Owner's Manual for Danfoss models including: KDG5V Proportional Two Stage Valve, KDG5V, Proportional Two Stage Valve, Two Stage Valve, Stage Valve, Valve
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DocumentDocumentTechnical Catalog
Vickers by Danfoss Proportional Two Stage Directional Valves without Electrical Feedback
KDG5V-5-*-10 KDG5V-7-*-20 KDG5V-8-*-20 KDG5V-10-*-11
by Danfoss
BC451469581724en-000102
Introduction
Vickers KDG5V-5/7/8/10 are solenoid operated directional control non-feedback type proportional valves.
Two-stage proportional directional control valves in which the main-stage spool is positioned according to the output from an integrally mounted proportional, solenoid-operated , pressure-reducing valve. Direction of main-spool travel depends upon which of the two solenoids of the pilot valve is energized and the amount of travel is dependent upon the current input to the solenoid.
At any intermediate position of the main spool, a force balance exists between the controlled, reduced pilot pressure acting on the spool end and the opposing centering spring, plus the action of flow forces. There is no electrical feedback of the main-stage spool position.
This range of valves offers effective and economic solutions for applications having repetitive load conditions throughout each operating cycle, e.g. mold closure/opening in plastics molding machinery.
Valve sizes 5,7 & 8 are available with integral amplifiers.
Features and Benefits
D These global products, manufactured to world-class quality standards, are sold and serviced throughout the world.
D These valves open up expanded application opportunities as a cost effective alternative to feedback-type proportional and servo valves.
D Vickers flexible design approach provides a wide variety of matching electronic amplifiers, valve options, and spool ratings.
Typical Section Views
KDG5V-7 shown with "EX" or "X" (With integral pilot pressure reducer)
KDG5V-7 shown without "EX" or "X" (Without integral pilot pressure reducer)
B.2
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.2 Features and benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.2 Typical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.2 Functional Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.4 Model Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.5 Spool Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.7 Operating Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.8 Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.9 Installation Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.13 Mounting Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.16 Electrical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.17 Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B.18
B.3
Functional Symbols
~x:A:1B1vo
XI
P
T
I Y
Simplified symbol KDG5V models (Spool type "2" shown)
! -----------1' ---------
7
I
b
q
I
I''
'------;-----,
I''
i P ,~-7
B
AT
i
L=-- I L
I
I ___L' __
----<iL--- P
-----~,"
---~ B
-=-t-_j'_____________7
~A--:~T ~~-=-----~
:
!
I__ J
!
i
L __
___________________J_ i
X
P
AB T
Y
Typical Schematic Symbol-Size 10
* Internal plug shown, for external pilot
supply (via port X). For internal pilot supply (from port P) plug is not fitted. Port X should be blocked at mounting interface, or otherwise plugged at subplate or manifold block. See "Model Code". ZInternal plug shown, for external pilot drain (via port Y). For internal pilot drain (via port T) plug is not fitted. Port Y should be blocked at mounting interface, or otherwise plugged at subplate or manifold block.
See "Model Code". See also "Pilot Drain Application" notes.
PT
BA
Pilot stage. Solenoids identified "A"/"B" according to "Model Code" designation.
*
AX
P
T
BA
I
I
I
I
I
I
I
I
------'s; --
I _ _J
1
I
I
---©---~
Z
I
P T--~Y!__,_B_J
Typical Schematic Symbol-Sizes 5/7/8
Pressure reducer module, see "Model Code"
Main-stage. Spool type "2C" shown
B.4
Model Codes
KD G5 V 12 345
-* -*********
6
7
-(**) -(T) -(*)
8
9
10
-(V) -M -*******
11 12
13
-1 -1* 14 15
1 Valve Type
Proportional Valve
K
2
Control Type D
Directional Valve
Mounting 3 G
Subplate mounted
Operation
Pilot Operated
4 5
Pressure Rating Pressure rating 350
5 V
bar (5000 psi) on P, A & B ports
6 Mounting interface size (ISO 4401)
5
NFPA D05, CETOP 5
7
NFPA D07, CETOP 7
8
NFPA D08, CETOP 8
10
NFPA D10, CETOP 10
7 Spool type, flow rating and metering See "Functional Symbol" on page 6. p = 5 bar (72 psi) per metering flow path, e.g. B to T.
Symmetric Spools For KDG5V-5 2C90N 33C80N For KDG5V-7
2C230N 33C230N 36C185N For KDG5V-8 2C330N 33C330N For KDG5V-10 2C550N 12C550N 33C550N 133C550N
90 L/min (24 USgpm) 80 L/min (21 USgpm)
230 L/min (61.3 USgpm) 230 L/min (61.3 USgpm) 185 L/min (48.9 USgpm)
330 L/min (87.2 USgpm) 330 L/min (87.2 USgpm)
550 L/min (145 USgpm) 550 L/min (145 USgpm) 550 L/min (145 USgpm) 550 L/min (145 USgpm)
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 KDG5V-5 2C70N45 33C60N35
For KDG5V-7 2C230N140 33C230N140
For KDG5V-8 33C330N200
133C330N200
2C330N200
For KDG5V-10 2C310N550 2C550N310 33C310N550 33C550N310 133C550N310 733C550N310
70 L/min (18.5 USgpm), "A" port flow 45 L/min (12 USgpm), "B" port flow 60 L/min (15.8 USgpm), "A" port flow 35 L/min (9.2 USgpm), "B" port flow
230L/min (61.3 USgpm), "A" port flow 140L/min (37.3 USgpm), "B" port flow 230L/min (61.3 USgpm), "A" port flow 140L/min (37.3 USgpm), "B" port flow
330 L/min (87.2 USgpm), "A" port flow 200 L/min (52.8 USgpm), "B" port flow 330 L/min (87.2 USgpm), "A" port flow 200 L/min (52.8 USgpm), "B" port flow 330 L/min (87.2 USgpm), "A" port flow 200 L/min (52.8 USgpm), "B" port flow
310 L/min (82 USgpm), "A" port flow 550 L/min (145 USgpm), "B" port flow 550 L/min (145 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow 310 L/min (82 USgpm), "A" port flow 550 L/min (145 USgpm), "B" port flow 550 L/min (145 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow 550 L/min (145.3 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow 550 L/min (145.3 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow
B.5
8 Pilot Supply Models without integral, fixed pilot pressure reducer module
E
External pilot supply
Blank
Internal pilot supply
Models with integral, fixed pilot pressure reducer module
X
Internal pilot supply
EX
External pilot supply
For system pressures less than 200 bar (2900 psi) the pilot pressure reducing module is optional. For system pressures above 200 bar (2900 psi) the pilot pressure reducing module must be fitted.
9 Pilot drain T Blank
Internal pilot drain External pilot drain
10 Manual Override
Blank
Plain overrides
H
Water-resistant overrides
Z
No overrides
11 Solenoid identity
V
Solenoid "A" at port A end of pilot
valve, solenoid "B" at B end.
(Energizing "A" gives main-stage
flow from port B; energizing "B"
gives flow from port A): German
practice.
Blank
Solenoid "A" energized for main-stage flow from port A; solenoid "B" energized for main-stage flow from port B: USA ANSI B93./NFPA standard.
12 Heading electrical flag symbol
M
Features and options for pilot
valve
13 Electrical data and connection type
Plug connector type to ISO 4400
(DIN 43650). For coil characteristics see
"Operating Data" table (page B.8):
U-G
For use with amplifier with 12V DC supply
U-GP
For use with 12V power
U-H
For use with amplifier with 24V DC
U-HA
supply For use with 24V power plug
U-HR
For use with 800 mA power supply
14 Pilot drain pressure
1
Standard
(See Pilot Drain Application
Notes, page B.9)
15 Design number, ** series Subject to change. Installation dimensions unaltered for design numbers 10 to 19 respectively. 20 design only for size 7.
B.6
Spool Data
Spool Symbols
Simplified symbols including transient flow conditions {dotted line).
Spool Types and Flow Ratings Symmetric Spools Flow ratings for flow through P-A-8-T at ~p = 5 bar (72 psi) per flow path, e.g. P-A, or B-T. For other pressure drop values see "Flow Gain" curves on page B.10.
Spool type 2C
I~x1:nA~B~~1::~I PT Spool type 7C
AB
~X l½l)f-{11~111 PT
Spool type 12C AB
$fE~*lf~~ PT
Spool code
For KDG5V-5 valves: 2C90N 33C80N
For KDG5V-7 valves: 2C230N 33C230N 36C185N
For KDG5V-8 valves: 2C330N 33C330N
For KDG5V-10 valves: 2C550N 12C550N 33C550N 133C550N
Main stage spool symbol
2C 33C
2C 33C 36C
2C 33C
2C 12C 33C 133C
Flow rating
90 L/min (24 USgpm) 80 L/min (21 USgpm)
230 L/min (61.3 USgpm) 230 L/min (61.3 USgpm) 185 L/min (48.9 USgpm)
330 L/min (87.2 USgpm) 330 L/min (87.2 USgpm)
550 L/min (145 USgpm) 550 L/min (145 USgpm) 550 L/min (145 USgpm) 550 L/min (145 USgpm)
Spool type 33C AB
SpSopoolotlytpyepe333C6C
Spool type 133C, with typical regenerative circuit
p T
Full flow Restricted flow
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-8, or B-T (''B" port flow).
Spool code
Main stage spool symbol
Flow rating
For KDG5V-5 valves: 2C70N45
33C60N40
2C
70 L/min (18.5 USgpm), "A" port flow
45 L/min (12 USgpm), "B" port flow
33C
60 L/min (15.85 USgpm), "A" port flow
40 L/min (10.56 USgpm), "B" port flow
For KDG5V-7 valves: 2C230N140
33C230N140
2C
230L/min (61.3 USgpm), "A" port flow
140 L/min (37.3 USgpm), "B" port flow
33C
230L/min (61.3 USgpm), "A" port flow
140 L/min (37.3 USgpm), "B" port flow
For KDG5V-8 valves: 33C330N200 133C330N200 2C330N200
For KDG5V-10 valves: 2C310N550 2C550N310 33C310N550 33C550N310 133C550N310 733C550N310
33C 133C 2C
2C 2C 33C 33C 133C 7 33C
330 L/min (87.2 USgpm), "A" port flow 200 L/min (52.8 USgpm), "B" port flow 330 L/min (87.2 USgpm), "A" port flow 200 L/min (52.8 USgpm), "B" port flow 330 L/min (87.2 USgpm), "A" port flow 200 L/min (52.8 USgpm), "B" port flow
310 L/min (82 USgpm), "A" port flow 550 L/min (145 USgpm), "B" port flow 550 L/min (145 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow 310 L/min (82 USgpm), "A" port flow 550 L/min (145 USgpm), "B" port flow 550 L/min (145 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow 550 L/min (145.3 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow 550 L/min (145.3 USgpm), "A" port flow 310 L/min (82 USgpm), "B" port flow
B. 7
Operating Data
Data is typical: With fluid at 36 cSt (168 SUS) and 50_C (122_F). Using recommended Vickers by Danfoss amplifier to drive KDG5V models.
KDG5V valves
Installation and Start-up Guidelines
Max. solenoid current Coil type:
U-G U-GP U-H U-HA U-HR
Coil resistance Coil type: U-G U-GP U-H U-HA U-HR
Coil inductance measured at 1000 Hz and 150 mV Coil type:
U-G U-GP U-H U-HA U-HR
Hysteresis Size 5/7/8 Size 10
Repeatability: Size 5/7/8 Size 10
Relative duty factor
Type of electrical protection, with electrical plugs fitted correctly
Electrical connection
Recommended drive amplifier
ML-B-9044
3.5A 3.0A 1.6A 0.94A 0.8A
At 20_C (68_F)
1.65 2.0 7.3 22.1 19.1
2.66 3.1 11.3 34.6 29.9
Max. operating Shift under max. operating
4 mH 6 mH 19 mH 55 mH 51 mH
"4% of rated max. flow Size 5/7/8 <6% of rated max. flow Size 10
<3% 8%
Continuous rating (ED = 100%) IEC 144 Class IP65 ISO 4400 (DIN 43650) Vickers Eurocard type: EEA-PAM-523-A-33
B.8
Performance Characteristics
Data is typical with fluid at 36 cSt (168 SUS) and 50_C (122_F), using Vickers by Danfoss recommended amplifier to drive KDG5V models.
Minimum Pressure For full flow performance pilot pressure w45 bar (650 psi), i.e.: Pressure at port P for internal pilot supply ("X" or omit in model code). Pressure at port X for external pilot supply ("E" or "EX" in model code).
Pilot Drain Application Notes External pilot drain is to recommended configuration. Internal pilot drain is possible where a stable "T" port pressure, not exceeding 8 bar (116 psi), can be guaranteed.
Any pressure surges at the "T" port (drain) will cause the main spool to move and change the valve output. This possibility is eliminated by the use of an external drain.
Maximum Pressures, bar (psi) For models without integral pilot pressure reducer
Model
Pilot Pressure Source
Model code 7
P,A,B
KDG5V-5 KDG5V-7/8 KDG5V-10
External Internal External Internal External Internal
E Omit E Omit E Omit
315 (4500)
200D (2900)
350 (5000)
200D (2900)
350 (5000)
200 (2900)
Ports
T
X
210 (3000)
210 (3000)
350 (5000)
350 (5000)
350 (5000)
350* (5000)
200 (2900)
z
200 (2900)
z
210 (3000)
z
YG
8 (116)
8 (116) 8 (116)
8 (116)
8 (116)
8 (116)
For models with integral pilot pressure reducer
KDG5V-5
External
EX
315 (4500)
Internal
X
KDG5V-7/8
External
EX
Internal
X
KDG5V-10
External
EX
315 (4500)
350 (5000)
315D (4500)
350 (5000)
Internal
X
315 (4500)
210 (3000)
210 (3000)
350 (5000)
350 (5000)
350* (5000)
350 (5000)
315 (4500)
z
315 (4500)
z
315 (4500)
z
8 (116)
8 (116)
8 (116)
8 (116)
8 (116)
8 (116)
zWhen using internal pilot pressure, port X should be plugged at the subplate or manifold face (e.g. manifold not drilled for connection to port X).
D The maximum pressure for ports A and B is: 315 bar (4500 psi) for size 5; 350 bar (5000 psi) for sizes 7, 8 and 10. G See "Pilot Drain Application" note. *Pilot must be externally drained, otherwise "Y" port pressure applies.
B.9
Performance Curves
Flow Gain Flow gain curves at stated values of total valve pressure drop, for flow P-A-B-T, or P-B-A-T.
KDG5V-5-2C90N
USgpm L/min 80 300
KDG5V-5-33C80N USgpm L/min
80 300
100 bar (1450 psi)
60 200
50 bar (725 psi)
60 200
40
100 20
30 bar (435 psi) 20 bar (290 psi)
10 bar (145 psi)
40
100 20
100 bar (1450 psi)
50 bar (725 psi) 30 bar (435 psi) 20 bar (290 psi) 10 bar (145 psi)
Flow rate Flow rate
0
0
20 40 60 80 100
% of demand signal
0 0 20 40 60 80 100 % of demand signal
KDG5V-7-2C230N @ 10 bar (145 psi)
A-T
P-B ""-
:s:
0
u:::
-1 00 -80
Umin
300
I
25 0
I
20 0
I
"'' \
15 0
I
10 0
I
" 50 .......--- I0
-60 -40 -20 0
i..,.-IP'
i,_..,
20 40
% of demand signal
P-A B-T
l/4 1/
~,
60 80 100
KDG5V-7-33C230N @ 10 bar (145 psi)
Umin
--
A-T
I -
P-B
I
A
v,:::
P-A B-T
a,
:s:
u0:::
Iv
A
/4 t1/
V
I
-A Io I
~' I
0,_ i...- 1,./
-100 -80 -60 -40 -20 0 20 40 60 80 100
% of demand signal
KDG5V-7-36C18SN @ 10 bar (145 psi)
Umin
A-T P-B
:::::::
2
:s:
u0:::
-100
30 0
I
25 0
I
20 0
I
, "'I". i,,,. .....
150
I
100
I
'-4. ....... 50 0
/
i,...-...
_i,..-"
-80 -60 -40 -20 0 20 40
% of demand signal
P-A
V V B-T
v V
/
60 80 100
KDGSV-8-2C330N
Umin
800
700
600
2 500 I
400
d'. 300
200
100
0 I
0
-- ---- -
-i.--
20
40
60
80
% of demand signal
- 10 bar (145 psi)
100
KDGSV-8-33C330N
Umin
800
700
600
2 500
400
d'. 300
200
100
0 0
-- ~--- - ....---
L-,..--
- 10 bar (145 psi)
-
20
40
60
80
100
% of demand signal
B.10
Performance Curves
Asymmetric Spools
KDGSV-5-2C70N45 @ 5 bar ti P
Umin
150
125
2 100
;: 75
0
U::: 50
25
0 0
-- -------- / .....
---- t.----"""""
P-A,A-T P-B , B-T
20
40
60
80
100
% of demand signal
KDGSV-5-33C60N35 @ 5 bar ti P
Umin
150
125
2 100
;: 75
0
U:::
50 I
25
0 0
- --- -- --
i----
P-A,A -T
- i-- P-B, B-T
20
40
60
80
100
% of demand signal
KDGSV-7-33C230N140 @ 10 bar (145 psi)
U min
300
I
250
A-T r----
I
200
I
""' ' P-B
r--r---.........
......
150
I
r----1r"--'..-........_F:1::50:IE00 ::k
/ P-A
V
/v .,,,,,. B-T ,_,/
/
V
V
V-V ,,
- -- -
0 _,:::::::i:;---
~ ·---
-1 00 -80 -60 -40 -20 0 20 40 60 80 100
% of demand signal
KDGSV-8-2C330N200 @ 5 bar delta P
Umin
800
700 I
600
2 500 I
;: 400
ct'. 300
200
100
0 I
0
-- --- - P-A
-- - L---
--- - - -~
P-B
20
40
60
80
100
% of demand signal
KDGSV-8-33C330N200 @ 5 bar delta P
Umin
800
700
600
2 500
;: 400
ct'. 300
200 100
0
--- ---- --
--
- -- - P-A P-8
0
20
40
60
80
100
% of demand signal
KDGSV-8-133C330N200 @ 5 bar delta P
L/min
800
700 I 600 I 2 500
;: 400
ct'. 300
200
100 I 0 I
0
-- ----L..--
- -~ i---
c--
- P-A
P-8
20
40
60
80
100
% of demand signal
B.11
Flow rate
KDG5V-10
USgpm L/min
400
1600
300
1200
200
800
100
600
0
200 0
100 bar (1500 psi)
V 50 bar (725 psi)
V V
/ V
/
// / V
20 bar (290 psi)
/v/ / / / I/
/
1/ V
/
/
/
,..-::-::::-,,,,:::::.1/~
10 bar (145 psi)
20 40 60 80 100
% of maximum solenoid current
Power Capacity Envelopes
Flow through P-A-B-T or P-B-A-T
bar
350
300
250
ea.
"O
!':' 200
:,
Ln
> I
Ln
l9
""!':'''
0
a. 150
(1)
..:::
100
I'
00
> I
Ln
> I
Ln
l9
l9
0
0
50
0
0
200
Typical Step Response
Test conditions: No pressure reducer module Flow P-A-B-T Total valve Dp = 10 bar (145 psi) Pilot pressure = 50 bar (725 psi) "Response" = Time, from step
response signal, until output reaches 90% of step change value
Input signal step change
0 to 100% 100% to 0 10% to 90% 90% to 10% 25% to 75% 75% to 25% 90% to 90% 0% to 75% 75% to 0% 0% to 50% 50% to 0% 0% to 25% 25% to 0%
400
600
Flow rate
800
1000 Umin
Subject to maximum pressure limitations according to model type; see "Maximum Pressures".
Spool response times (ms)
KDG5V-5 KDG5V-7
KDG5V-8
KDG5V-10
48
61
38
43
42
58
50
58
30
47
50
58
70
87
80
206
40
182
66
54
49
66
98
170
175
160
160
124
124
B.12
Pilot flow required to achieve above response times:
KDG5V-5
2,7 L/min (0.7 USgpm)
KDG5V-7
4,2 L/min (1.1 USgpm)
KDG5V-8
7,5 L/min (2.0 USgpm)
KDG5V-10
18,75 L/min (5.0 USgpm)
Installation Dimensions
KDG5V Models with "EX" or "X"
(With integral pilot pressure reducer)
The illustration is correct for KDG5V-7 valves
Dimensions are shown in mm (inches)
0
E
e>
4.§.0(1 .81 )
ci g,
0 C.
M 0 LL
@-E} 3rd angle
projection
233.8 9.2
(Max. length of KDG5V-5 model s)
r-
219.3 ~
65.0 2.6 _ _J
For coil removal
-11A.ldQd _(QM)_ for
manual - 1 override
: options
I I I I I I I I I
----
I Cl
i --1--
@!@ I: 13 :I
PORT A
C
j D
E
F
B
"G" dimension is depth of bolt holes.
(On KDG5V-7 only, this coincides with the height to the center line of the main-stage spool).
KDG5V Models with "E" or No Symbol (Without integral pilot pressure reducer)
Model KDG5V-5
KDG5V-7
KDG5V-8
A1
215,0 (8.47)
215,4 (8.48)
255,0 (10.1)
A2
175,0 (6.9)
176,9 (6.9)
215,0 (8.47)
B
70, (2.77)
92 (3.62)
114,8 (4.52)
C
94,4 (3.72)
105 (4.13)
118,4 (4.66)
D
27,0 (1.06)
50,0 (1.97)
77,0 (3.03)
I
I I
I
I I
,I , ,I
I
I I
I
E
98, (3.86)
122,2 (4.8)
185,0 (7.28)
F
217,0 (8.54)
269,0 (10.6)
332,0 (13.1)
G
30,0 (1.18)
33,0 (1.3)
59,0 (2.32)
H
87,3 (3.4)
95,0 (3.7)
127,2 (5.0)
B.13
KDG5V-10 Models with "EX" or "X"
(With integral pilot pressure reducer) Dimensions are shown in mm (inches)
-$--8 3rd angle
projection
76,2 (3.00)
------ 190,5
(7.50)
I
--+-----1 --
79,2 (3.12)
t t 196,8
(7.75)
98,6 (3.88)
~'
1--------------
158,8 (6.25)
194,3 (7.65)
l40,0
(1.57)
I
t 284,5 (11.2) 193,5
@ (7.62)
@ @
_j
------i 196,8
(7.75)
516,9 (20.35)
-85,3
(3.36)
7 125,2 (4.93)
i
.I
B.14
Pilot Supply and Drain Plugs
KDG5V-5 models Viewed from port B end of main-stage
M5 plug, part no. 471119. Remove for internal pilot supply
\Pilot connections PT
M5 plug, part no. 471119. Remove for internal pilot drain
KBDG5V-7 Models Viewed from port A end of main stage
MS plug,
part no. 471119.
Remove for interna l Pilot supp ly
MS plug, part no. 471119. Remove for internal Pilot drain
* Internal plug shown, for external pilot supply (via port X). For internal pilot supply (from port P) plug is not fitted. Port X should be blocked at mounting interface, or otherwise plugged at subplate of manifold block. See "Model Code".
KDG5V-8 models Section through port P of main-stage
M5 plug, part no. 471119. Remove for internal pilot drain
KDG5V-10 models
Plug, part no. 7074. Remove for internal pilot drain
1/16 NPT plug, part no. 113000. Remove for internal pilot supply
P
Plug, part no. 30560 for internal pilot drain, part no. 7074 for external pilot drain.
Plug, part no. 30560. Remove for internal pilot drain
B.15
Views on Mounting Faces
All O-seals supplied
KDG5V-5 mounting face KDG5V-7 mounting face
T
AB T
A
B
X
Y
P
4 holes for mounting bolts Ø 7,02 (0.27Ø ) spotfaced to Ø 11,0 (0.43 Ø)
A
B
Y
T
P
X
6 holes for mounting bolts 4 x Ø 11,0 (0.43 Ø) c'bored Ø 17,5 (0.68 Ø) 2 x Ø 6,4 (0.25 Ø) c'bored Ø 11,0 (0.43 dia)
KDG5V-8 mounting face X T
A
B
P
Y
6 holes for mounting bolts Ø 13,5 (0.53 Ø) spotfaced to Ø 20,0 (0.78 Ø)
KDG5V-10 mounting face
A X
WT
B
P
Y
6 holes for mounting bolts
B.16
Electrical information
Eurocard Power Amplifier
Recommended to use Vickers by Danfoss Eurocard amplifiers with KDG5V valves.
Electrical Block Diagram EEA-PAM-523-A-33
-,
I L_
,.,
MP2
_J
Wiring Connections
Amplifier model 523 for KDG5V-5,7,8,10
t=-='-"-)--+-------------------7 -- I
I £-==-==~----=----=-==171:
I --
I :I I I~
Customer's protective ground connection
B.17
Application Data
Hydraulic fluids and fluid cleanliness
Recommendations on contamination control methods and the selection of products to control fluid condition are included in Hydraulic Fluid Recommendations. 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
Hydraulic fluids
Materials and seals used in these valves are compatible with anti-wear 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 13cSt (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 applications, 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.
Mounting bolt kits
Pilot with reducer
metric
inch
BK464125M BK870017
KDG5V-5 Mainstage
metric
inch
BKDG01633M BKDG01633
KDG5V-7 Mainstage
metric
inch
BKDG7858918 BK590724
KDG5V-8 Mainstage
metric
inch
BKDG8-655M BKDG06-635
KDG5V-10 Mainstage
metric
inch
BKDG10636M BKDG10636
If not using Vickers recommended bolt kits, bolts used should be to ISO 898, 12.9 or better.
Mounting bolt torques
Recommended torques with threads lubricated For KDG5V-5 M6 or 1/4 " -20 UNC bolts: To 210 bar (3000 psi) 14 Nm (10.3 lbf ft) To 315 bar (4500 psi) 20 Nm (14.75 lbf ft) For KDG5V-7 M10 or 3/8" -16 UNC bolts: 49 to 59 Nm (36 to 43 lbf ft) plus M6 or 1/4" -20 UNC bolts: 9 to 14 Nm (6.6 to 10.3 lbf ft) For KDG5V-8 M12 or 1/2"-13 UNC bolts: 103 to 127 Nm (76 to 93 lbf ft) For KDG5V-10 M20 or 3/4"-10 UNC-2B bolts: 185-220 Nm (250-300 lbf ft)
Seal Kits
Pilot including M8 cap 5986617-001
Reducer 870739 KDG5V-5 Mainstage 565143
Complete valve 5986818-001
KDG5V-7 Mainstage 565144
Complete valve 5986819-001
KDG5V-8 Mainstage 5986821-001
Complete valve 5986820-001
KDG5V-10 Mainstage
Mainstage
Complete valve
02-441686
02-441691
Mass (Weight)
Approx. for models with integral pilot pressure reducing module ("X" or "EX"see mode code). KDG5V-5 9,5 kg (21 lb) KDG5V-7 11,8 kg (26.0 lb) KDG5V-8 20,2 kg (44.5 lb) KDG5V10 54,5 kg (120.0 lb) For models without integral pressure reducing module (No symbol, or "E", see model code), deduct 1,2 kg (2.6 lb).
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 Danfoss repair center. The products will be refurbished as necessary and retested to specification before return.
B.18
by Danfoss
Danfoss 14615 Lone Oak Road Eden Prairie, MN 55344-2287 USA Tel: (+1) 952 937-9800 Fax: (+1) 952 974-7722
Danfoss 20 Rosamond Road Footscray Victoria 3011 Australia Tel: (+61) 3 9319 8222 Fax: (+61) 3 9318 5714
© 2023 Danfoss Corporation All Rights Reserved Printed in USA Document No. 5052/EN/1097/A - rev2 Asset ID: BC451469581724en-000102 May 2023
Danfoss 46 New Lane, Havant Hampshire PO9 2NB England Tel: (+44) 23 9248 6451 Fax: (+44) 23 9248 7110
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