497
Check/Pilot Controlled Check Valves
Check/Pilot Controlled Check Valves
25
(3630)
498
504
25
(3630)
02 03 06 10
10 16 24
03 06 10
10 16
03 06 10
2000 5000200 500100502010521 1000
L/min
U.S.GPM
.3 .5 1 2 10 50 100 200 500 1000205
Max.
Operating
Pressure
MPa (PSI)
Graphic
Symbols
Page
Valve Type
Check Valves
In-Line
(CIT)
Right Angle
(CRT/CRG)
Flanged Connection(CP F)
Threaded Connection(CP T)
Sub-plate Mounting(CP G)
Right Angle, Flanged Connection
(CRF)
Pilot Operated
Check Valves
Check/Pilot Controlled Check Valves
498
■ In-Line Check Valves
These valves allow free flow in one direction and prevent flow in the reverse direction. Cracking pressure specified
is the pressure required to open the valve and allow free flow.
Graphic Symbol
Max. Operating Pres.
MPa (PSI)
Model Numbers
Approx. Mass
kg (lbs.)
0.1 (.22)
0.3 (.66)
0.8 (1.8)
2.3 (5.1)
Cracking Pres.
MPa (PSI)
Rated Flow
L /min (U.S.GPM)
CIT-02- -50/5080/5090
CIT-03- -50/5080/5090
CIT-06- -50/5080/5090
CIT-10- -50/5080/5090
0.04 (6)
0.35 (50)
0.5 (70)
25
(3630)
16 (4.23)
30 (7.93)
85 (22.5)
230 (60.8)
CI T -04 -50
Series
Number
Type of
Connection
Valve
Size
Design
Number
Design
Standards
-03
02
03
06
10
50
50
50
50
None:
Japanese Std. "JIS"
80:
European Design Std.
90:
N. American Design Std.
04:
0.04 (6)
35:
0.35 (50)
50:
0.5 (70)
T:
Threaded
Connection
CI:
In-Line
Check Valve
Cracking Pressure
MPa (PSI)
Model Number Designation
Specifications
Note: For In-Line Check Valves, standard type (for petroleum base oils) can be used phosphate ester type fluid.
Rated flow is the approximate flow rate, when there is a free flow pressure drop of maximum 0.3 MPa (44 PSI), the fluid has a specific
2
gravity of 0.85 and a kinematic viscosity of 20 mm /s (98 SSU), and the cracking pressure is 0.04 MPa (6 PSI).
Model Numbers
"D"
Thd.
mm (Inches)
A B
CIT-02- -50
CIT-02- -5080
CIT-02- -5090
CIT-03- -50
CIT-03- -5080
CIT-03- -5090
CIT-06- -50
CIT-06- -5080
CIT-06- -5090
CIT-10- -50
CIT-10- -5080
CIT-10- -5090
Rc 1/4
1/4 BSP.F
1/4 NPT
Rc 3/8
3/8 BSP.F
3/8 NPT
Rc 3/4
3/4 BSP.F
3/4 NPT
Rc 1-1/4
1-1/4 BSP.F
1-1/4 NPT
19 (.75)
22 (.87)
19 (.75)
27 (1.06)
41 (1.61)
60 (2.36)
58
65
58
76
83
76
95
102
95
(2.28)
(2.56)
(2.28)
(2.99)
(3.27)
(2.99)
(3.74)
(4.02)
(3.74)
133
(5.24)
FREE
A
B
"D"
Thd.
2 Places
Outlet Port
Inlet Port
CIT-02- -50/5080/5090
CIT-03- -50/5080/5090
CIT-06- -50/5080/5090
CIT-10- -50/5080/5090
DIMENSIONS IN
MILLIMETRES (INCHES)
499
DIRECTIONAL CONTROLS
In-Line Check Valves
E
In-Line Check Valves
Hydraulic Fluid: Viscosity 30 mm
2
/s (141 SSU), Specific Gravity 0.850
Pressure Drop
CIT-02
0
10
5
15 20 25
L/min
0
0.4
PSI
40
80
Pressure Drop ΔP
20
0
0.2
0.6
60
0
2
1
345
U.S.GPM
6
Flow Rate
0.7
MPa
100
CIT-02-50
CIT-02-35
CIT-02-04
0
10 20 30 40
L/min
0
24
U.S.GPM
6
Flow Rate
108
0
0.4
PSI
40
80
Pressure Drop ΔP
20
0
0.2
0.6
60
0.7
MPa
100
CIT-03-04
CIT-03-35
CIT-03-50
CIT-03
0
0.4
PSI
40
80
Pressure Drop ΔP
20
0
0.2
0.6
60
0.7
MPa
100
0
25 50 100
L/min
0
10 20
U.S.GPM
30
Flow Rate
75 125
CIT-06-50
CIT-06-35
CIT-06-04
CIT-06
0
50 100 200 300
L/min
0
20 40
U.S.GPM
60
Flow Rate
80
0
0.4
PSI
40
80
Pressure Drop ΔP
20
0
0.2
0.6
60
0.7
MPa
100
150
250
CIT-10-35
CIT-10-04
CIT-10-50
CIT-10
500
Right Angle Check Valves
CR T -04 -50
Series
Number
Type of
Connection
Valve
Size
Design
Number
Design
Standards
-03
03
06
10
03
06
10
04:
35:
50:
04:
35:
50:
None:
Japanese Std. "JIS"
& European Design Std.
90:
N. American Design Std.
T:
Threaded
Connection
Cracking Pressure
MPa (PSI)
Model NumbersType of Connection
CRT-03- -50/5080/5090
CRT-06- -50/5080/5090
CRT-10- -50/5080/5090
CRG-03- -50/5090
CRG-06- -50/5090
CRG-10- -50/5090
Max. Operating Pres.
MPa (PSI)
Approx. Mass
kg (lbs.)
Cracking Pres.
MPa (PSI)
Rated Flow
L /min (U.S.GPM)
0.9 (2.0)
1.7 (3.7)
5.6 (12.3)
1.7 (3.7)
2.9 (6.4)
5.5 (12.1)
25 (3630)
0.04 (6)
0.35 (50)
0.5 (70)
0.04 (6)
0.35 (50)
0.5 (70)
25 (3630)
40 (10.6)
125 (33)
250 (66)
40 (10.6)
125 (33)
250 (66)
Threaded Connection
Sub-plate Mounting
50
50
50
50
50
50
None:
Japanese Std. "JIS"
European Design Std.
90:
N. American Design Std.
80:
F-
Special
Seals
G:
Sub-plate
Mounting
CR:
Right Angle
Check Valve
F:
Special seals
for phosphate
ester type
fluids
(Omit if not
required)
0.04 (6)
0.35 (50)
0.5 (70)
0.04 (6)
0.35 (50)
0.5 (70)
Valve
Model
Numbers
Socket Head Cap Screw
Qty.
Japanese Standard "JIS"
European Design Standard
N.American Design Standard
CRG-03
CRG-06
CRG-10
4
4
6
M10 45 Lg.
M10 50 Lg.
M10 55 Lg.
3/8-16 UNC 1-3/4 Lg.
3/8-16 UNC 2 Lg.
3/8-16 UNC 2-1/4 Lg.
Approx. Mass
kg (lbs.)
Japanese Standard "JIS" European Design Standard N.American Design Standard
Valve
Model
Numbers
Sub-plate
Model Numbers
Sub-plate
Model Numbers
Sub-plate
Model Numbers
Thread
Size
Thread
Size
Thread
Size
CRG-03
CRG-06
CRG-10
(3.5)
(3.5)
(5.3)
(6.6)
(10.6)
(12.6)
1.6
1.6
2.4
3.0
4.8
5.7
3/8 NPT
1/2 NPT
3/4 NPT
1 NPT
1-1/4 NPT
1-1/2 NPT
3/8 BSP.F
1/2 BSP.F
3/4 BSP.F
1 BSP.F
1-1/4 BSP.F
1-1/2 BSP.F
Rc 3/8
Rc 1/2
Rc 3/4
Rc 1
Rc 1-1/4
Rc 1-1/2
CRGM-03-50
CRGM-03X-50
CRGM-06-50
CRGM-06X-50
CRGM-10-50
CRGM-10X-50
CRGM-03-5080
CRGM-03X-5080
CRGM-06-5080
CRGM-06X-5080
CRGM-10-5080
CRGM-10X-5080
CRGM-03-5090
CRGM-03X-5090
CRGM-06-5090
CRGM-06X-5090
CRGM-10-5090
CRGM-10X-5090
Model No.
Rated Flow
L /min (U.S.GPM)
Max. Operating
Pressure
MPa (PSI)
CRF-10- -50
CRF-16- -50
CRF-24- -50
300 (79.3)
600 (159)
1300 (343)
25 (3630)
Model Number Designation
Specifications
Rated flow is the approximate flow rate, when there is a free flow pressure drop of maximum 0.3 MPa (44 PSI), the fluid has a specific
2
gravity of 0.85 and a kinematic viscosity of 20 mm /s (98 SSU), and the cracking pressure is 0.04 MPa (6 PSI).
Sub-plate
Mounting Bolts
Socket head cap screws in the table below are included.
Yuken can offer flanged connection
valves described below.
For details, contact us.
Sub-plates are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface
should have a good machined finish.
■ Right Angle Check Valves
These valves allow free flow in one direction and prevent flow in the reverse direction. Cracking pressure specified
is the pressure required to open the valve and allow free flow.
Graphic Symbol
501
DIRECTIONAL CONTROLS
Right Angle Check Valves
E
Right Angle Check Valves
Mounting surface: ISO 5781-AJ-10-2-A
CRT-03- -50
CRT-03- -5080
CRT-03- -5090
CRT-06- -50
CRT-06- -5080
CRT-06- -5090
CRT-10- -50
CRT-10- -5080
CRT-10- -5090
Rc 3/8
3/8 BSP.F
3/8 NPT
Rc 3/4
3/4 BSP.F
3/4 NPT
Rc 1-1/4
1-1/4 BSP.F
1-1/4 NPT
Model Numbers
"H"
Thd.
Dimensions mm (Inches)
FAB DE
62
(2.44)
36
(1.42)
38
(1.50)
Dia
80.5
(3.17)
33
(1.30)
44
(1.73)
45
(1.77)
54
(2.13)
Dia.
104.5
(4.11)
49
(1.93)
54
(2.13)
65
(2.56)
80
(3.15)
SQ.
130
(5.12)
65
(2.56)
80
(3.15)
74
(2.91)
107
(4.21)
ecafruS gnitnuoMsrebmuN ledoM
Dimensions mm (Inches)
FABCDE H J
ISO 5781-AG-06-2-A
ISO 5781-AH-08-2-A
CRG-03
CRG-06
90
(3.54)
102
(4.02)
79.4
(3.13)
66.7
(2.63)
11.3
(.44)
11.7
(.46)
93
(3.66)
72
(2.83)
60.3
(2.37)
42.9
(1.69)
21.4
(.84)
17.5
(.69)
84.5
(3.33)
72.5
(2.85)
35
(1.38)
30
(1.18)
E
FREE
FREE
A
F
B
C
C
D
"H"
Thd.
2 Places
Outlet Port
Inlet Port
D
E
F
B
A
J
H
6
C
Outlet Port
Inlet Port
Mounting Surface
(O-Rings Furnished)
Locating Pin
6(.24) Dia.
(.24)
Outlet Port
Inlet Port
11(.43) Dia. Through
17.5(.69) Dia. Spotface
6 Places
Mounting Surface
(O-Rings Furnished)
Locating Pin
6(.24) Dia.
96.8
(3.81)
120
(4.72)
11.6
(.46)
42.1
(1.66)
84.1
(3.31)
123
(4.84)
20.3 (.80)
97
(3.82)
6
(.24)
40
(1.57)
11(.43)
Dia. Through
17.5(.69) Dia. Spotface
4 Places
CRT-03- -50/5080/5090
CRT-06- -50/5080/5090
CRT-10- -50/5080/5090
DIMENSIONS IN
MILLIMETRES (INCHES)
CRG-03- -50/5090
CRG-06- -50/5090
CRG-10- -50/5090
C
502
Right Angle Check Valves
CRGM-03-50
CRGM-03-5080
CRGM-03-5090
CRGM-03X-50
CRGM-03X-5080
CRGM-03X-5090
Sub-plate
Model Numbers
Thread Size
"A"
Thd.
"B"
Thd.
Rc 3/8
3/8 BSP.F
3/8 NPT
Rc 1/2
1/2 BSP.F
1/2 NPT
M10
3/8-16 UNC
3/8-16 UNC
M10
82.3 (3.24)
80 (3.15)
82.3 (3.24)
22 (.87)
24 (.94)
22 (.87)
"H"
Thd.
"J"
Thd.
Rc 3/4
3/4 BSP.F
3/4 NPT
Rc 1
1 BSP.F
1 NPT
M10
3/8-16 UNC
3/8-16 UNC
M10
FEDCBA
Thread SizeDimensions mm (Inches)
Sub-plate
Model Numbers
CRGM-06-50
CRGM-06-5080
CRGM-06-5090
CRGM-06X-50
CRGM-06X-5080
CRGM-06X-5090
124
(4.88)
10
(.39)
77
(3.03)
27
(1.06)
36
(1.42)
110
(4.33)
136
(5.35)
16
(.63)
45
(1.77)
130
(5.12)
"H"
Thd.
"J"
Thd.
Rc 1-1/4
1-1/4 BSP.F
1-1/4 NPT
Rc 1-1/2
1-1/2 BSP.F
1-1/2 NPT
M10
3/8-16 UNC
3/8-16 UNC
M10
FEDCBA
Thread SizeDimensions mm (Inches)
Sub-plate
Model Numbers
CRGM-10-50
CRGM-10-5080
CRGM-10-5090
CRGM-10X-50
CRGM-10X-5080
CRGM-10X-5090
150
(5.91)
177
(6.97)
12
(.47)
25.5
(1.00)
96
(3.78)
104
(4.09)
30
(1.18)
22
(.87)
45
(1.77)
50
(1.97)
135
(5.31)
167
(6.57)
90(3.54)
70(2.76)
33.3
(1.31)
66.7(2.63)
7.1
(.28)
(1.25)
31.8
(1.41)
35.7
42.9
(1.69)
19.5
(.77)
21
(.83)
61
(2.40)
82
(3.23)
102
(4.02)
10
(.39)
90
(3.54)
15
(.59)
32(1.26)
13(.51)
Dia.
2 Places
"B"
Thd.
20(.79) Deep
4 Places
8.8(.35) Dia. Through
14(.55) Dia. Spotface
4 Places
10(.39)
1.7(.07)
"A"
Thd.
2 Places
7(.28) Dia.
10(.39) Deep
102(4.02)
79.4(3.13)
11.3
(.44)
39.7
(1.56)
8.8(.35)
Dia. Through
14(.55) Dia. Spotface
4 Places
22(.87) Dia.
2 Places
"J"
Thd.
20(.79) Deep
4 Places
11.1
(.44)
(1.75)
44.5
(1.94)
49.2
(2.37)
60.3
22
(.87)
D
C
104(4.09)
A
B
F
15
(.59)
E
7(.28) Dia.
10(.39) Deep
"H"
Thd.
2 Places
F
19
(.75)
E
28(1.10) Dia.
2 Places
A
(.66)
16.7
(1.66)
42.1
(2.47)
62.7
(2.66)
67.5
(3.31)
84.1
11.6
(.46)
120
(4.72)
48.4
(1.91)
96.8
(3.81)
140(5.51)
116(4.57)
7(.28)
Dia.
10(.39) Deep
"H"
Thd.
2 Places
11(.43) Dia. Through
17.5(.69) Dia. Spotface
4 Places
12(.47)
9.6(.38)
"J"
Thd.
20(.79) Deep
6 Places
B
D
C
(.83)
21
126(4.96)
DIMENSIONS IN
MILLIMETRES (INCHES)
CRGM-03-50/5080/5090
CRGM-03X-50/5080/5090
CRGM-06-50/5080/5090
CRGM-06X-50/5080/5090
CRGM-10-50/5080/5090
CRGM-10X-50/5080/5090
■ Sub-plate
503
DIRECTIONAL CONTROLS
Right Angle Check Valves
E
Right Angle Check Valves
Name of Parts .ytQmetI
CRT-03 CRT-06 CRT-10
Part Numbers
7
O-Ring
Seal Kit
SO-NB-P21
KS-CRT-03-50
SO-NB-P24
KS-CRT-06-50
SO-NB-P32
KS-CRT-10-50
1
Name of Parts .ytQmetI
CRG-03 CRG-06 CRG-10
Part Numbers
7
8
O-Ring
O-Ring
Seal Kit
SO-NB-P21
SO-NB-P18
KS-CRG-03-50
SO-NB-P24
SO-NB-P28
KS-CRG-06-50
SO-NB-P32
SO-NB-P32
KS-CRG-10-50
1
2
10
8
2
1
3
4
6
9
7
5
1
2
3
6
8
4
7
5
0
10 20
L/min
0
5
U.S.GPM
Flow Rate
30 40 50 60
15
10
0
0.4
PSI
40
80
Pressure Drop ΔP
0
0.2
0.6
0.8
140
1.0
120
MPa
0
25 50
L/min
0
10
U.S.GPM
Flow Rate
75 125 150 175
50
40
100 200
20 30
0
0.4
PSI
50
100
Pressure Drop ΔP
0
0.2
0.6
0.8
200
1.0
150
MPa
1.2
1.4
0
nim/L
05
0
20
U.S.GPM
Flow Rate
150
100
80
100 200
40 60
0
0.4
PSI
50
100
Pressure Drop ΔP
0
0.2
0.6
0.8
200
1.0
150
MPa
1.2
1.4
250 300 350
400
0
10 20
L/min
0
5
U.S.GPM
Flow Rate
30 40 50 60
15
10
0
0.4
PSI
40
80
Pressure Drop ΔP
0
0.2
0.6
0.8
140
1.0
120
MPa
0
25 50
L/min
0
10
U.S.GPM
Flow Rate
75 125 150 175
50
40
100
200
20 30
0
0.4
PSI
50
100
Pressure Drop ΔP
0
0.2
0.6
0.8
200
1.0
150
MPa
1.2
1.4
0
50
L/min
0
20
U.S.GPM
Flow Rate
150
100
80
100 200
40 60
0
0.4
PSI
50
100
Pressure Drop ΔP
0
0.2
0.6
0.8
175
1.0
150
MPa
1.2
250 300 350
400
CRG-03-50
CRG-03-35
CRG-03-04
CRG-06-50
CRG-06-35
CRG-06-04
CRG-10-50
CRG-10-35
CRG-10-04
CRT-10-50
CRT-10-35
CRT-10-04
CRT-06-50
CRT-06-35
CRT-06-04
CRT-03-50
CRT-03-35
CRT-03-04
Hydraulic Fluid: Viscosity 30mm
2
/s (141 SSU), Specific Gravity 0.850
CRT-03
CRT-06
CRT-10
CRG-03
CRG-06
CRG-10
List of Seals
CRT-03-50/5080/5090
CRT-06-50/5080/5090
CRT-10-50/5080/5090
CRG-03-50/5090
CRG-06-50/5090
CRG-10-50/5090
When ordering the O-Rings, please specify the seal kit number from the table
above.
When ordering the O-Rings, please specify the seal kit number from the table
above.
List of Seals & Seal Kits
List of Seals & Seal Kits
Pressure Drop
504
Pilot Operated Check Valves
Specifications
Model Numbers
Rated Flow
L /min (U.S.GPM)
CP F-10- - -50
CP F-16- - -50
Max. Operating
Pressure
MPa (PSI)
250
600
(66)
(159)
25
25
(3630)
(3630)
Valve
Model
Numbers
Socket Head Cap Screw
Qty.
Japanese Standard "JIS" &
European Design Standard
N.American
Design Standard
CP G-03
CP G-06
CP G-10
4
4
6
M10 45 Lg.
M10 50 Lg.
M10 55 Lg.
3/8-16 UNC 1-3/4 Lg.
3/8-16 UNC 2 Lg.
3/8-16 UNC 2-1/4 Lg.
CP T -04 -50
Series
Number
Type of
Connection
Valve
Size
Design
Number
Design
Standards
03
Cracking Pres.
MPa (PSI)
F-
Special
Seals
-E
Drain
Connection
03
06
10
03
06
10
50
50
50
50
50
50
None:
Japanese Std. "JIS"
European Design Std.
90:
N. American Design Std.
80:
None:
Japanese Std. "JIS" &
European Design Std.
90:
N. American Design Std.
T:
Threaded
Connection
G:
Sub-plate
Mounting
F:
Special Seals
for Phosphate
Ester Type
Fluids
(Omit if not
required)
CP:
Pilot Operated
Check Valve
CPD:
Decompression
Type Pilot
Operated
Check Valve
04:
20:
35:
50:
0.04 (6)
0.2 (29)
0.35 (50)
0.5 (70)
None:
Internal
Drain
E:
External
Drain
Threaded Connection
Model NumbersType of Connection
CPT/CPDT-03-
- -50
CPT/CPDT-06-
- -50
CPT/CPDT-10- - -50
CPG/CPDG-03- - -50
CPG/CPDG-06- - -50
CPG/CPDG-10- - -50
Max. Operating Pres.
MPa (PSI)
Approx. Mass
kg (lbs.)
Cracking Pres.
MPa (PSI)
Rated Flow
L /min (U.S.GPM)
25 (3630)
25 (3630)
40
125
250
40
125
250
Sub-plate Mounting
0.04
0.2
0.35
0.5
(6)
(29)
(50)
(70)
0.04
0.2
0.35
0.5
(6)
(29)
(50)
(70)
(10.6)
(33)
(66)
(10.6)
(33)
(66)
3.0
5.5
9.6
3.3
5.4
8.5
(6.6)
(12.1)
(21.2)
(7.3)
(11.9)
(18.7)
Yuken can offer flanged connection valves
described below.
For details, contact us.
Mounting Bolts
Socket head cap screws in the table below are included.
Model Number Designatioin
Graphic Symbols
Internal Drain Type External Drain Type
Rated flow is the approximate flow rate, when there is a free flow pressure drop of maximum 0.3 MPa (44 PSI), the fluid has a specific
2
gravity of 0.85 and a kinematic viscosity of 20 mm /s (98 SSU), and the cracking pressure is 0.04 MPa (6 PSI).
These check valves allow flow in one direction and prevent flow in the reverse direction, until operated by pilot pressure
to allow free reverse flow. The specified cracking pressure is required to open the valve to allow free flow direction.
■ Pilot Operated Check Valves
505
DIRECTIONAL CONTROLS
Pilot Operated Check Valves
E
Pilot Operated Check Valves
(Fig.a) (Fig.b)
P
1
P
2
P
2
P
1
DR
Valve
Model
Numbers
Japanese Standard "JIS"
Sub-plate
Model Numbers
Thread
Size
Sub-plate
Model Numbers
Thread
Size
Sub-plate
Model Numbers
Approx.
Mass
kg (lbs.)
Thread
Size
European Design Standard N. American Design Standard
CP G-03
CP G-06
CP G-10
1.6 (3.5)
1.6 (3.5)
2.4 (5.3)
3.0 (6.6)
4.8 (10.6)
5.7 (12.6)
Rc 3/8
Rc1/2
Rc 3/4
Rc 1
Rc 1-1/4
Rc 1-1/2
3/8 BSP.F
1/2 BSP.F
3/4 BSP.F
1 BSP.F
1-1/4 BSP.F
1-1/2 BSP.F
3/8 NPT
1/2 NPT
3/4 NPT
1 NPT
1-1/4 NPT
1-1/2 NPT
HGM-03-20
HGM-03X-20
HGM-06-20
HGM-06X-20
HGM-10-20
HGM-10X-20
HGM-03-2080
HGM-03X-2080
HGM-06-2080
HGM-06X-2080
HGM-10-2080
HGM-10X-2080
HGM-03-2090
HGM-03X-2090
HGM-06-2090
HGM-06X-2090
HGM-10-2090
HGM-10X-2090
Sub-plate
Instructions
Operation of internal and external drain types
When the outlet side P1 is directly connected to the tank in reversed
free flow (Fig. a), the internal drain type is normally used. When
the back pressure is applied to the outlet side P
1 (Fig. b), be sure
to use the external drain type.
Minimum pilot pressure characteristics
That depends on the pressure of the inlet side P
2 in the reversed
free flow.
This value can be determined from the characteristics chart.
Cautions on replacement of 20 design low cracking pressure
.sevlav ngised 05 htiw sevlav epyt
In 20 design valve with cracking pressure of 0.035 MPa (5 PSI)
(Code "5"), for closing the valve completely and certainly, it was
necessar y to introduc e the pressurize d oil into the drain port to
push down the piston compulsory.
While in 50 design valve with cracking pressure of 0.04 MPa (6
PSI) (Code "6"), it has such structure that the valve can be closed
completely and certainly without introducing the pressurized oil
into the drain port. On the contrary, what is worse is that if the
pressurized oil is introduced into the drain port, the oil acts towards
the direction o f opening the valve, which i s very dangerous and
has to be absolutely avoided. Therefore, please do not supply any
pressurized oil into the drain port in case of using 50 design valve.
The machinery, if misused due to failure to observe
the "Cautions" on the left, may perform
unforeseeable movements, resulting in a disastrous
accident.
WARNING
Sub-plates are available, specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface should
have a good machined finish.
Sub-plates are shared with those for H Type Pressure Control Valves. Refer to pages 244 to 246 for dimensions.
506
Pilot Operated Check Valves
Model Numbers
B
Dimensions mm (Inches)
C
CPT/CPDT-03- - -50
CPT/CPDT-03- - -5080
CPT/CPDT-03- - -5090
CPT/CPDT-06- - -50
CPT/CPDT-06- - -5080
CPT/CPDT-06- - -5090
CPT/CPDT-10- - -50
CPT/CPDT-10- - -5080
CPT/CPDT-10- - -5090
DEFH KLA
"N"
Thd.
"P"
Thd.
Thread Size
Rc 3/8
3/8 BSP.F
3/8 NPT
Rc 3/4
3/4 BSP.F
3/4 NPT
Rc 1-1/4
1-1/4 BSP.F
1-1/4 NPT
Rc 1/4
1/4 BSP.F
1/4 NPT
Rc 1/4
1/4 BSP.F
1/4 NPT
Rc 1/4
1/4 BSP.F
1/4NPT
80
(3.15)
40
(1.57)
39
(1.54)
150.5
(5.93)
84.5
(3.33)
38
(1.50)
Dia.
60
(2.36)
29
(1.14)
67.5
(2.66)
26.5
(1.04)
96
(3.78)
48
(1.89)
47
(1.85)
171.5
(6.75)
92.5
(3.64)
62
(2.44)
SQ.
72
(2.83)
35
(1.38)
75.5
(2.97)
31
(1.22)
140
(5.51)
70
(2.76)
64
(2.52)
203.5
(8.01)
113
(4.45)
80
(3.15)
SQ.
82
(3.23)
40
(1.57)
96
(3.78)
43
(1.69)
FREE
C
B
A
D
E
F
H
J
L
K
Free Flow Inlet or Reversed
Controlled Flow Outlet Port
"N"
Thd.
Free Flow Outlet or
Reversed Controlled
Flow Inlet Port
"N"
Thd.
Drain Port
"P"
Thd.
Pilot Port
"P"
Thd.
CPT/CPDT-03- - -50/5080/5090
CPT/CPDT-06- - -50/5080/5090
CPT/CPDT-10- - -50/5080/5090
J
507
DIRECTIONAL CONTROLS
Pilot Operated Check Valves
E
Pilot Operated Check Valves
Mounting surface: ISO 5781-AJ-10-2-A
Model Numbers
B
Dimensions mm (Inches)
CDEFH JA
Mounting Surface
CPG/CPDG-03- - -50/5090
CPG/CPDG-06- - -50/5090
ISO 5781-AG-06-2-A
ISO 5781-AH-08-2-A
90
(3.54)
66.7
(2.63)
11.7
(.46)
150.5
(5.93)
42.9
(1.69)
66
(2.60)
62
(2.44)
30
(1.18)
102
(4.02)
79.4
(3.13)
11.3
(.44)
171.5
(6.75)
60.3
(2.37)
67.5
(2.66)
74
(2.91)
35
(1.38)
FREE
FREE
A
B
C
E
F
D
Drain Port
Pilot Port
11(.43) Dia. Through
17.5(.69) Dia. Spotface
4 Places
Free Flow Inlet or
Reversed Controlled
Flow Outlet Port
H
J
Free Flow Outlet or Reversed
Controlled Flow Inlet Port
Locating Pin
6(.24) Dia.
Mounting Surface
(O-Rings Furnished)
Locating Pin
6(.24) Dia.
Mounting Surface
(O-Rings Furnished)
Drain Port
Pilot Port
11(.43) Dia. Through
17.5(.69) Dia. Spotface
6 Places
Free Flow Inlet or
Reversed Controlled
Flow Outlet Port
Free Flow Outlet or Reversed
Controlled Flow Inlet Port
119
(4.69)
96.8
(3.81)
11.1
(.44)
42.1
(1.66)
84.1
(3.31)
203.5
(8.01)
70
(2.76)
89
(3.50)
40
(1.57)
6
(.24)
6
(.24)
CPG/CPDG-03- - -50/5090
CPG/CPDG-06- - -50/5090
DIMENSIONS IN
MILLIMETRES (INCHES)
CPG/CPDG-10- - -50/5090
508
Pilot Operated Check Valves
Hydraulic Fluid: Viscosity 30 mm
2
/s (141 SSU), Specific Gravity 0.850
Pressure Drop
CPT-03, CPDT-03 CPG-03, CPDG-03
0
20
10
30 40 50
L/min
0
0.8
PSI
100
175
MPa
Pressure Drop ΔP
50
0
0.4
1.2
150
0
510
U.S.GPM
15
Flow Rate
60
0
20
10
30 40 50
L/min
0
0.8
PSI
100
MPa
Pressure Drop ΔP
20
0
0.4
1.0
0
510
U.S.GPM
15
Flow Rate
60
40
60
80
120
140
CP T-03- -50
CP T-03- -35
CP T- 0 3 - - 2 0
CP T- 0 3 - - 0 4
CP G-03- -50
CP G-03- -35
CP G-03- -20
CP G-03- -04
Reversed
Controlled Flow
Reversed
Controlled Flow
CPT-06, CPDT-06 CPG-06, CPDG-06
CPT-10, CPDT-10
CPG-10, CPDG-10
0
50
25
75 150 175
L/min
0
0.8
PSI
100
200
MPa
Pressure Drop ΔP
50
0
0.4
1.2
150
0
10 40
U.S.GPM
50
Flow Rate
200100 125
20 30
1.6
225
0
50
25
75
150
175
L/min
0
0.8
PSI
100
200
MPa
Pressure Drop ΔP
50
0
0.4
1.2
150
0
10 40
U.S.GPM
50
Flow Rate
200100 125
20 30
1.
4
CP T- 0 6 - - 5 0
CP T- 0 6 - - 3 5
CP T- 0 6 - - 2 0
CP T- 0 6 - - 0 4
CP G-06- -50
CP G-06- -35
CP G-06- -20
CP G-06- -04
Reversed
Controlled Flow
Reversed
Controlled Flow
0
50 150
L/min
0
0.9
PSI
100
200
MPa
Pressure Drop ΔP
50
0
0.3
1.5
150
0
20 80
U.S.GPM
100
Flow Rate
200100
40 60
1.8
250
250 300 350 400
0.6
1.2
0
50 150
L/min
0
1.2
PSI
100
200
MPa
Pressure Drop ΔP
50
0
0.4
1.6
150
0
20 80
U.S.GPM
100
Flow Rate
200100
40 60
2.0
250
250 300 350 400
0.8
300
CP T- 1 0 - - 5 0
CP T-10- -35
CP T-10- -20
CP T-10- -04
CP G-10- -50
CP G-10- -35
CP G-10- -20
CP G-10--04
Reversed
Controlled Flow
Reversed
Controlled Flow
Min. Pilot Pressure Chart
P2 P2
P1
PP
P
1
PP
P
2
P1
PP
0
MPa
52025
0
4
200
600
Minimum Pilot Pressure (PP)
0
6
8
800
10
2
500
PSI
Supply Pressure (P2)
1500
1000
0
PSI MPa
12
1000
1200
1400
1600
1700
400
2000 2500 3000 3500
1510
Cracking Pressure
0.5 MPa (70 PSI)
0.04 MPa (6 PSI)
0.5 MPa (70 PSI)
Cracking Pressure
0.04 MPa (6 PSI)
A
A : Min. Pilot Pressure to open the Decompression Valve
Pressure Drop for Reversed Controlled Flow Only when Decompression Valve is Opened
CPDT-03, CPDG-03
CPDT-06, CPDG-06
CPDT-10, CPDG-10
0
10 20
L/min
30 40 50 60
0
2
Flow Rate
12
8
46
10
14 16 U.S.GPM
0
510
L/min
15 20 25
0
1
Flow Rate
5
4
2 3 6 U.S.GPM
0
10
PSI
1000
2000
Pressure Drop ΔP
0
5
15
20
3500
25
3000
MPa
0
10
PSI
1000
2000
Pressure Drop ΔP
0
5
15
20
3500
25
3000
MP
a
0
10
PSI
1000
2000
Pressure Drop ΔP
0
5
15
20
3500
25
3000
MPa
0
50 100
L/min
150 200
0
10
Flow Rate
50
40
20 30 U.S.GPM
509
DIRECTIONAL CONTROLS
Pilot Operated Check Valves
E
Pilot Operated Check Valves
■ List of Seals
5
1
2
1
4
3
2
7
6
8
9
1
3
1
0
1
6
1
7
1
1
1
5
2
0
1
9
2
1
1
8
2
2
2
3
2
4
2
1
1
4
1
9
1
11816
1
0
5
4
1
3
2
0
1
2
2
7
1
3
6
8
1
5
9
Name of PartsItem Qty.
CPT/CPDT-03
Part Numbers
11
12
13
O-Ring
O-Ring
O-Ring
1
1
1
CPT/CPDT-06 CPT/CPDT-10
SO-NB-P7
SO-NB-P21
SO-NB-G25
SO-NB-P9
SO-NB-P36
SO-NB-P42
SO-NB-P9
SO-NB-P29
SO-NB-P32
Name of PartsItem Qty.
CPG/CPDG-03
Part Numbers
11
12
13
14
15
O-Ring
O-Ring
O-Ring
O-Ring
O-Ring
1
2
2
1
1
CPG/CPDG-06 CPG/CPDG-10
SO-NB-P7
SO-NB-P9
SO-NB-P18
SO-NB-P21
SO-NB-G25
SO-NB-P9
SO-NB-P9
SO-NB-P32
SO-NB-P36
SO-NB-P42
SO-NB-P9
SO-NB-P9
SO-NB-P28
SO-NB-P29
SO-NB-P32
Model Numbers Seal Kit Numbers
KS-CPT-03-50
KS-CPT-06-50
KS-CPT-10-50
KS-CPG-03-50
KS-CPG-06-50
KS-CPG-10-50
CPT/CPDT-03-
- -50/5080/5090
CPT/CPDT-06- - -50/5080/5090
CPT/CPDT-10-
- -50/5080/5090
CPG/CPDG-03- - -50/5090
CPG/CPDG-06- - -50/5090
CPG/CPDG-10- - -50/5090
CPT/CPDT-03- - -50/5080/5090
CPT/CPDT-06-
- -50/5080/5090
CPT/CPDT-10-
- -50/5080/5090
CPG/CPDG-03- - -50/5090
CPG/CPDG-06- - -50/5090
CPG/CPDG-10- - -50/5090
List of Seals
Note: When ordering the seals, please specify the seal kit number from the table below.
Note: When ordering the O-Rings, please specify the seal kit number from the table below.
List of Seals
List of Seal Kits
CPDG-03/06/10
CPDT-03/06/10
