Proportional Two-Stage Directional Valves
High Performance with Main Stage Spool Feedback
Pressures to 350 bar (5000 psi)
KBFDG5V-5/7/8/10 Series
2
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Contents
Introduction
General Description 3
Features and Benefits 3
Typical Section 3
Model Code 4
Spool Data 5
Functional Symbol 5
Operating Data 6
Pressures and Minimum Flow Rates 7
Performance Curves
Power Capacity Envelope 8
Pressure Gain 8
Frequency Response 8
Flow Gain 9
Dimension KBFDG5V-5/7/8/10 11
Mounting Surface Interface KBFDG5V-5/7/8/10 13
Electrical Information
Block Diagram 15
Typical Connection Arrangements 16
Application Data
Fluid Cleanliness 17
Hydraulic Fluids 17
Installation 17
Mounting Bolt Kits 17
Seal Kits 17
Plugs 17
Extension Cable 17
Service Information 17
Released Assembly Numbers 18
3
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Introduction
General Description
Vickers proportional valves
shown in this catalog are
suitable for working pres-
sures up to 350 bar (5000
psi) and flow rates to 375
l/min (99 USgpm).
They are designed to provide
a controlled oil flow in pro-
portion to a command signal,
with spool position feedback
to provide accurate control.
KBFDG5V-5/7/8/10
A range of proportional direc-
tional valves with control
amplifiers built directly on,
and prewired to the valves.
Factory-set adjustments of
gain, spool deadband com-
pensation, and offset ensure
high valve-to-valve repro-
ducibility.
The only electrical inputs
required are power supply
(24V) and a voltage com-
mand signal of ±10V or 4-20
mA. The amplifier is housed
in a robust metal enclosure,
sealed against ingress of
water and other fluids.
Electrical connections are via
a standard 7-pin plug.
A spool position monitor
point allows the function of
the valve to be electrically
monitored.
Features and Benefits
• Factory-sealed adjust-
ments increase valve-to-
valve reproducibility.
• Valve with integrated
amplifier selected,
ordered, delivered and
installed as one perform-
ance-tested package.
• Electronic feedback LVDT
ensures accurate spool
position control.
• Vibration and shock tested.
• Standard 24V DC supply
with wide tolerance band.
• Wide range of spool and
flow rate options.
• Standard ±10 V DC or
4-20 mA command signals.
• Installation wiring reduced
and simplified.
• Standard 7-pin connector.
• Simple valve removal and
replacement for service.
• Supported by auxiliary
function modules.
• Full CE electromagnetic
compatibility.
• IP65 and IP67
environmental
protection rating.
• Optional valve enable
function.
• On board ramp adjustment.
• Failsafe feature.
Typical Section View
KBFDG5V-7, 10 design
4
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Model Code
Valve type
K – Proportional valve
Integral amplifier
B – Integral amplifier “B”
series
Feed back arrangement
F – From main stage
Control type
D - Directional valve
Mounting
G – Subplate mounted
Operation
5 – Solenoid controlled, pilot
operated
Pressure rating
V – 310 bar (4500 psi) Size 05
– 350 bar (5000 psi) Size 07
– 350 bar (5000 psi) Size 08
– 350 bar (5000 psi) Size 10
Interface
ISO 4401
5 – Size 05
7 – Size 07
8 – Size 08
10 – Size 10
Spool type, flow rating
and metering
See “Functional Symbol” on
page 5. p = 5 bar (72 psi) per
metering flow path, e.g. B to T.
Symmetric spools
For KBFDG5V-5 valves:
2C95N – 100 L/min
(26 US gpm)
33C80N – 80 L/min
(21 US gpm)
For KBFDG5V-7 valves:
2C200N – 200 L/min
(52 US gpm)
33C160N – 160 L/min
(42 US gpm)
For KBFDG5V-8 valves:
2C375N – 375 L/min
(99 US gpm)
33C375N – 375 L/min
(99 US gpm)
For KBFDG5V-10 valves:
2C700N – 700 L/min
(185 US gpm)
33C700N – 700 L/min
(185 US gpm)
Asymmetric spools
First figure (***N) is flow
rating P-A, or A-T (“A” port
flow); last figure (N***) is
flow rating P-B, or B-T
(“B” port flow)
For KBFDG5V-5 valves:
2C70N45 – 70 L/min
(18.5 US gpm), “A” port flow
45 L/min (11.9 US gpm),
“B” port flow
33C60N40 – 60 L/min
(17.2 US gpm), “A” port flow 40
L/min (10.6 US gpm),
“B” port flow
For KBFDG5V-7 valves:
2C150N85 – 150 L/min
(40 US gpm), “A” port flow;
85 L/min (22.4 US gpm),
“B” port flow
2C80N150 – 80 L/min
(21 US gpm), “A” port flow;
150 L/min (40 US gpm),
“B” port flow
33C130N65 – 130 L/min
(33.3 US gpm), “A” port flow;
65 L/min (17.2 US gpm),
“B” port flow
For KBFDG5V-8 valves:
2C375N250 – 375 L/min
(99 US gpm), “A” port flow;
250 L/min (66 US gpm),
“B” port flow
12C375N250 – 375 L/min
(99 US gpm), “A” port flow;
250 L/min (66 US gpm),
“B” port flow
33C375N250 – 375 L/min
(99 US gpm), “A” port flow;
250 L/min (66 US gpm),
“B” port flow
133C375N250 – 375 L/min
(99 US gpm), “A” port flow;
250 L/min (66 US gpm),
“B” port flow
733C375N250 – 375 L/min
(99 US gpm), “A” port flow;
250 L/min (66 US gpm),
“B” port flow
72C375N250 – 375 L/min
(99 US gpm), “A” port flow;
250 L/min (66 US gpm),
“B” port flow
For KBFDG5V-10 valves:
2C700N420 – 700 L/min
(185 US gpm), “A” port flow;
420 L/min (110 US gpm),
“B” port flow
33C700N420 – 700 L/min
(185 US gpm), “A” port flow;
420 L/min (110 US gpm),
“B” port flow
12C700N420 – 700 L/min
(185 US gpm), “A” port flow;
420 L/min (110 US gpm),
“B” port flow
133C700N420 – 700 L/min
(185 US gpm), “A” port flow;
420 L/min (110 US gpm),
“B” port flow
72C700N420 – 700 L/min
(185 US gpm), “A” port flow;
420 L/min (110 US gpm),
“B” port flow
733C700N420 – 700 L/min
(185 US gpm), “A” port flow;
420 L/min (110 US gpm),
“B” port flow
For actual maximum flows
refer to power capacity
envelopes, page 8.
Pilot supply
X – Internal
EX– External
(Pilot drain - External ONLY)
Control signal
M1 – ±10V
M2 – 4-20mA
Electrical connection
PC7 – 7 pin connector without
plug
PE7 – 7 pin connector with plug
PH7 – As PE7 but with pin
“C” used for enable signal
PR7 – As PC7 but with pin
“C” used for enable signal
Coil rating
H – 24 VDC amplifier supply
Pilot drain port
1 – 4 bar (58 psi)
Design number
10 – 10 series
12
15
14
13
11
10
9
8
7
6
5
4
3
2
1
K B F D G 5 V – * – ********* – (E)(X) – M* – P – H 1 – **
1 2 3 4 5 6 7 8 10 11 12 13
14
159
WARNING
Valves with integral
amplifiers are sup-
plied with or without the
metal 7-pin plug. The Vickers
plug, part no. 934939, must
be correctly fitted to ensure
that the EMC rating and
IP67 rating are achieved. The
plug retaining nut must be
tightened with a torque of 2-
2,5 Nm (1.5-2.0 lbf ft) to
effect a proper seal.
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EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Spool Data
Spool Symbols
Symmetric Spools
Base line pressure drop
Δp
= 5 bar (72 psi) per metering
flow path, e.g. B to T. For
actual maximum flow refer
to power capacity envelope
curves.
Spool code Spool symbol Flow rating
For KBFDG5V-5 valves:
2C95N 2C 95 L/min (25 USgpm)
33C80N 33C 80 L/min (21 USgpm)
For KBFDG5V-7 valves:
2C200N 2C 200 L/min (52 USgpm)
33C160N 33C 160 L/min (42 USgpm)
For KBFDG5V-8 valves:
2C375N 2C 375 L/min (99 USgpm)
33C375N 33C 375 L/min (99 USgpm)
For KBFDG5V-10 valves:
2C700N 2C 700 L/min (185 USgpm)
33C700N 33C 700 L/min (185 USgpm)
Spool code Spool symbol Flow rating
For KBFDG5V-5 valves:
2C70N45 2C 70 L/min (18.5 USgpm) “A” port flow
45 L/min (11.9 USgpm) ”B” port flow
33C60N40 33C 60 L/min (17.2 USgpm) ”A” port flow
40 L/min (10.6 USgpm) ”B” port flow
For KBFDG5V-7 valves:
2C150N85 2C 150 L/min (40 USgpm) “A” port flow
85 L/min (22.4 USgpm) ”B” port flow
2C80N150 2C 80 L/min (21 USgpm) ”A” port flow
150 L/min (40 USgpm) ”B” port flow
33C130N65 33C 130 L/min (33.3 USgpm) “A” port flow
65 L/min (17.2 USgpm) ”B” port flow
For KBFDG5V-8 valves:
2C375N250 2C 375 L/min (99 USgpm) “A” port flow
250 L/min (66 USgpm) ”B” port flow
33C375N250 33C 375 L/min (99 USgpm) “A” port flow
250 L/min (66 USgpm) ”B” port flow
12C375N250 12C 375 L/min (99 USgpm) “A” port flow
250 L/min (66 USgpm) ”B” port flow
133C375N250 133C 375 L/min (99 USgpm) “A” port flow
250 L/min (66 USgpm) ”B” port flow
72C375N250 72C 375 L/min (99 USgpm) “A” port flow
250 L/min (66 USgpm) ”B” port flow
733C375N250 733C 375 L/min (99 USgpm) “A” port flow
250 L/min (66 USgpm) ”B” port flow
For KBFDG5V-10 valves:
2C700N420 2C 700 L/min (185 USgpm) “A” port flow
420 L/min (110 USgpm) ”B” port flow
33C700N420 33C 700 L/min (185 USgpm) “A” port flow
420 L/min (110 USgpm) ”B” port flow
12C700N420 12C 700 L/min (185 USgpm) “A” port flow
420 L/min (110 USgpm) ”B” port flow
133C700N420 133C 700 L/min (185 USgpm) “A” port flow
420 L/min (110 USgpm) ”B” port flow
72C700N420 72C 700 L/min (185 USgpm) “A” port flow
420 L/min (110 USgpm) ”B” port flow
733C700N420 733C 700 L/min (185 USgpm) “A” port flow
420 L/min (110 USgpm) ”B” port flow
Spool Type and Flow Ratings
Asymmetric Spools
Figure preceding metering
type designator, “N” e.g.
2C**N) is flow rating P–A,
or A–T (”A” port flow): Figure
after “N” (N***)
is flow rating P–B, or B–T
(”B” port flow).
Available Spools for
KBFDG5V
Spool type 2C
AB
PT
Spool type 33C
AB
PT
Spool type 72C
AB
PT
Spool type 733C
AB
PT
Spool type 133C
AB
PT
Spool type 12C
AB
PT
Application Notes
A. Main-Spool Options
Spools shown are meter-in/
meter-out types. Center-
condition options are types
2, 33, 12, 133, 72 and 733.
B. Internally Piloted Models
Differ from detailed symbols
above by omission of plug A
and the blocking of port X by
the mating surface.
Simplified Symbol
A
B
P
T
Functional Symbol
7-pin
plug
Detailed Symbol
ATB
ATYP
A
T
B
P
plug A
plug B
P
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EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Operating Data
Data is typical with fluid at 36 cSt (168 SUS) and 50 C (122 F).
Power supply 24V DC (21V to 36V including 10% peak-to-peak max. ripple)
max current 3A
Command signal –10 V to +10 V DC or 4-20mA
Input impedance 47 kΩ
Common mode voltage to pin B 18V (max)
Valve enable signal for model codes PH7 & PR7
Enable >8.5V (36V max)
Disable <6.5V
Input impedance 10 kΩ
7-pin plug connector Pin Description
A Power supply positive
B Power 0V
C Monitor 0V (PE7 & PC7)
C Valve enable (PH7 & PR7)
D Command signal (+)–non-inverting input, or current input
E Command signal (–)–inverting input, or current output
F Monitor output
G Protective ground
View of pins of fixed half
Electromagnetic compatibility (EMC):
Emission (10 V/m) EN 50081-2
Immunity (10 V/m) EN 50082-2
Threshold command voltage 0.25V– 2C & 33C Spools
(minimum voltage for minimum flow)
Monitor signal (pin F) ±4.8 – ±9.5VDC (data for individual valve to be published in
the catalogue later)
Output impedance 10kΩ
Power stage PWM frequency 10 kHz nominal
Step input response, with flow through P–A–B–T, Δp=5 bar (72 psi) per metering path, e.g. P–A
Time to reach 90% of required step:
KBFDG5V–5 KBFDG5V–7 KBFDG5V–8 KBFDG5V–10
Required flow step (with reducing module):
0 to 100% 47 ms 52 ms 84 ms 130 ms
100% to 0 30 ms 36 ms 58 ms 150 ms
+90 to –90% 46 ms 52 ms 88 ms 170 ms
Reproducibility, valve-to-valve (at factory settings): ≤5%
Flow at 100% command signal
Hysteresis with flow through P-A-B-T <1%
Δp=5 bar (72 psi) per metering path (P–A or B–T)
Protection:
Electrical Reverse polarity protected
Environmental IEC 60529, Class IP67
Ambient air temperature range for full performance 0° C to 70° C (32° F to 158° F)
Oil temperature range for full performance 0° C to 70° C (32° F to 158° F)
Minimum temperature at which valves will
work at reduced performance –20° C (–4° F)
Storage temperature range –25° C to +85° C (–13° F to +185° F)
Relative duty factor Continuous rating (ED = 100%)
Auxiliary electronic modules (DIN -rail mounting):
EHA-CON-201-A2* signal converter See catalog GB 2410B
EHD-DSG-201-A-1* command signal generator See catalog GB 2470
EHA-RMP-201-A-2* Ramp generator See catalog GB 2410A
EHA-PSU-201-A-10 Power supply See catalog GB 2410A
EHA-PID-201-A-20 PID controller See catalog GB 2427
Mass: Valves with pressure reducer
KBFDG5V-5 9,9 kg (21.8 lb) approx.
KBFDG5V-7 11,1 kg (24.4 lb) approx.
KBFDG5V-8 17,1 kg (37.6 lb) approx.
KBFDG5V-10 43,9 kg (96.5 lb) approx.
AG
B
C
D
E
F
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EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Model Pilot pressure Pilot drain
source ✝ connection P Port A&B Ports T Port X Port Y Port
KBFDG5V-5 External To Port Y 315 (4500) 315 (4500) 210 (3000) 315 (4500) 4 (58)
Internal To Port Y 315 (4500) 315 (4500) 21 (3000) 315 (4500) 4 (58)
KBFDG5V-7/8/10 External To Port Y 350 (5000) 350 (5000) 350 (5000) 350 (5000) 4 (58)
Internal To Port Y 350 (5000) 350 (5000) 350 (5000) 350 (5000) 4 (58)
Pressure and
Minimum Flow
Rates
MAXIMUM PRESSURES, BAR (PSI) VALVES WITH PRESSURE REDUCER
✝ Minimum recommended pilot operating pressure = 50 bar (700 psi)
Valve Size/Spool Code Min. Flow Rate L/min In
3
/min
KBFDG5V–5–2C100N 0,5 30
KBFDG5V–5–33C80N 0,5 30
KBFDG5V–7–2C200N 1,0 60
KBFDG5V–7–33C160N 1,0 60
KBFDG5V–8–2C375N 1,5 91
KBFDG5V–8–33C375N 1,5 91
KBFDG5V-10-2C700N 3,0 182
KBFDG5V-10-33C700N 3,0 182
MINIMUM RECOMMENDED FLOW RATES
For spool types 2C and 33C
Δp = 10 bar (142 psi) for
looped flow P–A–B–T
(or P–B–A–T)
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EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
FLOW GAIN
At Δp = 5 bar (72 psi) per metering path (e.g. P-A), with flow
through P-A-B-T or P-B-A-T. Percentage command signals
applicable for positive and negative values of
command signal.
"2C" Spools
Flow rate – lpm
Flow rate – US gpm
Command signal (% of max.)
0 20 40 60 80 100
KBFDG5V–5–2C95N
KBFDG5V–7–2C200N
KBFDG5V–8–2C375N
20
40
60
80
100
120
140
160
180
200
220
0
100
200
300
400
500
600
700
900
800
KBFDG5V–10–2C700N
At other Δp values, flow rates approximate to:Q
X
= Q
D
where Q
D
= Datum flow rate
Δp
D
= Pressure drop at datum flow rate
Δp
X
= Required Δp
Limited by valve power capacity. Refer to curves on
page 8.
Δp
X
Δp
D
"33C" Spools
Flow rate – lpm
Flow rate – US gpm
Command signal (% of max.)
0 20 40 60 80 100
20
40
60
80
100
120
140
160
180
200
220
0
100
200
300
400
500
600
700
900
800
KBFDG5V–10–33C700N
KBFDG5V–5–33C80N
KBFDG5V–7–33C160N
KBFDG5V–8–33C375N
Performance
Curves
KBFDG5V-5/7/8/10
350
300
200
100
0
Flow rate – lpm
300 600 900 1200 1500 1800 2100
POWER CAPACITY ENVELOPE
Flow through P-A-B-T or P-B-A-T
US gpm
160 240 320800 400 480
5000
4000
3000
2000
1000
psi
0
Valve Pressure drop – bar
560
KBFDG5V–7
KBFDG5V–5
KBFDG5V–8
KBFDG5V–10
12 3 4 5 2 10 15 0 3 0 4 0 6 0 8 0
Amplitudes
Fre
q
uency (Hz)
+ 3
0
-1
-2
-3
-4
-5
-6
A
mplitude ratio
(
dB
)
P
h
a
s
e
l
ag
(
d
egre
e
s
)
135
90
0
45
KBFDG5V–8
KBFDG5V–10
KBFDG5V–7/8/10
KBFDG5V–5
FREQUENCY RESPONSE, TYPICAL
For an amplitude of 50 ±25% of rated flow (ISO-10770-1)
2C spool measured at = 36 cSt (168 SUS),
t = 50° C (122° F) and pilot pressure = 40 bar
Phase lags
KBFDG5V–7
KBFDG5V–5
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EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
33C60N40
P-A
A-T
Fl ow rate – l pm
Fl ow rate – US gpm
Command si gnal (% of max.)
0
10
20
30
40
50
60
70
80
0 20 40 60 80 100
0
3
5
8
11
13
16
19
21
B-T
P-B
Performance
Curves
Flow Gain
Flow rate – lpm
Flow rate – US gpm
Command signal (% of max.)
0
10
20
30
40
50
60
70
80
0 20 40 60 80 100
2C70N45
P-A
A-T
P-B
B-T
0
3
5
8
11
13
16
19
21
KBFDG5V-7
KBFDG5V-5
2C150N85
Flow rate – lpm
Flow rate – US gpm
Command signal (% of max.)
0
20
40
60
80
100
120
140
160
0 20 40 60 80 100
0
5
11
16
21
26
32
37
42
P-A
A-T
B-T
P-B
33C130N65
Flow rate – lpm
Flow rate – US gpm
Command signal (% of max.)
0
20
40
60
80
100
120
140
160
0 20 40 60 80 100
0
5
11
16
21
26
32
37
42
P-A
A-T
P-B
B-T
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EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
72C375N250 & 733C375N250
Fl ow rate – l pm
Fl ow rate – US gpm
Command si gnal (% of max.)
0
50
100
150
200
250
300
350
450
400
0 20 40 60 80 100
10
20
30
40
50
60
70
80
90
100
110
P-A
A-T
P-B
B-T
Performance
Curves
KBFDG5V-8/10
12C375N250 & 133C375N250
Fl ow rate – l pm
Fl ow rate – US gpm
Command si gnal (% of max.)
0
50
100
150
200
250
300
350
450
400
0 20 40 60 80 100
10
20
30
40
50
60
70
80
90
100
110
P-A
A-T
P-B
2C375N250 & 33C375N250
Fl ow rate – l pm
Fl ow rate – US gpm
Command si gnal (% of max.)
0
50
100
150
200
250
300
350
450
400
0 20 40 60 80 100
10
20
30
40
50
60
70
80
90
100
110
P-A
A-T
P-B
B-T
900
800
700
600
500
400
300
200
220
200
180
160
140
120
100
80
60
40
20
20 40
Command si gnal (% of max.)
2C700N420 & 33C700N420
P-A
P-B
A-T
B-T
Flow rate - lpm
Fl ow rate - US gpm
60 80 1000
0
P-A
P-B
A-T
900
800
700
600
500
400
300
200
220
200
180
160
140
120
100
80
60
40
20
20 40
Command si gnal (% of max.)
12C700N420 & 133C700N420
Flow rate - lpm
Fl ow rate - US gpm
60 80 1000
0
P-A
P-B
A-T
B-T
900
800
700
600
500
400
300
200
220
200
180
160
140
120
100
80
60
40
20
20 40
Command si gnal (% of max.)
72C700N420 & 733C700N420
Flow rate - lpm
Fl ow rate - US gpm
60 80 1000
0
KBFDG5V-8 KBFDG5V-10
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EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Installation
Dimensions
KBFDG5V-5/7
Mounting surface, seals
supplied. For mating surface
dimensions, see page 14 (size
05 with additional X
and Y ports). For mounting
subplate options and bolt
options, see catalog GB-2425.
KBFDG5V-5
mm (Inch)
KBFDG5V-7
mm (Inch)
A
B
X
P
Y
T T
Ramp adjustment switches
located under lid.
70.0 [2.76]
78.4 [3.09]
321.1 [12.64]
227.6 [8.96]
40.0 [1.58]
58.0 [2.28]
193.6 [7.62] 127.5 [5.02]
12.0 [0.47]
285.2 [11.23]
Valve with Pressure Reducer
Reducer
A
B
Y
X
P
T
92.0 [3.62]
294.5 [11.59]
40.0 [1.58]
11.1 [0.44]
226.2 [8.91]
104.2 [4.10]
44.4 [1.75]
80.9 [3.18]
330.4 [13.01]
235.8 [9.28]
Ramp adjustment switches
located under lid.
Valve with Pressure Reducer
Reducer
Mounting surface, seals
supplied. For mating surface
dimensions, see page 14.
For mounting subplate
options and bolt options,
see catalog GB-2425.
12
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Installation
Dimensions
KBFDG5V-8
KBFDG5V-8
mm (Inch)
KBFDG5V-10
mm (Inch)
Mounting surface, seals
supplied. For mating surface
dimensions, see page 15.
For mounting subplate
options and bolt options,
see catalog GB-2425.
X
A
B
T
P
Y
252.1 [9.93]
117.8 [4.64]
336.7 [13.26]
359.8 [14.17]
40.0 [1.58]
105.3 [4.15]
12.4 [0.49]
257.2 [10.13]
79.4 [3.13]
102.6 [4.04]
Ramp adjustment switches
located under lid.
Valve with Pressure Reducer
Reducer
184.42 [7.261]
190.50 [7.500]
321.09 [12.641]
T
XA B
PY
Valve with Pressure Reducer
Reducer
Ramp adjustment switches
located under lid.
196.80 [7.748]
507.21 [19.969]
51.02 [2.009]
40.0 [1.58]
158.80 [6.252]
3rd angle
projection
Mounting surface, seals
supplied. For mating surface
dimensions, see page 15.
For mounting subplate
options and bolt options,
see catalog GB-2425.
3rd angle
projection
13
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
2 holes Ø 4,0 (0.157 dia)
x 8,0 (0.31) min. depth
4 holes M10 x 17,0 (0.67)
min. full thread depth
[3/8 -16 UNC optional]
2 holes M6-6H x 17,0 (0.67)
min. full thread depth
[1/4 -20 UNC optional]
3 holes (ports L, X, Y)
Ø 6,3 (0.25 dia) max.
4 holes (ports P, T, A, B)
Ø 17,5 (0.69 dia) max.
95,0
(3.74)
min.
130,0 (5.12) min.
18,3
(0.72)
34,1 (1.34)
50,0 (1.97)
65,9 (2.59)
76,6 (3.016)
88,1 (3.47)
101,6 ± 0,1 (4.0 ± 0.004)
1,6 ± 0,1
(0.063 ± 0.004)
14,3 (0.56)
15,9
(0.63)
71,5
± 0,1
(2.815
± 0.004)
P
T
AB
X
Y
L
11,0
(0.43)
69,9
± 0,1
(2.75
± 0.004)
57,2
(2.25)
55,6
(2.19)
34,9
(1.38)
Mounting
Surfaces
Dimensions shown in mm (in).
General Description
When a subplate is not used,
a machined pad must be pro-
vided for valve mounting. Pad
must be flat within 0,0127
mm (.0005 inch) and smooth
within 1.6 mm (63 microinch).
Mounting bolts, when provid-
ed by customer, should be
ISO 898 class 12.9 or better.
Bolt Kits See page 17.
Dimensional Tolerances
Dimensional tolerance on
interface drawings is 0,2
mm ( 0.008”) except where
otherwise stated. ISO 4401
specifies inch conversion to
0.01”.
Conversion from Metric
ISO 4401 gives dimensions
in mm. Inch conversions are
accurate to 0.01” unless oth-
erwise stated.
Mounting Bolt Tappings
ISO 4401 gives metric thread
tappings. Alternate UNC tap-
pings are Vickers recommen-
dations that allow these
plates and associated valves
to be used up to their maxi-
mum pressures, when using
Vickers recommended bolt
kits, or bolts of an equivalent
strength. It is recommended
that Customer’s own mani-
fold blocks for UNC bolts
should be tapped to the min-
imum depths given in the
footnotes.
ISO Standard Size 05
without Ports X and Y
This interface conforms to
ISO 4401-05-04-0-05,
NSI/B93.7M (and NFPA)
size 05, CETOP R35H4
2-05, DIN 24340
Form A10.
ISO Standard Size 05
with Ports X and Y
37,3 (1.47)
5 ports Ø 11,2 (0.44 dia)
including optional tank port
27,0 (1.06)
16,7 (0.66)
6,3 (0.25)
3,2 (0.12)
50,8 (2.0)
46,0 ±
(1.81 ± 0.004)
0,1
32,5
(1.28)
90,0 (3.54) min.
P
A
B
T
A
T
B
54,0 ± 0,1
(2.12 ± 0.004)
69,0
(2.72)
min.
21,4
(0.84)
Optional port
(T
B
)
4 holes, M6-6H x 16 (0.63)
min. full thread depth
(1/4”-20 UNC 2B optional)
P
A
T
A
T
B
62,0 (2.44)
8,0
(0.315)
11,0
(0.433)
X
Hole Ø 6,3 (0.25 dia) max.
Y
B
ISO Standard Size 07
Interface
This interface conforms to:
ISO 4401-07-07-0-05
ANSI/B93.7M (and NFPA)
size 07 CETOP R35H4.3-07,
DIN 24340 Form A16
14
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
2 holes Ø 7,5 (0.295 dia)
8,0 (0.31) min. depth
6 holes, M12-6H x 20,0 (0.78) min. full thread depth
[1/2 -13 UNC Optional]
153,0 (6.02) min.
5,6 (0.22)
17,5 (0.689)
29,4 0,1 (1.157 0.004)
53,2 0,1 (2.094 0.004)
94,5 0,1 (3.720 0.004)
100,8 (3.968)
112,7 (4.437)
130,2 0,1
(5.126 0.004)
77,0 (3.03)
92,1 0,1
(3.626
0.004)
74,6
(2.937)
73,0
(2.874)
46,0
(1.181)
19,0 (0.748)
17,4 (0.685)
118,0
(4.65)
min.
4,8 0,1
(0.189 0.004)
Ports X,Y:
Ø11,2 (0.44 dia) max.
Port L:
Ø11,2 (0.44 dia) max.
Ports P, T, A, B:
Ø 23,4 (0.92 dia) max.
P
T
A
X
Y
L
B
Mounting
Surfaces
Dimensions shown in mm (in).
ISO Standard Size 08
Interface
This interface conforms to:
ISO 4401-08-08-0-05
ANSI/B93.7M (and NFPA)
size 08 CETOP R35H4.3-08,
DIN 24340 Form A25
34.9
[1.38]
41.3
[1.62]
76.2 [3.00]
82.6 [3.25]
114.3 [4.50]
138.6 [5.46]
147.6 [5.81]
168.3 [6.62]
190.5 [7.50]
230.1 [9.06]
44.4
[1.75]
79.4
[3.12]
123.8
[4.88]
130.2
[5.12]
158.8
[6.25]
198.9
[7.83]
7.1 Dia
[.28] Dia 3-Places
Ports X, Y, L
11.2 Dia
[.44] Dia 3-Places
Ports P, T, A, B
32.0 Dia (Max)
[1.26] Dia (Max)
T
P
Y
A
B
X
L
M20 Thread
[3/4-10 UNC Optional]
ISO Standard Size 10
Interface
This interface conforms to:
ISO 4401-10-09-0-05
ANSI/B93.7M (and NFPA)
size 10, CETOP 35H4.3-10,
DIN 24340 Form A32
15
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Electrical
Information
Electrical Block Diagram
Modulator
Solenoid drive
Valve envelope
7-pin plug connections
+24V A
B
D
E
F
G
Power 0V
Monitor 0V
Protective ground
Non−inverting
Inverting
Command
signal,
see table
Compensation
network
+15V
0V
−15V
+24V
LVDT
C
Monitor output
+24V
Ga i n
Deadband
Modulator
Solenoid drive
+24V
Wiring
Connections must be made
via the 7-pin plug mounted
on the amplifier. See page
NO TAG of this leaflet and
Installation and Start-up
Guidelines, ML-B-9090A for
cable recommendations.
COMMAND SIGNALS AND OUTPUTS
7-pin plug Flow direction
Pin D Pin E
Positive OV
P to AOV Negative
U
D
- U
E
= Positive
Negative OV
P to BOV Positive
U
D
- U
E
= Negative
Current from Pin D to E
4-12mA P to B
12-20mA P to A
WARNING
All power must be switched off before connecting or
disconnecting any plugs.
▲ Note: In valves with PH7 or PR7 type
electrical connection, pin C is used for a
valve enable signal.
16
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Input
User Panel
Power
Supply
Demand
Signal
Spool
Position
Monitor
0V must be
connected to ground
Enclosure
+24V
0V
10V
or 4-20mA
Valve must be
connected to
ground via
subplate
Connector shell
Outer Screen
KB..PC7/PE7 valve
A
B
DorE
EorD
0V
0V
C
Drain Wire
Inner Screen
G
F
+
_
Electrical
Information
Typical Connection
Arrangements
0V
Input
User Panel
Power
Supply
Demand
Signal
Spool
Position
Monitor
+24V
10V
Valve must be
connected to
ground via
subplate
Connector
shell
Outer Screen
A
B
DorE
0V
0V
C
Drain Wire
Inner Screen
EorD
G
F
KB..PR7/PH7 valve
0V must be
connected to ground
Enable
Signal
+8.5V
to 36V
0V
+
_
or 4-20mA
Wiring Connections for
Valves with Enable
Feature
▲Note:
In applications where the
valve must conform to
European RFI/EMC regula-
tions, the outer screen
(shield) must be connected
to the outer shell of the
7 pin connector, and the
valve body must be fastened
to the earth ground. Proper
earth grounding practices
must be observed in this
case, as any differences
in command source and
valve ground potentials will
result in a screen (shield)
ground loop.
WARNING
Electromagnetic
Compatibility (EMC)
It is necessary to ensure that
the valve is wired up as
above. For effective protec-
tion the user electrical cabi-
net, the valve subplate or
manifold and the cable
screens should be connect-
ed to efficient ground points.
The metal 7 pin connector
part no. 934939 should be
used for the integral amplifi-
er. In all cases both valve
and cable should be kept as
far away as possible from
any sources of electromag-
netic radiation such as cables
carrying heavy current, relays
and certain kinds of portable
radio transmitters, etc.
Difficult environments could
mean that extra screening
may be necessary to avoid
the interference. It is impor-
tant to connect the 0V lines
as shown above. The multi-
core cable should have at
least two screens to sepa-
rate the demand signal and
monitor output from the
power lines. The enable line
to pin C should be outside
the screen which contains
the demand signal cables.
17
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Application
Data
Fluid Cleanliness
Proper fluid condition is essential for long and satisfactory
life of hydraulic components and systems. Hydraulic fluid
must have the correct balance of cleanliness, materials and
additives for protection against wear of components, elevat-
ed viscosity and inclusion of air.
Recommendations on contamination control methods
and the selection of products to control fluid condition
are included in Vickers publication 9132 or 561,“Vickers
Guide to Systemic Contamination Control”. The book also
includes information on the Vickers concept of “ProActive
Maintenance”. The following recommendations are based
on ISO cleanliness levels at 2 µm,5 µm and 15 µm
For products in this catalog the recommended levels are:
0 to 70 bar (1000 psi) – 18/16/13
70 + bar (1000 + psi) – 17/15/12
Vickers products, as any components, will operate with
apparent satisfaction in fluids with higher cleanliness codes
than those described. Other manufacturers will often recom-
mend levels above those specified.
Experience has shown, however, that life of any hydraulic
components is shortened in fluids with higher cleanliness
codes than those listed above. These codes have been
proven to provide a long trouble-free service life for the
products shown, regardless of the manufacturer.
Hydraulic Fluids
Materials and seals used in these valves are compatible
with antiwear hydraulic oils, and non-alkyl-based phosphate
esters. The extreme operating viscosity range is 500 to 13cSt
(2270 to 70 SUS) but the recommended running
range is 54 to 13 cSt (245 to 70 SUS). For further technical
information about fluids see “Technical Information” leaflet B-
920 or I-286S.
Installation
The proportional valves in this catalog can be mounted in any
attitude, but it may be necessary in certain demanding appli-
cations, to ensure that the solenoids are kept full of hydraulic
fluid. Good installation practice dictates that the tank port
and any drain port are piped so as to keep the valves full of
fluid once the system start-up has been completed.
Extension Cable
Extension Cable: Adapter for extending 7 core cable when
changing from KA to KB valve and existing wiring is not long
enough. Consists of a 7 pin plug, a 7 pin socket and a length
of cable, fully assembled for ease of use Extension Cable
944450
Service Information
The products from this range are preset at the factory for
optimum performance; disassembling critical items would
destroy these settings. It is therefore recommended that
should any mechanical or electronic repair be necessary they
should be returned to the nearest Vickers repair center. The
products will be refurbished as necessary and retested to
specification before return.
Field repair is restricted to the replacement of the seals.
Mounting Bolt Kits
PILOT WITH REDUCER
metric inch
BK464125M BK870017
KBFDG5V-5 MAINSTAGE
metric inch
BKDG01633M BKDG01633
KBFDG5V-7 MAINSTAGE
metric inch
BKDG7858918 BK590724
KBFDG5V-8 MAINSTAGE
metric inch
BKDG8-655M BKDG06-635
KBFDG5V-10 MAINSTAGE
metric inch
BKDG10636M BKDG10636
If not using Vickers recommended bolt kits,
bolts used should be to ISO 898, 12.9 or better.
Seal Kits
PILOT INCLUDING M8 CAP
5986617-001
REDUCER
870739
KBFDG5V-5
Mainstage Complete valve
565143 5986818-001
KBFDG5V-7
Mainstage Complete valve
565144 5986819-001
KBFDG5V-8
Mainstage Complete valve
5986821-001 5986820-001
KBFDG5V-10 MAINSTAGE
Mainstage Complete valve
02-441686 02-441691
Electrical Connection
7-PIN CONNECTOR
metal plastic
934939 694534
(metal connector must be used for full
EMC protection)
▲Note:
An alternative metal connec-
tor which gives EMC protec-
tion but not IP67 rating is
available from ITT-Cannon,
part number CA06-COM-E-
14S-A7-S.
18
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
Released
Model Codes
02-412178 KBFDG5V-5-2C100N-EX-M1-C1-PE7-H1-10
02-412130 KBFDG5V-5-2C70N45-EX-M1-PE7-H1-10
02-359613 KBFDG5V-5-2C70N45-X-M1-PE7-H1-10
02-411449 KBHDG5V-5-2C100N-EX-PH7-H4-10
02-412113 KBFDG5V-5-2C70N45-X-M2-PC7-H1-10
02-412114 KBFDG5V-5-2C95N-EX-M1-PE7-H1-10
02-412116 KBFDG5V-5-2C95N-X-M1-PE7-H1-10
02-412154 KBFDG5V-5-2C95N-X-M2-PE7-H1-10
02-412138 KBFDG5V-5-33C60N40-EX-M1-PE7-H1-10
02-412142 KBFDG5V-5-33C60N40-X-M1-PE7-H1-10
02-412131 KBFDG5V-5-33C80N-EX-M1-PE7-H1-10
02-412171 KBFDG5V-5-33C80N-EX-M2-PE7-H1-10
02-412163 KBFDG5V-5-33C80N-EX-M2-PH7-H1-10
02-412164 KBFDG5V-5-33C80N-X-M1-PC7-H1-10
02-412115 KBFDG5V-5-33C80N-X-M1-PE7-H1-10
02-412160 KBFDG5V-5-33C80N-X-M2-PE7-H1-10
02-412128 KBFDG5V-7-2C150N85-EX-M1-PE7-H1-10
02-412143 KBFDG5V-7-2C150N85-X-M1-PE7-H1-10
02-412124 KBFDG5V-7-2C150N85-X-M2-PC7-H1-10
02-412125 KBFDG5V-7-2C200N-EX-M1-PE7-H1-10
02-412152 KBFDG5V-7-2C200N-EX-M2-PE7-H1-10
02-412167 KBFDG5V-7-2C200N-X-M1-PC7-H1-10
02-412127 KBFDG5V-7-2C200N-X-M1-PE7-H1-10
02-412153 KBFDG5V-7-2C200N-X-M2-PE7-H1-10
02-412175 KBFDG5V-7-2C200N-X-M2-PH7-H1-10
02-412169 KBFDG5V-7-33C130N65-EX-M1-PC7-H1-10
02-412139 KBFDG5V-7-33C130N65-EX-M1-PE7-H1-10
02-412159 KBFDG5V-7-33C130N65-EX-M2-PE7-H1-10
02-412170 KBFDG5V-7-33C130N65-X-M1-PC7-H1-10
02-412151 KBFDG5V-7-33C130N65-X-M1-PE7-H1-10
02-412166 KBFDG5V-7-33C160N-EX-M1-PC7-H1-10
02-412132 KBFDG5V-7-33C160N-EX-M1-PE7-H1-10
02-412156 KBFDG5V-7-33C160N-EX-M2-PE7-H1-10
02-412162 KBFDG5V-7-33C160N-EX-M2-PH7-H1-10
02-412126 KBFDG5V-7-33C160N-X-M1-PE7-H1-10
02-412155 KBFDG5V-7-33C160N-X-M2-PE7-H1-10
02-412118 KBFDG5V-8-133C375N250-EX-M1-PC7-H1-10
02-412168 KBFDG5V-8-2C375N-EX-M1-PC7-H1-10
02-412137 KBFDG5V-8-2C375N-EX-M1-PE7-H1-10
04-412121 KBFDG5V-8-2C375N-X-M1-PE7-H1-10
02-412173 KBFDG5V-8-2C375N-X-M2-PC7-H1-10
02-412158 KBFDG5V-8-2C375N-X-M2-PE7-H1-10
02-412165 KBFDG5V-8-2C375N250-EX-M1-PC7-H1-10
02-412140 KBFDG5V-8-2C375N250-EX-M1-PE7-H1-10
02-412119 KBFDG5V-8-2C375N250-EX-M2-PC7-H1-10
02-412120 KBFDG5V-8-33C375N-EX-M1-PE7-H1-10
02-412136 KBFDG5V-8-33C375N-EX-M2-PE7-H1-10
02-412133 KBFDG5V-8-33C375N-X-M1-PE7-H1-10
02-412157 KBFDG5V-8-33C375N-X-M2-PE7-H1-10
02-412161 KBFDG5V-8-33C375N-X-M2-PH7-H1-10
02-412141 KBFDG5V-8-33C375N250-EX-M1-PE7-H1-10
02-412144 KBFDG5V-8-33C375N250-X-M1-PE7-H1-10
5992990-001 KBFDG5V-10-2C700N-EX-M1-PC7-H1-10
5992991-002 KBFDG5V-10-33700N-EX-M1-PC7-H1-10
5992992-002 KBFDG5V-10-2C700N420-X-M1-PC7-H1-10
5992993-002 KBFDG5V-10-33C700N420-X-M1-PC7-H1-10
5992994-002 KBFDG5V-10-12C700N420-X-M2-PC7-H1-10
5992995-002 KBFDG5V-10-133C700N420-X-M2-PC7-H1-10
5992996-002 KBFDG5V-10-72C700N420-EX-M1-PE7-H1-10
5992997-002 KBFDG5V-10-733C700N420-EX-M1-PE7-H1-10
02-412483 KBFDG5V-10-2C700N420-EX-M1-PE7-H1-10
02-412484 KBFDG5V-10-33C700N420-EX-M1-PE7-H1-10
ASSEMBLY
NUMBER MODEL CODE
ASSEMBLY
NUMBER MODEL CODE
Size D05/NG10 Size D08/NG25
Size D10/NG32
ASSEMBLY
NUMBER MODEL CODE
ASSEMBLY
NUMBER MODEL CODE
Size D07/NG25
19
EATON Vickers Proportional Two-Stage Directional Valves KBFDG5V-5/7/8/10 V-VLDI-MC003-E2 February 2010
©2010 Eaton Corporation
All Rights Reserved
Printed in USA
Document No. V-VLDI-MC003-E2
Supersedes V-VLDI-MC003-E1
February 2010
Eaton
Hydraulics Operations USA
14615 Lone Oak Road
Eden Prairie, MN 55344
USA
Tel: 952-937-9800
Fax: 952-294-7722
www.eaton.com/hydraulics
Eaton
Hydraulics Operations Europe
Route de la Longeraie 7
1110 Morges
Switzerland
Tel: +41 (0) 21 811 4600
Fax: +41 (0) 21 811 4601
Eaton
Hydraulics Operations Asia Pacific
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300 Huaihai Zhong Road
Shanghai 200021
China
Tel: 86-21-6387-9988
Fax: 86-21-6335-3912
