TESTO ITC KORINNA 28mm Allargato
MONOBLOCK
DIRECTIONAL CONTROL VALVE
SD18
2 DAT006E
Features
5
th
edition October 2001:
This edition supercedes all prior documents.
Simple, compact and heavy duty designed monoblock from 1 to 6 sections for open and closed centre hydraulic systems.
H Fitted with a direct or pilot operated main pressure relief valve.
H Parallel circuit.
H Optional carry--over port.
H Diemeter 25 mm -- 0.98 in interchangeable spools.
H A wide variety of service port valves.
H Available manual, pneumatic, electro--pneumatic, hydraulic and electro--hydraulic spool control kits.
WARNING!
All specifications of this catalogue refer to the standard product at thisdate.
Walvoil, oriented to a continuous improvement, reserves the right to
discontinue, modify or revise the specifications, without notice.
WALVOIL IS NOT RESPONSIBLE FOR ANY DAMAGE CAUSED BY AN
INCORRECT USE OF THE PRODUCT.
Additional information
This catalogue shows the product in the most standard configurations.
Please contact Customer Service Dpt. for more detailed information or
special request.
SD18
3DAT006E
Contents
Contents
Working conditions 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensional data 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic circuit 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance data 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ordering codes 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inlet relief options 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spool options 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
“A” side spool positioners 16. . . . . . . . . . . . . . . . . . . . . . . . . . .
“B” side options 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proportional hydraulic spool control 24. . . . . . . . . . . . . . . . . .
Port rellief options 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outlet port conversion 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation and maintenance 29. . . . . . . . . . . . . . . . . . . . . . . .
Working conditions
SD18
4 DAT006E
Thiscatalogueshowstechnicalspecificationsanddiagramsmeasuredwithmineraloilof46mm
2
/s -- 46 cSt viscosityat 40°C tempera-
ture.
Nominal flow rating 160 l/min
Operating pressure (maximum) 250 bar 3620 psi
Max. back pressure on outlet port T 25 bar 360 psi
Internal leakage A(B)®T
Dp=100 bar -- 1450 psi
fluid and valve at 40°C
4 cm
3
/min 0.24 in
3
/min
Hydraulic fluid Mineral oil
Fluid temperature with NBR seals from --20° to 80°C
with FPM (VITON) seals from --20° to 100°C
Viscosity operating range from 15 to 75 mm
2
/s from 15 to 75 cSt
min. 12 mm
2
/s 12 cSt
max. 400 mm
2
/s 400 cSt
Max level of contamination 19/16 -- ISO 4406
Ambient temperature from --40° to 60°C
NOTE -- For different conditions please contact Customer Service.
Dimensional data
WALVOIL
P0000001
106200034
T
P
77
3.03
97.5
3.84
52
2.05
30.5
1.20
78
3.07
152
5.98
15
0.59
45
1.77
17.5
0.69
320
12.6
15
0.59
F
E
32
1.26
53
2.09
53
2.09
46
1.81
4
0.16
M12
35
1.38
92
3.62
124
4.88
29
1.14
60
2.36
70
2.76
8.2
0.32
WALVOIL
P0000001
106200034
Valve code
Production batch :
P00 = production year (2000)
00001 = progressive number
10.5
0.41
Æ
Posit.1
Posit.0
Posit.2
Posit.3
182
7.16
SD18
5DAT006E
T
Y
P
E
E F Weight
T
Y
P
E
E F Weight
T
Y
P
E
mm in mm in kg lb
T
Y
P
E
mm in mm in kg lb
SD18/1--P
159 6.26 129 5.08 13.2 29.1
SD18/4--P
318 12.5 288 11.3 28.8 63.5
SD18/2--P
212 8.35 182 7.17 18.6 41
SD18/5--P
371 14.6 341 13.4 34.1 75.2
SD18/3--P
265 10.4 235 9.25 23.5 51.8
SD18/6--P
424 16.7 394 15.5 39.4 86.9
Standard threads
PORT
BSP
(ISO 228/1)
UN--UNF
(ISO 11926--1)
Inlet P and carry--over C G 3/4 1 5/16--12 UN--2B (SAE 16)
A and B ports G 3/4 1 1/16--12 UN--2B (SAE 12)
Outlet T G 1 1 5/16--12 UN--2B (SAE 16)
PILOT PORTS
Hydraulic G 1/4 9/16--18 UNF--2B (SAE 6)
Pneumatic NPTF 1/8--27 NPTF 1/8--27
Hydraulic circuit
P
A1 B1 A2 B2
T
Ex.: SD18/2--P(KG3--120)/18L/18L/AET
120
1750
”A” port line
Free line
Lever box
Tank line
”B” port line
Pressure line
Pressure relief valve
Spool
A side spool positioner
Load check valve
Allen wrench 8
24 Nm / 17.7 lbft
T
P
A
B
Open centre plug
Allen wrench 12
42 Nm / 31 lbft
Standard configuration Upper inlet and outlet ports configuration
P
A1 B1 A2 B2
T
Ex.: SD18/2--P(KG3--120)/18L/18L/AET--PSA
120
1750
SD18
6 DAT006E
Work port to outlet
Inlet to work port
Open centre
Performance data (pressure drop vs. flow)
0
10
20
30
40
0 50 100 150 200
Flow
Pressure drop
From side inlet to side outlet.
From side inlet to A port (spool in position 1) or B port (spool in position 2).
From A port (spool in position 2) or B port (spool in position 1) to side outlet.
NOTE -- Measured with spool type 1.
A1 A2 A3 A4 A5 A6
B1 B2 B3 B4 B5 B6
P
T
540
360
180
(l/min)
(bar)
(psi)
A1 A2 A3 A4 A5 A6
B1 B2 B3 B4 B5 B6
P
T
A1 A2 A3 A4 A5 A6
B1 B2 B3 B4 B5 B6
P
T
0
10
20
30
40
0 50 100 150 200
Flow
Pressure drop
540
360
180
(l/min)
(bar)
(psi)
0
10
20
30
40
0 50 100 150 200
Flow
Pressure drop
540
360
180
(l/min)
(bar)
(psi)
2 sections
4 sections
6 sections
P®A
6
(B
6
)
P®A
1
(B
1
)
A
6
(B
6
)®T
A
1
(B
1
)®T
SD18
7DAT006E
SD18
8 DAT006E
4. “A” side spool positioners page 16
3. Spools page 12
2. Inlet relief options page 10
1. Body kits *
Ordering codes
1.
Ex.: SD18/ 2 -- P (KG3 -- 120) / 1 8 L / 1C 8IM . P3(G3 -- 120) / AET -- PSA *
TYPE CODE DESCRIPTION
Without service port valves prearrangement
1--P 5KC1713000 1 section
2--P 5KC1723000 2 sections
3--P 5KC1743000 3 sections
4--P 5KC1763000 4 sections
5--P 5KC1783000 5 sections
6--P 5KC1803000 6 sections
TYPE CODE CIRCUIT DESCRIPTION
1 3CU1610130 Double acting, 3 positions, with A and B
closed in neutral position
2 3CU1625130 Double acting, 3 positions, with A and B open
to tank in neutral position
3 3CU1631130 Single acting on A, 3 positions, B plugged
requires G3/4 plug (see part I)
4 3CU1635130 Single acting on B, 3 positions, A plugged
requires G3/4 plug (see part I)
Spools for 8IM hydraulic control
1C 3CU1610400 As type 1
2C 3CU1625400 As type 2
3C 3CU1631400 As type 3
Special spools: need special body kit
5 3CU1641130 Double acting, 4 positions, with A and B
to tank in 4
th
position (float); for type 13 spool
positioner
8F 3CU1661100 Double acting, 3 positions, with regenerative
in position 2
8IM
4.
TYPE CODE DESCRIPTION
8 5V08120000 With spring return in neutral position
9B 5V09120000 With detent in position 1 and spring return
neutral position
10B 5V09120000 With detent in position 2 and spring return
neutral position
11B 5V11220000 With detentinpositions1 and 2, springreturn
neutral position
to be continued on next page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PSA
2. 3. 4. 5. 6. 7.
I
Include body, seals, rings and load check valve.
9.
9.
1.
1
st
section
following section
NOTE (*) -- Items are referred to BSP thread.
TYPE CODE DESCRIPTION
VMD20/1 direct pressure relief valve type K (standard)
(KG2--80) 5KIT120112 Range 25 to 80 bar / 360 to 1150 psi
standard setting 80 bar / 1150 psi
(KG3--120) 5KIT120113 Range 63 to 200 bar / 900 to 2900 psi
standard setting 120 bar / 1750 psi
(KG4--220) 5KIT120114 Range 160 to 250 bar / 2300 to 3600 psi
standard setting 220 bar / 3200 psi
VMP20/1 pilot operated pressure relief valve type X
(XG--120) X007211120 Range 63 to 250 bar / 900 to 3600 psi
standard setting 120 bar / 1750 psi
Standard setting is referred to 10 l/min flow.
SV 3XTAP535410 Relief valve blanking plug
6.
PSL
8--11--15--
16--19--20
9B--10B--11B
13
8P
8EP3
8EI3
7.
P
8. 9.
Pressure relief valve setting in bar
Port relief valve setting in bar
J
F
J
F
SD18
9DAT006E
Ordering codes
II Optional handlever
I Ports plug *
9. Inlet and outlet selection * page 6
8. Outlet port conversion * page 28
7. Port relief options * page 26
6. Hydraulic spool control kit * page 24
5. “B” side spool control kits page 23
4. “A” side spool positioners page 16
9.
TYPE CODE DESCRIPTION
L 5LEV120000 Standard lever
SLP 5COP120000 Without lever, with dust--proof plate
SLC 5COP220000 Without lever, with cap
TYPE CODE DESCRIPTION
PSL 3XTAP732200 Nr.1 G3/4 plug for side inlet
3XTAP740210 Nr.1 G1 plug for side outlet
PSA 3XTAP732200 Nr.1 G3/4 plug for upper inlet
3XTAP740210 Nr.1 G1 plug for upper outlet
TYPE CODE DESCRIPTION
Need special body kit
8IM 5IDR220000 Proportional hydraulic operated with spring
return in position 0, requires spools type C
8.
2.
6.
5.
3.
TYPE CODE DESCRIPTION
Kit with anti--shock: need special body kit
Range from 80 to 200 bar / 1150 to 2900 psi
P1(G3--100) 606001000 Mounted on port A
P2(G3--100) 606001000 Mounted on port B
P3(G3--100) 606001100 Mounted on ports A and B
Standard setting is 100 bar -- 1450 psi to 10 l/min flow.
TYPE CODE DESCRIPTION
AL01/M12x250 170013025 For L lever box L= 250 mm / 9.84 in
TYPE CODE DESCRIPTION
11 5V11120000 With detent in positions 1, 0 and 2
15 5V15120000 With detent in positions 1 and 0
16 5V16120000 With detent in positions 2 and 0
19 5V19120000 With spring return in position 0 from 1
20 5V19120000 With spring return in position 0 from 2
8P 5V08120701 ON/OFF pneumatic kit
8EP3 5V08120735 12 VDC ON/OFF electro--pneumatic kit
5V08120736 24 VDC ON/OFF electro--pneumatic kit
8EI3 5V08120350 12 VDC ON/OFF electro--hydraulic kit
5V08120351 24 VDC ON/OFF electro--hydraulic kit
Special positioner
13 5V13020000 With detent in position 3 and spring return
neutral position, for spool type 5
TYPE CODE DESCRIPTION
AET 3XTAP640250 Open centre plug
AE 3XGIU541600 G3/4 carry--over sleeve
AEK 3XTAP540560 Closed centre plug
II
TYPE CODE DESCRIPTION
G3/4 3XTAP732200 For single acting (spools type 3 and 4)
L
SLP
SLC
K(G2--G3--G4) X(G3) SV
PSA AET
AE
AEK
8IM
8F
1C--2C--3C
1--2--3--4
5
NOTE J F -- Spools and positioners with the
same symbol must be assembled together.
J
F
J
F
J
Direct pressure relief valve
Inlet relief options
Spring nr. 4 (red band)Spring nr. 3 (blue band)Spring nr. 2 (green band)
VMD20 ( K G 3 -- 120 )
Pressure setting in bar (standard 120 / 1750 psi)
Performance data
Adjustment type
0
100
200
300
400
0 50 100 150 200
0
100
200
300
400
0 50 100 150 200
Flow
Pressure
(l/min)
(psi)
(bar)
0
100
200
300
400
0 50 100 150 200
Flow
Pressure
(l/min)
(psi)
(bar)
4500
3000
1500
Flow
Pressure
(l/min)
(psi)
(bar)
0.12”
RESPONSE TIME
10%
120 bar
1750 psi
90%
95%
105%
Pressure
Time (”)
(% DP)
Response time
Adjustment type (G, H)
Spring type (2, 3, 4).
67 max.
2.64
G: with screw H: valve set and locked
Wrench 32 -- 42 Nm / 31 lbft
Allen wrench 5
Wrench 16 -- 24 Nm / 17.7 lbft
4500
3000
1500
4500
3000
1500
SD18
10 DAT006E
SV: relief valve blanking plug
Pilot operated pressure relief valve
Inlet relief options
0.32”
RESPONSE TIME
10%
120 bar
1750 psi
90%
95%
105%
Pressure
Time (”)
(% DP)
Response time
0
100
200
300
0 50 100 150 200
Flow
Pressure
Range setting
3000
2000
1000
4000
(l/min)
(psi)
(bar)
VMP20 ( X G -- 120 )
Pressure setting in bar (standard 120 / 1750 psi)
Performance data
Adjustment type
Adjustment type (G, H)
78 max.
3.07
Wrench 36 -- 42 Nm / 31 lbft
Allen wrench 8
42 Nm / 31 lbft
Wrench 13 -- 24 Nm / 17.7 lbft
G: with screw H: valve set and locked
Wrench 13 -- 24 Nm / 17.7 lbft
88
3.46
Cap on request: code 3COP117260
Allen wrench 6
SD18
11DAT006E
F
J
Y
P
(on ports)
= 63bar/900psi
P
(on ports)
= 100bar/1450psi
P
(on ports)
= 250bar/3600psi
Q = 160l/min
0
40
80
120
160
200
0 2 4 6 8 10
Flow
Stroke
0.1 0.2
(mm)
(l/min )
(in)
0.3
0
40
80
120
160
200
0 2 4 6 8 10
Flow
Stroke
Performance data
Spool metering A(B)®TSpool metering P®A(B)
0.1 0.2
(mm)
(l/min )
(in)
0.3
F
J
Y
F
J
Y
Type 1
Spool options
201
201
201
A B
P T
P--A--B--T closed, with flow through line (LC) open
A
"
P ® A B ® T
P® B A ® T
stroke =
stroke =
-- 10 mm
-- 0.39 in
+ 10 mm
+ 0.39 in
A B
P T
A B
P T
A B
T
P LC
T
259
10.2
45
1.77
57
2.24
20
0.79
A B
T
P LC
T
A B
T
P LC
T
SD18
12 DAT006E
201
B
P T
201
A
P T
Type 4
Type 3
Type 2
Spool options
201
A B
P T
A B
T
P LC
T
B
T
P LC
T
Port A plugged
A
T
P LC
T
Port B plugged
SD18
13DAT006E
F
J
Y
P
(on ports)
= 63bar/900psi
P
(on ports)
= 100bar/1450psi
P
(on ports)
= 250bar/3600psi
Q = 160l/min
0
40
80
120
160
200
0 2 4 6 8 10
Flow
Stroke
0.1 0.2
(mm)
(l/min )
(in)
0.3
0
40
80
120
160
200
0 2 4 6 8 10
Flow
Stroke
0.1 0.2
(mm)
(l/min )
(in)
0.3
Spool metering A(B)®T
Performance data
Spool metering P®A(B)
F
J
Y
F
J
Y
Type 5
Spool options
A
"
P ® A B ® T
P® B A ® T
stroke =
stroke =
AA
stroke =
A(B) ® T (float)
P--A--B--T closed, flow through line (LC) open
201
201
201
201 3
3
3
3
+ 7 mm
+ 0.28 in
-- 8 mm
-- 0.32 in
-- 16 mm
-- 0.63 in
A B
P T
A B
P T
A B
P T
A B
P T
313
12.32
74
2.91
57
2.24
45
1.77
A B
T P LCT
A B
T P LCT
A B
T P LCT
A B
T P LCT
This spool needs special body with extra machinering and must be used only with spool positioner type 13 (see page 19).
SD18
14 DAT006E
0
10
20
30
40
50
0 40 80 120 160
Spool pressure drop A®B
Pressure drop
Flow (l/min)
(bar)
(psi)
600
400
200
F
J
Y
P
(on ports)
= 63bar/900psi
P
(on ports)
= 100bar/1450psi
P
(on ports)
= 250bar/3600psi
Q = 160l/min
0
40
80
120
160
200
0 2 4 6 8 10
Flow
Stroke
Spool metering P®B
0.1 0.2
(mm)
(l/min )
(in)
0.3
Performance data
F
J
Y
Type 8F
Spool options
201
201
201
P--A--B--T closed, with flow through line (LC) open
A
"
P®A+B (regenerative)
P ® B A ® T
stroke =
stroke =
+ 10 mm
+ 0.39 in
-- 10 mm
-- 0.39 in
A B
P T
A B
P T
A B
P T
A B
T
P LC
T
A B
T
P LC
T
A B
T
P LC
T
This spool needs special body with extra machinering.
SD18
15DAT006E
--450
--300
--150
0
150
300
450
--10 --8 --6 --4 --2 0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3--0.1--0.2--0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
B
D
C
B
D
C
With spring return
”A” side spool positioners
Supplied with standard spring type D (see force--stroke diagram); available with lighter spring type B (8MB code: 5V08220000) or
type C (8MC code: 5V08120010).
In order to correctly apply these kits please contact Customer Service, there could be some usage limitation.
8 kit
19 kit
20 kit
01
20
61
2.40
Allen wrench 8
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
61
2.40
Allen wrench 8
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
61
2.40
Allen wrench 8
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
201
--450
--300
--150
0
150
300
450
0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
--450
--300
--150
0
150
300
450
--10 --8 --6 --4 --2 0
(in)
100
50
(lbf)
--0.1--0.2--0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
SD18
16 DAT006E
--450
--300
--150
0
150
300
450
--10 --8 --6 --4 --2 0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3--0.1--0.2--0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
:
:
Locking--unlocking area
Unlocking force:400 N / 90 lbf ±10%:
From position 1 to0
From position0to1
From position2to0
From position 0 to2
--450
--300
--150
0
150
300
450
--10 --8 --6 --4 --2 0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3--0.1--0.2--0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
:
Locking--unlocking area
Unlocking force:400 N / 90 lbf ±10%:
From position 1 to0
From position0to1
From position2to0
From position 0 to2
--450
--300
--150
0
150
300
450
--10 --8 --6 --4 --2 0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3--0.1--0.2--0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
:
From position 1 to0
From position0to1
Locking--unlocking area
Unlocking force:400 N / 90 lbf ±10%:
From position2to0
From position 0 to2
With detent
“A” side spool positioners
9B kit
10B kit
11B kit
201
201
201
97
3.82
Special wrench
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
Special wrench
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
97
3.82
Special wrench
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
97
3.82
SD18
17DAT006E
--450
--300
--150
0
150
300
450
--10 --8 --6 --4 --2 0
(in)
100
50
(lbf)
--0.1--0.2--0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
:
:
From position 0 to2
From position2to0
Locking--unlocking area
Unlocking force: 420 N / 94.4 lbf ±10%:
--450
--300
--150
0
150
300
450
0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
:
:
Locking--unlocking area
Unlocking force: 420 N / 94.4 lbf ±10%:
From position 1 to0
From position0to1
--450
--300
--150
0
150
300
450
--10 --8 --6 --4 --2 0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3--0.1--0.2--0.3
--50
--100
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
: :
: :
Locking--unlocking area
Unlocking force: 420 N / 94.4 lbf ±10%:
From position 1 to0
From position0to1From position2to0
From position 0 to2
“A” side spool positioners
16 kit
11 kit
15 kit
201
20
01
61
2.40
Allen wrench 8
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
61
2.40
Allen wrench 8
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
61
2.40
Allen wrench 8
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
SD18
18 DAT006E
--800
--400
0
400
800
--16 --14 --12 --10 --8 --6 --4 --2 0 2 4 6 8 10
0.1 0.2
(in)
100
50
(lbf)
0.3
0
Stroke
Force
(mm)
(N)
Force--stroke diagram
:
F
--0.1--0.2--0.3--0.4--0.5--0.6 0
150
--50
--100
--150
Locking--unlocking area
Unlocking force:330 N / 74.2 lbf ±10%:
From position 1 to0
From position0to1From position2to0
From position 0 to2
Locking force:710 N / 160 lbf ±10%F
From position 3 to 2
From position 2 to3
For spool type 5
“A” side spool positioners
13 kit
201 3
Special wrench
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
97
3.82
SD18
19DAT006E
Pneumatic solenoid valve ordering code (with connector)
8EP3 kit
8P kit
“A” side spool positioners
Solenoid operating features
Nominal voltage : 12 VDC / 24 VDC. . . . . . . . . . . . . . . . .
Power rating : 8 W. . . . . . . . . . . . . . . . . . . .
Duty cycle : 100%. . . . . . . . . . . . . . . . . . . . . .
Operating features
Pilot pressure : 6 bar (max.10). . . . . . . . . . . . . . . . . . .
: 87 psi (max.145)
Operating features
Pilot pressure : 6 bar (max.10). . . . . . . . . . . . . . . . . . .
: 87 psi (max.145)
Scheme ISO 1219
Scheme
CODE DESCRIPTION
2X4001012 12VDC solenoid valve
2X4001024 24VDc solenoid valve
201
V1 V2
201
V1 V2
201
V1 V2
NPT 1/8”
NPT 1/8”
164.5
6.48
169
6.65
35
1.38
66
2.60
Wrench 17
42 Nm / 31 lbft
Wrench 9
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
154
6.06
82
3.23
179
7.05
51
2.01
155.5
6.12
84
3.31
Æ
PG9
6
0.24
Allen wrench 5
9.8 Nm / 7.2 lbft
Wrench 14
9.8 Nm / 7.2 lbft
Connector C01
code: 2X1001020
(include in control kit)
Special wrench
24 Nm / 17.7 lbft
Wrench 9
Wrench 13
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
SD18
20 DAT006E
Allen wrench 4
6.6 Nm / 4.9 lbft
Operating features
Pilot pressure : min.10 bar-- 145 psi. . . . . . . . . . . . . . . . . . .
: max.50 bar -- 725psi
Max.back pressure on outlet L : 4 bar -- 58 psi. . . . .
8EI3 kit
“A” side spool positioners
ON--OFF electro--hydraulic spool control kit with external pilot and drain.
Collector kit for external pilot and drain
Ordering codes (BSP thread)
TYPE CODE DESCRIPTION
KE1S0 5KE1S00030 kit for 1 section
KE2S0 5KE2S00630 kit for 2 sections
KE3S0 5KE3S00630 kit for 3 sections
KE4S0 5KE4S00630 kit for 4 sections
KE5S0 5KE5S00630 kit for 5 sections
KE6S0 5KE6S00630 kit for 6 sections
Scheme ISO 1219
Scheme
Valve and solenoids ordering codes
CODE DESCRIPTION
2S0EJ08002013 3 ways solenoid valve
2X4350012 12VDC coil
2X4350024 24VDC coil
Ex: SD18/2--P(KG3--120)/18EI3L/18EI3L/KE2S0--24VDC
201
201
V L
L
V
1
Solenoid operating features
Nominal voltage : 12 VDC / 24 VDC. . . . . . . . . . . . . . . . .
Power required : 21 W. . . . . . . . . . . . . . . . . .
Duty cycle : 100%. . . . . . . . . . . . . . . . . . . . . .
136
5.35
159
6.26
178
7.01
79
3.11
42
1.65
L
V
Connection ISO4400
(for connector see
page 22)
Solenoid valve
Wrench 24 -- 9.8 Nm / 7.2 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
Wrench 13
24 Nm / 17.7 lbft
Allen wrench 5
9.8 Nm / 7.2 lbft
Wrench 9
Wrench 17
24 Nm / 17.7 lbft
T
P
Collector
Allen wrench 6
24 Nm / 17.7 lbft
T
P
L
V
20 bar
290 psi
P
A1 B1 A2 B2
T
120
1750
V
Coil
SD18
21DAT006E
8EI3 kit
“A” side spool positioners
Wrench 41
42 Nm / 31 lbft
Collector kit with pilot and drain lines
Ordering codes (BSP thread)
TYPE CODE DESCRIPTION
KE1R3 5KE1R30630 kit for 1 section
KE2R3 5KE2R30630 kit for 2 sections
KE3R3 5KE3R30630 kit for 3 sections
KE4R3 5KE4R30630 kit for 4 sections
KE5R3 5KE5R30630 kit for 5 sections
KE6R3 5KE6R30630 kit for 6 sections
Pressure drop P®T
0
20
40
60
0 50 100 150 200
The kit consists of a collector with VRP pressure reducing valve and relative pipes.
VRP valve operating features
Outlet pressure : 20 bar / 290 psi. . . . . . . . . . . . . . . . . .
Max.flow : 8 l/min / 2.11 US gpm. . . . . . . . . . . . . . . . . . . . . . .
Filtering : 80 m. . . . . . . . . . . . . . . . . . . . . . . .
VRC valve : code XGIU541602
Valve assembled on flow through passage provides pilot
pressure to the actuator.
Ex: SD18/2--P(KG3--125)/18EI3L/18EI3L/VRC
--KE2R3--24VDC
Flow
Pressure drop
600
400
200
800
(l/min)
(psi)
(bar)
50
33
13.5
1
2
PG09
1.3
0.53
1.97
C02 connector code: 2X1001010
Operating features
Nominal voltage : 250 VAC / 300 VDC. . . . . . . . . . .
Weather protection :IP65. . . . . . . . .
Connector according to ISO4400
T
174
6.85
Collector
Wrench 20
24 Nm / 17.7 lbft
Allen wrench 6
24 Nm / 17.7 lbft
VRC back pressure valve
(not included in kit)
Inlet line
Drain
Wrench 17
Wrench 41
42 Nm / 31 lbft
Wrench 41
42 Nm / 31 lbft
P
T
P
A1 B1 A2 B2
T
120
1750
VRP
VRC
VRP code
2S100808VAL21
SD18
22 DAT006E
SLC cap
SLP dust proof plate
L lever box
”B” side options
201
Alluminium with protection boot lever pivot box; it can be rotated 180° (L180 configuration)
Mechanical control with dust proof plate.
Protection cap usable with pneumatic spool and electro--hydraulic control kit.
201
201
35
1.38
89
3.50
74.5
2.93
29
1.14
77
3.03
45
1.77
Vertical handlever
assembly
Horizontal
handlever assembly
Allen wrench 5
9.8 Nm / 7.2 lbft
L180 configuration
54
2.13
39.5
1.56
M12
100
3.94
Allen wrench 5
9.8 Nm / 7.2 lbft
Allen wrench 8
0.8 Nm / 0.03 lbft
14.5
0.57
32
1.26
13
0.51
25
0.98
12
0.47
22
0.87
12
0.47
Æ
Æ
Æ
Spool dimension
+0.0009
45
1.77
SD18
23DAT006E
0
10
20
30
40
--10 --8 --6 --4 --2 0 2 4 6 8 10
8IM kit (for single acting and double acting spools)
Hydraulic spool control
2 0 1
Port B Port A
Pressure--stroke diagram
Max. pilot pressure 50 bar / 725 psi
Metering area
Overlap area
201
VA VB
Pilot pressure
Stroke
0.1 0.2
100
200
300
(mm)
(bar)
(psi)
(in)
400
0
118.5
4.67
99
3.90
60
2.36
G 1/4
Allen wrench 5
9.8 Nm / 7.2 lbft
Allen wrench 6
24 Nm / 17.7 lbft
Wrench 21
24 Nm / 17.7 lbft
VA VB
Special spool: type 1C, 2C or 3C
Wrench 19
Special valve body kit
(standard body)
0.3--0.1--0.2--0.3
500
0
SD18
24 DAT006E
0
10
20
30
0 3 6 9
5.8
22.4
8.51
Pressure curve 070
Pilot pressure
Stroke
0.1 0.2
100
200
300
(mm)
(bar)
(psi)
(in)
400
0.3
0.04
0.33
84
325
Connection example
Hydraulic spool control
VA1 VB1 VA2 VB2
1 4 3 2T P
Ex: SD18/2--P(KG3--125)/1C8IM/1C8IM/AET+
SV01--S/01W--001Ax4
T
P
VA1 VA2
VB1 VB2
P
T
A1 A2
B1 B2
P
A1 B1 A2 B2
T
Hydraulic pilot control valve
series SV01
120
1750
SD18
25DAT006E
Example of mounting on directional valve
Port relief options
T
P
108.5
4.27
26.5
1.04
85
3.35
53
2.09
68.5
2.7
80
3.15
59
2.32
11.5
0.45
69.5
2.74
30
1.18
52
2.05
35
1.38
90
3.54
124
4.88
70
2.76
170
6.69
Complete kit with cast iron block and anti--shock valves
SD18 special body kit
P1 configuration P3 configuration
T
P
49
1.93
42
1.65
38
1.5
42
1.65
22.5
0.89
42
1.65
87.5
3.44
11
0.43
80
3.15
182
7.16
18.5
0.73
45
1.77
21
0.83
12
0.47
17
0.67
M6
Surface with
extra machining
90
3.54
Example of SD18 valve with extra machining
When port valves are flanged on the first or the last section of the body, top inlet and outlet are not available.
1.6
Wrench 4
12.7 Nm / 9.4 lbft
SD18
26 DAT006E
0
100
200
300
0 40 80 120 160
Flow
Pressure
3000
2000
1000
(l/min)
(psi)
(bar)
Spring # 3 (blue band)
4000
Circuit
Port relief options
Performance data
Adjustment type
G: with screw H: valve set and locked
0.2”
RESPONSE TIME
10%
100 bar
1450 psi
90%
95%
105%
Pressure
Time (”)
(% DP)
Response time
P 1 ( G 3 -- 120 )
Adjustment type (G, H).
Setting value in bar standard 100 -- 1450 psi).
Spring type (3).
P1
1 mounted on A port.
2 mounted on B port.
3 mounted on A and B ports.
P2 P3
A B A B A B
A B
A B
P1 configuration
Example of pressure on port A and port B to tank
P2 configuration
Example of pressure on port B and port A to tank
SD18
27DAT006E
AEK: closed centre
AE: with carry--over
AET: (standard)
Outlet port conversion
See page 6
Ex: SD18/2--P(KG3--120)/18L/18L/AE
Carry--over sleeve
Wrench 41 -- 42 Nm / 31 lbft
8.2
0.32
G3/4
Closed centre plug
Allen wrench 12 -- 42 Nm / 31 lbft
4.2
0.17
P
A1 B1 A2 B2
T
120
1750
Ex: SD18/2--P(KG3--120)/18L/18L/AEK
P
A1 B1 A2 B2
T
120
1750
C
T
T
C
SD18
28 DAT006E
SD18
29DAT006E
Fitting tightening torque -- Nm / lbft
THREADS TYPE P and C ports A and B ports T port
BSP (ISO 228/1) G 3/4 G 3/4 G 1
With O--Ring seal 90 / 66.4 90 / 66.4 100 / 73.7
With copper washer 90 / 66.4 90 / 66.4 90 / 66.4
With steel and rubber washer 70 / 51.6 70 / 51.6 100 / 73.7
UN--UNF (ISO 11926--1) 1 5/16--12 UN--2B (SAE 16) 1 1/16--12 UN--2B (SAE 12) 1 5/16--12 UN--2B (SAE 16)
With O--Ring seal 150 / 110.6 95 / 70.1 150 / 110.6
Installation and maintenance
A2
The SD18 valve is assembled and tested as per the technical specification of this catalogue.
Before the final installation on your equipment, follow the below recommendations:
-- the valve can be assembled in any position, in order to prevent body deformation and spool sticking mount the product on a flat
surface;
-- in order to prevent the possibility of water entering the lever box and spool control kit, do not use high pressure wash down
directly on the valve;
-- prior to painting, ensure plastic port plugs are tightly in place.
P
T
C
A1
B1
B2
Carry--over configuration
NOTE -- These torque are recommended. Assembly tightening torque depends on many factors, including lubrication, coating and
surface finish. The manufacturer shall be consulted.
SD18
30 DAT006E
Malfunction Cause Remedy
External leakage pivot box lever or
control kit side.
Worn spool seal due to mechanical
actuation or high back pressure.
Locate the leakage and replace the seal.
Check back pressure level.
Excessive internal leakage on A and B
ports.
Increase clearance between spools and
body due to high wear
Replace the directional control valve and
check the oil contamination level.
Dropping load during transition while
raising
High leakage on the load check valve.
Remove the load check valve and clean
the seat.
Inability to build pressure on A and B
p
o
r
t
s
.
Pressure relief valve blocked open. Remove and clean or replace the valve.
I
n
a
b
i
l
i
t
y
t
o
b
u
i
l
d
p
r
e
s
s
u
r
e
o
n
A
a
n
d
B
ports.
Low pump pressure and flow. Check the pump and circuit.
Installation and maintenance
Lever
pivot box
Spool
Positioner kit
Load check valve
Normally spools are interchange-
able. Verify the smoothness dur-
ing the assembly
Body
Main relief valve
Holding O--Ring
bushing
Chamfer
O--Ring seal 24.99x3.53
code: 4GUA125035
NOTE -- All articulated parts inside cap, lever box and mechanical joystick are lubricated with synthetic base grease grade NLGI2
SD18
31DAT006E
WALVOIL S.P.A.
42100 REGGIO EMILIA · ITALY · VIA ADIGE, 13/D
TEL. +39.0522.932411 · FAX +39.0522.300984
E--MAIL: INFO@WALVOIL.COM · HTTP: //WWW.WALVOIL.COM
SALES DEPARTMENT
TEL. +39.0522.932555 · FAX +39.0522.932455
D1409808I
DAT006E
