pneumatic actuator eb-dw, double acting

pneumatic actuator eb-dw, double acting

PNEUMATIC ACTUATOR EB-DW, DOUBLE ACTING
TECHNICAL DATA
Torque:
27–4001 Nm (control air pressure 6 bar)
Final position:
adjustable to +/– 3°
Limit switch and solenoid
valve mounting:
VDI / VDE 3845
Control pressure:
max. 10 bar (EB 4 max. 8 bar)
Control air:
clean and dry air
at circuits 2/min please lubricate
Temperature range:
– 20/+85 °C
Valve interface:
EN ISO 5211
Actuator cylinder:
Aluminium, hard anodized.
Other coatings upon request.
THE ADVANTAGES
- High opening and closing torques caused by scotch-yoke
construction principle
- Very good sliding characteristic by multiple piston guide.
- Operational safety and longservice life caused by the exact machining of actuator cylinder.
The double acting version of this series is available in 9 sizes, constructed to the scotch-yoke principle.
FEATURES
- Maintenance-free, continious lubrication
- Suitability for valves with an angle of 90°
- Blow-proof shaft bearing
- Torques in agreement with EN ISO 5211
- Control pressure min. 2 bar, max. 10 bar
- Good visible elastic position indicator
- Function return by turning the supply plate:
Currentless - close
Currentless - open
- All elements of connection are made of stainless steel
Possibilities of mounting and accesories are shown in chapter 4.3.
GENERAL APPLICATIONS
- Water and wastewater technology
- Shipbuilding
- Swimming pool technology
- Bulk handling
- Pneumatic conveying systems
- Chemical industry
EB-DW
4.1
PNEUMATIC ACTUATOR EB-DW, DOUBLE ACTING
FUNCTION
OPEN
CLOSE
When the left positioned control connection is pressurised, the pistons
are pushed together with the yoke turning counter-clockwise to open
the valve. When the right positioned control connection is pressurised,
the yoke turns clockwise to close the valve.
The stroke of the piston can be limited by the adjustment of the
screws located in the end covers.
TORQUE (Nm)
Type
EB 4
EB 5
EB 6
EB 8
EB 10
EB 12
EB 265
EB 270
EB 280
3 bar
13,5
38
78
125
265
435
647
991
2001
3,5 bar
16
44,5
91
146
309
507
755
1157
2334
4 bar
4,5 bar
18
51
104
166
353
580
863
1322
2667
20
57
117
187
397
652
971
1487
3001
Control air pressure
5 bar
5,5 bar
6 bar
22,5
63
130
208
441
725
1079
1652
3334
25
70
143
229
485
797
1187
1817
3668
6,5 bar
27
76
156
250
530
870
1295
1983
4001
7 bar
29
82
169
271
574
942
1403
2148
4334
7,5 bar
8 bar
34
95
195
312
662
1087
1618
2478
5001
36
101
208
333
706
1160
1726
2643
5335
31,5
89
182
292
618
1015
1510
2313
4668
Subject to change without notice.
Especially non-lubricant media (e.g. bulk goods and dry gases) may
cause an increasement of the actuators torque. This is why we recommend to consider a safety of 12%. Choosing an actuator in critical
limits, please contact our engineers. We offer our service with the
Know-How of 30 years of process engineering to you.
Effective torque in Nm The torques shown in the diagramm are measured values. The required size of the actuator can be established by comparing the values
of the actuator with the required torque of the valve.
0
10
20
30
40
50
60
Turning angle in ° Typical torque curve of a scotch-yoke actuator
70
80
90
PNEUMATIC ACTUATOR EB-DW, DOUBLE ACTING
EB 4 – EB 12
EB 265 – EB 280
ØF
ØF
!G / T = Depth
!G / T = Depth
J
L
L1
J
L2
H2
H
H
H1
H1
K
P
P
ØR
N
Type
EB 4
EB 5
EB 6
EB 8
EB 10
EB 12
EB 265
EB 270
EB 280
F
G
F04
11
F05
11/14
F05/07
14/17
F07/10
17/22
F07/10
17/22
F12
27
F12/16
32/36
F12/16/25* 32/36/46
F12/16/25 32/36/46
N
M5 x 7/9
H
96
108
123
136
155
182
232
278
278
H1
30
30
30
30
30
30
30
30
30
H2
3
4
5
Dimensions [mm]
J
K
L
74
49
158
88
55
174
103
62
208
115
68
250
135
79
312
159
94
367
152
220
220
-
L1
195
145
275
L2
195
270
275
N
80
80
130
130
130
130
80
130
130
M5 x 7/9
P
30
30
30
30
30
30
30
30
30
R
85
100
130
T
14
16
18
22
22
27
60
60
60
Weight
[kg]
1,1
1,7
2,6
4,3
6,8
12,0
21,0
32,0
42,0
* flange accomodation F25 with intermediate
WEIGHTS, CLOSING TIME* AND AIR CONSUMPTION
Type
Weight DW in kg
Closing time DW in sec.
Filling volume NL/Hub at 1 atm:
EB 4
EB 5
EB 6
EB 8
EB 10
EB 12
EB 265
EB 270
EB 280
1,10
0,25
0,16
1,70
0,25
0,44
2,60
0,35
0,99
4,30
0,45
1,13
6,80
0,70
2,11
12,00
1,00
5,10
21,00
<2,5
5,00
32,00
<6,0
14,50
42,00
<5,0
22,20
* = closing times with unthrottled air exhaust and air supply, 6 bar control pressure and 75 % load
air consumption = filling volume x control pressure
Closing times can be adjusted from 30 sec. up to 240 sec. by using the EBRO speed control block.
Subject to change without notice.
PNEUMATIC ACTUATOR EB-DW, DOUBLE ACTING
MATERIAL SPECIFICATION AND PARTS LIST
4
21 D
15 D
21 D
9
10
36
16
13
2
12 D
38
14
8
1
30
2
32 D
14
41
21 D
15 D
33
7
21 D
30
18
22 D
31
33
23 D
37 D
27
6
28
3
39
18
EB4 - EB12 Seperate instructions for use and maintenance are available for EB265 – EB280
COMPONENT PARTS
Pt.
1
2
3
4
6
7
8
9
10
12 D
13
14
15 D
16
Description
Actuator cylinder
Piston
End cover
End cover
Drive shaft
Yoke
Bearing sleeve
Piston bolt
Roller
Circlip
Slide segment
Slide segment
Guide band
Spacer ring
Qty.
1
2
1
1
1
1
1
2
2
1
4
4
2
4
Material
DIN
AI Mg Si 0,5 F22
GD-AI Si9 Cu3
GD-AI Si9 Cu3
GD-AI Si9 Cu3
16 Mn Cr 5/ESP 65
Sint E 30
Polyacetal
16 Mn Cr S 5
16 Mn Cr 5
1.4122
PE-UHMW
PE-UHMW
PTFE-Compound
1.4301
17615
1725
1725
1725
17210
30910
17210
17210
471
988
Pt.
Description
18
21 D
22 D
23 D
27
28
30
31
32 D
33
36
37 D
38
39
Qty.
Hex. socket screw
O-ring
O-ring
O-ring
Stroke adjusting screw
Seal nut
Stop
Valve connection plate
Shaped gasket
Hex. socket screw
Position indicator
Guide band
Pinion washer
Profile
8
4
1
1
2
2
2
1
1
2
1
1
1
1
Material
DIN
1.4301
70 NBR
70 NBR
70 NBR
1.4301
St-galvanized
70 NBR
GD-AI Si9 Cu3
70 NBR
1.4301
EPDM
PTFE-Compound
Polyacetal
1.4301
7500
ISO 1629
ISO 1629
ISO 1629
913
ISO 1629
1725
ISO 1629
912
Subject to change without notice.
REPLACEMENT PARTS
For ordering spare parts, please state actuator size and the required
part no.
The spare parts marked with D are integrated in the standard seal
set. Every component part is - of course - available seperately.
www.ebro-armaturen.com
[email protected]
03.2002 PDF