Underground Pipe Valve Gearbox Buried Applications
Underground Pipe Valve Gearbox Buried Applications
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.
? Ductile iron?housing
? Protected steel input shaft (stainless steel optional)
? 6 models up to 15000 Nm output
? Rugged construction
? Ductile iron worm gear
? NBR sealing materials
? Suitable for -20℃?~ 120℃?working conditions
? Stroke: 0 - 90° (± 5° adjustable)
? Input shaft and worm are integrated （higher strength）
? High temperature to +200 °C
? IP68 grade protection
? Aluminum-bronze worm gear
? Low temperature to -46 °C
Main Components List
|
Part name |
Material |
|
Hand wheel |
Welded hand-wheel |
|
Input shaft |
Protected Steel |
|
Housing |
Ductile iron |
|
Worm |
Carbon Steel |
|
Worm gear/ Quadrant |
Ductile Iron |
|
Cover |
Ductile iron |
|
Indieator |
Cast Iron |
Main Technical Parameter
|
Model |
Gear ratio |
Rating input(Nm) |
Rating output(Nm) |
Efficiency?% |
Valve stem（Max） |
Valve connection ISO 5211 |
|
SDQ3 |
182:1 |
50 |
1500 |
16.5 |
??38 |
F10/F12 |
|
SDQ4 |
272:1 |
60 |
2500 |
15.3 |
??38 |
F14 |
|
SDQ5 |
352:1 |
85 |
5000 |
16.7 |
??60 |
F16 |
|
SDQ6 |
416:1 |
115 |
7500 |
15.7 |
??85 |
F25 |
|
SDQ7 |
502:1 |
120 |
9500 |
16 |
??100 |
F25 |
|
SDQ8 |
780:1 |
115 |
15000 |
16.7 |
??125 |
F30/F35 |
