The Covers CVC*SDE are designed to hold Polyhydron make 2 port slip-in cartridge
valves model CV*** in the cavities machined as per ISO 7368, with built in facility to control
the operation of the cartridge valve as under,
Refering to the circuits shown below , the built-in Shuttle valve in the cover selects higher
of the pilot pressures brought to the cover at its ports X and Z1 and admits it to the port P
of the Directional Control Valve mounted on the cover.
In case of use of cover model CVC*SDEA, in de-energised condition of the Sol. Directional
control valve mounted on the cover, the port A, which is normally connected to port P
through the valve , gets directly connected to the control port C on the cartridge interface,
thereby keeping the cartridge valve normally closed . Upon energizing the Solenoid, the
control port C gets connected to tank via the Directional Control Valve and therefore the
cartridge passage opens. In this configuration of the cover, port B of the Solenoid operated
Directional Control Valve is available at port Z2 on the cover for actuation of other
cartridge/s.
In case of use of cover model CVC*SDEB, in de-energised condition of the Sol. Directional
control valve mounted on the cover , the port B , which is normally connected to port T
through the valve, gets directly connected to the control port C on the cartridge interface,
thereby keeping the cartridge valve normally opened. Upon energizing the Solenoid, the
control port C gets connected to pressure via the Directional Control Valve and therefore
the cartridge passage closes. In this configuration of the cover , port A of the Solenoid
operated Directional Control Valve is available at port Z2 on the cover for actuation of
other cartridge/s.
A Polyhydron Group Company
Description
Hydraulic symbol
COVER WITH BUILT IN SHUTTLE VALVE
FOR FITTING DIRECTION CONTROL VALVE
Model : CVC*SDE
Ref. No. D 03477
Release 11 / 2014
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
B
A
Z2
C
Y
P
Z1
X
CVC*SDEA
Z2C Y
Z1X
T
CVC*SDEB
B
A
P
T
B
A
B
A
Z1
P T
Y
C
X Z2
A
B
A/B A/B
A Polyhydron Group Company
D 03477-CVC*SDE
ENGINEERING - 2 of 2
Dimensions in mm.
All rights reserved.
Subject to revision
Notes:
1. Cover fixing S.H.C Screws are OUT OF
SCOPE OF SUPPLY.
2. Mounting interface for Soln. D.C.V as per ISO 4401-03-02.
Cartridge Valve Cover
CVC
16 S
DEA
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
7
23.5
32
43.5
L4 L5
80
85
102
125
H1 H2 H3 H4
55
40
50
60
---
25
25
30
---
23
33
39
12
18
24
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
H5
4
23
25
25
30
6
L7
6
6
2.3
2.5
4.3
7.5
L6
16
25
32
40
L8
---
7
4
8
4
6
10
8
ØD3
M8
M12
M20
M16
t1
14
20
33
26
ØD2
max
t2
10
10
10
10
L1
---
6
28.5
42.5
3
7
51
62.5
X
C
Y
L8 L8
L7 L7
L8
L7 L7
ØD1 drill
t2 deep.
Z1
ØD2
@ X, Y, Z1& Z2.
ØD3 tap
t1 deep.
Cover mounting interface as per ISO 7368.
Z2
L8
L10
L9
L9
With shuttle valve
Unit dimensions
ØD1
X
Z1
Y
Z2
T
B
P
A
X
C
Y
5
H2
H1
H4
32.5
31
40.5L3
4
L5
L4
L2
L6
L1
H3
H6 ~
L10
23
29
35
42.5
25
33
41
50
23
29
35
42.5
10.5
16
17
23
10 A/F
6 A/F
DEA
DEB
Normally closed with
directional spool valve
Normally opened with
directional spool valve
11
Note : Solenoid (refer spool type) to be ordered seperately.
a
A B
P
T
Spool type 'D'.
H5
H6
160
145
155
165
*M, Cover fixing S.H.C Screw.
6 A/F
A
B
