Bidirectional Knife Gate Valve Manufacturer in Canada
A bidirectional knife gate valve is a robust industrial valve designed to provide full isolation in pipelines carrying slurry, viscous fluids, or media containing solids. The knife-like gate slices through solids while providing tight shutoff in both flow directions, making it suitable for challenging process conditions.
SVR Global is a leading Bidirectional Knife Gate Valve Manufacturer and Supplier in Canada, delivering engineered valve solutions for pulp and paper, mining, wastewater, chemical, and industrial utility applications. Our valves are designed for reliable operation, minimal maintenance, and long service life in both standard and severe-service pipelines.
With extensive experience supporting EPC contractors, plant operators, and maintenance teams across Canada, SVR Global supplies bidirectional knife gate valves that meet stringent project specifications and international standards.
What Is a Bidirectional Knife Gate Valve?
A bidirectional knife gate valve is a linear motion valve that uses a sharp-edged gate to cut through solids and seal against seats on both upstream and downstream sides. Unlike traditional gate valves, it is capable of tight shutoff regardless of flow direction, making it ideal for pipelines where backflow prevention or flow reversals are possible. The gate is guided to ensure alignment, reducing wear and leakage, while the compact design allows installation in space-constrained systems.
Bidirectional Knife Gate Valve Applications in Industrial Systems
SVR Global bidirectional knife gate valves are used across a wide range of industrial systems, including:
- Slurry and pulp pipelines in pulp and paper processing
- Mining operations carrying abrasive or coarse solids
- Wastewater treatment plants handling thick sludge
- Chemical processing systems with viscous or solid-laden fluids
- Bulk handling and utility pipelines requiring full bi-directional shutoff
These applications demand valves that can reliably isolate pipelines, handle abrasive media, and maintain performance under high wear conditions.
Types of Bidirectional Knife Gate Valves
SVR Global manufactures and supplies bidirectional knife gate valves in multiple configurations:
Resilient Seated Knife Gate Valves
Designed with elastomer-lined seats for reliable sealing against corrosive or abrasive fluids.
Metal Seated Knife Gate Valves
Used in high-temperature or highly abrasive services where seat wear resistance is critical.
Pneumatic and Electric Actuated Knife Gate Valves
Available for automated operation in remote or high-cycle industrial systems.
Rising Stem and Non-Rising Stem Designs
Accommodate specific installation requirements while ensuring smooth gate movement and alignment.
Industries Served
SVR Global bidirectional knife gate valves are supplied to industrial projects across Canada, including:
- Pulp and paper mills
- Mining and mineral processing plants
- Wastewater treatment and sludge handling facilities
- Chemical processing and utilities
- Bulk material and abrasive slurry pipelines
Bidirectional Knife Gate Valve Materials & Standards
Bidirectional knife gate valves are manufactured with materials selected for durability, corrosion resistance, and abrasion tolerance:
- Carbon steel and stainless steel valve bodies for standard and corrosive service
- Alloy steels for high-temperature or highly abrasive applications
- Elastomer or metal seats to suit media characteristics
- Seals and packing designed for tight bi-directional isolation
All valves comply with international standards including API 609, ISO 9001, and ANSI pressure classes to ensure reliability in demanding industrial applications.
Technical Specifications
- Design Standards: API 609 / ISO 9001
- Face-to-Face: ISO 5752 / EN 558
- Flange Standards: ASME B16.5 / ASME B16.47
- End Connections: Flanged, Wafer, Lug
- Size Range: DN50–DN1200 (2″–48″)
- Pressure Class: ANSI Class 150–300
- Temperature Range: −20 °C to +400 °C
- Actuation: Manual, Pneumatic, Electric
Inspection, Testing & Certification
All SVR Global bidirectional knife gate valves undergo rigorous inspection and testing:
- Hydrostatic shell and seat testing as per API 598
- Visual and dimensional inspection
- Material verification and Positive Material Identification (PMI)
- Non-destructive testing (UT, RT, MT, PT) where applicable
- Functional performance testing for bidirectional sealing
- EN 10204 3.1 / 3.2 material certification
Special Design Features
- Bi-directional sealing for flow reversal protection
- Knife-edge gate to cut through solids and prevent clogging
- Resilient or metal seat options for specific service requirements
- Rising or non-rising stem configurations
- Actuation options for automated or manual operation
- Compact, rugged body construction for high-wear service
Why Choose SVR Global as Your Bidirectional Knife Gate Valve Manufacturer in Canada?
- Engineered-to-order valve solutions
- Support for EPC, replacement, and retrofitting projects
- Compliance with Canadian and international standards
- Complete technical documentation and inspection reports
- Proven performance in severe-service industrial applications
