Invincible Valves supplies knife gate valves in South Africa, providing reliable flow-isolation solutions for mining, mineral processing, wastewater treatment and demanding industrial applications.
A knife gate valve uses a flat, blade-like gate that moves vertically through the valve body to open or close the flow path. The gate is raised to allow media to pass through the valve and lowered to provide isolation.
Knife gate valves are particularly suited to applications involving slurries, suspended solids, sludge and other challenging process media, where conventional valve designs may be less suitable. The gate’s closing action can help displace or cut through certain soft solids, depending on the valve design and operating conditions.
The illustrated Insamcor knife gate valve features manual handwheel operation, a rising-stem mechanism and a protective frame surrounding the operating assembly. Turning the handwheel raises or lowers the gate, allowing the operator to open or isolate flow through the pipeline.
Industrial knife gate valves are commonly used in mining and mineral processing plants, where slurry handling and dependable pipeline isolation are important operational requirements.
Different knife gate valve configurations, body materials, seat designs and actuation options may be available to accommodate specific industrial applications.
When correctly selected for the pressure, temperature, media and installation requirements, knife gate valves provide a practical solution for industrial on/off flow isolation.
Knife-edge gate design – Uses a vertically moving blade-like gate to open or isolate flow.
Reliable on/off isolation – Provides shut-off for compatible industrial media.
Slurry-handling capability – Suitable valve configurations can accommodate slurries and media containing suspended solids.
Manual handwheel operation – The illustrated model allows straightforward local operation.
Rising-stem mechanism – Converts handwheel rotation into linear gate movement.
Protective operating frame – The pictured model features a frame surrounding the stem and operating assembly.
Compact valve body – Provides an installation option for industrial piping where space is a consideration.
Industrial construction – Designed for demanding process environments within the selected model’s operating limits.
Reduced flow obstruction when open – Suitable designs provide a relatively unobstructed flow path when the gate is fully raised.
Application-specific sealing – Seat and sealing arrangements can be selected for compatible media and service conditions.
Actuation flexibility – Depending on the model, knife gate valves may be available with manual, pneumatic, electric or hydraulic operation.
Versatile industrial applications – Suitable for mining, wastewater treatment and general process isolation where correctly specified.
Mining and mineral processing operations
Slurry transport and handling systems
Water and wastewater treatment plants
Industrial sludge-handling systems
Tailings and mineral processing installations
Chemical and industrial process plants
Pulp and paper processing
Power generation facilities
Industrial effluent treatment
General industrial pipeline isolation
