Knife Edge Gate Valve
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Knife Edge Gate Valve
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A Knife Gate Valve is a linear motion valve primarily designed for on-off service in systems containing slurries, suspended solids, and viscous liquids. Unlike traditional gate valves with a blunt gate, it features a thin, beveled-edge gate that resembles a knife, hence the name. This sharp edge allows the gate to slice through thick media, ensuring a tight seal even when solids are present.
In volumetric applications, the Knife Edge Gate Valve’s ability to fully open and close with minimal obstruction contributes to accurate flow measurement. Unlike other valve types that may create turbulence or pockets where material can accumulate, the unobstructed flow path of a Knife Edge Gate Valve helps ensure that the measured volume accurately reflects the actual material being transferred. This reliability is paramount in processes requiring precise batching, blending, or dosing based on volumetric data.
Features
- Sharp-Edged Gate
- Full Bore Design
- Tight Shut-of
- Self-Cleaning Action
- Suitable for Viscous Fluids and Slurries
- Actuation Options
Applications
- Wastewater Treatment Plants
- Pulp and Paper Industries
- Food Processing
- Mining and Mineral Processing
- Pharmaceutical and Biotechnology
- Chemical Processing
Specifications
| Valve Type | Knife Edge Gate Valve |
| Connection Type | Flanged (ANSI B16.5) |
| Size | 2-inch (DN50) (nominal) |
| Body Material | Carbon Steel (A216 WCB) |
| Disc Material | Stainless Steel 316 (1.4404) |
| Pressure Rating | 600 psi (41.4 bar) @ 100°F (38°C) |
| Temperature Range | -20°F to 400°F (-29°C to 204°C) |
| Flow Coefficient (Cv) | 1.25 (Example) - depends on valve trim and fluid properties |
| Leakage Class | Class II (leakage rate 0 gpm at 150 psig) |
