A Polyhydron Group Company
Description
Hydraulic symbol
COVER WITH STROKE LIMITER,
SHUTTLE VALVE AND
DIRECTIONAL CONTROL VALVE
Model : CVC*STS*
Ref. No. D 09524
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
Technical specifications
Section
The Covers with Stroke limiter model CVC*STS* are designed to hold polyhydron make
Cartridge valves model CV*** in cavities machined as per ISO 7368 , and control opening
and closing of the cartridge valve by electrical signal. Effective closing pressure is the
pressure from either port 'X' or 'Z1', which ever is higher.
Cover has built-in seat type shuttle valve to select pressure for closure of the cartridge.
The flow passing through the cartridge can be controlled by controlling the opening of the
poppet by means of a Stroke limiter screw provided in the cover . The throttling is
effective in either directions. Clockwise rotation of the Stroke Throttle screw will decrease
the flow passage, thereby decreasing the flow.
A check nut is provided to lock the Throttle Screw in its position.
A soft rubber cap prevents accidental damage to the Throttling Screw .
These Stroke limiters are more effective with cartridges having poppet with cushion nose.
Mounting interface : As per ISO 7368
Working pressure : 350 bar.
Hydraulic medium : Mineral oil.
Temperature range : -20 to + 80°C.
Viscosity range : 10 cSt to 380 cSt.
Fluid cleanliness required : ISO 4406 20/18/15 or better.
A
B
X
A
B
P
T
Y
C
Z1
Control on 'A'
X Z1
M
YC
x
A
B
x
x
BA
TP
a
Control on 'B'
X Z1
M
YC
x
x
x
BA
TP
a
PLUGGED
PLUGGED
a
A
B
A Polyhydron Group Company
D 09524-CVC*STS*
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
A
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
40.5
42.5
53.5
62.5
L4 L5
95
100
107
125
H1 H2 H3 H4
156
160
160
160
138
145
156
156
38
42
40
40
35.2
53
59
66
Mass
Kg.
apprx
*M. 4 nos. Cover fixing
S.H.C. Screw
(Class 12.9)
M8 x 90 Long
M12 x 100 Long
M16 x 100 Long
M20 x 100 Long
Tightening
Torque.
39 Nm
135 Nm
330 Nm
650 Nm
H5
4
12
18
24
30
6
6
6
4.0
6.0
7.7
11
16
25
32
40
32.5
42.5
51
62.5
4
6
10
8
ØD3
M8
M12
M20
M16
t1
14
20
33
26
ØD2
max
t2
10
10
10
10
L1
17
26
31.5
37.5
X
C
Y
L7 L7
L6 L6
L7
L6 L6
ØD1 drill
t2 deep.
Z1
ØD2
@ X, Y, Z1& Z2.
ØD3 tap
t1 deep.
Cover mounting interface as per ISO 7368.
Z2
L7
L9
L8
With shuttle valve
Unit dimensions
ØD1
A
Control on A
11
Note : Solenoid (refer spool type) to be ordered seperately.
a
A B
P
T
Spool type 'D'.
H6
86
90
90
90
a
C
X Y
A
P
T
B
Z1
X
Y
A
B
T S
With stroke limiter
B
Control on B
With Set screw
L3
L4
L1
L2
H5
5
H3
H4
H2 ~
H1 ~
32.5
31
40.5
12
H6
L5
A/F1
4
4
8
8
23
29
35
42.5
L6
25
33
41
50
L7
23
29
35
42.5
L8
10.5
16
17
23
L9
4
6 A/F
A/F1
