The Covers CVC*S are designed to hold Polyhydron make 2 port slip-in cartridge
valves model CV*** in the cavities machined as per ISO 7368 . It also meant to
connect port C of the Cartridge to one of the two pressure sources, brought to its port
X and port Z1 . Automatic selection of higher source pressure and isolation of these
pressures from one another is done by the built in Shuttle valve in the cover.
Application of pressures at port C isolates port A of the cartridge from its port B.
To open the passage in the cartridge, it is essential to depresssuize both the input
sources provide to the cover.
The resultant pressure source acting on the port C is also available at port Z2
provided on the cover.
A Polyhydron Group Company
Description
Hydraulic symbol
COVER WITH BUILT IN
SHUTTLE VALVE
Model : CVC*S
Ref. No. D 03424
Release 12 / 2016
ENGINEERING - 1 of 2
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
Mounting interface : As per ISO 7368
Working pressure : 350 bar.
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.
Technical specifications
Section
Z1
X
C
X
X
Z2
Z1
Z2
B
A
X
A
B
C Z2
Z1
A Polyhydron Group Company
D 03424-CVC*S
ENGINEERING - 2 of 2
Dimensions in mm.
All rights reserved.
Subject to revision
Note:
Cover fixing S.H.C Screws are OUT OF
SCOPE OF SUPPLY.
Cartridge Valve Cover
CVC
16 S
10
Ordering code
Size 16, 25, 32 and 40
Installation dimensions remain
Design code subjected to Change.
same for design code 10 thru 19.
Size
L2 L3
65
85
102
125
5.5
6.0
0.0
0.0
L4 L5
2.5
6.0
8.0
0.0
H1
H2
H3 H4
40
40
50
60
25
25
30
30
12
18
24
30
25
25
30
30
Mass
Kg.
apprx
*M. 4 nos. Cover fixing
S.H.C. Screw
(Class 12.9)
M8 x 40 Long
M12 x 45 Long
M16 x 55 Long
M20 x 70 Long
Tightening
Torque.
39 Nm
135 Nm
330 Nm
650 Nm
H5ØD1
4
25
25
25
30
6
L8
6
6
1.5
2.5
4.3
7.5
L6
16
25
32
40
L9
3
3
4
4
4
6
10
8
ØD4
M8
M12
M20
M16
t1
14
20
33
26
ØD3
max
t2
10
10
10
10
L1
4
2
32.5
42.5
4
0
51
62.5
25
33
41
50
X
C
Y
L8 L8
L7 L7
L8
L7 L7
ØD2 drill
t2 deep.
Z1
ØD3
@ X, Y, Z1& Z2.
ØD4 tap
t1 deep.
Cover mounting interface as per ISO 7368.
Z2
23
29
35
42.5
L8
L10
L9
L10
10.5
16
17
23
With shuttle valve
Unit dimensions
Z1
Z2
C
X
H1
5
H3
H2
X
C
Z1
Z2
H4
H5
L1
L1
L5
L2
L4
L4
*M, Cover fixing S.H.C Screw.
L3
10 A/F
6 A/F
6 A/F
ØD1
ØD1
ØD2
1
1
1.2
1.2
L6
L7
23
29
35
42.5
