Knife Gate Valve for Slurry Applications

Knife gate valves are commonly selected where a sharp gate must cut through slurry, pulp, wastewater solids or granular media. Reliable performance depends on matching the gate, body, seat and actuator to the actual solids and line conditions.

Key slurry service inputs

• Slurry type, solids percentage, particle size and abrasiveness.
• Line pressure, pressure differential, temperature and required shut-off performance.
• Bidirectional or unidirectional service requirement.
• Connection standard, installation orientation and available face-to-face space.
• Manual, pneumatic, electric or hydraulic actuation; cycle frequency and fail position.

Why configuration matters

Seat material and gate design affect wear resistance and sealing performance. A pneumatic actuator may suit frequent remote operation, while manual operation can be suitable for low-frequency isolation. Final selection should also consider access for maintenance and the project’s required inspection documentation.