The Covers CVC*SDEAA and CVC*SDEAB 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 from either A (in case of cover
model CVC*SDEAA) or B (in case of cover model CVC*SDEAB) to the control port C of
the cartridge valve.
Thus, these configurations are very convenient in cartridge circuits when one wishes to
use a Cartridge valve as a solenoid controlled leakage-free gate ( leakage-free in the
direction of the cartridge from port B to port A) . This can be achieved by connecting
control port X to port B of the cartridge in manifold.
If done so , by using the cover model CVC*SDEAA , with solenoid in de-energized
condition, one can achieve a function of free flow with check from its port A to port B . By
energizing the solenoid , the passage in the cartridge (from port A to B or B to A) can be
blocked.
By using the cover model CVC*SDEAB, with solenoid de-energizes condition, one can
block the passage in the cartridge (from port A to B or B to A). By energizing the solenoid ,
free flow with check from its port A to port B can be achieved.
A Polyhydron Group Company
Description
Hydraulic symbol
COVER WITH BUILT IN SHUTTLE VALVE
FOR FITTING DIRECTION CONTROL VALVE
Model : CVC*SDEA*
Ref. No. D 03495
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
Z2
C
Y
Z1 X
A/B
TA/B
Y
Z2
C
P
Z1
X
A
B
B
A
BA
P
T
Z2
C
Y
Z1 X
B
A
BA
P
T
A
ABB
CVC*SDEAA
CVC*SDEAB
A Polyhydron Group Company
D 03495-CVC*SDEA*
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
DEAA
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
32.5
42.5
51
62.5
L4 L5
75
85
102
125
H1 H2 H3 H4
53
50
55
60
25
25
31
35
12
18
24
30
---
---
42.5
48
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
---
---
28
---
6
L7
6
6
2.3
3.0
4.7
7.5
L6
16
25
32
40
L8
26.2
23.5
32
43.5
4
6
10
8
ØD3
M8
M12
M20
M16
t1
14
20
33
26
ØD2
max
t2
10
10
10
10
L1
4
4
---
---
0
0
43
54
X
C
Y
L10 L10
L9 L9
L10
L9 L9
ØD1 drill
t2 deep.
Z1
ØD2
@ X, Y, Z1& Z2.
ØD3 tap
t1 deep.
Cover mounting interface as per ISO 7368.
Z2
L10
L12
L11
L9
With shuttle valve
Unit dimensions
ØD1L10
---
---
3
3
---
---
8
---
23
29
35
42.5
25
33
41
50
DEAA
DEAB
Port A of Shuttle valve is
connected to port A of D.C.V.
11
Note : Solenoid (refer spool type) to be ordered seperately.
a
A B
P
T
Spool type 'D'.
H6
158
150
160
165
T
B
P
A
X
C
Y
*M, Cover fixing S.H.C Screw.
32.5
L3
L1
L6
40.5L4
L5
L7
L2
30
L8
X
Z1
Y
Z2
5
H3 H2
H1
H5
H4
H6 ~
L11
23
29
35
42.5
L12
10.5
16
17
23
Port A of Shuttle valve is
connected to port B of D.C.V.
A
B