This series consists of six models, with transmission ratios ranging from 182:1 to 780:1 and torques from 1500NM to 15000NM.
The input stage is adjustable by 90° and can be operated by handwheel or T-stem. It is usually used for valves in underground pipe networks (such as butterfly valves, ball valves, etc.).
Operation and installation instructions
Connect the lower flange of the gear operating mechanism to the upper flange of the valve, and slide the valve shaft into the hole on the worm gear. Tighten the flange bolts. Turning the handwheel clockwise will close the valve, while turning it counterclockwise will open it. A position indicator and position mark are installed on the top of the gear operating mechanism. Through the position indicator, the position of the switch can be directly observed. The gear operating mechanism is also equipped with mechanical limit screws, which can be adjusted and limited at the switch limit position.
Product Features
Ductile iron housing
Protect the steel input shaft (stainless steel is optional
There are 6 models, with an output up to 15,000 Nm
Ductile iron worm gear
NBR sealing material
It is suitable for working conditions ranging from -20℃ to 120℃
Stroke :0-90°(adjustable within ±5°)
The input shaft and worm are integrated (with higher strength
Customized Options
High temperature up to +200℃
IP68 protection grade
Aluminum bronze worm gear
Low temperature to -46℃
Main Components List
|
Part name |
Material |
|
Handwheel |
Welding handwheel |
|
Input shaft |
Carbon steel |
|
Shell |
Ductile iron |
|
Worm gear |
Carbon steel |
|
Turbine |
Ductile iron |
|
Big cover |
Ductile iron |
|
Signpost |
Cast iron |
Main Technical Parameter
|
Model |
Speed ratio |
Rated inputNm |
Rated outputNm |
Efficiency& |
Maximum valve stem diameter(Max) |
The valve is connected to the flangeISO 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 |