This allows full control of the load whether the operator is using very little or full flow capacity. In addition the movement of any spool in any direction will give the same speed of machine function, enhancing security and reliability.
Uniform and low lever forces.By combining the unique design features of the valve body and the spools, an excellent balance of the dynamic forces is achieved throughout the entire pressure and flow range. This keeps spring forces at a minimum and makes the valve very easy to operate by hand lever as well as when any of the NIMCO’s remote control valves are used.
Wide range of accessories.The CV 601 offers a wide range spool and remote controls such as single wire controls, pneumatic and hydraulic proportional or on/off controls are available.
Series CV 601Directional Control Valve
4
Technical Data
Max Pressure Setting
Main Relief ValveTank line
Flow rates
Maximum for the valve
Temperature Range
Standard seals NBR BUNA-N seals
Internal Leakage A(B) to T
100 bar (1450 psi) and 46 mm²/s (cSt)(117 SSU) viscosity A and B port
Filtration
Contamination level equal to or better then Viscosity
Recommended operatingViscosity rangeStart viscosity up to
Weight
CV 601
bar
32010
l/min
180
° C
-40 to +80
cm³/min
Max 10
18/14 according to ISO 4406
mm²/s
10-4001000
Kg
7.3
psi
4600145
US GPM
48
°F
-40 to +176
inch³/min
0.6
NAS 1638-class 10
cSt
47 - 18754687
lbs
16.1
Series CV 601Directional Control Valve
5
Performance Curves
Pressure Drop PT
Pressure Drop PA(B)
Pressure Drop A(B)T
30 60 90 120 150 180
5
10
15
Flow L/min
Bar
145
75
220
20 403010
psi
US gpm20
PT
0
30 60 90 120 150 180
5
10
15
Flow L/min
Bar
145
75
220
20 403010
psi
US gpm20
0
A(B)T
30 60 90 120 150 180
5
10
15
Flow L/min
Bar
145
75
220
20 403010
psi
US gpm20
0
With check-valve
Without check-valve
PA(B)
PA(B)
Series CV 601Directional Control Valve
6
DimensionsUS view setting
Series CV 601Directional Control Valve
7
Relief and Check Valves
One main relief valve. Differential operated relief valve for the main circuit. Adjustable from 35 to 320 bar (500-4600 psi).
Tank Port Reduction Adaptator can be installed in the T1 port when the thread size is to be reduced.Part No: 4S-1891 (BSP 1″ → ¾″)Part No: 4B-11599 (UNF 16 → 12)
Check valve. Can be used when two or more valves are connected in series and operates with the same pressure. The first valve should then be equipped with a main relief valve RV and the subsequent valves with CV.
High Flow OptionDouble Main Relief Valve OptionRecommended for high flow (over 120 l/min).
Part No: 4S-11362
Part No: 4S-6020
Part No: 4S-6020
High Pressure Carry-Over Adaptators (Power Beyond) are available to serial connect the CV 601 with one or more control valves.Part No: 4S-1851 (BSP 1″ → ¾″)Part No: 4S-65251 (UNF 16 → 12)
Part No: 4S-1877 (BSP 1″ → ¾″)
Part No: 4S-6020
Series CV 601Directional Control Valve
8
Spool - Control Characteristics
All of NIMCO’s spools are designed for specific flow rates in order to achieve optimal load controls characteris-tics and to fully utilise the spools entire stroke. By optimising the balance between spools and valve housing, spring forces are minimized and exact maneuvering is achieved. Besides the standard spools listed designed for maximum flow and minimum pressure drop there are also special spools available. For further information concerning these type of spools please contact your NIMCO representative.
Spool type
4X
Order code Standard spool Part No.
2XB
2XA
1X
3B-6073
3B-6050
3B-6111
3B-6037
Motor
Single acting B-port
Single acting A-port
Double acting
Symbol
Control Characteristics P-A(B), Spool S.
Pump flow 70 l/min (19 US Gpm).Viscosity 25 mm²/s (cSt) (117 SSU) Oil temp. 50° C (122° F).
1. Pressure in work port 50 bar (725 psi)
2. Pressure in work port 150 bar (2175 psi)
3. Pressure in work port 250 bar (3625 psi)
Series CV 601Directional Control Valve
9
Spool Controls
Code A-sideType B-side CodeType
9
9M
10
10M
9S
S1
S7
S2
S5
S5M
Spring centered.(Standard Spool
Control)
Marine version.
Detent in position 1, 2 and 3
Marine version
Spring centered with straight
through spool
Detent in position 1, 2, 3 and
straight through spool.
Spring centered.Detent in position 2.
Spring centered.Detent in position 3.
Hand leververtical.
Link connection.
Hand leververtical, opposite
direction.Link connection.
Other length and hand knobs upon request.
Hand leververtical encased.Marine version in combination with 9M and 10 M only.
Hand leverhorizontal.
Link connection.
13
14
10S Hand lever vertical.Encased.
(Standard Spool Control)
Series CV 601Directional Control Valve
10
Spool Controls
Code A-sideType B-side CodeType
P
PP
H
HP
HD
3W
HD
Pneumatic on/off.
Pneumatic proportional.
Hydraulic on/off. Pilot pressure
6-15 bar 87-217 psi.
Electro-pneumatic on/off.
12v/270mA alt. 24v/150mA.
Hirschmann contact is standard.
Others are available on request.
Hydraulic on/off. Pilot pressure
6-15 bar 87-217 psi. HD and HPD
cannot becombined with any other spool
controls.
EP
HPD
Hydraulic proportional. Pilot pressure
6-15 bar 87-217 psi.
Hydraulic proportional. Pilot pressure
6-15 bar 87-217 psi.
HPD
Wire control for 3-position spool.
Series CV 601Directional Control Valve
11
Order Code
Example 1This Directional Control Valve is equipped with one Main Relief Valve (code RV 150), a double acting spool (code 1X) with a spring centered spool con-trol (code 9) and an enclosed type hand lever control (code S5)
High Pressure Carry-Over Adaptor installed in the T1 port.
Series CV 601Directional Control Valve
12
Order CodeCo
py th
is pa
ge an
d use
as
your
tech
nical
orde
r for
m.
Stan
dard
Main
Pre
ssur
e Se
tting i
s don
e at 7
0 lpm
(1
6 US
GPM)
. Plea
se
clairly
indic
ate if
you w
ant
the M
RV pr
essu
re to
be
set a
t ano
ther fl
ow. CV
601
Sec
tion
1
BSP
GSA
E
SM
etric
M
Tank
por
t si
de T
1
to
p T2
Pum
p in
let
s
ide
P1
t
op P
2
Mai
n re
lief v
alve
RV
+ p
ress
ure
setti
ngor C
heck
Val
ve
CV
Opt
iona
l 2n d
Mai
n re
lief v
alve
if
flow
is o
ver 1
20 l/m
i nRV
+ p
ress
ure
settin
gif
not a
pplic
able
mar
k X
High
Pre
ssur
e Ca
rry-
Ove
r(P
ower
Bey
ond)
STh
read
Red
ucin
g A
dapt
or
R
Spoo
l con
trol
B-s
ide
code
pag
e 9-
10
Spoo
l con
trol
A-s
ide
code
pag
e 9-
10Sp
ool t
ype
code
pag
e 8
AT2
T1
B
P1
2nd
MR
V O
pti
on
al
MR
V
P2