Motion control valves

CC..A type
counterbalance valves - 3 way

• For closed center

• Line mounting
• Non aff ected by back pressure
• From SAE10 to SAE20 cavities

Technical specifi cations and diagrams are measured with mineral oil of 46 cSt viscosity at 40°C (104°F) temperature.

CC10A CC12A CC16A CC20A

30 l/min 60 l/min 90 l/min 150 l/min
Nominal fl ow
(7.9 US gpm) (16 US gpm) (24 US gpm) (39.6 US gpm)
Max. pressure 350 bar (5100 psi)
80% of max. 0.25 cm3/min 0.25 cm3/min 0.25 cm3/min 0.25 cm3/min
Oil leakage
pressure setting (0.015 in3/min) (0.015 in3/min) (0.015 in3/min) (0.015 in3/min)
Fluid mineral based oil
Viscosity 10-200 cSt
Max level of
20/18/14 ISO4406
contamination

Fluid with NBR seals from -20°C (-4°F) to 80°C (176°F)

temperature with FPM seals from -20°C (-4°F) to 100°C (212°F)
Environmental temp. for
from -20°C (-4°F) to 50°C (122°F)
working conditions
Cavity SAE 10/3 SAE 12/3 SAE 16/3 SAE 20/3
Weight 0.280 kg (0.62 lb) 0.380 kg (0.84 lb) 0.720 kg (1.59 lb) 1.200 kg (2.64 lb)

NOTE - For different conditions, please contact Walvoil Sales Dpt.

A B C D

D Valve type
C
1 CC10A mm in mm in Nm lbft
4S 47.2 1.86 51 2.01 27 50 37 19
CC10A/
2 3 W 47.2 1.86 51 2.01 27 50 37 19
1
4S 73.5 2.89 60 2.36 32 80 59 24
2 CC12A/
3 4W 73.5 2.89 60 2.36 32 80 59 24
A B 4S 75 2.95 69 2.72 41 100 74 27
CC16A/
4W 75 2.95 69 2.72 41 100 74 27
4S 99.5 3.92 83.5 3.29 46 100 74 36
CC20A/
4W 99.5 3.92 83.5 3.29 46 100 74 36

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 Motion control valves
CC..A type Counterbalance valves - 3 way

Ordering codes and description composition _______________________________________________________

CC10A/4S2B

5 2 4 3

3 5 4

1 2

1 Cartridges 4 Pressure setting springs

TYPE CODE DESCRIPTION Standard setting is referred to 5 l/min (1.32 US gpm) flow
SAE cavity 10/3 TYPE CODE DESCRIPTION
CC10A/4S2B 0CC10002001 Screw type adjustment, pilo ratiio 1:4 For CC10A valve
pressure range 2 1 3ML1092502 Setting range 50-220 bar (725-3200 psi)
SAE cavity 12/3 red band
CC12A/4S2B 0CC12002000 Screw type adjustment, pilo ratiio 1:4 2 3ML1092300 Setting range 180-350 bar (2600-5100 psi)
pressure range 2 red band
SAE cavity 16/3 3 3ML1102800 Setting range 300-700 bar (4350-10150 psi)
CC16A/4S2B 0CC16002001 Screw type adjustment, pilo ratiio 1:4 red band
pressure range 2 For CC12A valve
SAE cavity 20/3 1 3ML1133201 Setting range 50-220 bar (725-3200 psi)
CC20A/4S0B 0CC20002001 Screw type adjustment. Setting range blue band
20-85 bar (290-1230 psi) and standard 2 3ML1133200 Setting range 180-350 bar (2600-5100 psi)
setting 50 bar (725) at 5 l/min (1.3 US gpm) red band
CC20A/4S1B 0CC20002000 Screw type adjustment. Pilot ratio 1:4 3 3ML1133500 Setting range 300-700 bar (4350-10150 psi)
Setting range 50-220 bar (725-3200 psi) yellow band
and standard setting 150 bar (2170) For CC16A valve
at 5 l/min (1.3 US gpm) 1 3ML1164000 Setting range 50-220 bar (725-3200 psi)
CC20A/4S2B 0CC20002002 Screw type adjustment. Pilot ratio 1:4 blue band
Setting range 100-300 bar (1450-4350 psi) 2 3ML1164001 Setting range 180-350 bar (2600-5100 psi)
and std. setting 150 bar (2170) at 5 l/min red band
(1.3 US gpm) 3 3ML1164002 Setting range 300-700 bar (4350-10150 psi)
yellow band
2 Adjustments
TYPE DESCRIPTION
5 Pilot ratio
S Screw TYPE DESCRIPTION
W Copped adjustment 4 1:4

3 Seals 6 Valve body

TYPE DESCRIPTION TYPE CODE DESCRIPTION
B NBR (Buna) Std configuration without addition SAE 10/3-G 3/8 3CC1030C11 Aluminium body for cavity 10 valve,
V For valve with FPM (Viton) o-ring seals, contact Sales G3/8 std thread
Dept. SAE 12/3-G 1/2 3CC1230D11 Aluminium body for cavity 12 valve,
G1/2 std thread
SAE 16/3-G 3/4 3CC1630E11 Aluminium body for cavity 16 valve,
G3/4 std thread
SAE 20/3-G 1 3CC2030F21 Steel body for cavity 20 valve,
G1 std thread
Note: aluminium body can stand up to 210 bar (3050 psi)
For steel bodies or different threading see from page 217

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Motion control valves
Counterbalance valves - 3 way CC..A type

___________________________________________________________________________________________
Rating diagrams

CC10A pressure drop vs flow CC12A pressure drop vs flow

0 2 4 6 8 10 (US gpm) 0 5 10 15 20 (US gpm)

(bar) 30 (psi) (bar) 20
(psi)
400 250
24 16
300 200

Pressure
2->3 12
18
Pressure

2->3
3->2 150
200
12 8
3->2
100
6 100 4 50
0 0 0 0
0 6 12 18 24 30 36 42 0 12 24 36 48 60 72 84
Flow (l/min) Flow (l/min)

CC16A pressure drop vs flow CC20A pressure drop vs flow

0 6 12 18 24 30 36 (US gpm) 0 6 12 18 24 30 36 (US gpm)

(bar) 25 (bar) 10
2->3 350 (psi) (psi)
2->3
20 300 8 120
250
15 6 90
Pressure

Pressure

200 3->2

10 150 4 60
3->2
100
5 2 30
50
0 0 0 0
0 20 40 60 80 100 120 140 0 30 60 90 120 150
Flow (l/min) Flow (l/min)

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