Check valve models C allow free flow in the direction from Port A to
Port B and offer leak free closure in opposite direction.
Two standard mounting styles are avaliable:
- Line mounting C T.
- Subplate mounting C S.
A Polyhydron Group Company
Description
Hydraulic symbol
CHECK VALVE
Ref. No. D 04903
Release: 01 / 2018
ENGINEERING - 1 of 4
78-80, Machhe Industrial Estate,
Machhe, Belgaum - 590 014. INDIA.
Phone : +91-(0)831- 2411001
Fax : +91-(0)831- 2411002
E-mail : polyhydron@gmail.com
Website : www.polyhydron.com
Construction : Seat type valve.
Mounting style : Threaded port or subplate mounting.
Mounting interface : Factory standard.
Mounting position : Optional.
Flow direction : Free flow from A to B, Leakfree closure in opposite direction.
Cracking pressure : 0, 0.5, 1.5, 3 and 5 bar.
Working pressure : 315 bar for Ports A and B .
Hydraulic medium : Mineral oil.
Temperature range : -20°C to + 80°C.
Viscosity range : 10 cSt to 380 cSt.
Fluid cleanliness required : ISO 4406 20/18/15 or better.
Max. flow handling capacity : Refer graphs.
Mass approx.
(Subplate mounting) : Model : 06 08 10 15 20 25 30
in Kg : 0.1 0.15 0.3 0.45 0.9 2 2.4
(Line mounting) : Model : 06 10 20 30
in Kg : 0.3 1 2.4 7.2
Technical specifications
Section
BA
***
***
Model : C
*
*
A B
A B
Subplate body Threaded body
A Polyhydron Group Company
D 04903-C
ENGINEERING - 2 of 4
Dimensions in mm.
All rights reserved.
Subject to revision
Unit dimensions
***
Threaded port body
Size
G1/4
58
12
G3/4
85
16
G3/8
58
12
06
L1
T1
G1
98
18
A B
A/F
T1
T1
L1
BSP port BSP port
A/F
10 15 20 25 30
BSP
Port
19 3624 46
G1 1/4
120
20
60
G 1 1/2
132
22
65
08
G1/2
72
14
30
Subplate mounting body
B2
L2
H1
H2
A B
B1
L1
ØD1
B
A
B3
B4
L3
B1
L4
L5
L6
ØD3 max
ØD4 tap,
T2 deep
ØD2 Drill,
T1 deep
L7
B2
L2
9
16.5
15
27
18
33
45
68
37
55
7.5
9.5
3
3
4
4
6
11
27.5
45
55
95 70 10 6
7
22
ØD1
Size
L2 L3
51
74
102
L4 L5
7
9
10
L7L6
06
10
20
B1
22
36
50
L1
3
6
10
B2 B3
3.5
3.5
5.5
26
38
55
T1
5
5
8
Valve fixing
S.H.C Screws
Class 12.9
M6 x 35L
4 nos
M8 x 50L
4 nos
M10 x 70L
4 nos
B4 H1 H2
Tightening
Torque
Nm
11
18
25
T2
12
14
19
42.5
65
85
132 100 12.5 6
7
31
139 15
30
75
20 5.582
8
M12 x 100L
4 nos
37.5
22
A B
A B
ØD2
ØD3
max
16
39
77
135
Subplate body mounting
interface
M6
ØD4
M8
M10
M12
A Polyhydron Group Company
All rights reserved.
Subject to revision
D 04903-C
ENGINEERING - 3 of 4
***
Ordering code
installation dimensions remain
Design code subjected to Change .
same for design code 09 thru 19.
Subplate mounting body
Check valve
Port size
Threaded
body
Subplate
mounting
Size
G1/4 Ø 06 max
G3/8
G1/2
---
Ø 11 max
S
T
Threaded port body
C
06 T 1 03
06
08
10
Performance graph
15
20
25
30
G3/4 ---
G1 Ø 22 max
G1 1/4 ---
G1 1/2 Ø 31 max
Cracking pressure (bar)
0 1 2 3 4
0.0 0.5 1.5 3.0 5.0
5 bar
3 bar
1.5 bar
0.5 bar
Without spring
Without spring
0.5 bar
1.5 bar
Without spring
0.5 bar
1.5 bar
3 bar
5 bar
Without spring
0.5 bar
1.5 bar
3 bar
5 bar
Without spring
0.5 bar
1.5 bar
3 bar
5 bar
Check valve C06T
Check valve C08T
Pressure drop ΔP (bar)
Pressure drop ΔP (bar)
Flow Q (l/min)
Flow from Port A to Port B
Flow Q (l/min)
Flow from Port A to Port B
Flow Q (l/min) Flow from Port A to Port B
Check valve C06S
Pressure drop ΔP (bar)
Pressure drop ΔP (bar)
Check valve C10S
Check valve C10T
Flow Q (l/min)
Flow from Port A to Port B
Flow Q (l/min)
Flow from Port A to Port B
3 bar
5 bar
Pressure drop ΔP (bar)
A Polyhydron Group Company
All rights reserved.
Subject to revision
All rights reserved.
Subject to change without prior notice.
Due to continuous improvement in the design of the product, the actual product supplied may look different than shown above.
For critical applications, please ask for certified installation drawing.
D 04903-C
ENGINEERING - 4 of 4
***
Without spring
0.5 bar
1.5 bar
3 bar
5 bar
Without spring
0.5 bar
1.5 bar
3 bar
5 bar
Without spring
0.5 bar
1.5 bar
3 bar
Without spring
0.5 bar
1.5 bar
3 bar
5 bar
5 bar
Without spring
0.5 bar
3 bar
5 bar
Without spring
0.5 bar
3 bar
5 bar
Flow Q (l/min) Flow from Port A to Port B
Pressure drop ΔP (bar)
Check valve C15T
Check valve C20S Check valve C20T
Flow Q (l/min) Flow from Port A to Port B
Flow Q (l/min) Flow from Port A to Port B
Pressure drop ΔP (bar)
Pressure drop ΔP (bar)
Flow Q (l/min) Flow from Port A to Port B
Pressure drop ΔP (bar)
Check valve C25T
Flow Q (l/min)
Flow from Port A to Port B Flow Q (l/min)
Flow from Port A to Port B
Check valve C30S Check valve C30T
1.5 bar
1.5 bar
Pressure drop ΔP (bar)
Pressure drop ΔP (bar)
