Bidirectional Knife Gate Valve Manufacturer in Canada
SVR Global is a leading Bidirectional Knife Gate Valve Manufacturer in Canada, delivering valves engineered for zero-leakage shutoff in both flow directions. These valves are designed with a sharp-edged gate that moves vertically to cut through slurry, wastewater, pulp, and other challenging media, ensuring reliable isolation and smooth operation even under demanding conditions. They are suitable for applications involving abrasive and corrosive fluids, making them an essential choice for mining, pulp & paper, power generation, wastewater treatment, and chemical industries.
Our valves are offered in Cast Iron and Ductile Iron bodies for cost-effective durability, as well as carbon steel and stainless steel options for higher corrosion resistance. Gate materials are available in SS304, SS316, Duplex, Super Duplex, Monel, and Hastelloy, allowing flexibility for different operating environments. The design allows operation through manual handwheel, bevel gear, pneumatic, hydraulic, or electric actuators.
Function & Working
Bidirectional knife gate valves operate by lowering a gate into a resilient or metal seat, ensuring bubble-tight sealing in both directions. This capability makes them highly effective in systems where reverse flow can occur, minimizing downtime and protecting critical processes.
Advantages
Compact wafer and lugged body styles allow easy installation in limited spaces. The replaceable seat and packing system reduces maintenance requirements and extends service life. Multiple actuation options provide flexibility to adapt to manual or automated systems. The robust gate design ensures leak-tight performance even in erosive and high-solid media applications.
Industries
Pulp and Paper
Mining and Mineral Processing
Water and Wastewater Treatment
Power Generation
Oil and Gas Industry
Marine and Offshore
Chemical and Petrochemical
Steel and Cement Plants
Sand and Gravel Systems
General Industry
Components
Body: Cast Iron, Ductile Iron, WCB, CF8/CF8M (SS304/SS316), Duplex, Super Duplex
Gate: SS304, SS316, Duplex, Super Duplex, Monel, Hastelloy, with optional hard-facing
Seat: Resilient sealing with EPDM, NBR, Viton, PTFE or metal-seated designs
Packing: PTFE, Graphite, or hybrid multilayer packing with optional injection system
Actuator: Handwheel, Bevel Gear, Pneumatic, Hydraulic, or Electric
Technical Specifications
Design Standards: MSS-SP-81, ASME B16.5, API 609, ISO
Size Range: DN50 to DN1200 (2” to 48”)
Pressure Ratings: PN10, PN16, Class 150, higher pressure versions up to 20 bar available
End Connections: Wafer, Lugged, Flanged (ASME, DIN, JIS)
Coatings: Fusion bonded epoxy, polyurethane, or custom corrosion protection
