SG Series
SG Series
The SDTORK SD-SG Series Multi-Turn Spur Gear Box is engineered for high-performance valve operation in demanding industrial environments.
Designed specifically for gate, globe, angle, sluice, and penstock valves, the SG Series delivers reliable torque transmission and smooth multi-turn actuation for heavy-duty applications.
The rigid housing construction is developed to absorb high torsional and thrust loads, ensuring mechanical stability and long service life. All gear boxes are grease-filled for lifetime lubrication and conform to IP65 protection standards, with optional IP67 and IP68 enclosures available.
The SD-SG Series can be:
Operated manually using heavy-duty handwheels
Combined with SDTORK 3000 Series Electric Actuators
Integrated into complete valve automation systems
With an output torque range from 120 Nm to 18,500 Nm, the SG Series provides a robust and flexible solution for multi-turn valve automation.
Technical Overview
Parameter
Type
Multi-Turn Spur Gear Box
Output Torque Range
120 Nm to 18,500 Nm
Reduction Ratios Available
2.75:1 up to 25.5:1
Duty
S2 – S4 25% (Open/Close Duty)/ (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 Options
A, B, C, D (DIN 3210) A, B1, B2, B3, B4 (EN ISO 5210)
Standard Rotation
Clockwise input → Clockwise output
Lubrication
Grease filled for life
Color
RAL 5021 (Custom colors available)
Industries Served:
Power Plants
Water & Wastewater Treatment
Steel Industry
Cement Industry
Oil & Gas
Chemical Processing Plants
Key Features
- Heavy-duty rigid housing design
- Designed to withstand high torsional and axial loads
- Suitable for any mounting position
- Lifetime grease lubrication
- Wide reduction ratio selection
- Compatible with SDTORK 3000 Series actuators
- Precision-machined spur gear mechanism
- Reliable multi-turn performance
- Designed for severe industrial environments
Why Choose ?
- Wide torque and reduction ratio selection
- ISO 5210 compliant mounting
- ISO 5210 compliant mounting
- Compatible with electric actuator combinations
- Engineered for heavy-duty multi-turn applications
- Proven industrial performance
- Reliable, durable, and low maintenance
Applications
Gate Valves
Globe Valves
Angle Valves
Sluice Valves
Penstock Valves