BETTER Drilling Fluid Solution Limited
DOUBLE ACTING PNEUMATIC ACTUATOR AT SERIES
BETTER butterfly valve are combined with AT series double acting pneumatic actuator, which is produced with the latest technology at home and abroad.
Feature
Preloaded coating springs are made from high quality material for resistance to corrosion and longer service life, which can be demounted safely and conveniently to satisfy different requirements of torque by changing numbers of springs.
ISO5211 is suitable for butterfly valve
DIN3337 and NAMUR for pneumatic accessories
Twin rack positions are made from die-casting aluminum rated with hard anodized or made from cast steel with galvanization, symmetric mounting position, long cycle life and fast operation, reversing rotation by simply inverting the pistons
It is has a number of springs inside and will auto return once air is interrupted and it could keep the valve and project safe.
Specification
Air supply pressure: 2.5 to 8 bar
Output torque: 14 to 1170 Nm
Lifespan: 1 million times
Angle of rotation: 90 degrees +/- 4
Shell material: Aluminum alloy steel extruded
Connections: NAMUR, ISO5211, DIN3337
Color: Gray, Black, Blue, Red, Orange
Standard: CE and ISO
Application: filtered, dry compressed air, no-corrosive medium
Ambient temperature: Normal Temperature: -20ºC(-4°F) ~ 80ºC (+176°F); High Temperature: -15ºC(+5°F) ~ 150ºC (+302°F); Low Temperature: -40ºC(-104°F) ~ 80ºC (+176°F)
Lubrication: No lubrication needs for standard type under normal operation condition, but special lubricants should be used under low or high temperature operation conditions.
Working Principle
Double acting and spring return
Material List
|
Item |
Qty. of each |
Part Name |
Standard Material |
|
1 |
1 |
Left Cover |
Alumium Die Casting |
|
2 |
1 |
Right Cover |
Alumium Die Casting |
|
3 |
1 |
Cylinder |
Alumium alloy extruded |
|
4 |
2 |
Piston |
Alumium Die Casting |
|
5 |
1 |
Output Shaft |
Carbon steel |
|
6 |
1 |
Cam adjustment |
Stainless Steel |
|
7 |
2 |
O-ring F/Cover |
NBR |
|
8 |
2 |
O-ring F/Piston |
NBR |
|
9 |
1 |
O-ring (output shaft bottom) |
NBR |
|
10 |
1 |
O-ring (output shaft top) |
NBR |
|
11 |
2 |
O-ring(Adjusting screw) |
NBR |
|
12 |
2 |
Plug (Cylinder) |
NBR |
|
13 |
2 |
Bearing (Piston) |
|
|
14 |
1 |
Bearing( Output shaft at the top) |
Nylon46 |
|
15 |
1 |
Bearing( Output shaft bottom) |
Nylon46 |
|
16 |
1 |
Guide with bearing(Piston Back) |
Nylon46 |
|
17 |
2 |
Thrust bearing(output shaft) |
Nylon46 |
|
18 |
2 |
Gasket(output shaft_ |
NBR |
|
19 |
1 |
Flexible file ring |
NBR |
|
20 |
8 |
Cober Bolt |
Stainless steel |
|
21 |
8 |
Cover gasket |
NBR |
|
22 |
2 |
Gasket |
NBR |
|
23 |
2 |
Nut |
NBR |
|
24 |
2 |
Adjustment bolt |
|
|
25 |
5-16 |
Spring components |
Stainless steel |
|
26 |
1 |
Position indicator |
PPPP+30%GF |
|
27 |
1 |
Screw if indicator |
PPPP+30%GF |
Model\Air Pressure
Air Supply Pressure
(Unit: Bar)
2.5
3
3.5
4
4.5
5
5.5
6
7
8
AT-32D
3.8
4.5
5.3
6.0
6.8
7.5
8.3
9.0
10.5
12.0
AT-50D
8.3
10.0
11.6
13.3
15.0
16.6
18.3
20.0
23.3
26.6
AT-63D
14.6
17.6
20.5
23.4
26.4
29.3
32.2
35.2
41.0
47.0
AT-75D
29.0
35.0
40.7
46.5
52.3
58.1
64.0
69.7
81.4
93.0
AT-88D
45.7
55.0
64.0
73.2
82.3
91.4
101
110
128
146
AT-100D
66.4
79.7
93.0
106
120
133
146
159
186
213
AT-115D
107
129
150
172
193
215
236
258
301
344
AT-125D
138
166
194
221
249
277
304
332
387
443
AT-145D
217
261
304
348
391
434
478
521
608
695
AT-160D
283
340
397
453
510
577
623
680
793
907
AT-190D
533
640
746
853
959
1066
1173
1279
1492
1706
AT-210D
651
781
911
1042
1172
1302
1432
1562
1823
2083
AT-240D
957
1148
1339
1530
1722
1913
2104
2296
2678
3061
AT-270D
1452
1743
2033
2324
2614
2905
3195
3486
4067
4648
AT-300D
1993
2391
2790
3188
3587
3985
4384
4782
5579
6376
