Direction Control Valves
PILOT OPERATED CHECK VALVE
OUT
IN
PP
Pilot Check Valves
320
rr
/min
21MPa
H
H-4
Features
Specifications
qNormally, fluid is allowed to flow in a
single direction, just as with a stan-
dard check valve. Reverse flow can
be enabled, however, when the
check valve is pushed upwards by
external pilot pressure.
wVery compact configuration.
¡Handling
z
The following explains how to use the external
drain. Be sure to always use the external drain
type when back pressure is applied to fluid
outlet port side A during reverse flow as in the
circuit illustrated below.
x
Minimum pilot pressure is altered by input side
B pressure during reverse flow. Because of
this, operate the valve so pressure is at least
twice as high as the required pilot pressure
obtained using the minimum pilot pressure
characteristics.
c
Use the following table for specification when
a sub plate is required.
20–B–1–03G–CP
Nominal diameter (size)
Cracking pressure
1, 2
Auxiliary symbol
None: Standard
B: External drain type
F: With anti-shock mechanism (decompression type)
BF: With external drain, with shock-resistant mechanism
Mounting method
T: Screw connection type
G: Gasket type
Pilot check valve
Design number
Understanding Model Numbers
Model No.
Pipe
Diame-
ter
Recommended
Flow Rate
r/min
Weight
kg
Applicable
Valve Type
MCP-03-20
3/8 40 1.1
CP-G03-*-20
MCP-06-20
3/4 110 1.7
CP-G06-*-20
MCP-10-20
1
1
/
4
320 3.6
CP-G10-*-20
Model No.
Bolt Dimensions
Q'ty
Tightening Torque N
·
m{kgf
·
cm}
CP -G03-*-*-20
M8 × 45r
4 20 to 25{205 to 255}
-G06-
M10 × 55r
4 45 to 55{460 to 560}
-G10-
M10 × 65r
6 45 to 55{460 to 560}
Note) For mounting bolts, use 12T or equivalent.
Note) Weight values in parentheses are for the external drain type.
Model No
Nominal
Diameter
(Size)
Maximum
Working Pressure
MPa{kgf/cm
2
}
Maximum
Flow Rate
r/min
Cracking
Pressure
MPa{kgf/cm
2
}
Weight kg Area Ratio
Screw Mounting Gasket Mounting
T Type G Type Pilot Piston
Valve
Small
Valve
CP-T03-1-*-20
2
CP-G03-1-*-20
2
3/8
21{214}
40
0.2{2.0}
0.5{5.1}
3.8
( 4.7)
4.3
( 5.2)
1 0.35 0.05
CP-T06-1-*-20
2
CP-G06-1-*-20
2
3/4 110
0.2{2.0}
0.5{5.1}
7.0
( 8.2)
6.6
( 7.8)
1 0.37 0.03
CP-T10-1-*-20
2
CP-G10-1-*-20
2
1
1
/4 320
0.2{2.0}
0.5{5.1}
12.0
(14.3)
12.5
(14.8)
1 0.36 0.03
v
The following are the bundled mounting bolts.
B
A
B
A
DR
PP
OUT
IN
Normal form
External drain type
H
H-5
Direction Control Valves
CP-G**-*-*-20(Gasket Mounting)
PP
DR
IN
OUT
Rc1/4
Pressure gauge attachment port
Rc1/4
Rc1/4
2-Rc"D"
BC
BB
BA
LG LD
LF LC
LB LHLE
LA
BB
BD
N- DAx1 counterbore
DB holes
Rc1/4
Pressure gauge attachment port
BD
BC BC
BB
BA
LN
LM
LL
LK
LJ
LE
LD
LC
LB LHLF
LA
LG
BE
HC
HB
HA
6
6 pin
BF BF
φ
φ
φ
Sub Plate MCP-**-20
CP-T**-*-*-20(Screw Mounting)
Installation Dimension Drawings
Model No. LA LB LC LD LE LF LG LH BA BB BC BD D
CP-T03-*-(F)-20
146
106 61 46
30 15 –
10 84 65 54 32 3/8
CP-T03-*-B(F)-20
174 58 39 16
CP-T06-*-(F)-20
180
140 85 66
30 15 –
10 122 76 64 41 3/4
CP-T06-*-B(F)-20
212 62 43 16
CP-T10-*-(F)-20
225
178 108 85
35 15 –
12 150 95 85 58 1
1
/
4
CP-T10-*-B(F)-20
266 76 57 16
BH HA HB HC HD HE DA DB DC N P Q
106 68 35.5 33 30 19 14 9 14.7 4 8 3/8
124 79 41 38 30 19 17.5 11 22 4 10 3/4
138 100 52.5 50 40 29 17.5 11 30 6 10 1
1
/4
Note) Drain piping is not required for standard products.
Drain piping is required in the case of external drain type (B).
Model No. LA LB LC LD LE LF LG LH LJ LK LL LM LN LP BA BB BC BD BE BF BG
CP-G03-*-(F)-20
146
106 51 64 44
30
61 10 37 – – 16 7 – 82 64 23 18 32 65 126
CP-G03-*-B(F)-20
174 58
CP-G06-*-(F)-20
180
140 66 83
60.3
30
85 10
49.2 44.5
–
20.6 11.1
– 102
79.4 33.3
– 41 76 146
CP-G06-*-B(F)-20
212 62
CP-G10-*-(F)-20
225
178 85 105
84.1
35
108 12
67.5 62.7
42.05
24.6 16.6
120 118
96.8 44.5
– 58 95 159
CP-G10-*-B(F)-20
266 76
Direction Control Valves
H
H-6
Performance Curves
Cross-sectional Drawing
Pressure Loss Characteristics
Hydraulic Operating Fluid Viscosity 32mm
2
/s
CP-G**-*-20
Part No.
Part Name
1
2
3
4
5
6
7
8
9
Body
Cover
Piston
Poppet
Seat
Plug
Spring
Pin
O-ring
Note) O-ring 1B-** refers to JIS
B2401-1B-**.
Part No.
Part Name
10
11
12
13
14
15
16
17
O-ring
O-ring
O-ring
O-ring
Screw
Plug
Plug
Plate
Part No.
Part Name
9
10
11
12
13
14
15
16
Plug
Spring
Spring
Screw
Plug
Plug
Pin
O-ring
Part No.
Part Name
17
18
19
20
21
22
O-ring
O-ring
O-ring
O-ring
O-ring
Plate
CP-G**-*-BF-20
115192121318 5 178217 20614341011 9 16
***in the kit number is used for specification of the valve size.
Part No.
Part Name
1
2
3
4
5
6
7
8
Body
Cover
Poppet
Poppet
Piston
Seat
Rod
Bushing
Seal Part List (Kit Model Number DPS-***R)
Part No.
Part Name CP-G03-*-BF-20 CP-G06-*-BF-20 CP-G10-*-BF-20
Q'ty
16 O-ring 1B-P22 1B-P30 1B-P42 1
17 O-ring 1B-G25 1B-G40 1B-G55 1
18 O-ring 1B-P7 1B-P9 1B-P9 2
19 O-ring 1B-P9 1B-P9 1B-P9 2
20 O-ring 1B-P18 1B-G25 1B-G35 2
21 O-ring 1B-P18 1B-P30 1B-G45 1
***in the kit number is used for specification of the valve size.
Seal Part List (Kit Model Number DPS-***)
Part No.
Part Name
CP-G03-*-20 CP-G06-*-20 CP-G10-*-20 Q'ty
9 O-ring 1B-P18 1B-G25 1B-G35 2
10 O-ring 1B-G25 1B-G40 1B-G55 1
11 O-ring 1B-P7 1B-P9 1B-P9 2
12 O-ring 1B-P9 1B-P9 1B-P9 2
13 O-ring 1B-P22 1B-P30 1B-P42 1
0 1020304050
1.4
1.2
1.0
0.8
0.6
0.4
0.2
60
b
a
c
{10.2}
{12.2}
{14.3}
{8.2}
{6.1}
{4.1}
{2.0}
Flow rate r/min
Pressure Loss
MPa {kgf/cm
2
}
150 250200050100
a
b
c
1.4
1.2
1.0
0.8
0.6
0.4
0.2
{10.2}
{12.2}
{14.3}
{8.2}
{6.1}
{4.1}
{2.0}
Flow rate r/min
Pressure Loss
MPa {kgf/cm
2
}
300 5004000 100 200
b
a
c
1.4
1.2
1.0
0.8
0.6
0.4
0.2
{10.2}
{12.2}
{14.3}
{8.2}
{6.1}
{4.1}
{2.0}
Flow rate r/min
Pressure Loss
MPa {kgf/cm
2
}
25
{127}
2005
12.5
15
5.0 {51.0}
2.5 {25.5}
10.0 {102}
{76.5} 7.5
10
{51} {102} {153} {204} {255}
b
c
a
d
e
Minimum pilot pressure
MPa {kgf/cm
2
}
Reverse flow inlet side pressure
MPa {kgf/cm
2
}
CP-*06
CP-*10
CP-*03
Minimum Pilot Pressure Characteristics
Applicable Valve
Model No. Valve Open
Small Valve Open
CP-*03 a d
CP-*06 b e
CP-*10 c e
1812172111416 3 4567910 15 13
Applicable Valve Type
a. CP-*06-1 -*-20 Free Flow
b. CP-*06-2 -*-20
″
c. CP-*06- * -*-20 Reverse Flow
Applicable Valve Type
a. CP-*03-1 -*-20 Free Flow
b. CP-*03-2 -*-20
″
c. CP-*03- * -*-20 Reverse Flow
Applicable Valve Type
a. CP-*10-1 -*-20 Free Flow
b. CP-*10-2 -*-20
″
c. CP-*10- * -*-20 Reverse Flow