TEKO Industry Co., Limited |
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Double Flange Mining Application Bi-Directional Seal Full Port Air Operated Knife Gate Valve
TEKO Slurry Knife Gate Valve is built with fabricated body and features a heavy-duty of stainless steel blade. Removable seats on either side of the blade provide a bi-directional bubble tight seal with no metal parts in contact with the slurry.
Features
Specifications
Body | Fabricated Steel |
Sleeve | Natural rubber standard, Nitrile, Viton, Butyl, Hypalon optional |
Pressure rating | 100psi for DN0 to DN400 |
150psi if 17-4PH blade is used (up to DN350) | |
Blade material | SS316 17-4PH Hastelloy etc |
End connection | ANSI, DIN, JIS, BS etc. |
Material certification | Physical test report can be supplied |
How the slurry knife valve works
Gate positioned above seals
Tight fit between sleeves and the internal sleeve profile contain the line pressure
Metal parts not in contact with slurry
Unobstructed port area eliminates turbulence, minimizes pressure drop across valve
No seal cavity where solids can collect and prevent full gate closure
Closed Position
Gate travels through sleeves to provide blind flange shut off and expel solids, allowing complete closure
100% isolation-bubble tight shut-off results in absolutely zero downstream leakage
Double-seated design provides bi-directional flow and shut-off
Sleeve profile and tight fit between sleeves and gate contains internal pressure
Controlled stroke prevents gate from penetrating too far, minimising stress on sleeve