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B-Series Bevel Gear Actuators: Solutions for Sluice Gates & Rising Stem Valves
The B-Series is a specialized line of bevel gear actuators designed for multi-turn applications. This design is perfectly optimized for sluice gates and rising stem valves—equipment that requires massive thrust capacity to execute safe and precise opening and closing procedures.
Key Highlights of the B-Series
1. Superior Transmission Efficiency (>90%)
By utilizing high-grade rolling bearings at critical load points, the B-Series achieves an impressive operational efficiency of over 90%. This ensures that operating heavy valves is effortless, energy-efficient, and reduces mechanical wear.
2. Hammer Blow Effect
The integrated Hammer Blow mechanism generates a powerful initial impact force, assisting in dislodging jammed valves or ensuring tighter seating without requiring additional manual effort.
3. Intelligent Design & Simplified Maintenance
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Two-Piece Drive Sleeve: Allows for the quick removal of the drive nut (the component directly interfacing with the valve stem) from the actuator. You can machine or maintain the nut without dismantling the entire unit.
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Ready-to-Use: Featuring a fully sealed construction, the units come pre-lubricated with Extreme Pressure (EP)additive grease, ensuring long-lasting performance immediately upon installation.
4. Flexible Upgrade Capability
The B-Series is not limited to manual operation; it can be easily coupled with renowned electric actuators such as the SMB, JMB, or L120 series to fully automate field valve systems.
Practical Applications
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Irrigation & Water Management: Operating sluice gates and penstocks in dams and pumping stations.
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Energy: Controlling gate and globe valves in thermal and hydroelectric power plants.
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Urban Infrastructure: Tidal control systems and wastewater treatment facilities.
B-Series Technical Specifications (8 Unit Sizes)
| Model | Max Thrust (kN) | Max Torque (N·m) | Gear Ratio | Efficiency | Max Stem Dia. (mm) |
| B-0 | 105 | 640 | 2:1 | 0.9 | 60 |
| B-1 | 200 | 1,150 | 2.5:1 | 0.9 | 73 |
| B-2 | 320 | 2,500 | 3:1 | 0.9 | 86 |
| B-3 | 620 | 5,700 | 3:1 | 0.9 | 127 |
| B-5 | 2,260 | 27,000 | 5:1 | 0.9 | 170 |
| B-7 | 5,000 | 100,000 | 5:1 | 0.9 | 250 |
Why Choose Nippon Gear’s B-Series?
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Extreme Load Range: From the compact B-0 model to the B-7 with a massive 100,000 N·m torque capacity.
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Versatility: Dual input shaft options ensure compatibility with restricted installation spaces.
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Visual Monitoring: Equipped with a local position indicator for on-site valve status verification.