DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
Page 2 - General features
Page 3 - Technical data - Working conditions
Page 4 - Operating principle
Page 5 - Hydraulic fluids - Installation - Filtration - Pipes
Page 6 - Performance data - Metering curves - Valve working limit
Page 7 - Performance data - Pressure drop "P" to "T" - Pressure drop "P" to "A/B" and "A/B" to "T"
Page 8 - Dimensions from 1 to 8 working modules
Page 9 - Ports
Page 10 - Inlet module (hydraulic circuits)
Page 11 - Inlet module (dimensions)
Page 12 - Inlet module with priority flow valve adjustable by power steering load
Page 24 - Main relief valves
Page 25 - Venting valves (available as auxiliary valve too)
Pages 26 - 27 - 28 - Auxiliary valves
Page 29 -Spool controls and spool positionings
Page 30 - Spool controls - SL- NL - NP - MP
Page 31 - Spool controls - SS - FL
Page 32 - Spool controls - L1/L2 - Standard shafts
Page 33 - Cable remote controls - D1 - TC
Page 34 - Hydraulic controls - IP - IF
Page 35 - Pneumatic and electro-pneumatic controls - PP/P0 - P1/P2 - PQ
Page 36 - 37 - Electro-hydraulic controls - H1/H2
Page 38 - Spool positionings - C2 -C3 - C4 - C5 - C6 - C7 - C8
Page 39 - Spool positionings - R2 - R4 - R5 - R6 - R7 - R9 - C0
Page 1 - GENERAL INDEX
Page 44 - 45 - How to order - VD8A
Page 47 - WARRANTY
E0.06.0911.02.02
The data in this catalogue refers to the standard product.
The policy of Salami S.p.A. consist
s of a continuous improvement of its products.It reserves the right to change the
specifications of the different products whenever necessary and without giving prior information.
If any doubts, please get in touch with our sales departement.
Page 33 - Direct electric push-pull control and emergency devices - E1/E2 - SL - ES
Page 40 - Spool positionings - F1 - F2 - F3 - F4 - F5 - F6 - F7 - F8
Page 41 - Spool positionings - D7 - D8 - D9 - M1 - M2 - M3
Page 42 - Spool positionings - CE - CM - CW - CD
Page 43 - Spool positionings - PM - G2 - G4 - G5
Page 46 - Identification label
Page 13 - Inlet module with priority flow valve (fixed priority flow)
Page 15 - Single and double working module (parallel circuit)
Page 16 - Working module with adjustable or fixed priority flow valve pressure compensated
Page 17 - Single and double working module (series circuit)
Page 18 - Working module (tandem circuit)
Page 19 - Mid inlet module (hydraulic circuits)
Page 21 - Assembling tie-rods
Page 20 - Outlet module (hydraulic circuits)
Page 22 - 23 - Circuit and spool types
E0.06.0911.02.02For more information: WWW.SALAMI.IT
1
INDEX
VD8A
2
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
GENERAL FEATURES
Among all hydraulic directional control valves used in the field of mobile equipment applications, the spool valve is
the most popular
.
The sectional valve type allows construction flexibility.Salami VD8A directional control valve is modular construction
and consist of an inlet section, up to 8 working modules and an outlet section.All these elements are secured in one
block by means of tie-rods.(For more than 8 working modules please contact our sales dept.)
FEATURES
VD8A directional control valve has the following:
• cast-iron body (inlet section, working section, outlet section)
• parallel circuit, load check valve protection on each section
• series circuit, load check valve protection on each section (possibility of 2
nd
load check valve on series line)
• tandem circuit, load check valve protection on each section
• several types of mid modules
• possibility of venting valve
• possibility of power beyond configuration
• spool construction in steel, hardened and chromium-plated to obtain a higher surface hardness and a better corrosion resistance
• several types of spool: double, single acting, spool motor, float position etc.
• minimum tolerance between the spools and the body to obtain a minimum internal leakage
• interchangeabilty of all the spools
• possibility of auxiliary valve either on port A or B or on both
• several spool control devices and spool positioning devices
VALVE AND DEVICE TYPES
In order to meet the most stringent demands and to of
fer a wider range of applications, the following types of valves
and devices are available:
Valves
• direct main relief valve: controls the maximum pressure in the circuit when one or more spools are on end stroke
located on "A" or "B" port side, can be:
direct type version up to 260 bar - 3700 psi
pilot operated with anticavitation version up to 350 bar - 5000 psi
• electric and external piloted venting valve: located in the opposite cavity of the main relief valve and is available as 12 or 24
Vdc and normally open or normally closed versions (available also as venting valve for the ports A and B)
• overload and anticavitation valve on port A or/and B: set at a higher value (in comparison with the main relief valve), it protects
the working ports from load induced pressures , avoids cavitation in the system created by the inertia.
• anti-cavitation check valve on port A or/and B: avoids cavitation in the system created by the inertia.
• flow restrictor: directly fitted on the "A/B" ports orifice
Devices
• handle controls
• handle safety devices: avoids accident
al operation of the spool
• cross lever: allows to acting two spools with one manual joystick
• cable remote control
• control device for microswitches: for the operation with electric d.c. motor driven pumps at one or more rotation speeds
• hydraulic kick-out: returns the spool automatically to the neutral position when the preset pressure of port "A" or "B" is exceeded
• anti-tilt device: the spool returns automatically in neutral position when the pressure reaches a pre-set value to avoid cranes
from becoming unstable
• pneumatic proportional control
• electropneumatic control
• hydraulic proportional control
• direct electric on-off control with emergency manual device
• electrohydraulic on-off and proportional control
• several spool positionings device to return the spool to neutral position or to lock the spool on working position
E0.06.0911.02.02 For more information: WWW.SALAMI.IT
VD8A
3
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.IT
TECHNICAL DATA
WORKING CONDITIONS
Nominal flow meaning: flow causing 1 bar (14.5 psi) pressure drop each section, with spools in neutral position
Hydraulic fluid mineral oil according to DIN 51524
V
iscosity
viscosity range 10...400 mm
2
/sec ( 0.15...7.13 sq.in./sec )
optimal viscosity 12...75 mm
2
/sec ( 0.19...1.16 sq.in./sec )
Temperature
fluid range temperature -20...85 °C (
-4...185 °F ) NBR seals
suggested range 30...60 °C ( 86...140 °F ) NBR seals
Maximum contamination level NAS 1683: class 9 ISO 4406: 19/16
Room temperature -30...60 °C ( -22...140 °F )
W
orking limits see diagrams at page 6
Pressure drop see diagrams at page 7
For operation with fire resistant fluid, please contact our sales department
Spools from 1 to 8 (for more working modules pls. contact our sales department)
Nominal flow Q 75 l/min (
20 gpm US )
Max flow* 90 l/min ( 24 gpm US )
Max pressure port P 350 bar ( 5100 psi )
ports A/B 350 bar ( 5100 psi )
port T* 25 bar ( 363 psi )
Internal leakage
at 160 bar ( 2285 psi ) ports A/B T 25 ÷ 35 cm
3
/min ( 1.52 ÷ 2.13 cu.in./min )
For lower leakage please contact our sales dept.
In case of solenoid control the leakage is 120 ÷ 160 cm
3
/min ( 7.32 ÷ 9.76 cu.in./min )
Spool stroke (positions 1 and 2) ± 7 mm ( 0,28 in. )
Spool stroke (position 4, float or regenerative) ± 7 + 5 mm ( 0.28 + 0.19 in. )
For solenoid control - spool stroke ± 5 mm ( 0,19 in. )
*In case you need the max flow please contact our sales dept.
*For higher back pressure please contact our sales dept.
All technical data carried out using mineral oil with viscosity of 16 cSt and contamination level 19/16 as ISO 4406.
E0.06.0911.02.02
VD8A
4
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.IT
There are two characteristic phases in the spool stroke (7 mm - 0,275 in.):
a) the overlap phase (about 18% of the stroke) guarantees minimum internal leakages in neutral position;
b) the progressive flow regulation phase (82% of the stroke).
Both pictures show a 6/3 valve type with double acting spool only as principle of functioning.
Salami VD8A
is available in different solutions.
OPERATING PRINCIPLE
Salami directional control valves belong to the 6/3 (or 6/4) type; they can control 6 gallery in 3 (or 4) spool positions
simult
aneously.
They are open circuit types: when the spool is in neutral position, the fluid flows directly to the tank with minimum
internal pressure drops (approximatively 1 bar / 14.5 psi for each spool at nominal flow).
When the spool is moved from this position, the neutral gallery is gradually throttled and the connection between
pump and actuator, through the corresponding port, is made.
When a pressure exceeds the value of the pressure existing in port A or B, the fluid flows through the load check
valve to the actuator.
The picture show the P working module
with the p
aths N - P - A - B - T.
P
N
T
N
B
A
2
0
1
EXAMPLE OF
6/3 V
ALVE TYPE
P
N
T
N
B
A
2
0
1
3
EXAMPLE OF
6/4 V
ALVE TYPE
IMPORTANT
Looking at this side of the
spool, we usually say:
spool in when the spool is
pushed into the valve and
spool out when it is pulled
out of the valve.
Independing on
assembling of the spool
on "A" or "B" side
2 0 1 positions
7 7
2 0 1 positions
7 7
2 0 1 positions
7 7
spool stroke
spool stroke
spool stroke
A TPNN
N
PBT
A TPNN
N
PBT
A TPNN
N
PBT
spool out
neutral
spool in
P
A
TNT
P
B TT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
5
When proceeding to mount the unit on the structure and to connect fittings to work ports, it is necessary to comply
with the values of tightening torques.
The att
achment of linkages to spools should not affect their operation. The mounting position can be vertical with
inlet module on the top or horizontal.
INSTALLATION
The contamination of the fluid in the system greatly affects the life of the unit. Above all, contamination may result in
irregular operation, wear of seals in valve housings and failure
s. Once the initial contamination level of the system
has been reached, it is necessary to limit any increase of contamination installing an efficient filtration system (see
working conditions page 3).
FILTRATION
PIPES
Pipes should be as short as possible, without restrictions or sharp bends (especially the return lines).
Before connecting pipes to the fittings of the corresponding com ponents, make sure that they are free from burrs and
other contamination.
As a first approximation, for a mobile machine with standard length pipes, their width should guarantee the following
values of fluid speed
*
:
6 ÷ 10 m/sec inlet pipe 19,7 ÷ 32,8 ft/sec inlet pipe
3 ÷ 5 m/sec outlet pipe 9,9 ÷ 16,4 ft/sec outlet pipe
the lowest values of fluid speed are required in case of wide temperature range and/or for continuous duty.
*
[v =
21,2 x Q
d
2
Usually a mineral-base oil with a good viscosity index should be used, preferably with good lubricating properties
and corrosion, oxidation and foaming resist
ant.
Sometimes the fluids supplied by the manufacturers do not satisfy purity requirements (see page 3 WORKING
CONDITIONS). It is therefore necessary to filter the fluid carefully before filling. Your supplier can give you the
information about NAS class of its fluids. To maintain the proper purity class, the use of filters of high dirt capacity
with clogging indicator is recommended.
Under humidity conditions it is necessary to use hygroscopic salts.
For operation with fire resistant and ecological fluids, please contact our technical department.
HYDRAULIC FLUIDS
v = fluid speed [m/sec],Q = flow [l/min],
d = pipe internal diameter [mm]
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E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
6
For more information: WWW.SALAMI.IT
The characteristics in this catalogue are typical measured results.
During measuring a mineral based hydraulic oil with a viscosity
of 16 cSt at a temperature of 50°C was used.
FOR FURTHER DETAILS PLEASE CONTACT OUR SALES DEPARTEMENT
Spool stroke
0
20
40
60
80
0 1 2 3 4 5 6 7
(mm)
(l/min)
10
30
50
70
0
5.5
10.5
15.5
20.5
2.5
8.0
13
18
(gpm)
0 .04 .08 .12 .16 .20 .24 .28
(in.)
Metering curves
A/B T
210 bar (3000 PSI)
35 bar (500 PSI)
210 bar (30 00 PSI)
35 bar (500 PSI)
Flow
P A/B
9023.7
PERFORMANCE DATA
0
350
0 15 30 45 60 75 90
(l/min)
(bar)
245
0
5080
3550
(PSI)
0 4 8 12 16 20 24
(gpm)
Valve working limit
"P" port pressure
Flow
The data of this diagram have been obtained with a force of:
stroke beginning 120 N - stroke end 180 N and st
andard leakage data.
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
7
For more information: WWW.SALAMI.IT
Pressure
(l/min)
P A8/B8
A1/B1 T
P A1/B1
A8/B8 T
Flow
0
12
0 15 30 45 60 75 90
(bar)
10
0
180
150
(PSI)
0 4 8 12 16 20 24
(gpm)
8120
690
460
230
14203
16232
Pressure drop "P" to "A/B1" and to "A/B8"
Pressure drop "A/B1" and "A/B8" to "T"
PERFORMANCE DATA
The characteristics in this catalogue are typical measured results.
During measuring a mineral based hydraulic oil with a viscosity
of 16 cSt at a temperature of 50°C was used.
FOR FURTHER DETAILS PLEASE CONTACT OUR SALES DEPARTEMENT
Pressure drop "P" to "T"
0
12
0 15 30 45 60 75 90
(l/min)
10
0
180
150
0 4 8 12 16 20 24
(gpm)
Pressure
Flow
8120
690
460
230
2
4
5
number of spools
P T
3
1
6
7
8
(bar)
(PSI)
14200
B1
A1
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
B8
A8
T
P
B1
A1
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
B8
A8
T
P
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
8
Mass
kg
lb
11
24.2
14.5
31.9
18
39.6
21.5
47.3
25
55
28.5
62.7
32
70.4
35.5
78.1
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INDEX:
P
= top inlet port
PL = side inlet port
T = top outlet port
TL = side outlet port
T1 = top outlet port*
TL1 = side outlet port*
A/B = work ports
VS = main relief valve(adjustable)
VA = overload valve
VU = load check valve
*Only in case of inlet and outlet first module
the end module is closed
DIMENSIONS FROM 1 TO 8 WORKING MODULES
For different size and thread ports, please contact our sales departement
PORT SIZES P - PL - P3 T - TL A - B
BSP ISO 228
SAE ISO 176
G 1/2
SAE#10
7/8 - 14 UNF
G 3/4 G 1/2
SAE#12
1-1/16 - 12 UNF
SAE#10
7/8 - 14 UNF
ISO 262 - ISO 6149
M 22 x 1.5 M 22 x 1.5M 27 x 2
BSPF
JIS B 2351
G 1/2 G 3/4 G 1/2
On request you can have all the ports BSP ISO 228 - G 3/4
in this case auxiliary valves are not available.
On request are available working modules with
dist
ance between axis of 38 mm - 1.49 inch.
Please get in touch with our sales dept.
Spools
I
L
1 2 3 4 5 6 7 8
mm
in
mm
in
115
4.53
143.5
5.65
155
6.10
183.5
7.22
195
7.68
223.5
8.80
235
9.25
263.5
10.37
275
10.83
303.5
1
1.95
315
12.40
343.5
13.52
355
19.97
383.5
15.10
395
15.55
423.5
16.67
TL
97
3.82
X
P = 136 + X + Y
P = 5.35 + X + Y Y
39
1.54
38
1.5
14
0.55
14
0.55
75.05
2.95
21.95
0.86
52.65
2.07
PL
TL1
39
1.54
97
3.82
56
2.2
52
2.05
21.95
0.86
41
1.61
47
1.85
52.65
2.07
51.65
2.03
52
2.05
27
1.06
21
0.83
117
4.61
136
5.35
In case of main relief
valve on B side and of
venting valve, this hole
is M8 threaded too.
See p
age 11.
FIXING HOLES THREADS:
POR
TS THREADED BSP (ISO 228) - M8x1.25 ISO 262
PORTS THREADED METRIC (ISO 262) - M8x1.25 ISO 262
PORTS THREADED SAE UN-UNF (ISO 725) - 5/16 18 UNC
PORTS THREADED BSPF O-RING BOSS (JIS B 2351) - M8x1.25 ISO 262
The drawing shown is just an example.The overall dimensions you read are valid for all the VD8A except the parametric dimensions "L" and "I"
depending of the number of working sections.The p
arametric dimension "P" depends on a fixed dimension of 136 mm (11 in.) to wich you have
to had the "X" and "Y" dimensions that you can find in the spool controls and spool positionings pages.
P
T
VS
VA VU
T1
8.5
0.33
58.5
2.3
58.5
2.3
Ø 9
Ø 0.35
32
1.26
117
4.61
Ø 9
Ø 0.35
8.5
0.33
L
8.5
0.33
117
4.61
8.5
0.33
40
1.57
27
1.06
25
0.98
42
1.65
Ø 9
Ø 0.35
M8
8.5
0.33
I
13
0.51
41.5
1.63
40
1.57
40
1.57
40
1.57
41.5
1.63
19
0.75
28.5
1.12
8.5
0.33
8.5
0.33
B4
A4
B3
A3
B2
A2
B1
A1
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
9
For more information: WWW.SALAMI.IT
B
E
D
A
C
r 0,25
B
90°
A
Following are standard ports. For different port types, please contact our sales department.
PORTS
B
E
D
A
C
r 0,25
SAE UN-UNF (ISO 725)
Dimensions 7/8 -14 UNF 1”1/16 -12 UN 1”5/16 -12 UN
mm In. SAE10 SAE12 SAE16
A 17 0,67 20 0,79 20 0,79
B 34 1,34 41 1,61 49 1,92
C 23,9 0,94 29,2 1,15 35,5 1,40
D 2,5 0,10 3,3 0,13 3,3 0,13
E 15° 15° 15°
BSP (ISO 228)
Dimensions
G1/2 G3/4 G1
mm In.
A 16 0,63 18 0,71 20 0,79
B 27 1,06 33 1,30 40 1,57
B
E
D
A
C
r 0,25
METRIC (ISO 262 - ISO 6149)*
Dimensions M22 x 1.5 M27 x 2
mm In. ISO 262 ISO 6149 ISO 262 ISO 6149
A 16 0.63 16 0,63 18 0,71 19 1,75
B 31,5 1.24 34 1,34 37,7 1,48 40 1,57
C 23,8 0,94 29,4 1,16
D 2,4 0.09 3,1 0,12
*Available for quantity, please contact our sales dept.
BSPF O-RING BOSS (JIS B 2351)
Dimensions
G 1/2 G 3/4 G 1
mm In.
A 16 0,63 17 0,67 21 0,83
B 34 1,34 45 1,77 51 2.01
C 22.6 0,89 29,8 1,17 35,8 1,41
D 2,5 0,10 3,5 0,14 3,5 0,14
E 15° 15° 15°
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
10
For more information: WWW.SALAMI.IT
INLET MODULE (HYDRAULIC CIRCUITS)
COMMERCIAL CODES
P
T
Top inlet port - P
Top outlet port - T
Side outlet port - TL
Side inlet port - PL
P
T
Top gauge
port - G
Side gauge
port - GL
Gauge ports are available with
the following threads:
BSP
(ISO 228) - G 1/4
SAE UN-UNF (ISO725) - SAE 4
01 02 03 07 08
Top inlet port Side inlet port
top inlet port
plugged
Top and side
inlet port
s
Top inlet and
outlet port
s
N
P
P
T
Side inlet and
outlet port
s top
ports plugged
N
P
P
T
P
L
TL
21
Top inlet port
with side
gauge port
22
Side inlet port
with top
gauge port
27
Top inlet and
outlet port
s with
side gauge port
G
L
N
P
P
T
28
Side inlet and
outlet port
s with
top gauge port
P
L
N
P
G
TL
23
Top inlet port
with top
gauge port
N
P
P
T
PL
N
P
P
T
PL
N
P
P
T
N
P
P
G
T
P
L
N
P
G
T
G
L
N
P
P
T
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E0.06.0911.02.02
VD8A
11
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.IT
INLET MODULE (DIMENSIONS)
IN ALL THESE COMMERCIAL CODES PORT SIZE ARE SHOWN ON PAGE 8
PLEASE LOOK
AT THE DIFFERENCES BETWEEN FIXING HOLES
Inlet module: commercial code 23
is built always with this dimensions drw
.
Moreover in case of venting valve or
in case you need to put the main relief
valve on "B" side this is the drawing.
Top gauge
port - G
Inlet module:commercial codes
07 - 08 - 21 - 22 - 27 - 28
are built always with this dimensions drw
.
T P
45
[1.77 ]
52
[2.05 ]
41
[1.61 ]
Ø 9
[0.35 ]
88
[3.46 ]
97
[3.82 ]
M8
T P
52
[2.05 ]
41
[1.61 ]
88
[3.46 ]
97
[3.82 ]
M8M8
50
[1.9 ]
134
[5.28
]
25
[0.98 ]
67
[2.64 ]
21.5
[0.85 ]
8.5
[0.33 ]
40
[1.57 ]
8.5
[0.33 ]
P
T
50
[1.9 ]
134
[5.28
]
25
[0.98 ]
67
[2.64 ]
21.5
[0.85 ]
8.5
[0.33 ]
40
[1.57 ]
8.5
[0.33 ]
P
T
P
P
E0.06.0911.02.02
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
VD8A
12
INLET MODULE WITH PRIORITY FLOW VALVE
ADJUSTABLE BY POWER STEERING LOAD
0
2
4
6
8
10
12
14
16
18
20
22
24
26
2
ACTION
3 4 5 6 7 8 10 12 15
flow [l/min]
pressure [bar]
6-24 l/min
6-18 l/min
6-13 l/min
3-11 l/min
0
2
4
6
8
10
12
14
16
18
20
22
24
26
RETURN
15 12 10 8 7 6 5 4 3 2
flow [l/min]
6-24 l/min
6-18 l/min
6-13 l/min
3-11 l/min
pressure [bar]
PORT SIZES P T
BSP ISO 228
SAE ISO 176
G 1/2
SAE#10
7/8 - 14 UNF
G 3/4
TPF
G 3/8
SAE#6
9/16-18 UNF
BSP ISO 228 G 3/4 G 3/4 G 3/8
SAE#10
7/8 - 14 UNF
Priority flow port is available with
the following threads:
BSP
(ISO 228) - G 1/4 or G 3/8
SAE UN-UNF (ISO 725) - SAE 4 or SAE 6
The built-in priority flow valve in this inlet
module, supplies the oil to the power
steering.This priority valve(PF port in dwg.)
supplies always a stand by flow to the steering
also when the unit is still.When the steering is
operated the flow through the valve can
increase or decrease according to the load
induced by steering and setting range.
4 setting ranges are available:
from 3 to 11 l/min - from 0.79 to 2.9 US gpm
from 6 to 13 l/min - from 1.58 to 3.43 US gpm
from 6 to 18 l/min - from 1.58 to 4.75 US gpm
from 6 to 24 l/min - from 1.58 to 6.34 US gpm
Calibrated orifice - CO
Load sensing valve
- LSV
Calibrated orifice - CO
Load sensing valve
- LSV
Top inlet port - P
Top outlet port - T (41)
or
T
op priority flow
outlet port - TPF (42)
Inlet flow
gauge port - M
Priority flow
gauge port - PFGP
Priority flow port - PF
Priority flow
relief valve - PFR
V
Main relief
valve - MR
V
The back seal kit is the same of previous page
136
5.35
M8
117
4.61
97
3.82
M8
48.7
1.92
43
1.69
36
1.42
33
1.3
30.5
1.2
22.5
0.89
41 42
Top inlet and outlet ports
priority flow outlet port
Top inlet port and
priority flow outlet port
N
P
P
T
T
M
CO
PF
PFGP
PFRV
LSV
MRV
N
P
P
TPF
T
M
CO
PF
PFGP
PFRV
LSV
MRV
For more information: WWW.SALAMI.ITFor more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
13
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
INLET MODULE WITH PRIORITY FLOW VALVE (FIXED PRIORITY FLOW)
PORT SIZES P T
BSP ISO 228
SAE ISO 176
G 1/2
SAE#10
7/8 - 14 UNF
G 3/4
TPF
G 3/8
SAE#6
9/16-18 UNF
BSP ISO 228 G 3/4 G 3/4 G 3/8
SAE#10
7/8 - 14 UNF
Priority flow port is available with
the following threads:
BSP
(ISO 228) - G 1/4 or G 3/8
SAE UN-UNF (ISO 725) - SAE 4 or SAE 6
In this valve the pump flow goes trough a calibrated orifice, that allows to keep a priority constant flow value(PF).The exceeding
pump flow goes to
P line.
Priority flow values available are the following:
8 l/min - 2.11 gpm US
11 l/min - 2.90 gpm US
12.5 l/min - 3.30 gpm US
Top inlet port - P
Top outlet port - T (41)
or
T
op priority flow
outlet port - TPF (42)
Inlet flow
gauge port - M
Priority flow
gauge port - PFGP
Priority flow port - PF
Priority flow
relief valve - PFR
V
Main relief
valve - MR
V
The back seal kit is the same of previous page
Calibrated orifice - COCalibrated orifice - CO
136
5.35
M8
117
4.61
97
3.82
M8
48.7
1.92
43
1.69
36
1.42
33
1.3
30.5
1.2
22.5
0.89
44 45
Top inlet and outlet ports
priority flow outlet port
Top inlet port and
priority flow outlet port
N
P
P
T
T
M
CO
PF
PFGP
PFRV
MRV
N
P
P
T
T
M
CO
PF
PFGP
PFRV
MRV
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
VD8A
14
For more information: WWW.SALAMI.ITFor more information: WWW.SALAMI.IT
INLET MODULES
Pos. 0
PORT SIZES
BSP ISO 228
SAE ISO 176
PS
G 3/8
SAE#6
9/16-18 UNF
METRIC ISO 262 G 3/8
P port size see page 8
Inlet module to realize parallel circuit between
two dif
ferent directional control valves.It must
be located on the upstream valve.
Important:
in 52 code
P and PS ports
are reversed
M8M8
97
3.82
9.5
0.37
117
4.61
9.5
0.37
10
0.39
34
1.34
The back seal kit is the same of previous page
Pressure port - P
Feeding port from power beyond - P3
0
1
110°
Pos. 1
The back seal kit is the same of previous page
Top inlet port - P
Manual pressure switch - PS
51
Top inlet port with
manual pressure
switch on "A" side
and main relief
valve on "B" side
(see drw
. besides)
N
P
P
P
S
T
52
Top inlet port with
manual pressure
switch on "B" side
and main relief
valve on "A" side
(same hydraulic circuit)
43
B1
1
2
A1
T
B2 A2
P3
0
1
2
0
N
P
N
P
P
55
2.16
72.4
2.85
P
PS
52
[2.05 ]
41
[1.61 ]
88
[3.46 ]
97
[3.82 ]
M8M8
54
2.12
50
[1.97 ]
134
[5.28
]
25
[0.98 ]
67
[2.64 ]
21.5
[0.85 ]
8.5
[0.33 ]
40
[1.57 ]
8.5
[0.33 ]
E0.06.0911.02.02
VD8A
15
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
SINGLE AND DOUBLE WORKING MODULE (PARALLEL CIRCUIT)
B
A
Working port - B
Working port - A
Pre-arrangement for aux. valve
B
A
Working port - B
Working port - A
Pre-arrangement
for aux. valve
In phase of order you must specify single or double working module
p
arallel circuit.
A
B
80
3.14
33
1.3
33
1.3
INLET Side
A
B
OUTLET Side
A
B
40
1.57
33
1.3
33
1.3
20
0.79
68
2.68
INLET Side
OUTLET Side
AB
136
5.35
22
0.87
36
1.42
94
3.7
PRB PRA
BA
P
Parallel circuit
pre-arranged for aux. valve
1
0
2
P
N
T
B
A
1
0
2
P
N
T
B
A
Parallel circuit
without auxiliary valve
P
Parallel circuit
pre-arranged for aux. valve
Parallel circuit
without auxiliary valve
1
0
2
P
N
T
B
A
1
0
2
B
A
1
0
2
P
N
T
B
A
1
0
2
B
A
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
16
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.ITFor more information: WWW.SALAMI.IT
WORKING MODULE WITH ADJUSTABLE OR FIXED PRIORITY FLOW VALVE
PRESSURE COMPENSA
TED
Working port - A
Working port - B
Pre-arrangement for aux. valve
B
A
The back seal kit is the same of previous page
Line of the valve support feet
(on the inlet/outlet)
Available values of fixed flow
4.5
l/min
1.9
US gpm
6
1.6
9
2.4
10
2.6
16
4.2
B
1
2
A
EXCESS
P - PRIORITY
T
N
P P
LCV
B
1
2
A
EXCESS
P - PRIORITY
T
N
P P
LCV
Available with or without load check valve - LCV
Adjustable flow with LCV : 45 l/min - 12 US gpm
Adjustable flow without LCV : 60 l/min - 16 US gpm
AB
136
5.35
22
0.87
36
1.42
94
3.7
43.5
1.71
40.5
1.59
AB
R
Fixed priority flow
pre-arranged for aux. valve
Fixed priority flow
without aux. valve
AB
R
Adjustable priority flow
pre-arranged for aux. valve
Adjustable priority flow
without aux. valve
A
B
40
1.57
33
1.3
33
1.3
20
0.79
INLET Side
OUTLET Side
1
2
107 - 4.21
Important: the handle flow regulation is always available on "A" side
B
1
2
A
EXCESS
P - PRIORITY
T
N
P P
LCV
B
1
2
A
EXCESS
P - PRIORITY
T
N
P P
LCV
E0.06.0911.02.02
VD8A
17
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
SINGLE AND DOUBLE WORKING MODULE (SERIES CIRCUIT)
B
A
Working port - B
Working port - A
Pre-arrangement
for aux. valve
Working port - B
Working port - A
Pre-arrangement for aux. valve
B
A
A
B
40
1.57
33
1.3
33
1.3
20
0.79
68
2.68
INLET Side
OUTLET Side
Load check valve
on series line
The series circuit working module is
available with or without secondary
load check valve on series gallery
.
With spools commercial codes:
02 - 03 - 04 - 11 - 12
secondary load check valve on the
series line, is always necessary
AB
52
2.05
22
0.87
136
5.35
110
4.33
13
0.51
Line of the valve support feet
(on the inlet/outlet)
In phase of order you must specify single or double working module
series circuit.
A
vailable only for quantity, please contact our sales dept.
S
Series circuit
pre-arranged for aux. valve
Series circuit
without auxiliary valve
A
B
80
3.14
33
1.3
33
1.3
INLET Side
A
B
OUTLET Side
S
Series circuit
pre-arranged for aux. valve
Series circuit
without auxiliary valve
A
B
1
0
2
P
N
T
B
A
1
0
2
P
N
T
B
A
1
0
2
P
N
T
B
A
1
0
2
B
A
1
0
2
P
N
T
B
A
1
0
2
B
A
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
18
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
WORKING MODULE (TANDEM CIRCUIT)
B
A
Working port - B
Working port - A
Pre-arrangement for aux. valve
A
B
40
1.57
33
1.3
33
1.3
20
0.79
68
2.68
INLET Side
OUTLET Side
AB
136
5.35
22
0.87
36
1.42
94
3.7
T
Tandem circuit
pre-arranged for aux. valve
Tandem circuit
without auxiliary valve
PRB PRA
BA
1
0
2
P
N
T
B
A
1
0
2
P
N
T
B
A
For more information: WWW.SALAMI.ITFor more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
19
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.IT
MID INLET MODULE (HYDRAULIC CIRCUITS)
Gauge port is available with
the following threads:
BSP
(ISO 228) - G 1/4
SAE UN-UNF (ISO725) - SAE 4
Inlet port - P1
Gauge port - G
Main relief valve
I1
Mid inlet for second pump
with combining flows and
main relief valve
I2
Mid inlet for second pump
with combining flows
without main relief valve
I3
Mid inlet for second pump
with split flows and
main relief valve
I4I9
Mid outlet
P
N
T
P
N
T
P
N
T
P
1
P
N
T
P
N
T
P
1
P
N
T
G
Mid inlet for second pump
with split flows and
main relief valve +
gauge port
134
5.27
94
3.7
51.5
2.03
P1
40
1.57
15
0.59
25
0.98
20
0.79
67
2.64
G
INLET Side
OUTLET Side
P
N
T
P
1
P
N
T
P
N
T
P
1
P
N
T
E0.06.0911.02.02
VD8A
20
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.ITFor more information: WWW.SALAMI.IT
OUTLET MODULE (HYDRAULIC CIRCUITS)
Top outlet port - T
Sleeve for power beyond
T
21.5
0.85
35
1.38
134
5.28
67
2.64
43
1.69
Side outlet port - TL
U5 U7 U8
U0
Side port
top port
plugged
Top port
side port
plugged
T
TL
T
TL
Power beyond
configuration
(side P3)
Outlet type necessary
for electro-hydraulic
controls, please go to
p
age 36 to see the
drawing and
hydraulic scheme.
Without
port
U1
Top port
T
U2
Top and
side ports
T
TL
U3 U4
P3
T
Closed
center circuit
configuration
N
T
97
3.82
38
1.5
67
2.64
Ø 9 (2x)
Ø 0.35 (2x)
E0.06.0911.02.02
VD8A
21
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.IT
ASSEMBLING TIE RODS
9.6
[0.38 ]
44.5
[1.75 ]
40
[1.57 ]
26.5
[1.04 ]
L
Inlet
Section
Outlet
Section
40
[1.57 ]
40
[1.57 ]
Section
Tightening torque : 25-30 Nm
Washer 8,4x14 UNI 6592-R80 Nut M8 UNI 5587-8.8
Tie rod M8 - Steel class 10.9
N° of sections
Length L
mm. [inch]
1
2
3
4
5
6
7
8
137 [5.39]
177 [6.97]
217 [8.54]
257 [10.12]
297 [11.69]
337 [13.27]
377 [14.84]
417 [16.42]
A
B
T
A
B
Side seal kit
Tie-rods
Example of assembling of 2 working modules + inlet and outlet modules
with tie-rods and side seal kit
s
E0.06.0911.02.02
VD8A
22
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
For more information: WWW.SALAMI.IT
CIRCUIT AND SPOOL TYPES
01
03
05
02
04
06
The circuits available are:
p
arallel type, series type, tandem type as shown in the picture above (tandem type with priority flow valve is available
too, see page 16). You can have main relief valve or venting valve in the inlet(see page 14), the working sections
can have pre-arrangement for auxiliary valves or not (you can mount venting valve too).
The spools can be 3 or 4 positions (as sown here below) moreover VD8A is available for power beyond just adding
a sleeve (see page 20).
As you can read at page 44, the spools can be types "A" nominal flow or "C" 2/3 of nominal flow.
Double acting spool Double acting
motor spool
Double acting
motor spool
("B" port blocked)
Double acting
motor spool
("A" port blocked)
Single acting spool
"A" working port
Single acting spool
"B" working port
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
1
0
2
B1
1
2
A1
T
PL
B2 A2 B3 A3
TL
0
1
2
0
1
2
0
N
P
B4 A4
1
2
3
0
P
SERIES TANDEM PARALLEL PARALLEL
E0.06.0911.02.02
VD8A
23
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
11 12
13
17 18
52 53
54
Double acting spool with
regenerative function
in 3rd position
(spool in)
Double acting spool with
float function
in 3rd position (spool in)
Over center
double acting spool
"A" working port
Over center
double acting spool
"B" working port
1
0
2
3
3
1
0
2
Double acting spool with
float function
in 3rd position (spool out)
1
0
2
3
1
0
2
1
0
2
1
0
2
Double acting spool with
regenerative function
in position 1 (spool out)
1
0
2
Double acting spool with
regenerative function
in position 2 (spool in)
1
0
2
Over center
double acting spool
"A
and B" working ports
With this type of spool
a special machining of
the body is required
With this type of spool
a special machining of
the body is required
With this type of spool
a special machining of
the body is required
M7
Ø 11
Ø 9
Ø 9
10
22
1
90°
Salami standard spools have the ends as shown in this drawing.
These ends spool are necessary to join it the controls and the positionings.
With direct electric and hydraulic controls the ends spool are different as
you can see at pages 33 and 34.
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
24
For more information: WWW.SALAMI.IT
MAIN RELIEF VALVES
D
P
W
The main relief valve can be mounted on "A" or "B" side, in case of venting valve this
is at the opposite side of the main relief.All the testing values of this page have been
obtained with nominal flow of 50 L/min - 13.21 gpm, viscosity 16cST and oil temperature
50°C - 122°F.
MAIN RELIEF VALVE DIRECT OPERATED
(setting range from 25 to 250 bar -
362 to 3625 psi)
MAIN RELIEF VALVE PILOT OPERATED
(setting range from 25 to 280 bar -
362 to 4061 psi) first spring
(setting range from 100 to 400 bar - 1450 to 5800 psi) second spring
51
Sealing plug
P
T
T
Wrench 14
Wrench 17
Wrench 25
Wrench 27
Seal
PLUG FOR MAIN RELIEF SEAT
WITHOUT VALVE
Allen wrench 10
T
P
T
P
T
P
Max tightening torque:
wrench 13 - 24 Nm
wrench 17 - 27 Nm
wrench 25 - 35 Nm
wrench 27 - 40 Nm
wrench 30 - 75 Nm
Allen wrench 8 - 27 Nm
50 600
200
150
100
50
40302010
250
300
70 80
Q ( L/min )
p ( bar )
OVERLOAD
13.21 15.850 10.567.925.282.64 18.49 21.13
Q ( US gal/min )
0
2900
2175
1450
725
3626
4351
p (
psi
)
50 600
1
40302010 70 80
Q ( L/min )
p ( bar )
2
3
4
5
6
ANTI-CAVITATION
13.21 15.850 10.567.925.282.64 18.49 21.13
Q ( US gal/min )
14.5
29
43.5
58
72.5
87
p ( psi )
50
6040302010 70 80
130
185
250
5
110/1595
165/2393
230/3335
35
90
145
210
P
( bar )
Q
(L / min)
P
( bar )
1.32
Q
(US gal/min)
13.21 15.8510.567.925.282.64 18.49 21.13
1885
2683
3626
P
( psi )
507
1305
2103
3045
P
( psi )
Both valves D and P are adjustable without oil leaking.
Further more, both have a security device to avoid valve sticking
40
P
T
Allen wrench 4
Wrench 25
Wrench 13
Wrench 27
T
P portG gauge port
T
T
EV.. D
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
25
VENTING VALVES (AVAILABLE AS AUXILIARY VALVE TOO)
EV1
EV2
EV3
EV4
EV5
EV6
EHV
A 115
A 115
This valve is located in the same cavity of the main relief valve,
but or at the opposite side or without main relief.All the commercial
codes in this p
age can be mounted as auxiliary valve too.
For all the test conditions, please refer you to page 24.
12 Vdc - Normally opened
Push override
24 Vdc - Normally opened
Push override
12 Vdc - Normally closed
Without override
24 Vdc - Normally closed
Without override
12 Vdc - Normally opened
Push and twist override
24 Vdc - Normally opened
Push and twist override
Push override
Push and twist override
P
T
P
EV
Normally opened
P
T
P
EV
Normally closed
SPECIFICATIONS
- MAX PRESSURE IN "P"
350 bar
- MAX FLOW 75 l/min
- OIL LEAKAGE-max pressure-46cST 1 cm
3
/min
- AVAILABLE VOLTAGE 12 - 24 Vcc
- COIL RESISTANCE 12Vdc:8.7 - 24Vdc:33
- COIL POWER 17 W
- PROTECTION INDEX WITH STANDARD CONNECTOR IP 65
CONNECTOR
DIN 43650 - A/ISO 4400
1.06
27
18±0.1
External piloted
venting valve
Normally opened
P
T
P
EHV
External
control
A
P
T
T
Wrench 30
Wrench 24
A
P
T
T
Wrench 27
0
0
1
2
3
4
5
6
7
8
9
10
10 20 30 40 50 60 70 80 90 100
Q ( L/min )
13.21 15.850 10.567.925.282.64 18.49 21.13
Q ( US gal/min )
23.77 26.41
p ( bar )
14.5
29
43.5
58
72.5
87
p ( psi )
101
116
130.5
145
A
available threads
M10 x 1 SAE 6
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
26
For more information: WWW.SALAMI.IT
AUXILIARY VALVES
VA
VR
AR
This picture shows
the position of the
auxiliary valves
For the tightening
torque please
see p
age 24.
P
B A
1
2
0
N
T
OVERLOAD AND ANTI-CAVITATION VALVE
(setting range from 25 to 280 bar -
362 to 4061 psi) first spring
(setting range from 100 to 400 bar - 1450 to 5800 psi) second spring
51
Sealing plug
50 600
200
150
100
50
40302010
250
300
70 80
Q ( L/min )
p ( bar )
OVERLOAD
13.21 15.850 10.567.925.282.64 18.49 21.13
Q ( US gal/min )
0
2900
2175
1450
725
3626
4351
p (
psi
)
Q ( US gal/min )
50 600
1
40302010 70 80
Q ( L/min )
p ( bar )
2
3
4
5
6
ANTI-CAVITATION
13.21 15.850 10.567.925.282.64 18.49 21.13
14.5
29
43.5
58
72.5
87
p ( psi )
Both valves AR and VR are adjustable without oil leaking.
Further more, both have a security device to avoid valve sticking
40
P
T
Allen wrench 4
Wrench 25
Wrench 13
Wrench 27
T
OVERLOAD VALVE
(setting range from 25 to 250 bar -
362 to 3625 psi)
P
T
T
Wrench 14
Wrench 17
Wrench 25
Wrench 27
Seal
T
A/B
50
6040302010 70 80
130
185
250
5
110/1595
165/2393
230/3335
35
90
145
210
P
( bar )
Q
(L / min)
P
( bar )
1.32
Q
(L / min)
13.21 15.8510.567.925.282.64 18.49 21.13
1885
2683
3626
P
( psi )
507
1305
2103
3045
P
( psi )
ANTI-CAVITATION VALVE
Wrench 27
T PORT
0 10 20 30 40 50 60 70 80
1
2
3
4
5
6
p (bar)
Q (L/min)
13.21 15.850 10.567.925.282.64 18.49 21.13
Q ( US gal/min )
14.5
29
43.5
58
72.5
87
p ( psi )
T
A/B
T
A/B
AB TTVA PR
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
27
For more information: WWW.SALAMI.IT
AUXILIARY VALVES
PR
PLUG FOR CAVITY
EHV
EV..
CV
CONVERSION VALVE
B
A
Electric venting valve
Electric venting valve
The conversion valve CV allows to obtain
single acting function st
arting from double
acting spool just connecting the port to
tank.For example starting from a double
acting spool to obtain a single acting "A"
port function, we must open the CV valve
sending "B" port to tank line.
CLOSEDOPENED
As you can read at page 25, all venting
valve are also available as auxiliary venting
valve, the commercial codes and technical
dat
a are the same of page 25.
Allen wrench 10
T
A/B
1
0
2
P
N
T
B
A
EV EV
1
0
2
P
N
T
B
A
EHV
External
control
EHV
External
control
Wrench 27
T PORT
Wrench 27
T PORT
1
0
2
P
N
T
B
A
CVCV
1
0
2
P
N
T
B
A
CVCV
AB TTEHV EV..
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
28
For more information: WWW.SALAMI.IT
OTHER VALVES
SP
ST
Flow restrictor P A/B
Flow restrictor A/B T
P
B A
1
2
0
N
T
VU
This is the load check valve VU which is built in every
working module between ports and you need not to
specify in phase of ordering because it is part of the
module.
In the series circuit working module you can have another
load check valve on the series line as you can see in the
drawing of page 17.
P
B A
1
2
0
N
T
VU
SP SP
P
B A
1
2
0
N
T
VU
ST ST
X
available threads
SAE 10 G 1/2*M22 x 1.5
f Y
available measures
f 2 f 2.5 f 2.75 f 3 f 3.25 f 4.5
*Available for quantity, please contact our sales dept.
Ø Y
X
X
18
26.5
Ø Y
X
X
18
26.5
18
X
X
Ø Y
26.5
18
X
X
Ø Y
26.5
For tightening torque, please refer you to page 5.
AB
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
29
SPOOL CONTROLS AND SPOOL POSITIONINGS
OPERATOR'S REFERENCE POINT
For more information: WWW.SALAMI.IT
VD8A - 4 working modules
with electro-pneumatic control
P1/P2
VD8A - 4 working modules
(2 bi-blocks) with hydraulic prop.
control
IP
This picture shows the VD8A assembled, in this case you
have a manual control "NP" on
A side and a spring return
in neutral position "C2" on B side.In this case the manual
control "NP" is used directly to have the spool movement,
in other case, for example with electro-hydraulic control,
there is only a safety lever. Considering that VD8A is a
simmetrical valve, all spool controls and positionings can
be placed on both sides A or B.In case of hydraulic kick-
out "G2 - G4 - G5" and with spools types 13 - 17 - 18, you
can also decide A or B side but after that this is the final
position because with this type of control and spools the
working module have a special machining.
In this and following pages you can find all spool controls
and spool positionings, they are all assembled with socket
hexagon head screw or in some case hexagon head screw:
M5 x 0.8 with tightening torque of 4.5 ± 0.5 Nm.
The drw. here below show the reference to fix A and B
side from the point of view of the operator.
NPA
C2B
P side
T side
VD8A - 2 working modules
with electro-hydraulic controls
H1/H2 - H3/H4
VD8A - 4 working modules (2 bi-blocks)
with miscellaneous of controls
NP
- E7/E8 - C2 and EV on inlet m.
B1
B2
B3
B4
B5
A1
A2
A3
A4
A5
P
T
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
30
For more information: WWW.SALAMI.IT
SPOOL CONTROLS
NL
Low effort
protected lever
Male version
Female version
available for spools from 01 to 06
for the other spools please get in touch
with our sales dept.
NP
Standard
protected lever
MP
Protected clamp lever
This lever can be assembled turned of 180°
In case of auxiliary valve it must be assembled
turned of 180° with reference to this axis
This lever can be assembled turned of 180°
SL
Without lever box
This lever can be assembled turned of 180°
In case of auxiliary valve it must be assembled
turned of 180° with reference to this axis
Ø 9
Ø 0.354
9
0.354
28
1.102
24.6
( 1.0 )
12.7
( 0.5 )
4.75
( 0.19 )
4.75
( 0.19 )
5.5
(
0.2
)
11.2
( 0.4 )
Allen wrench 4
1
2
0
1
2
0
1
2
0
14°
M8
M8
28
[1.1 ]
87
[3.43]
Allen wrench 4
20°
20°
Pos. 2
Pos. 1
Pos. 0
1
2
0
Allen wrench 4
M 8
28
[1.1]
57
[2.24 ]
57
[2.24]
M 8
19°
19
°
Pos. 1 Pos. 2
Ø 8
28
[1.1]
57
[2.24]
Ø 8
Allen wrench 4
Screw M7 to grip the shaft
19°
19
°
Pos. 2Pos. 1
If you order SL we will supply the
male version, which is the
st
andard.For the female version
please specify it when ordering.
A
A
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
31
This lever can be assembled turned of 180°
In case of auxiliary valve it must be assembled
turned of 180° with reference to this axis
SS
Lever with security locking in neutral pos.
Side shif
t to unlock
FL
Lever with security locking in neutral pos.
Pull the grip to unlock.
This lever can be assembled turned of 180°
In case of auxiliary valve it must be assembled
turned of 180° with reference to this axis
1
2
0
28
1.1
15°
15°
3°
f
9
f
0.35
59.75
2.35
61.15
2.41
Allen wrench 4
Pos. 2
Pos. 1
This lever with security locking in neutral pos.
has been created to avoid it
s accidental
movement caused by vibrations of the
application.
Necessary side shift to release
the security locking
This lever with security locking in neutral has been
created to avoid it
s accidental movement
caused by vibrations of the application.
Before to put the lever in positions 1 and 2
you must release it by pulling it as per the arrows
1
2
0
65.5
2.58
28
1.10
287.5
11.32
19°
19
°
Pos. 1
Pos. 2
8°
Allen wrench 4
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
32
L= 210 mm - 8.27 in
M10
L2 L1
Cross lever for 2 spools
fulcrum on down-stream spool
Cross lever for 2 spools
fulcrum on up-stream spool
STANDARD SHAFTS
A4A3A2A1
16
M8
180 mm - 7.08 in
M10
28
[1.1 ]
96
[3.78 ]
28
[1.1 ]
96
[3.78 ]
M10
1
2
0
1
2
0
1
2
0
1
2
0
f 8
165 mm - 6.49 in
f 0.31
Shaft with ergonomic knob
for cross lever L1/L2
R202 8996 0
Shaft with threaded end
R202 9018 0
Shaft for clamp lever
R202 8839 0
For different diameter and/or length, please get in touch with our sales dept.
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
B3
A4B4
A3
A3,A4
B4,B3
A3,B4
B3,A4
B2
B1A1
A2
A2,B1
A1,B2
A1,A2
B2,B1
L2 - WITH FULCRUM DOWN
L1 - WITH FULCRUM DOWN
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
33
D1 TC
End spool with threaded hole M7
Positionings side
End spool with hole f 9 mm.
Controls side
Devices for cable remote control for both the ends of spool.
For more det
ails about cables, please consult our catalogue
cable remote controls.
E1 SL
Electric push-pull control 3 positions
12 Vdc
Without lever for electric control
with override device
E2
Electric push-pull control 3 positions
24 Vdc
ES
Emergency lever for electric push-pull control
CONNECTOR
DIN 43650 -
A/ISO 4400
Important:
this lever was realized
as emergency lever and it'is
not allowed a continuos use.
For more information: WWW.SALAMI.IT
7
109
1
2
0
1
2
0
80
Allen wrench 4Allen wrench 4
ELECTRICAL DATA
PUSH - PULL SOLENOID
- VOL
TAGE: 12Vdc OR 24Vdc
- COIL POWER: 60 Watt at 20°C
- PROTECTION INDEX WITH CONNECTOR: IP 65
- HEAVY DUTY 70%
1
2
0
3
2 1
4
1
2
0
Working conditions for this control:
Flows up to 70 l/min -
18.5 US gpm
Pressure up to 240 bar - 3500 psi
5
136
(5.35)
STROKE
28
(1.1)
Override
158
(6.22)
Override
(0.19)
Allen wrench 4
Allen wrench 4
Allen wrench 4
The stroke for this control is of 5 mm,
for this reason the spools are dif
ferent of standard.
The available spools are from 01 to 06.
1
2
3
ELECTRIC CONNECTIONS SCHEME
1) NEGATIVE POLE
2) SPOOL IN
3) SPOOL OUT
4) GROUND WIRE
To avoid an excessive wearing of the
cont
acts, depending on the sparking
of these parts, we suggest a suitable
protection( for example diodes)
AB
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
34
IP
Hydraulic proportional control
Important:
when you order please specify top or side port
s
For more information please consult our catalogue
SHRC hydraulic remote controls.
IF
Hydraulic proportional control
with third float position (spool in)
SPOOL STROKE
7
G 1/4
53.5 (2.11)
G 1/4
(0.28)
5 60
4
4321 7
6
8
10
12
14
16
p ( bar )
Spool Stroke
(mm)
58
87
116
145
174
203
232
p ( psi )
0.19 0.230 0.160.120.080.04 0.27
Spool Stroke
(in)
1
2
0
A4
B4
A3
B3
A2
B2
A1
B1
P
T
Salami hydraulic
2 axis joystick
42.75
1.68
G 1/4
42.75
1.68
G 1/4
XA,XB,XF T POS. 0
Pressure XB POS. 1
Pressure XA,XF POS. 2
Pressure XA POS. 3
XA, XB, XF PORTS : G 1/4
90
XF XB
XA
5 60
4
4321 7
p ( bar )
6
8
10
12
14
16
18
8 9 10 11 12
Spool Stroke ( mm )
20
58
87
116
145
174
203
232
p ( psi )
261
290
0.19 0.230 0.160.120.080.04 0.27
Spool Stroke
(in)
0.31 0.35 0.39 0.43
1
2
0
3
0POS. 1 2 3
7
7
12
SPOOL STROKE
OPERATING SCHEME
Allen wrench 4
Allen wrench 4
Wrench 8
3201
A
B
XF
XB
XA
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
35
PP/P0
Pneumatic proportional/on-off
control
Pneumatic proportional/on-off control
This control is at the same time proportional and on-of
f type,
it depends if you use a pneumatic remote control
proportional type(with the characteristic curve of diagram),
or on-off type.
Thought for all truck hydraulic applications
Electro-pneumatic on-off
control - 12 Vdc
CONNECTOR
DIN 43650 -
A/ISO 4400
Starting from PP/PO adding the electro-valves you get P1 or P2
Electro-pneumatic on-off
control - 24 Vdc
P1
P2
Pneumatic on-off control
with third float position (spool in)
PQ
1
2
0
5 60
1
4321 7
2
3
4
5
6
7
p ( bar )
Spool Stroke
(mm)
14
29
43
58
72
87
101
p ( psi )
0.19 0.230 0.160.120.080.04 0.27
Spool Stroke
(in)
7
(0.28)
STROKE
G 1/8
135
(5.31)
G 1/8
Wrench 8
7
(0.28)
STROKE
Wrench 8
123
4.84
Rapid fitting f 6 (0.24)
ELECTRICAL DATA
- VOL
TAGE: 12Vdc OR 24Vdc
- COIL POWER: 6 Watt at 20°C
- PROTECTION INDEX WITH CONNECTOR: IP 65
1
2
0
XA, XB, XF PORTS : G 1/4
XA,XB,XF T POS. 0
Pressure XB POS. 1
Pressure XA,XF POS. 2
Pressure XA POS. 3
0POS. 1 2 3
7
7
12
SPOOL STROKE
OPERATING SCHEME
1
2
0
3
XF
XB XA
117
Wrench 8
3201
A
B
XF
XB XA
For electro-pneumatic control with third float position,
please get in touch with our sales dept.
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
36
CONNECTOR DIN 43650 - A/ISO 4400
PROTECTION INDEX IP65
For more information: WWW.SALAMI.IT
Preliminary specifications about electro-hydraulic controls
Before to introduce electro-hydraulic single modules it is neces
sary to specify the adding hydraulic components
necessary for the right functioning of it.As you can see in the drawing and hydraulic scheme it needs a pressure
reducing valve "PRV" at the inlet of piloting circuit that reduce the pressure of "P" line at the max value of 25 bar (363
psi), a back pressure "CPV" on neutral line that assure a min. pressure of 8 bar (116 psi) and some accessories as
fittings, pipe and filter.The pressure reduction at the piloting circuit inlet and the minimum value of
neutral line can be obtained also
with external st
andard valves made
by valve manufacturers, for this
reason Salami electro-hydraulic
controls can be supplied without
"PRV" and "CPV".
In this case is necessary to specify
it in phase of order.
Our standard supply has the "Tp"
port opened, we recommend to
connect it directly to tank because
a counter-pressure could be cause
of malfunction.
With reference to page 20,
"OUTLET MODULES", the outlet
U8 is shown in the hydraulic
scheme here below, remember that
with a special sleeve instead of
"CPV" valve you can change U8 in
a power beyond outlet type "U5".
INDEX
PRV - pressure reducing valve
CPV - counter pressure valve
Pp - pressure piloting line
Tp - tank piloting line
PL - P port
TL - T port
CPV
Tp - G 1/8
Pp - in case without pipe thread G1/8 female
PRV
Pp line
Tp line
B3B2B1
TL
12 - 25 bar
B1A1
PL
B3A3
Tp
B2A2
1
2
T
0
1
2
0
3
1
2
0
8 - 11 bar
FILTER
H1/H2
scheme
H1/H2
scheme
Pp
PRV
T
P
N
CPV
C1 C2
C1
C2
C1
C2
H1/H2
scheme
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
37
H1
ON-OFF
electro-hydraulic control
12 Vdc
H2
ON-OFF
electro-hydraulic control
24 Vdc
C1 - C2 coils de-energized POS. 0
C1 coil energized POS. 1
C2 coil energized POS. 2
OPERATING INSTRUCTIONS
please see the hydraulic circuit
of p
age before
169
6.66
120
4.71
C1 C2
Allen wrench 4
TECHNICAL DATA
- MAX PRESSURE IN "P"
30 bar
- MAX FLOW 2 l/min
- AVAILABLE VOLTAGE 12 - 24 Vcc
- COIL RESISTANCE 12Vdc:7.2 - 24Vdc:41.5
- POWER 14 W (20°C)
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
38
SPOOL POSITIONINGS
C2
Spring centered to neutral position
C6
C5
Two positions (neutral/pos. 2)
with spring return in neutral
Two positions (neutral/pos. 1)
with spring return in neutral
C4
C3
Spring centered to neutral
(pivot threaded male
for remote control)
Spring centered to neutral
(pivot threaded female
for remote control)
C8
C7
Two positions (pos. 1/pos. 2)
with spring return in pos. 1
Two positions (pos1/pos. 2)
with spring return in pos. 2
41.5
1.63
1
2
0
7
7
Spool stroke
38
1.5
M8
65.6
2.58
38
1.5
M8
46.1
1.81
1
2
0
7
7
Spool stroke
1
2
0
7
7
Spool stroke
1
2
0
14
Spool stroke
1
2
0
14
Spool stroke
1
2
0
7
Spool stroke
1
2
0
7
Spool stroke
Allen wrench 4
Allen wrench 4 Allen wrench 4
45
1.77
Allen wrench 4
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
39
R2
Detent on pos. 1/pos. 2
with spring return in neutral
R4
Detent on pos. 1
with spring return in neutral
R5
Detent on pos. 2
with spring return in neutral
R6
Two positions with detent on pos. 2
with spring return in neutral
R7
Two positions with detent on pos. 1
with spring return in neutral
CO
Detent on each intermediate positions
R9
Detent on pos. 1/pos. 2
and neutral position
1
2
0
7
7
Spool stroke
1
2
0
7
7
Spool stroke
1
2
0
7
Spool stroke
1
2
0
7
Spool stroke
1
2
0
7
7
Spool stroke
50
1.97
Allen wrench 4
64
2.51
Allen wrench 4
1
2
0
7
Spool stroke
7
1
2
0
7
Spool stroke
7
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
40
F1
Detent on pos. 3
with spring return in neutral
F2
Detent on pos. 1/pos. 2/pos. 3
with spring return in neutral
F3
Detent on pos. 1/pos. 3
with spring return in neutral
F4
Detent on pos. 2/pos. 3
with spring return in neutral
F5
Detent on pos. 3
with spring return in neutral
F6
Detent on pos. 1/pos. 3
with spring return in neutral
F7
Detent on pos. 2/pos. 3
with spring return in neutral
F8
Detent on pos. 1/pos. 2/pos. 3
with spring return in neutral
Allen wrench 4
72
2.82
1
2
0
12
Spool stroke
3
1
2
0
7
7
Spool stroke
3
5
1
2
0
7
Spool stroke
3
5
1
2
0
12
Spool stroke
3
7
3
0
1
12
Spool stroke
2
3
0
1
12
Spool stroke
2
7
79
3.11
Allen wrench 4
3
0
1
7
Spool stroke
2
5
3
0
1
7
Spool stroke
2
5
7
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
41
D9 M3
Device for spool positioning in 0
from the positions 1 and 2
by an external pressure signal.
Device for spool positioning in 0
from the positions 1 and 2
by an external pressure signal.
For tie-rod connection.
D8 M1
Device for spool positioning in 0
from the position 1
by an external pressure signal.
Device for spool positioning in 0
from the position 1
by an external pressure signal.
For tie-rod connection.
D7 M2
Device for spool positioning in 0
from the position 2
by an external pressure signal.
Device for spool positioning in 0
from the position 2
by an external pressure signal.
For tie-rod connection.
For manifacturers using load and overturning torque limiting device for
hydraulically operated cranes, Salami VDM8 valve is available with
some devices that allow the manifacturer to supply a pressure signal
inside it
self.This pressure signal, acting on the area of a piston of 18
mm(0.71 inc.) diameter, reacts to the force of the manual control bringing
back the spool at the position 0.
These devices are only available in combination with manual control.
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
M8
STROKE 7(0.28)
G 1/4
G 1/4
5.11
1.891.51
130
4838.5
Allen wrench 4
M8
STROKE 7(0.28)
G 1/4
4.33
1.89
110
48
Allen wrench 4
G 1/4
M8
7.00
(0.28)
91
4.00
48
2.00
Allen wrench 4
STROKE 7(0.28)
G 1/4
G 1/4
4.05
1.891.51
103
4838.5
Allen wrench 4
STROKE 7(0.28)
G 1/4
3.21
1.89
81.5
48
Allen wrench 4
G 1/4
7.00
(0.28)
64.5
2.54
48
2.00
Allen wrench 4
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
42
For more information: WWW.SALAMI.IT
CE
Pre-arrangement for
electrical device
MICROSWITCH TYPE: SAIA - BURGESS XGK - 88
For more information please get in touch with our sales dept.
1
2
0
Spool stroke
7
7
1
2
0
Spool stroke
7
7
CM
Spool positioning with microswitch
to st
art an electric motor
(available also for single acting spools)
1
2
0
Spool stroke
7
7
CW
Spool positioning with waterproof
microswitch to st
art an electric motor
(available also for single acting spools)
40°
5°
71.5
2.81
40
1.57
40°
5°
71.5
2.81
40
1.57
Allen wrench 4
40°
5°
71.5
2.81
40
1.57
Allen wrench 4
Allen wrench 4
PROTECTION INDEX
IP65
PROTECTION INDEX
IP67
CD
Spool positioning with double microswitch
(available also for single acting spools)
86
3.39
34
1.34
34
1.34
Allen wrench 4
1
2
0
Spool stroke
7
7
PROTECTION INDEX
IP65
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
43
For more information: WWW.SALAMI.IT
PM
Spool positioning with microswitch to start
an electric motor and potentiometer
to run up speed motor
(available also for single acting spools)
1
2
0
Spool stroke
7
7
3
1
2
86
3.39
34
1.34
34
1.34
Allen wrench 4
64
2.51
Allen wrench 4
G2
Detent on pos. 1/pos. 2
with hydraulic kick-out
1
2
0
7
7
Spool stroke
B A
Rotation angle (degreé °)
Resistance (Ohm)
6.000
5.000
4.000
3.000
2.000
1.000
0
0 90 180 270 360
IMPORTANT:
When you order
, please specify the setting pressure of the device.
With this type of spool positiong a special machining of the body is required.
G4
Detent on pos. 1
with hydraulic kick-out
1
2
0
7
7
Spool stroke
B A
G5
Detent on pos. 2
with hydraulic kick-out
1
2
0
7
7
Spool stroke
B A
E0.06.0911.02.02
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
44
For more information: WWW.SALAMI.ITFor more information: WWW.SALAMI.IT
How to order/VD8A
Double acting spool
Double acting motor spool
Double acting motor spool ("B" port blocked)
Double acting motor spool ("A" port blocked)
Single acting spool "A" working port
Single acting spool "B" working port
Double acting spool with float function in 3rd pos. (spool in)
Double acting spool with float function in 3rd pos. (spool out)
Double acting spool with regenerative function
in position 3 (spool in)
SPOOL TYPES (PAG. 22 - 23)
01
02
03
04
05
06
1
1
12
13
17
18
52
53
54
Double acting spool with regenerative function
in position 2 (spool in)
Double acting spool with regenerative function
in position 1 (spool out)
Over center double acting spool
"A" working port
Over center double acting spool
"B" working port
Over center double acting spool
"A" and "B" working port
s
VD8A 180 2 P 01 A 16501 D VA A/ X . 140AR B C2 /
P 01 A 000PR A
/
. 000PR B NL C2 / U1 G
EV2 NL A
A
See from page 10 to 14
INLET CONFIGURATION
Direct main relief valve
Piloted main relief valve
Without main relief valve
MAIN RELIEF VALVE (PAG. 24)
D
P
W
See page 24
MAIN RELIEF VALVE SETTING (bar)
VENTING VALVE
See page 25
NUMBER OF IDENTICAL
CONSECUTIVE SECTIONS
Nominal flow
2/3 of the nominal flow
SPOOL CHOICE ACCORDING
T
O THE INLET FLOW (PAG. 22)
A
C
PORT ON WHICH THE VALVE IS MOUNTED
Without lever box page 30 - SL
SPOOL CONTROLS
Handle controls from page 30 to 32
NL
- NP - MP - SS - FL - L1/L2
Devices for cable remote control page 33
D1 -
TC
Direct electric control and emergency devices page 33
E1 - E2 - SL
- ES
Hydraulic controls page 34
IP
- IF
Pneumatic and electro-pneumatic controls page 35
PP/P0 - P1/P2 - PQ
Electro-hydraulic controls pages 36 - 37
H1/H2
CONTROL SIDE (PAGE 29)
SPOOL POSITIONINGS
Page 38
C2 - C3 - C4 - C5 - C6 - C7 - C8
Page 39
R2- R4 - R5 - R6 - R7 - R9 - C0
Page 40
F1 - F2 - F3 - F4 - F5 - F6 - F7 - F8
Page 41
D7 - D8 - D9 - M1 - M2 - M3
Page 42 - 43
CE - CM - CW - CD - PM - G2 - G4 - G5
*Available for quantity, please contact our sales dept.
Parallel circuit - single or double module (page 15)
W
orking module with adjustable
or fixed priority flow valve (page 16)
Series circuit - single or double module (page 17)
Tandem circuit (page 18)
WORKING MODULES - CIRCUIT TYPE (PAG. 15 - 19)
P
R
S
T
Adjustable overload valve
(available settings at p
age 26)
Adjustable overload and anti-cavitation valve
(available settings at page 26)
Anti-cavitation valve (page 26)
Conversion valve (page 27)
Pre-arrangement for auxiliary valve (page 27)
Flow restrictor P A/B (page 28)
Flow restrictor A/B T (page 28)
Electric venting valve (page 25)
External piloted venting valve (page 25)
AUXILIARY VALVES (PAG. 26 - 28)
AR
VR
CV
PR
ST
SP
•
•
VA
EV..
EHV
/ I2 G
GAS threaded
SAE threaded
METRIC threaded
JIS B 2351 threaded
PORTS (PAG. 9)
G
S
M*
G*
See hydraulic scheme and commercial codes of page19
MID INLET CONFIGURATION
See hydraulic scheme and commercial codes of page 20
OUTLET CONFIGURATION
How to order/ VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
45
E0.06.0911.02.02
E0.06.0911.02.02
VD8A
DIRECTIONAL CONTROL VALVE
SECTIONAL
TYPE
46
DESCRIPTION OF THE NEW PRODUCT IDENTIFICATION LABEL
A
B
C D
GFE
Based on the firm certification ISO 9001 - UNI EN 29001, section 4.8 (identification
and tracebility of the product), we have adopted a new identific
ation label starting
from the 1
st
march 1995. Pls, see following example:
A = Product short descritpion (eg. VD8A/FDD/U4G).
B = Customer part number.
C = Salami part number (eg. 6235 0025 0).
D = Production code (for Salami management)
E = Rotation sense (only for pumps).
F = Production date (see data sheet here below)
G = Progressive number of assembling.
Only for pumps 2PB and 2PZ
(except triple 2PB) the identification product
is marked on the top of the pump body
as shown here below:
SALAMI 09/02
MADE IN ITALY 4010998
612271211 nr. 13
2PB 19S B25 B5
Mounth and year of made: maybe in the future you can find this
type of production date in the label beside too.
Production code (for Salami management).
Salami part number and progressive number of assembling.
Product short description.
Rotation sense.
For more information: WWW.SALAMI.IT
E0.06.0911.02.02
ASSEMBLED
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
WARRANTY
- W
e warrant products sold by us to be free from defects in material
and workmanship.
- Our sole obligation to buyer under this warranty is the repair or replacement,
at our option, of any products or parts thereof which, under normal use and
proper maintenance, have proven defective in material or workmanship, this
warranty does not cover ordinary wear and tear, abuse, misuse, averloading,
alteration.
- No claims under this warranty will be valid unless buyer notifies SALAMI in
writing within a reasonable time of the buyer's discovery of such defects,but
in no event later than twelve (12) mounths from date of shipment to buyer.
- Our obligation under this warranty shall not include any transportation charges
or cost of installation, replacement, field repair, or other charges related to
returning products to us; or any liability for directs, indirects or consequential
damage or delay.If requested by us, products or parts for which a warranty
claim is made are to be returned transportation prepaid to our factory. The risk
of loss of any products or parts thereof returned to SALAMI will be on buyer.
- No employee or representative is authorized to change any warranty in any
way or grant any other warranty unless such change is made in writing and
signed by an officer of SALAMI.
