A knife gate valve wafer lug type is a specialized valve designed for controlling the flow of fluids, particularly in applications involving slurries, viscous fluids, or systems with high solids content.
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Key Specifications:
Sizes: 2″ – 48″ or DN 50 – DN 1200
Pressure Rating: Class150 or PN6 – PN16
Materials of valve body: WCB, LCB, WC6, CF8, CF3, CF8M, CF3M, 4A, etc.
Operation: Manual, Gear, Pneumatic, hydraulic and Electric actuator
Standards:
Design & Manufacture: MSS SP-61, ASME 16.34
Face to Face: MSS SP-81, ASME B16.10, EN 558
Connection End: ASME B16.5, EN 1092, JIS B2220
Test : MSS SP-81
Key Features:
Beveled knife on metal or resilient seats
Self-cleaning mechanism
Uni-direction design
Rising stem and non-rising stem
Optional bolted bonnet design for non-leakage through packing chamber.
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Design:
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The valve features a thin, sharp-edged gate (knife) that cuts through thick fluids or solids, making it ideal for handling challenging media.
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The wafer lug type design allows the valve to be installed between flanges using bolts, while the lugs provide additional support and alignment during installation.
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Functionality:
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The knife gate moves linearly to open or close the flow path, providing a tight seal even in demanding conditions.
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It is commonly used in industries such as mining, wastewater treatment, pulp and paper, and chemical processing.
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Advantages:
- Compact and lightweight design.
- Excellent for handling abrasive or corrosive fluids.
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Easy to install and maintain.
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Provides a tight shut-off, minimizing leakage.
