Key Manufacturers We Carry
- ITT Fabri-Valve
- Orbinox
What is a knife gate valve used for?
A knife gate valve is used for on/off isolation in pipelines carrying slurry, wastewater, pulp stock, ash, or other solids-laden media. It is designed to cut through suspended solids and fibrous material that would obstruct traditional gate valves.
Can a knife gate valve be used for throttling?
No. Knife gate valves are designed for full open or full closed service. Using them for throttling accelerates seat wear and reduces shutoff performance.
What industries use knife gate valves?
Knife gate valves are widely used in pulp and paper, wastewater treatment, mining, power generation, and chemical processing where solids or abrasive media are present.
What is the difference between a knife gate valve and a gate valve?
A knife gate valve has a thin, sharp-edged blade designed to cut through solids and slurry. A traditional gate valve is intended for clean fluids and can jam or fail in solids service.
When should you use a knife gate valve?
A knife gate valve should be used when isolating flow in systems containing suspended solids, fibrous materials, sludge, or abrasive slurry.
How long do knife gate valves last?
Service life depends on media abrasiveness, pressure, cycling frequency, and seat material selection. Proper application and maintenance significantly extend operational life.
