SECTIONAL
COMPACT CATALOG
DIRECTIONAL CONTROL VALVES
SD16
2 DBC004A
Nominal flow rating 140 l/min 37 US gpm
Operating pressure (maximum) parallel or tandem circuit 315 bar 4600 psi
series circuit 210 bar 3050 psi
Back pressure (maximum) on outlet port T 25 bar 360 psi
Internal leakage A(B)®T
Dp=100 bar -- 1450 psi
fluid and valve at 40°C -- 104°F
3 cm
3
/min 0.18 in
3
/min
Fluid Mineral base oil
Fluid temperature range with NBR (BUNA--N) seals from --20° to 80°C from --4° to 176°F
with FPM (VITON) seals from --20° to 100°C from --4° to 212°F
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 NAS 1638 -- class10
Ambient temperature range from --40° to 60°C from --40° to 140°F
NOTE -- For different conditions please contact Customer Service.
Working conditions
Features
Simple, compact and heavy duty designed sectional valve from 1 to 12 sections for open and closed center hydraulic systems.
H Fitted with a main pressure relief valve and a load check valve on every working section
H Available with parallel, tandem or series circuit.
H Optional power beyond port.
H A wide variety of port and circuit valves.
H Available manual, pneumatic, hydraulic, electro--hydraulic, and remote with flexible cables spool control kits.
H Diameter 20 mm (0.79 in) interchangeable spools.
This catalog shows technical specifications and diagrams measured with mineral oil of 46mm
2
/s -- 46 cSt viscosity at 40°C -- 104°F
temperature.
3
nd
edition December 2000:
This edition supersedes all prior documents.
WARNING!
All specifications of this catalog refer 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.
Additional information
This catalog shows the product in the most standard configurations.
Please contact Customer Service Dpt. for more detailed information or
special request.
Dimensional data (parallel and tandem circuit)
WALVOIL
P0000001
115211001
MADE IN ITALY
Valve type
Production batch :
P00 = production year (2000)
00001 = progressive number
Position 1
Position 2
0
16°
16°
294
F
E
25
0.99
11.58
51
2.01
175
6.89
84
3.31
45.5
1.79
11
0.43
50
1.97
100
3.94
36
1.42
37.5
1.48
67.5
2.66
12
0.47
62
2.44
48
1.89
M10
12
0.47
37.5
1.48
112.5
4.43
115
4.53
190
7.48
M10
16
0.63
WALVOIL
P0000001
115211001
MADE IN ITALY
Optional top outlet (must be used in
power beyond configuration)
62
2.44
50
1.97
48
1.89
50
1.97
Power beyond
“C” optional
SD16
3DBC004A
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
SD16/1
176 6.63 124 4.88 13 28.7
SD16/7
464 18.27 412 16.22 48.7 107.7
SD16/2
224 8.82 172 6.77 19 41.9
SD16/8
512 20.16 460 18.11 54.6 121
SD16/3
272 10.71 220 8.66 24.9 54.9
SD16/9
560 22.05 508 20 60.5 134.3
SD16/4
320 12.60 268 10.55 30.9 68.1
SD16/10
608 23.94 556 21.89 66.4 147.6
SD16/5
368 14.49 316 12.44 36.8 81.1
SD16/11
656 25.83 604 23.78 72.3 160.9
SD16/6
416 16.38 364 14.33 42.8 94.4
SD16/12
704 27.72 652 25.67 78.2 174.2
Standard threads
PORTS
BSP
(ISO 228/1)
UN--UNF
(ISO 11926--1)
Inlet P 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 and power beyond C 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
Work port to outlet
Inlet to work port
Open center
Performance data (pressure drop vs. flow)
0
10
20
30
40
0 50 100 150
Flow
Pressure drop
10
540
360
180
20 30
(l/min)
(US gpm)
(bar)
(psi)
0
10
20
30
40
0 50 100 150
Flow
Pressure drop
10
540
360
180
20 30
(l/min)
(US gpm)
(bar)
(psi)
0
10
20
30
40
0 50 100 150
Flow
Pressure drop
10
540
360
180
20 30
(l/min)
(US gpm)
(bar)
(psi)
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
B1
P
T
A12
B12
A1
B1
P
T
A12
B12
A1
B1
P
T
A12
B12
1 section
4 sections
8 sections
12 sections
P®A
12
(B
12
)
P®A
1
(B
1
)
A
12
(B
12
)®T
A
1
(B
1
)®T
SD16
4 DBC004A
2 inlet cover and mid return manifold section
Hydraulic circuit
Intermediate pressure compensated flow divider section
2 parallel working sections
P
T
A1 B1 A2 B2
175
2500
Ex.: SD16/2/AC(YG3--175)/18L/DFG/18L/RC
P
T
A1 B1 A2 B2
175
2500
Ex.: SD16/2/AC(YG3--175)/18L/18L/RC
P
A1 B1
175
2500
T
P
175
2540
Ex.: SD16/2/AC(YG3--175)/18L/CS1/18L/BC(YG3--175)
B2 A2
SD16
5DBC004A
Working sections
Inlet cover
Hydraulic circuit
TYPE CODE DESCRIPTION
P--18L 615105001 Parallel
S--18L 615115001 Series
SP--18L 615125001 Tandem
TYPE CODE DESCRIPTION
AC(YG3) 615205005 Side inlet with direct pressure relief valve
AD(YG3) 615205001 Top inlet with direct pressure relief valve
AC(XG) 615205003 Side inlet with pilot operated pressure relief
valve
AC(SV) 615205006 Side inlet with relief valve blanking plug
P
AC(XG--175)
175
2500
P
AD(YG3--175)
175
2500
P
AC(SV)
P
175
2540
AC(YG3--175)
A BA B
P--18L SP--18L
A B
S--18L
SD16
6 DBC004A
Outlet cover
Intermediate sections
Hydraulic circuit
TYPE CODE DESCRIPTION
RC 615305003 Side outlet
RD 615305001 Top outlet
RE 615305002 Top outlet with power beyond
RK 615305005 Top outlet with closed center
TYPE CODE DESCRIPTION
CS1 615405010 Mid return manifold section
DFG 615411020 Pressure compensated flow divider section
EI1(YG3) 615425010 Secondary direct operated pressure relief
valve
EI2(YG3) 615425000 Mid inlet with secondary direct operated
pressure relief valve
T
DFGCS1
RC
T
C
TT
T
RD RE RK
EI1(YG3--175)
P
EI2(YG3--175)
NOTE -- Codes are referred to UN- UNF thread.
175
2500
175
2500
SD16
7DBC004A
Assembling parts
PART CODE DESCRIPTION
1. 5TIR110170 Tie rod kit for 1 section valve
5TIR110218 Tie rod kit for 2 sections valve
5TIR110266 Tie rod kit for 3 sections valve
5TIR110316 Tie rod kit for 4 sections valve
5TIR110368 Tie rod kit for 5 sections valve
5TIR110410 Tie rod kit for 6 sections valve
5TIR110458 Tie rod kit for 7 sections valve
5TIR110506 Tie rod kit for 8 sections valve
5TIR110554 Tie rod kit for 9 sections valve
5TIR110602 Tie rod kit for 10 sections valve
5TIR110650 Tie rod kit for 11 sections valve
5TIR110698 Tie rod kit for 12 sections valve
Tie rod tightening torque 40 Nm (29.6 lbft)
2. 5STA125220 Brakets kit
2.
1.
M10 nut -- wrench 17
SD16
8 DBC004A
4. Inlet valves options
3. Inlet relief options
2. Inlet port selection *
1. Inlet cover body *
Inlet cover options
3.
X
4.
Y
SV
1.
L
EL
F
SV
2.
FE SD16 / A C (YG3 -- 175) EL--12VDC -- SAE *
TYPE CODE DESCRIPTION
VMP20/1 pilot operated pressure relief valve type X
(XG--120) X007211120 Range 25 to 315 bar / 360 to 4600 psi
standard setting 120 bar / 1750 psi
VMD20/1 direct pressure relief valve type Y (standard)
(YG2--120) 3XCAR120212Range 80 to 160 bar / 1160 to 2300 psi
standard setting 120 bar / 1750 psi
(YG3--175) 3XCAR120213Range 125 to 250 bar / 1800 to 3600 psi
standard setting 175 bar / 2500 psi
Standard setting is referred to 10 l/min -- 2.6 US gpm flow.
SV 3XTAP535410 Relief valve blanking plug
CODE DESCRIPTION
3FIA116700 AC--AD type body
TYPE CODE DESCRIPTION
F 5KIT420200 Inlet anti--cavitation valve
L 3XCAR420700 Hydraulic pilot unloader valve (FC1.5)
EL YCAR420305 12 VDC electromagnetic controlled
unloader valve
YCAR420310 24 VDC electromagnetic controlled
unloader valve
SV 3XTAP535410 Relief valve blanking plug
NOTE (*) -- Items are referred to UN- UNF thread.
1.
2.
3. 4.
CODE DESCRIPTION
3XTAP838200 SAE16 plug (n.1 plug required)
Pressure relief valve setting in bar
Description example:
SD16
9DBC004A
SD16
10 DBC004A
3. “A” side spool positioners
2. Spool options
1. Working section kits *
Working section options
1 mounted on A port.
2 mounted on B port.
3 mounted on A and B ports.
EL SD16 / P -- 1 8 L . P 1 (G3 -- 100) -- SAE *
TYPE CODE DESCRIPTION
P 5EL1167000 Parallel
S 5EL2167000 Series
SP 5EL3167000 Tandem
TYPE CODE CIRCUIT DESCRIPTION
1 3CU2510100 Double acting, 3 positions, with A and B
closed in neutral position
1CS 3CU2510200 Double acting, 3 positions, with A and B
closed in neutral position, metering type
1A 3CU2521100 Double acting, 3 positions, with Aopentotank
in neutral position
1B 3CU2522100 Double acting, 3 positions, with Bopentotank
in neutral position
2 3CU2525100 Double acting, 3 positions, with A and B open
to tank in neutral position
3 3CU2531100 Single acting on A, 3 positions, B plugged;
requires SAE 12 plug (see part I)
4 3CU2535100 Single acting on B, 3 positions, A plugged;
requires SAE 12 plug (see part I)
3.
Include boby, seals, rings and load check valve.
1.
88
9B--10B--11B
11--15--16
8PC
8EI3
1. 2. 3. 4. 5.
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 5V11110000 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
8PC 5V08111709 Proportional pneumatic kit
8EI3 5V08110350 12 VDC ON/OFF electro--hydraulic kit
5V08110351 24 VDC ON/OFF electro--hydraulic kit
NOTE (*) -- Items are referred to UN- UNF thread.
I
Port relief valve setting in bar
Description example:
SD16
11DBC004A
II Optional handlevers
I Port plug *
5. Port relief options
4. “B” side options
Working section options
5.
TYPE CODE DESCRIPTION
L 5LEV110000 Standard lever
SLP 5COP110000 Without lever, with dust proof plate
TQ 5TEL110110 CD cable connection
TP 5TEL110005 CG cable connection
LCB 5CLO216100 Mechanical joystick
4.
2.
L
SLP
TQ
LCB
TYPE CODE DESCRIPTION
SAE12 3XTAP832200 Plug for single acting spool
TP
II
TYPE CODE DESCRIPTION
AL01/M10x200 170012020 For L lever box L= 200 mm / 7.87 in
AL08/M12x250 170013125 For LCB joystick L= 250 mm / 9.84 in
P
U
C
P3T
II
TYPE CODE DESCRIPTION
Anti--shock valve
P(G2--63) XCAR216115 Range 63 to 125 bar / from 900 to 1800 psi
standard setting 63 bar / 900 psi
P(G3--100) XCAR216116 Range 100 to 250 bar / from 1450 to 3600 psi
standard setting 100 bar / 1450 psi
P(G4--200) XCAR216117 Range 200 to 315 bar / from 2900 to 4600 psi
standard setting 200 bar / 290 psi
Anti--shock and anti--cavitation valve
U(G2--63) XCAR316112 Range 63 to 125 bar / from 900 to 1800 psi
standard setting 63 bar / 900 psi
U(G3--100) XCAR316113 Range 100 to 250 bar / from 1450 to 3600 psi
standard setting 100 bar / 1450 psi
U(G4--200) XCAR316114 Range 200 to 315 bar / from 2900 to 4600 psi
standard setting 200 bar / 2900 psi
Standard setting is referred to 10 l/min -- 2.6 US gpm flow.
C 3XCAR416100 Anti--cavitation
P3T 3XTAP528360 A and B ports valve blanking plugs
For special configurations see pages 13 and 14
111.5
4.39
64.5
2.54
V1 V2
NPT1/2--27
76
2.99
51
2.01
“A” side spool positioners
Spools options
201
A B
P
T
4
“A” port plugged
201
B
P
T
1A1 1B
201
2
A B
P
T
3
201
A
P
T
“B” port plugged
201
V1 V2
201
201
201
201
8
9B
10B
11
8PC
Proportional pneumatic kit
201
V L
8EI3
ON/OFF electro--hydraulic kit
Connection ISO4400
Operating features
Nominal voltage : 12 VDC / 24 VDC
Power rating : 21 W. .
Duty cycle : 100%. . . .
Pilot pressure : from 10 to 50 bar.
from 145 to 725 psi
Optional connector
code: 2X1001010
01
15
20
16
201
11B
169
6.65
167
6.57
V
L
201
A B
P
T
201
A B
P
T
Operating features
Adjustment range : from 1 to 5.5 bar
from 14.5 to 79.8 psi
diagram 501A
Max.pilot pressure: 10 bar / 145 psi
Feeder kit
(see page 13)
SD16
12 DBC004A
Hydraulic spool control
Special configurations
Electro--hydraulic feeder kit
SAE 6
A B
VA VB
307
12.09
66
2.60
66
2.60
3.
2.
1.
201
A B
P T
VA VB
Operating features
Adjustment range : from 5.8 to 19 bar / 84 to 276 psi -- diagram 024
Max.pilot pressure : 100 bar / 1450 psi
1IM8IM
Ex.: EL SD16/P--1IM 8IM
NOTE -- Codes are referred to UN-UNF thread.
Spool
code 3CU2510420
Spool control kit
code 5IDR216700
Working section kit
code 5EL116700C (standard body)
PART TYPE CODE DESCRIPTION
1. KE1R3 5KE1R31570 kit for 1 section
KE2R3 5KE2R31570 kit for 2 sections
KE3R3 5KE3R31570 kit for 3 sections
KE4R3 5KE4R31570 kit for 4 sections
KE5R3 5KE5R31570 kit for 5 sections
KE6R3 5KE6R31570 kit for 6 sections
2. VRE 3XGIU641700 SAE 16 back--pressure valve
(power beyond configuration)
3. RE 4TAP318010 M18x1.5 plug
53
2.09
SD16
13DBC004A
Fixed double acting kick--out spool control
Regenerative circuit
Special configuration
4
th
position floating circuit
8P8CR
Spool in regenerative
201
A B
P
T
Ex.: EL SD16/P--8P 8CR...
201 3
A B
P
T
Ex.: EL SD16/P--5 13...
A
513
4th position
spool in floating
Operating features
Kick--out pressure range : from 20 to 125 bar. . .
: from 290 to 1800 psi
Kick--out standard pressure : 100 bar / 1450 psi.
201
A B
P
T
111A
91
3.58
51
2.01
A
85
3.35
A
Spool
code 3CU2541100
Spool control kit
code 5V13116000
Working section kit
code 5EL1167200 (special body)
Spool
code 3CU2561210
Spool control kit
code 5V08110020
Working section kit
code 5EL1167000 (standard body)
Ex.: EL SD16/P--1 11A(100)...
Spool
code 3CU2510321
Spool control kit
code 5V11510100
Working section kit
code 5EL116700A (standard body)
SD16
14 DBC004A
2. Tie rod kits for SDS150
3. Intermediate sections *
1. Tie rod kits for SD16
CS3
Intermediate sections
P1
T
3.
1.
2.
293.5
11.56
264.2
10.40
12
0.47
38
1.50
48
1.89
58
2.28
45
1.77
13
0.51
38
1.50
30
1.18
202
7.95
88.5
3.48
100
3.94
5
0.20
45
1.77
78.5
3.09
90
3.54
263.5
10.37
SAE16
Mid return manifold.
To assemble different sizes of valve. Tie rods are special. Available combination SD16 / SDS150.
P1
T
A1 B1 A2 B2
175
2500
Description example: SD16/1/AC(YG3--175)/18L/CS3/18L/BC(XG--125)/SDS150/1
P2
125
1800
CODE DESCRIPTION
5TIR4161 Kit for 1 section
5TIR4162 Kit for 2 sections
5TIR4163 Kit for 3 sections
5TIR4164 Kit for 4 sections
CODE DESCRIPTION
5TIR41501 Kit for 1 section
5TIR41502 Kit for 2 sections
5TIR41503 Kit for 3 sections
5TIR41504 Kit for 4 sections
CODE DESCRIPTION
615445010 Mid return manifold section
SD16 inlet cover and
working section
SDS150 inlet cover and
working section
NOTE (*) -- Code are referred to UN- UNF thread.
SD16
15DBC004A
Circuit optionOutlet section parts
Outlet cover options
FS SD16 / RC -- SAE *
PART CODE QTY DESCRIPTION
1. 3FIA216700 1 Outlet section body *
2. 3XTAP838200 1 SAE 16 plug *
4. 4GUA118726 5 18.72x2.62 NBR 70 SH
O--Ring seal
5. 4GUA134626 1 34.60x2.62 NBR 70 SH
O--Ring seal
NOTE (*) -- Items are referred to UN- UNF thread.
PART CODE QTY DESCRIPTION
3. 4TAP318010 1 M18x1.5 plug for
power beyond (RE) and
closed center (RK) configuration
1.
2.
RE--RK option
3.
4.
5.
Description example:
SD16
16 DBC004A
SD16
17DBC004A
Fitting tightening torque -- Nm / lbft
THREAD TYPE P port A and B ports T and C ports
BSP (ISO 228/1) G 3/4 G 3/4 G 1
With O--Ring seal 70 / 51.6 70 / 51.6 100 / 73.7
With copper washer 70 / 51.6 70 / 51.6 90 / 66.3
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 / 70 150 / 110.6
Installation and maintenance
The SD16 valve is assembled and tested as per the technical specification of this catalog.
Before the final installation on your equipment, follow the below recommendations:
-- the valve can be assembled in any position, in order to prevent working sections deformation and spools sticking mount the
product on a flat surface;
-- inordertopreventthepossibilityofwaterenteringtheleverbox andspoolcontrolkit, donotusehigh pressurewashdowndirectly
on the valve;
-- prior to painting, ensure plastic port plugs are tightly in place.
Power beyond configuration
P
C
A1
A2
B2
B1
T
NOTE -- These torque are recommended. Assembly tightening torque depends on many factors, including lubrication, coating and
surface finish. The manufacturer shall be consulted.
SD16
18 DBC004A
Notes
The SD16 valve can be supplied with one coat of opaque black paint (CVN configuration).
Example of specification: SD16/2/AC(YG3--175)/18L/18L/RC--<CVN>
NOTE -- For different color consult Customer Service.
SD16
19DBC004A
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
DBC004A
