Cast iron Quarter-Turn Gear Operator
Connect the bottom flange of the gear operator to the upper flange of the valve and slide the valve shaft into the hole on the worm gear. Tighten the flange bolt. The valve can be closed by turning the hand-wheel clockwise and opened by turning the hand-wheel counterclockwise. On the upper face of the gear operator, a position indicator and a position marking are mounted, through which the position of switch can be directly observed. The gear operator is also equipped with a mechanical limit screw, which can be adjusted and function to limit the position at the switch extreme position.
▪ Cast iron housing (ductile iron optional)
▪ Protected steel input shaft (stainless steel optional)
▪ 15 models up to 150000 Nm output
▪ Rugged construction
▪ Ductile iron worm gear
▪ NBR sealing materials
▪ Suitable for -20℃ ~ 120℃ working conditions
▪ Stroke: 0 – 90° (± 5° adjustable)
▪ Designed with a lock mechanism
▪ Limit switches
▪ High temperature to +200 °C
▪ IP68 grade protection
▪ Aluminum-bronze worm gear
▪ Low temperature to -46 °C
▪ Interlock safety system
▪ Oxygen and food grade grease applications
Main Components List
|
Part name |
Material |
Options |
|
Hand wheel |
Welded hand-wheel |
|
|
Gearbox Housing |
Cast Iron |
Ductile iron |
|
Cover |
Cast Iron |
Ductile iron |
|
Input shaft |
Protected Steel |
|
|
Worm |
Carbon Steel |
|
|
Worm gear/ Quadrant |
Ductile Iron |
|
|
Position indicator |
Cast Iron |
Ductile iron |
Main Technical Parameter
|
Model |
ratio |
Rating input(Nm) |
Rating output(Nm) |
Efficiency(%) |
Mechanical advantage |
|
S007 |
42:1 |
80 |
720 |
21% |
9.0 |
|
S008 |
50:1 |
110 |
1200 |
22% |
10.9 |
|
S108 |
72:1 |
130 |
2000 |
21% |
15.4 |
|
S158 |
70:1 |
150 |
2500 |
24% |
16.7 |
|
S208 |
68:1 |
210 |
3300 |
23% |
15.7 |
|
S218 |
78:1 |
206 |
4475 |
28% |
21.7 |
|
S238 |
175:1 |
170 |
6250 |
21% |
36.8 |
|
S308 |
275:1 |
150 |
9800 |
24% |
65.3 |
|
S358 |
532:1 |
170 |
18000 |
20% |
105.9 |
|
S408 |
700:1 |
190 |
32000 |
24% |
168.4 |
|
S448 |
1233:1 |
165 |
42000 |
21% |
254.5 |
|
S508 |
1254:1 |
190 |
60000 |
25% |
315.8 |
|
S608 |
1855:1 |
190 |
80000 |
23% |
421.1 |
|
S708 |
2292:1 |
190 |
100000 |
23% |
526.3 |
|
S808 |
3525:1 |
190 |
150000 |
22% |
789.5 |
