The Non-Rising Stem Knife Gate Valve is a specialized valve designed for handling heavy and abrasive fluids, slurries, and solids in demanding industrial applications. Featuring a non-rising stem design, this valve is ideal for installations with limited space, as the stem does not move upward during operation. The knife gate design allows for efficient cutting through thick and viscous media, making it suitable for industries such as mining, wastewater treatment, pulp and paper, and chemical processing. Its robust construction and reliable performance ensure long-lasting operation in harsh environments.
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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
Features
Wafer lug-type body
Beveled knife on metal or resilient seats
Self-cleaning mechanism
Bi-direction design
Non-rising stem
Pillar type yoke, more room for stem nut
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:
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Non-Rising Stem Design:
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Space-Saving: The stem does not rise during operation, making it ideal for installations with limited vertical space.
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Compact Design: The non-rising stem allows for a more compact valve construction, reducing the overall footprint.
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Knife Gate Mechanism:
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Efficient Cutting: The sharp-edged gate is designed to cut through thick, viscous, and abrasive media, such as slurries, sludge, and solids.
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Minimal Clogging: The knife gate design reduces the risk of clogging, ensuring smooth operation even in challenging applications.
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Robust Construction:
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Durable Materials: Typically constructed from materials such as stainless steel, carbon steel, or cast iron, providing excellent resistance to wear, corrosion, and abrasion.
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Heavy-Duty Design: Built to withstand high-pressure and high-temperature conditions, ensuring reliable performance in harsh environments.
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Bidirectional Sealing:
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Versatility: The valve is designed to provide effective sealing in both flow directions, making it suitable for applications where flow direction may change.
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Manual or Automated Operation:
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Manual Operation: Equipped with a handwheel or lever for easy manual control.
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Automated Operation: Can be fitted with electric, pneumatic, or hydraulic actuators for remote and automated control.
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Resilient or Metal Seats:
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Resilient Seats: Suitable for general-purpose applications, providing a tight seal with minimal leakage.
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Metal Seats: Ideal for high-temperature and high-pressure applications, offering enhanced durability and sealing performance.
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