Electric Square/Rectangular Knife Gate Valve
Automated Precision for Bulk Solids Control
The Electric Square/Rectangular Knife Gate Valve is the ultimate solution for automated, remote, and precise flow control of dry bulk materials, powders, granules, and lump solids.
This valve combines the specialized Square/Rectangular Port geometry, which perfectly aligns with hoppers, chutes, and silos, with a high-torque Electric Actuator. The electric drive offers superior benefits over pneumatic or manual options by providing fine positional control (throttling), consistent, measurable closing force, and easy integration into modern Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC). This makes it the ideal choice for continuous or batch process lines across mining, cement, grain, and chemical processing where reliability and accuracy are paramount.
Key Features & Electric Control Advantages
| Feature Category | Technical Detail | Core Operational Benefit |
| Operation Type | Electric Actuator | Provides high thrust and precise modulation, allowing for controlled dosing and filling operations, unlike simple on/off pneumatic valves. |
| Flow Geometry | Square/Rectangular Port | Optimized for bulk solids discharge, it eliminates material bridging and ensures a uniform, unrestricted flow path from non-circular outlets. |
| Design Reliability | High Sealing Force | The electric motor delivers consistent torque to the gate, ensuring a reliable cut-off even when closing into a compacted column of material. |
| System Integration | Remote Control Ready | Features standard signaling (e.g., $4-20\text{mA}$) and discrete limit switch feedback for seamless integration and real-time monitoring within automated plants. |
| Material Handling | Non-Jamming Structure | Designed with flexible operation to avoid material consolidation, capable of handling lumps up to $50\text{mm}$. |
| Space & Safety | Non-Rising Stem Option | Can be configured with a non-rising stem actuator for installations with limited vertical clearance. |
Technical Specifications & Standard Reference
| Classification | Parameter | Standard Specification / Notes |
| Actuation | Type | Electric Actuator (Multi-Turn or Quarter-Turn) |
| Voltage | $220\text{V}/\text{380V}/\text{400V AC}$ (Single or Three Phase) | |
| Design | Body Type | Square/Rectangular Port, Bonnetless Design (Standard) |
| Sealing | Metal Seated or PTFE/Polymer Seal (Optimized for dry powders/granules) | |
| Flow Type | Uni-Directional or Bi-Directional Options | |
| Connection | Type | Flanged or Lugged (Custom bolt patterns available) |
| Standard Size Range | DN $150 \times 150$ up to DN $1200 \times 1200$ (Custom Sizes Available) | |
| Materials | Body Material | Cast Iron (CI), Ductile Iron (DI), or Carbon Steel (CS) |
| Gate Material | SS304 or CS (suitable for bulk solids) | |
| Performance | Operating Pressure | Low Pressure (Typically atmospheric or minor head pressure) |
| Service Media | Powders, Granules, Cement, Ash, Pellets, Mineral Concentrates, Grains. |
Customization and Options
- Enclosure Protection: Available with IP67 or IP68 enclosures for dusty, outdoor, or severe environmental conditions common in bulk handling.
- Modulating Control: We offer actuators with $4-20\text{mA}$ input/output for variable position control, enabling accurate dosing and weighing systems.
- Custom Manufacturing: This valve can be manufactured according to user-specific designs and dimensions to perfectly match your hopper or chute configuration.
Do you need this valve in a specific size, or are you looking for a solution for a particular bulk solid material?
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