MONOBLOCK
COMPACT CATALOGUE
DIRECTIONAL CONTROL VALVES
Working conditions
Features
Simple, compact designed, this valves is only one section for open centre and closed centre hydraulic systems.
H Fittedwithamainpressurereliefvalve.
H Diameter 20 mm -- 0.79 in interchangeable spools.
H Available manual, pneumatic, electro--hydraulic and remote with flexible cable spool control kits.
Thiscatalogueshows technicalspecificationsand diagramsmeasuredwithmineraloilof46mm
2
/s -- 46cStviscosityat40°Ctemper-
ature.
WARNING!
All specifications of this catalogue refers to the standard product at this
date. 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.
7
th
edition October 2000:
This edition supercedes all prior documents.
Additional information
This catalogue shows the product in the most usual configurations.
Please contact Sales Dpt. for more detailled information or special request.
SD14
2 DAC005E
Nominal flow rating 120 l/min
Operating pressure (maximum) 250 bar 3600 psi
Back pressure (maximum) on outlet port T 25 bar 360 psi
Internal leakage A(B)→T
∆
p=100 bar -- 1450 psi
fluid and valve at 40
°
C -- 104
°
F
3cm
3
/min 0.18 in
3
/min
Fluid Mineral base oil
Fluid temperature with NBR (BUNA--N) 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 Sales Dept.
Dimensional data
WAL VOIL
P0000001
105111001
MADE IN ITALY
Valve code
Production batch :
P00 = production year (2000)
00001 = progressive number
125
4.92
11
0.43
∅
240
9.45
Position 1
Position 2
Position 0
16°
16°
80
3.15
35
1.38
27.5
1.08
72.5
2.85
21.5
0.85
5.5
0.22
24.5
0.96
38
1.5
35
1.38
27
1.06
104.5
4.11
59
2.32
13
0.51
48
1.89
90
3.54
118
4.65
36
1.42
M10
71
2.8
11
0.43
67.5
2.66
WALVOIL
P0000001
105111001
MADE IN ITALY
SD14
3DAC005E
Standard threads
PORT
BSP
(ISO 228/1)
UN--UNF
(ISO 11926--1)
Inlet P
A and B ports
G 3/4 1 1/16--12 UN--2B (SAE 12)
Outlet T
/
/
(
)
PILOT PORTS
Pneumatic NPTF 1/8--27 NPTF 1/8--27
Right inlet
Hydraulic circuit
Ex.: SD14/1(YG3--175)/1CP8L
Ex.: SD14/1(YG3--175)/ED--1CP8L
P
AB
T
175
2500
P
BA
T
175
2500
Standard v alve is supplied with positive overlap spool (1CP).
A simmetrical body allows the reverse assembly of spool and relative control kit and lever (ED configuration).
SD14
4 DAC005E
Work port to outlet
Inlet to work port
Open centre
Performance data (pressure drop vs. flow)
0
5
10
15
20
0 50 100 150
Flow
Pressure drop
180
90
(l/min)
(bar)
(psi)
From inlet to outlet.
From inlet to A port (spool in position 1)orB port (spool in position 2).
From A port (spool in position 2)orB port (spool in position 1) to outlet.
NOTE -- Measured with spool type 1CP.
270
0
5
10
15
20
0 50 100 150
Flow
Pressure drop
180
90
(l/min)
(bar)
(psi)
270
0
5
10
15
20
0 50 100 150
Flow
Pressure drop
180
90
(l/min)
(bar)
(psi)
270
A
B
PT
A
B
PT
A
B
PT
SD14
5DAC005E
SD14
6 DAC005E
3. Spool options
2. Inlet relief option s
1. Body kits *
Ordering codes
1.
SD14 / 1 (YG3--175) / 1CP 8 L *
TYPE CODE DESCRIPTION
1 5KC1603040 1 section
TYPE CODE DESCRIPTION
VMD10/1 direct pressure relief valve type Y
(YG2--125) 3XCAR110212 Range 80 to 160 bar / 1150 to 2300 psi
standard setting 125 bar / 1800 psi
(YG3--175) 3XCAR110213 Range 125 to 250 bar / 1800 to 3600 psi
standard setting 175 bar / 2500 psi
(YG4--220) 3XCAR110214 Range 200 to 315 bar / 2900 to 4600 psi
standard setting 220 bar / 3200 psi
VMP10/1 pilot operated pressure relief valve type X
(XG--125) X006211 120 Range 25 to 315 bar / 360 to 4600 psi
standard setting 125 bar / 1800 psi
Standard setting is referred to 10 l/min flow .
SV XTAP526340 Relief valve blanking plug
TYPE CODE CIRCUIT DESCRIPTION
1CP 3CU1510140 Double acting with positive overlap,
3 positions, A and B closed in neutral position
1N 3CU1510100 Double acting, 3 positions, A and B closed in
neutral position
2 3CU1525600 Double acting, 3 positions, with A and B open
to tank in neutral position
3CP 3CU1531140 Single acting on A, 3 positions, B plugged
requires G3/4 plug (see part I )
4CP 3CU1535140 Single acting on B, 3 positions, A plugged
requires G3/4 plug (see part I )
6 3CU1550100 Double acting, 3 positions, closed center
7 3CU1555100 Double acting, 3 positions, closed center with
A and B to tank in neutral position
2. 3. 4. 5.
1.
6.
4.
8
9B--10B--11B
11 -- 1 5 -- 1 6
8PF
8EI3
2.
K
Y
SV
X
Include boby, seals and rings.
NOTE (*) -- Items are referred to BSP thread.
Pressure relief valve setting in bar
I
Description example:
SD14
7DAC005E
II Optional handlevers
I Port plug *
6. Inlet and ou t let selection *
5. ”B” side handle options
4. ”A” side spool positioners
Ordering codes
3.
II
TYPE CODE DESCRIPTION
L 5LEV1 10000 Standard lever box
SLP 5COP110000 Without lever , with dust proof plate
TP 5TEL110005 CG cable connection
TQ 5TEL1101 10 CD cable connection
TYPE CODE DESCRIPTION
8 5V08110000 With spring return in neutral position
9B 5V09110000 With detent in position 1 and spring return in
neutral position
10B 5V09110000 With detent in position 2 and spring return in
neutral position
11 5V11 110000 With detent in position 1, neutral and 2
11B 5V11210000 With detent in position 1 and 2, spring return
in neutral position
15 5V15110000 With detent in position 1 and neutral
16 5V16110000 With detent in position 2 and neutral
8PF 5V08110705 Proportional pneumatic kit
8EI3 5V08110350 12 VDC ON/OFF electro--hydraulic kit
5V08110351 24 VDC ON/OFF electro--hydraulic kit
TYPE CODE DESCRIPTION
PSL 3XTAP732200 G3/4 plug for side inlet and outlet (nr.2 plugs
required). Standard configuration; “PSL”
must be omitted
PSA 3XTAP732200 G3/4 plug for upper inlet and outlet (nr.2 plug
required)
TYPE CODE DESCRIPTION
AL01/M10x200 170012020 Lenght L = 200mm / 7.87in
5.
L
SLP
TQ
TP
For special configurations see pages 9 and 10
TYPE CODE DESCRIPTION
G3/4 3XTAP732200 Plug for single acting spool
51
2.01
76
2.99
201
A
P
T
”A” side spool positioners
Spools options
201
AB
P
T
1CP
201
2
AB
P
T
4
A port plugged
3
B port plugged
201
B
P
T
201
AB
P
T
67
201
AB
P
T
201
V1 V2
201
201
201
201
8
9B
10B
11
8PF
Proportional pneumatic kit
201
VL
8EI3
ON/OFF electro --hydraulic kit
Connection ISO4400
Solenoid operating features
Nominal voltage : 12 VDC / 24 VDC
Power rating : 21 W..
Duty cycle : 100%....
Optional connector
code: 2X1001010
01
15
20
16
201
11B
169
6.65
167
6.57
V
L
123
4.84
46.5
1.83
V1 V2
NPT1/8--27
Operating features
Adjustment range : from 2 to 6.5 bar
(29to94psi)
diagram 501A
Max.pilot pressure: 10 bar (145 psi)
Feeder kit
(see catalogue SDS150
at page 13)
SD14
8 DAC005E
Directional valve with rotary control kit
Special configurations
Ex.: SD14/1(YG3--175)/ 1NRSLP
Optional handlever
code: 3XGIU422620
Angle excursion ± 90°
P
AB
T
175
2500
125
4.92
233.5 max
9.19
6.5
0.26
∅
187
7.36
24.2
0.95
∅
75
2.97
72.5
2.85
5.5
0.22
27
1.06
45
1.77
118
4.65
41
1.61
Dust proof plate kit: code 5COP110000
Rotary positionerl kit: code 5ROT1 10000
Spool: code 3CU1510561 (egative overlap)
Standard body
+7
+0.27
-- 7
--0.27
Stroke
SD14
9DAC005E
Spool in regenerative 4
th
position
Special configurations
Ex.: SD14/1(YG3--175)/ 8 13F1 L
125
4.92
53
2.09
72.5
2.85
3
0.12
5.5
0.22
27
1.06
104.5
4.11
268
10.55
79
3.11
118
4.65
36
1.42
264.5
10.41
15°
Position
1
Position 2
Position 0
Position 3
20°
P
AB
T
175
2500
13°
Positioner kit: code 5V13611000
Spool: code 3CU1562130
Special body kit:
code 5KC1603500
SD14
10 DAC005E
SD14
11DAC005E
Fitting tightening torque -- Nm / lbft
THREADS TYPE All ports
BSP (ISO 228/1) G3/4
With O--Ring seal 90 / 66.4
With copper washer 60 / 44.3
With steel and rubber washer 70 / 51.6
UN--UNF (ISO 11926-- 1) 11/16--12UN--2B(SAE12)
With O--Ring seal 95 / 70
Installation and maintenance
The SD14 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 leverbox and spool controlkit, do notuse highpressurewash downdirectly
on the valve;
-- prior to painting, ensure plastic port plugs are tightly in place.
A
T
B
P
NOTE -- These torque are recommended. Assembly tightening torque depends on many factors, including lubrication, coating and
surface finish. The manufacturer s hall be consulted.
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 • F AX +39.0522.932455
D1409808I
DAC005E
