Square/Rectangular Knife Gate Valve
The Square or Rectangular Knife Gate Valve is specifically engineered for handling slurries, viscous fluids, and media with high solid content. Its flat, rectangular gate provides excellent cutting action, allowing it to slice through thick, abrasive materials while maintaining a tight seal. These valves are widely used in mining, pulp & paper, wastewater treatment, and chemical processing industries.
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Technical Specifications
| Specification | Details |
|---|---|
| Valve Type | Square / Rectangular Knife Gate Valve |
| Sizes | 2″ – 48″ (custom sizes available) |
| Pressure Class | PN10, PN16, ANSI 150 – 300 |
| Body Materials | Cast Iron, Carbon Steel, Stainless Steel, Duplex Steel |
| Seat Materials | Resilient, PTFE, Metal |
| Actuation | Manual, Gear, Pneumatic, Hydraulic, Electric |
| Operation | Fully Open / Fully Closed |
| Applications | Slurry, Abrasive Media, Pulp & Paper, Mining, Wastewater |
Key Features
Square / Rectangular Gate: Provides superior cutting through solids and dense media.
Durable Construction: Reinforced body and gate for long service life in harsh conditions.
Multiple Seat Options: Resilient, PTFE, or metal seats for varying operating environments.
Flexible Actuation: Manual, gear-operated, pneumatic, hydraulic, or electric actuation.
Corrosion & Abrasion Resistant: Available in carbon steel, stainless steel, duplex alloys, and custom materials.
Bi-Directional Sealing: Ensures tight shutoff in both flow directions.
Applications
Mining & Mineral Processing: Efficiently handles abrasive slurries and solids.
Pulp & Paper Industry: Suitable for pulp slurry pipelines and stock handling.
Wastewater Treatment: Ideal for sludge, grit, and viscous waste streams.
Chemical Processing: Handles corrosive or viscous fluids with minimal wear.
Benefits
Longer Service Life: Reinforced gate and body resist wear in abrasive media.
Reliable Shutoff: Square or rectangular gate ensures tight sealing.
Smooth Operation: Optional gear or actuator mechanisms reduce operational effort.
Reduced Maintenance: Optional replaceable seat designs allow in-line servicing.
Flexible Installation: Compatible with wafer, lug, or flanged systems.
Ordering & Customization
We offer custom configurations for valve size, pressure rating, body and seat materials, and actuation methods to meet your project requirements.
* We are not just providing simple quotes but experts in selection, calculation, and drawing.
Square / Rectangular Knife Gate Valve – FAQ
A square or rectangular knife gate valve uses a flat, rectangular gate to cut through thick, abrasive, or viscous media. It is designed for reliable flow control in pipelines carrying slurry, sludge, or solids.
The rectangular gate provides a wider cutting edge, making it more effective for dense, solid-laden media. Round port valves are optimized for smoother flow, while rectangular gates excel in abrasive or high-solid applications.
Typical sizes range from 2" to 48", with pressure classes from PN10, PN16, up to ANSI 150–300. Custom sizes and ratings are available upon request.
Common body materials include cast iron, carbon steel, stainless steel, and duplex alloys. Seat options include resilient rubber, PTFE, or metal depending on media type and operating conditions.
Valves can be manually operated, gear-operated, or actuated pneumatically, hydraulically, or electrically for flexibility in different systems.
Yes. The reinforced rectangular gate and durable body design make these valves ideal for abrasive, slurry, or viscous fluids in industries such as mining, pulp & paper, and wastewater treatment.
Provide your project details—size, pressure rating, material, seat type, and actuator preference—and our sales team will provide a tailored quotation, typically within 24 hours. Bulk orders or large projects may qualify for discounts.
