48 900/112 ED
1/20
— Logic elements are cartridge valves suitable for installation in
blocks or manifolds. They are available in five different sizes:
ND 16 - 25 - 32 - 40 - 50 - 63.
— They are designed to perform complex hydraulic circuits, using
functional compact blocks, with high flow rates and low pressure
drops.
— They are made of a cartridge valve with ISO7368 / DIN 24342
cavity bore and a control cover (4). The cover includes the
cartridge valves pilot lines; some versions are designed for the
installation of ISO 4401-03 (CETOP 03) valves, to realise different
control functions (see paragraph 8 for diagrams and function
descriptions). A low leakage version, obtained inserting a seal
into the seat no. 5, is also available.
— The cartridge valves are composed of a jacket (2), a poppet (1),
and a closing spring (3). The poppet can either be standard (S) or
with a damping nose (D), suitable for a smooth flow control during
the valve opening and closing phases.
— There are two different types of cartridge valves available:
- Q type: this valve is used for flow and directional control and as
a check valve.
The areas involved are:
A
1
- corresponding to the seat diameter area, considered as
reference area = 1
A
3
- corresponding to the jacket internal diameter area.
A
2
- corresponding to the difference between A
3
- A
1
The area ratio A
1
/A
3
is 1/1,66.
The valve opens when the pressure acting either on area
A
1
(flow from A to B) or on area A
2
(flow from B to A) is higher
than the pressure acting on area A
3
(added to the spring load
value).
- P type: this valve is used for pressure control.
In this case the areas A
1
and A
3
are equivalent (area ratio 1:1)
and the valve enables the flow direction from A to B only.
LOGIC ELEMENTS
SERIES 20
LC
*
CARTRIDGE VALVES
ISO 7368 - DIN 24342
LP
*
COVERS
OPERATING PRINCIPLE
48 900/112 ED
ND 16 - 25 - 32 - 40 - 50 - 63
p max 420 bar
Q max (see table of performances)
48 900/112 ED
2/20
Seals:
NBR seals for mineral oil
20 - for ND 16, 25, 32, 40 and 50
21 - for ND 63
(the overall and mounting dimensions
remain unchanged from 20 to 29)
LC
*
SERIES 20
1 - IDENTIFICATION CODE FOR CARTRIDGE VALVES
Nominal cracking pressure on section A1:
0.5 = 0,5 bar
1 = 1 bar (for ND 63 only)
2 = 2 bar (not available for ND 63)
4 = 4 bar
(other cracking pressure values available
on request)
Shutter type:
(area ratio A
1
/ A
3
):
QS = flow rate control (1:1,66)
QD = flow rate control with damping
nose (1:1,66)
PS = pressure control (1:1)
Cartridge valve
L C - / N
/
AVAILABLE NOMINAL SIZES
VERSIONS SYMBOL
16
ND16
25
ND25
32
ND32
40
ND40
50
ND50
63
ND63
x x x x x QS0.5
A
B
C
x x x x x x QS2
x x x x x QD4
A
C
B
x x x x x
x PS1
PS2
A
B
C
2 - HYDRAULIC FLUIDS
Use mineral oil-based hydraulic fluids HL or HM type, according to ISO 6743-4. For these fluids, use NBR seals. For fluids HFDR type
(phosphate esters) use FPM seals (code V). For the use of other kinds of fluid such as HFA, HFB, HFC, please consult our technical
department. Using fluids at temperatures higher than 80 °C causes a faster degradation of the fluid and of the seals characteristics.
The fluid must be preserved in its physical and chemical characteristics.
LL = Low leakage version,
with seal between C and B.
Omit if not required.
48 900/112 ED
3/20
LC
*
SERIES 20
3 - TECHNICAL CHARACTERISTICS (cartridge valve with control cover)
3.1 - Cartridge valves type Q performances (flow control function)
3.2 - Cartridge valves type P performances (pressure control function)
Max operating pressure LC cartridge valve bar 420
Max operating pressure limit
of cover type DP*, DPE*, DF1, DF2, LCM
bar 350
Max operating pressure with distributor installed on cover See technical characteristics of the distributor
Ambient temperature range °C -20 / +50
Fluid temperature range °C -20 / +80
Fluid viscosity range cSt 10 ÷ 400
Fluid contamination degree According to ISO 4406:1999 class 20/18/15
Recommended viscosity cSt 25
NOMINAL SIZE
16 25 32 40 50 63
Area A1
cm
2
1,54 3 6 8,76 14,8 24,6
Area A2
cm
2
1 2 4 5,76 9,7 16,1
Area A3
cm
2
2,54 4,9 10 14,3 24,3 40,7
Version S:
opening stroke h cm 0,8 1 1,25 1,6 1,8 2,3
opening volume
cm
3
2,03 4,9 12,5 22,88 43,74 96,26
max recommended flow l/min 250 500 900 1300 2000 3000
Version D:
opening stroke h cm
0,8 1,15 1,5 1,8 2,2 2,7
opening volume
cm
3
2,03 5,63 15 25,74 53,46 110
max recommended flow l/min 200 450 800 1100 1700 2700
Cracking
pressure
A→B
spring 0,5
bar
0,5 0,5 0,5 0,5 0,5 -
spring 2 2 2 2 2 2 2
spring 4 4 4 4 4 4 -
B→A
spring 0,5 0,9 1,1 0,7 0,76 0,8 -
spring 2 3,1 3 3,1 3 3,2 3,2
spring 4 6,15 5,9 5,4 5,9 5,9 -
Mass Kg 0,25 0,5 1,1 1,9 3,9 7,8
NOMINAL SIZE
16 25 32 40 50 63
Area A1 = Area A3
cm
2
2,54 4,9 10 14,4 24,3 40,7
Version S: max recommended flow l/min 200 400 900 1000 1500 2500
Cracking
pressure
spring 1
bar
- - - - - 1
spring 2 2 2 2 2 2 -
Mass Kg 0,25 0,5 1,1 1,9 3,9 7,8
48 900/112 ED
4/20
4 - CHARACTERISTIC CURVES (values obtained with viscosity 36 cSt at 50°C)
4.2 - Flow control function with damping nose LC*-QD
4.1 - LC*-QS flow control function and LC*-PS pressure control function
0
2
4
100 200
p
6
8
10
[bar]
Q [l/min]
300 400 500 600 700 800
GN16 GN25
GN32
0
2
4
1000 2000
6
8
10
Q [l/min]
3000 4000 5000
GN40 GN50 GN63
p
[bar]
0
2
4
100 200
p
6
8
10
[bar]
Q [l/min]
300 400 500 600 700 800
GN16 GN25
GN32
0
2
4
1000 2000
6
8
10
Q [l/min]
3000 4000 5000
GN40 GN50 GN63
p
[bar]
LC
*
SERIES 20
48 900/112 ED
5/20
5 - LC CARTRIDGE VALVES SEAT DIMENSIONS ACCORDING TO ISO 7368 / DIN 24342
6 - LP CONTROL COVERS INTERFACE DIMENSIONS ACCORDING TO ISO 7368 / DIN 24342
* = cover with special dimensions (see par. 9.2 ÷ 9.7)
LC CARTRIDGE VALVES NOMINAL SIZE
16 25 32 40 50 63
ØD1
H7
32 45 60 75 90 120
ØD2
H7
25 34 45 55 68 90
ØD3 max 16 25 32 40 50 63
ØD4 16 25 32 40 50 63
ØD4 max 25 32 40 50 63 80
H1 min 20 30 30 30 35 40
H2 ± 0,1 43 58 70 87 100 130
H3 56 72 85 105 122 155
H4 referred to diameter ØD4 34 44 52 64 72 95
H4 referred to diameter ØD4 max 29,5 40,5 48 59 65,5 86,5
H5 2 2,5 2,5 3 3 4
H6 min 11 12 13 15 17 20
H7 2 2,5 2,5 3 4 4
LP CONTROL COVERS NOMINAL SIZE
16 25 32 40 50 63
ØD5 M8 M12 M16 M20 M20 M30
ØD6 max 4 6 8 10 10 12
ØD7
H13
4 6 6688
L1 * 85 100 125 140 180
L2 ± 0,1 48 62 76 92,5 108 137,5
L3 ± 0,1 46 58 70 85 100 125
L4 ± 0,1 23 29 35 42,5 50 62,5
L5 ± 0,1 12,5 13 18 19,5 20 24,5
L6 ± 0,1 2 4 6 7,5 8 12,5
L7 * 13,5 15 20 20 27,5
L8 min 15 20 28 35 35 52
L9 min 8 8 8 8 8 8
+ 0,1
0
LC
*
SERIES 20
48 900/112 ED
6/20
7 - COVERS IDENTIFICATION CODE
Seals: NBR seals for mineral oil
Cartridge valve cover
two-way type LC
L P / 20 N
AVAILABLE NOMINAL SIZES
COVER NAME SYMBOL
DIAGRAM
PARAGRAPH
OVERALL
DIMENSIONS
PARAGRAPH
16
ND16
25
ND25
32
ND32
40
ND40
50
ND50
63
ND63
x x x x R
C
X
X
8.1 9.1
x x x x x x D 8.2 9.2
x x x x DZ 8.3 9.3
x x x x x DF1 8.4 9.4
x x x x DF2 8.5 9.5
x x x x x x Q 8.6 9.6
x x x x x x DP*
T
Y
C
C
P
P
X
X
Z1
Z1
8.7 9.7
x x x x x DPE* 8.8 9.7
LP
*
SERIES 20
(the overall and mounting
dimensions remain unchanged
from 20 to 29)
48 900/112 ED
7/20
LP
*
SERIES 20
Functional diagrams Description
Piloting of the cartridge valve by means of solenoid valve type DS3-TA
(to be ordered separately - see catalogue 41 150)
- solenoid valve OFF = A ↔ B intercepted flow
- solenoid valve ON = A ↔ B free flow
8 - FUNCTIONAL DIAGRAMS
8.2 - D cover for directional control and check valve function
8.1 - R cover for directional control and check valve function with external pilot X
Functional diagrams Description
Piloting of the cartridge valve through the X port, available on the mounting surface
or with pipe connection 1/4" BSP.
For ND 40 and ND 50 sizes, the external piloting function can be realised by using
control cover type D, with blanking plate code 1950751 (to be ordered separately).
8.4 - DF1 cover for directional control and check function with double pilot line
Functional diagrams Description
The DF1 cover gives the possibility of a double pilot line through X and Z1 ports.
The solenoid valve type DS3-TA must be ordered separately (see catalogue 41 150).
- solenoid valve OFF = A↔B intercepted flow
- solenoid valve ON = A → B free flow , B → A intercepted (if pilot line X is connected
with B and if Z1 is connected with A).
8.3 - DZ cover for directional control with possibility to pilot other cartridges in line
Functional diagrams Description
The DZ cover enables the piloting of its cartridge valves and also of other valves connected
to Z1 and Z2 pilot lines.
The solenoid valve type DS3-S10 must be ordered separately (see catalogue 41 150).
48 900/112 ED
8/20
LP
*
SERIES 20
8.7 - DP* cover for pressure control function
Functional diagrams Description
Pressure control function with a built-in relief valve.
- max. adjustment pressure DP4 = 140 bar - DP6 = 350 bar
The top blanking plate code 1950591 must be ordered separately.
Pressure control function with electrical unloading by means of DS3-SA2 solenoid valve
(to be ordered separately - see catalogue 41 150).
- solenoid valve OFF = unloading at minimum pressure
- solenoid valve ON = pressure controlled by the built-in relief valve.
B
A
X
Z1
XZ1
P
P
C
C
Y
T
X
A
AB
P
T
Pressure control function with electrical unloading and two step pressure by means
of the solenoid valves DS3-S2 (to be ordered separately - see catalogue 41 150),
MCI*-SAT/10 (for 16, 25 and 32 sizes - to be ordered separately) and MCD*-SAT (for 40, 50
and 63 sizes to be ordered separately - see catalogue 61 200)
- solenoid valve OFF = unloading at minimum pressure
- solenoid valve ON side a = pressure controlled by the relief valve integrated in the cover
- solenoid valve ON side b = pressure controlled by the relief valve (MCI* or MCD*)
8.5 - DF2 cover for directional control and check function with priority piloting from two external lines
Functional diagrams Description
The cartridge valve can be simultaneously piloted from X and Z1 lines.
The shuttle valve, integrated in the cover, enables the automatic selection of the pilot line
which has the higher pressure (priority line).
The solenoid valve type DS3-TA must be ordered separately (see catalogue 41 150).
- solenoid valve OFF = A ↔ B intercepted flow
- solenoid valve ON = A ↔ B free flow
8.6 - Q cover for flow control function
Functional diagrams Description
Flow control function by means of cover with stroke limiter.
For a better flow control and to avoid the wear of the valve seat, this cover is normally
used with a QD4 cartridge type.
48 900/112 ED
9/20
LP
*
SERIES 20
8.8 - DPE* cover for pressure control function
Pressure control function with electrical control and three steps pressure by means
of the solenoid valves DS3-S3 (to be ordered separately - see catalogue 41 150),
MCI*-DT/10 (for 16 - 25 and 32 sizes - to be ordered separately) and MCD*-DT/51 (for 40
and 50 sizes - to be ordered separately - see catalogue 61 200)
- solenoid valve OFF = pressure controlled by the cover relief valve.
- solenoid valve ON side a = pressure controlled by the relief valve on side b.
- solenoid valve ON side b = pressure controlled by the relief valve on side a.
Functional diagram Description
Pressure control function by means of PRED3 proportional valve (to be ordered separately
see catalogue 81 210).
- max. adjustment pressure DPE4 = 140 bar - DPE6 = 350 bar
- proportional valve OFF = unloading at minimum pressure
- proportional valve ON = proportional control of pressure
48 900/112 ED
10/20
9 - OVERALL AND MOUNTING DIMENSIONS FOR CONTROL COVERS
9.1 - R type covers
C
X
X
dimensions in mm
NOTE: Fastening bolts class 12.9 ISO 4762 are
recommended for the installation of the cover (to be
ordered separately)
LP16R
LP25R
LP32R
LP63R
LP
*
SERIES 20
NOMINAL SIZE
16 25 32 63
A 30 30 40 70
B 65 85 100 180
C 46 58 70 125
D1 13,5 19 25 46
D2 8,5 13 17 31
E 19 17 22 35
F 9,5 13,5 15 27,5
L 67,5 87,5 102,5 182,5
M 4 5 5 5
ports
ready for
restrictors
port X
restrictors M6x8 M10x10
Mass [Kg] 1,20 2,30 4,00 17,5
1 N. 4 fastening bolts (NOTE):
16 = M8x30
25 = M12x35
32 = M16x45
63 = M30x80
2 N. 1 sealing ring 90 Shore:
16 = OR type 2025 (6.07x1.78)
25 = OR type 2037 (9.25x1.78)
32 = OR type 2037 (9.25x1.78)
63 = OR type 2056 (14.00x1.78)
3 Locating pin:
16 = Ø3x10 25 = Ø5x14
32 = Ø5x14 63 = Ø6x14
4 Identification label
5 Plug X: 1/4” BSP
48 900/112 ED
11/20
9.2 - Covers type D
LP
*
SERIES 20
dimensions in mm
LP16D
LP25D
LP32D
LP40D
LP50D
LP63D
NOMINAL SIZE
16 25 32 40 50 63
A 30 30 40 40 50 70
B 65 85 100 125 140 180
B* 75 85 100 125 140 180
C 46 58 70 85 100 125
D1 13,5 19 25 31 31 46
D2 8,9 13 17 21 21 31
E 19 17 22 30 30 35
F 9,5 13,5 15 20 20 27,5
F* 19,5 13,5 15 20 20 27,5
G 52 60,2 65,2 73,2 82,7 111,5
H 48 58 65,5 78 85,5 105,5
L 67,5 87,5 102,5 127,5 142,5 182,5
M 4 5 5 5 5 7
ports ready
for
restrictors
P, A
restrictors M6x8 M8x8
Mass [Kg] 1,20 2,30 4,00 4,80 7,6 17,5
1 N. 4 fastening bolts (NOTE):
16 = M8x30 25 = M12x35
32 = M16x45 40 = M20x50
50 = M20x60 63 = M30x80
2 n° 2 sealing rings 90 Shore :
16 = OR type 2025 (6.07x1.78)
25 = OR type 2037 (9.25x1.78)
32 = OR type 2037 (9.25x1.78)
40 = OR type 2050 (12.42x1.78)
50 = OR type 2050 (12.42x1.78)
63 = OR type 2056 (14x1.78)
3 Locating pin:
16 = Ø3x10 25 = Ø5x14
32 = Ø5x14 40 = Ø5x14
50 = Ø6x14 63 = Ø6x14
4 Identification label
5 Mounting surface ISO 4401-03
(CETOP 4.2-4-03-350)
NOTE: Fastening bolts class 12.9 ISO 4762 are
recommended for the installation of the cover (to
be ordered separately)
48 900/112 ED
12/20
9.3 - Covers type DZ
LP16DZ
LP25DZ
LP32DZ
LP40DZ
dimensions in mm
NOMINAL SIZE
16 25 32 40
A 30 30 40 50
B 65 85 100 125
B* 75 85 100 125
C 46 58 70 85
D1 13,5 19 25 31
D2 8,9 13 17 21
E 19 17 22 30
F 9,5 13,5 15 20
F* 19,5 13,5 15 20
G 52 60,2 65,2 84
H 48 58 65,5 78
L 67,5 87,5 102,5 127,5
M 4 5 5 5
ports
ready for
restrictors
M6x8
P, A, B, C
Mass [Kg] 1,20 2,30 4,00 4,3
1 N. 4 fastening bolts (NOTE):
16 = M8x30 25 = M12x35
32 = M16x45 40 = M20x50
2 n° 4 sealing rings 90 Shore :
16 = OR type 2025 (6.07x1.78)
25 = OR type 2037 (9.25x1.78)
32 = OR type 2037 (9.25x1.78)
40 = OR type 2050 (12.42x1.78)
3 Locating pin:
16 = Ø3x10 25 = Ø5x14
32 = Ø5x14 40 = Ø5x14
4 Identification label
5 Mounting surface ISO 4401-03
(CETOP 4.2-4-03-350)
LP
*
SERIES 20
NOTE: Fastening bolts class 12.9 ISO 4762 are
recommended for the installation of the cover (to
be ordered separately)
48 900/112 ED
13/20
9.4 - Covers type DF1
LP16DF1
LP25DF1
LP32DF1
LP40DF1
LP50DF1
dimensions in mm
NOMINAL SIZE
16 25 32 40 50
A 40 40 40 50 50
B* 80 85 102 125 140
B 65 85 102 125 140
C 46 58 70 85 100
D1 13,5 19 25 31 31
D2 8,5 13 17 21 21
E 18 17 22 30 30
F* 17 13,5 16 20 20
F 9,5 13,5 16 20 20
G 47,5 64 72,5 84 91,5
H 48 58 66,5 78 85,5
L 67,5 87,5 104,5 127,5 142,5
M 4 5 5 5 5
N 4,5 3,5 3,5 - -
Mass [Kg] 1,8 2,3 4 6,7 7,6
1 N. 4 fastening bolts (NOTE):
16 = M8x30 25 = M12x35
32 = M16x45 40 = M20x60
50 = M20x60
2 N° 3 sealing rings 90 Shore :
16 = OR type 2037 (9.25x1.78)
25 = OR type 2037 (9.25x1.78)
32 = OR type 2037 (9.25x1.78)
40 = OR type 2050 (12.42x1.78)
50 = OR type 2050 (12.42x1.78)
3 Locating pin
16 = Ø3x10 40 = Ø5x14
25 = Ø5x14 50 = Ø6x14
32 = Ø5x14
4 Identification label
5 Mounting surface ISO 4401-03
(CETOP 4.2-4-03-350)
LP
*
SERIES 20
NOTE: Fastening bolts class 12.9 ISO
4762 are recommended for the installation
of the cover (to be ordered separately)
48 900/112 ED
14/20
X
Y
Z1
G
C
F
F*
B
31
H
C
B*
L
4.8
A
M
D1
D2
A
T
P
4
5
E
2
3
1
9.5 - Covers type DF2
LP16DF2
LP25DF2
LP32DF2
LP40DF2
LP
*
SERIES 20
dimensions in mm
NOMINAL SIZE
16 25 32 40
A 40 40 40 50
B 65 85 102 125
B* 80 85 102 125
C 46 58 70 85
D1 13,5 19 25 31
D2 8,5 13 17 21
E 18 17 22 30
F 9,5 13,5 16 20
F* 17 13,5 16 20
G 48 61 68,7 81
H 48 58 65,5 71,2
L 67,5 87,5 102,5 104,5
M 4 5 5 5
ports ready for
restrictors
M6x8
A
Mass [Kg] 1,8 2,3 4 6,7
1 N. 4 fastening bolts (NOTE):
16 = M8x30 25 = M12x35
32 = M16x45 40 = M20x60
2 N° 3 sealing rings 90 Shore:
OR type 2037 (9.25x1.78)
3 Locating pin
16 = Ø3x10 32 = Ø5x14
25 = Ø5x14 40 = Ø5x14
4 Identification label
5 Mounting surface ISO 4401-03
(CETOP 4.2-4-03-350)
NOTE: Fastening bolts class 12.9 ISO 4762
are recommended for the installation of the
cover (to be ordered separately)
48 900/112 ED
15/20
4
X
M
L
F
BC
2
F
R1
R2
6
A
5
B
C
3
E
D2
D1
1
9.6 - Covers type Q
LP16Q
LP25Q
LP32Q
LP40Q
LP50Q
LP63Q
C
X
dimensions in mm
LP
*
SERIES 20
1 N. 4 fastening bolts (NOTE):
16 = M8x30 25 = M12x35
32 = M16x35 40 = M20x70
50 = M20x70 63 = M30x90
2 n° 1 sealing ring 90 Shore:
16 = OR type 2025 (6.07x1.78)
25 = OR type 2037 (9.25x1.78)
32 = OR type 2037 (9.25x1.78)
40 = OR type 2050 (12.42x1.78)
50 = OR type 2050 (12.42x1.78)
63 = OR type 2056 (14x1.78)
3 Locating pin:
16 = Ø3x10 25 = Ø5x14
32 = Ø5x14 40 = Ø5x14
50 = Ø6x14 63 = Ø6x14
4 Identification label
5 Stroke limiter
clockwise rotation to reduce stroke
16 = 1 turn: 1,25 mm - spanner 18
25 = 1 turn: 1,25 mm - spanner 18
32 = 1 turn: 1,25 mm - spanner 18
40 = 1 turn: 2,00 mm - spanner 24
50 = 1 turn: 2,50 mm - spanner 30
63 = 1 turn: 2,00 mm - spanner 36
6 Locking nut:
16 = spanner 18 25 = spanner 18
32 = spanner 18 40 = spanner 24
50 = spanner 30 63 = spanner 36
7 Plug X:
40 = 1/4” BSP
50 = 1/4” BSP
63 = 1/4” BSP
NOTE: Fastening bolts class 12.9 ISO 4762 are
recommended for the installation of the cover (to
be ordered separately)
NOMINAL SIZE
16 25 32 40 50 63
A 35 40 40 60 60 80
B 65 85 100 125 140 180
C 46 58 70 85 100 125
D1 13,5 19 25 31 31 46
D2 8,5 13 17 21 21 31
E 18 17 22 30 30 45
F 9,5 13,5 15 20 20 27,5
L 67,5 87,5 102,5 127,5 142,5 182,5
M 4 5 5 5 5 5
R1 55,5 ÷ 63,5 62,5 ÷ 74 58,5 ÷ 73,5
38,5 ÷ 57 44,5 ÷66,5
52 ÷ 81
R2 45÷ 51,5 45÷ 51,5 45÷ 51,5 44 ÷ 52 44 ÷ 52 165 ÷ 194
ports ready for
restrictors
port X
M5x8 M6x8 M10x10
Mass [Kg] 1,6 3 5 8,9 11,7 18
48 900/112 ED
16/20
LP
*
SERIES 20
dimensions in mm
NOMINAL SIZE
16 25 32 40 50 63
A 40 40 40 50 50 70
B 65 85 100 125 140 180
B* 75 85 100 125 140 180
C 46 58 70 85 100 125
D1 13,5 19 25 31 31 46
D2 8,5 13 17 21 21 31
E 18 17 22 30 30 35
F 9,5 13,5 15 20 20 27,5
F* 19,5 13,5 15 20 20 27,5
G 52 64 71,5 84 91,5 102,7
H 48 58 65,5 78 85,5 105,5
L 67,5 87,5 102,5 127,5 142,5 182,5
M 4 5 5 5 5 5
N 24 25 25 25 25 35
R 45÷ 51,5 45÷ 51,5 45÷ 51,5 44 ÷ 52 44 ÷ 52 44 ÷ 52
M5x6 M6x8 M8x8
X
C
Ø1,2
Ø0,7
Ø1,2
Ø0,7
Ø1,2
Ø1,5
Ø2,0
Ø1,2
Ø2,0
Ø1,5
Ø2,0
Ø1,5
Mass
[Kg]
1,36 2,46 4,16 7,40 10,50 17,5
1 N. 4 fastening bolts (NOTE):
16 = M8x30 25 = M12x35
32 = M16x45 40 = M20x50
40 = M20x60 63 = M30x80
2 90 Shore sealing rings :
16 = n° 3 OR type 2025 (6.07x1.78)
25 and 32 = n° 3 OR type 2037 (9.25x1.78)
40 and 50 = n° 3 OR type 2050 (12.42x1.78)
63 = n° 3 OR type 2056 (14.00x1.78)
3 Locating pin: 16 = Ø3x10
25, 32 and 40 = Ø5x14
50 and 63 = Ø6x14
4 Identification label
5 Plug X: 1/4” BSP
6 Mounting surface ISO 4401-03
(CETOP 4.2-4-03-350)
7 Pressure control valve
8 Countersunk hex adjustment screw.
Clockwise rotation to increase pressure
16, 25 and 32 = spanner 5
40, 50 and 63 = spanner 6
9 Locking nut:
16, 25 and 32 = spanner 17
40, 50 and 63 = spanner 19
87
N
9
1
R
E
P
D2
D1
3
6
B*
CX
H
31
Y
P
X
4
G
T
F*
C
A
M
B
L
5
4
2
C
F
Z1
DP* restrictors
M5x6 M6x8 M6x8 M6x8 M6x8
X
C
Z1
Ø0,8
Ø0,6
Ø6
Ø0,7
Ø0,6
Ø6
Ø1
Ø0,8
Ø6
Ø1
Ø0,8
Ø6
Ø1
Ø0,8
Ø6
DPE* restrictors
9.7 - Covers type DP* and DPE*
T
Y
C
C
P
P
X
X
Z1
Z1
NOTE: Fastening bolts class 12.9 ISO 4762 are recommended for the installation of the cover (to be ordered
separately)
LP16DP*
LP25DP*
LP32DP*
LP40DP*
LP50DP*
LP63DP*
LP16DPE*
LP25DPE*
LP32DPE*
LP40DPE*
LP50DPE*
48 900/112 ED
17/20
LCM*
SERIES 20
10 - MONITORED LOGIC ELEMENTS
Monitored logic elements are made of a directional function cartridge valve and a cover with built-in inductive proximity sensor.
The PNP type sensor with closed contact states the condition of A↔B intercepted flow.
10.1 - Identification code of monitored logic elements
10.2 - Characteristic Curves
(values obtained with viscosity 36 cSt at 50°C)
0
2
4
100 200
p
6
8
10
[bar]
Q [l/min]
300 400 500 600 700 800
GN16 GN25
GN32
Seals: NBR seals for mineral oil
Cartridge valve area ratio (A
1
/ A
3
) = 1:1,66
Cover functions
(for details, see par. 10.3 and 10.4)
D = directional control and check valve function
Z = directional control and piloting of other cartridges
(not available for ND 16)
Logic element
(cartridge and cover)
with closed position electric
monitoring
Nominal dimension:
16 = ND 16
25 = ND 25
32 = ND 32
40 = ND 40
50 = ND 50
Series no.:
(the overall and mounting dimensions
remain unchanged from 20 to 29)
Nominal cracking pressure on section
A
1
= 4 bar
Version with damping nose
CL
M - Q D 4 / 20
N
48 900/112 ED
18/20
LCM*
SERIES 20
10.3 - Functional diagram of cover D for directional control and check valve function
10.4 - Functional diagrams for cover Z for directional control and piloting of other cartridges
Functional diagram Description
Piloting of cartridge valve by means of solenoid valve type DS3-TA (to be ordered
separately - see catalogue 41 150)
- solenoid valve OFF = A → B intercepted flow
- solenoid valve ON = A ↔ B free flow
Piloting of cartridge valve by means of connection plate code 1950751 to be ordered
separately.
Functional diagram Description
Piloting of cartridge valve by means of solenoid poppet valve type DT03-3A (to be ordered
separately - see catalogue 42 200). ISO 4401-03 manifold type DN6 (cod.0294329) that
allows to intercept the flow from two lines, obtaining a tight or the free flow.
- solenoid valve OFF = sealing tight - A ↔ B locked flow
- solenoid valve ON = flow A ↔ B free flow
Piloting of cartridge valve by means of connection plate code 1950751 to be ordered
separately.
48 900/112 ED
19/20
LCM*
SERIES 20
10.5 - OVERALL AND MOUNTING DIMENSIONS OF MONITORED LOGIC ELEMENTS
dimensions in mm
1 N. 4 fastening bolts (NOTE):
16 = M8x30 40 = M20x60
25 = M12x35 50 = M20x60
32 = M16x45
2 n° 3 sealing rings 90 Shore :
16 = OR type 2025 (6.07x1.78) (for ND 16
there are only 2 OR)
25 and 32 = OR type 2037 (9.25x1.78)
40 and 50 = OR type 2050 (12.42x1.78)
3 Locating pin:
16 = Ø3x10 40 = Ø5x14
25 = Ø5x14 50 = Ø6x14
32 = Ø5x14
4 Identification label
5 Mounting surface ISO 4401-03
(CETOP 4.2-4-03-350)
6 Proximity sensor
7 Connector for proximity sensor
(to be ordered separately see par. 10.6)
8 Cartridge valve always supplied with the
cover
NOTE1: fastening bolts class 12.9 ISO 4762 are
recommended for cover installation (to be ordered
separately)
NOTE2: for cartridge valve seat dimensions see par. 5
LCM16D-QD4
LCM25D-QD4
LCM32D-QD4
LCM40D-QD4
LCM50D-QD4
LCM25Z-QD4
LCM32Z-QD4
LCM40Z-QD4
LCM50Z-QD4
NOMINAL SIZE
16 25 32 40 50
A 55 60 70 75 90
B 78,5 85 100 125 140
C 46 58 70 85 100
D1 13,5 19 25 31 31
D2 8,5 19 17 21 21
E 18 17 22 30 30
F* 19,5 13,5 15 20 20
F 9,5 13,5 15 20 20
G 52 60,2 67,7 80,2 87,7
H 48 58 65,5 105 85,5
L 81 92 102,5 127,5 142,5
M 4 5 5 5 5
N 70 70 65 60 55
R 111 132 155 180 212
ports ready
for restrictors
M6x8.5
P, A
B (on cover Z only)
Mass [Kg] 2,1 3,3 5,3 9,5 14,5
48 900/112 ED
20/20
DUPLOMATIC OLEODINAMICA S.p.A.
20015 PARABIAGO (MI)  Via M. Re Depaolini 24
Tel. +39 0331.895.111
Fax +39 0331.895.339
www.duplomatic.com  e-mail: sales.exp@duplomatic.com
REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS.
PROXIMITY SENSOR
PNP TYPE
ELECTRIC CONNECTOR (to be ordered separately)
code: ECM3S / M12L / 10
Connector: pre-wired connector M12 - IP68
cable: with 3 conductors 0.34 mm
2
- length 5 mt - cable material:
polyurethane resin (oil resistant)
LEDS:
GREEN LED: show the presence of power supply voltage to the
connector. If the LED is off, the connector is not supplied.
YELLOW LED: show the valve condition:
- valve at rest yellow LED on - green LED on
- switched valve yellow LED off - green LED off
10.6 - Technical characteristics of proximity sensor and relevant connector
Rated voltage V DC 24
Power supply voltage range V DC 10 ÷ 30
Absorbed current mA 200
Output normally open contact
Electric protection
polarity inversion
short circuit
overvoltage
Electric connection with connector
Max operating pressure bar 350
Operating temperature range °C -25 / +80
Class of protection according to
CEI EN 60529 standards
(atmospheric agents)
IP68
Spool position LED (NOTE) NO
NOTE: The led is placed in the connector and its light is
YELLOW.
BROWN
BLACK
BLUE
valve closed = closed contact (A↔B intercepted flow)
valve open = open contact (A↔B free flow)
LCM*
SERIES 20