SD-FWG Series
SD-FWG Series
The SDTORK SD-FWG Series Full Turn Worm Gear Box is a heavy-duty mechanical gear unit designed for multi-turn valve applications requiring high torque transmission and precise motion control.
Engineered with a rigid housing structure to absorb high torsional and thrust loads, the FWG Series ensures reliable and smooth operation under demanding industrial conditions.
The enclosure conforms to IP65 protection class with optional IP67 and IP68, making it suitable for harsh outdoor and industrial environments.
The SD-FWG Series can be:
Operated manually using precision handwheels
Combined with SDTORK 3000 Series Electric Actuators
Used in high torque industrial valve automation systems
With output torque ranging from 1200 Nm to 15000 Nm, the FWG Series is ideal for large multi-turn valves and heavy-duty applications.
Technical Overview
Parameter
Type
Full Turn Worm Gear Box
Output Torque Range
1200 Nm to 15000 Nm
Duty
S2 – 15 min (Open/Close Duty) S4 – 25% (Modulating Duty)
Protection Class
IP65 (Standard)
Optional
IP67 / IP68
Ambient Temperature Range
–20°C to +80°C
Mounting Flange
As per EN ISO 5210
Valve Coupling
Type E as per DIN 3210
Standard Rotation
Clockwise input → Clockwise output
Lubrication
Grease filled for life
Color
RAL 5021 (Custom colors available)
Industries Served:
Oil & Gas
Power Plants
Cement Industry
Steel Industry
Water & Wastewater
Chemical & Petrochemical
Key Features
- Rigid high-strength housing design
- Designed to absorb high torsional and axial loads
- Suitable for any mounting position
- Lifetime grease lubrication
- Wide torque range up to 15000 Nm
- Compatible with SDTORK multi-turn actuators
- Special reduction ratios available on request
- Reliable performance in extreme environments
- Engineered for heavy-duty industrial applications
Why Choose ?
- Designed specifically for multi-turn heavy-duty applications
- High torque capability up to 15000 Nm
- Robust and rigid mechanical construction
- Weather-resistant enclosure options
- Weather-resistant enclosure options
- Fully compatible with SDTORK electric actuator combinations
- Proven industrial reliability
Applications
Gate Valves
Sluice Valves
Rising Stem Valves
Heavy Isolation Valves