Handwheel operated knife gate valve is a manual flow control device designed for isolating or cutting off media in pipelines, particularly effective in handling slurries, viscous fluids, or abrasive substances. Its key components include a sharp-edged gate (resembling a knife) that slides vertically via a handwheel-driven stem, ensuring a tight seal against the valve body. Constructed from durable materials like stainless steel or cast iron, it features robust sealing elements (e.g., rubber or PTFE) to withstand high-pressure differentials and harsh conditions. Compact and low-maintenance, this valve is widely used in mining, wastewater treatment, chemical processing, and pulp/paper industries, offering reliable shut-off, easy operation, and adaptability to challenging environments.
The movement direction of the Handwheel operated knife gate valve is perpendicular to the fluid direction, and the medium is cut off by the gate. In order to achieve high sealing performance,the O-ring sealing seat can be selected to achieve bidirectional sealing. The knife gate valve has small installation space, not easy to accumulate debris and etc. The knife gate valve should generally be installed vertically in pipeline. It is an ideal sealed valve, especially suitable for adjusting and cut off the pipe in paper industry.
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Product Description |
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Item |
Knife Gate Valve Stainless Steel Wheel Handle Knife Gate Valve ANSI Slurry Knife Gate Valve |
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Size Range |
2"~80", DN50~DN2000 |
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Presssure |
0.6MPa~2.5MPa |
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Temperature |
-38°C~1100°C |
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Connection |
Flanged End, Lug Type, Wafer Type |
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Flange Drilling |
ANSI B16.5, GB/T9113, JB/T79, HG, SH, JIS, DIN, NF, BS |
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Material |
Stainless Steel, WCB |
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Sealing Material |
PTFE, Metal Seated |
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Leakage |
PTFE Grade A (Zero Leakage), Metal Seated Grade D (Liquid 0.1xDN mm³/s) |
Model Number:Knife Gate Valve
Application:General
Temperature of Media:Medium Temperature, t<180°C
Power:Manual, Wheel Handle Gate Valve
Media:Water, Air, Gas, Oil, Liquid
Port Size:2''~80'', DN50~DN2000
Structure:Gate, Gate Valve
Pressure:0.6MPa~2.5MPa
Sealing Material:PTFE, Metal Seated
End Connection:Flange
Certificate:CE, RoHS, ISO9001, TUV
Connection：Flanged End, Lug Type, Wafer Type
Material：Stainless Steel, WCB
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Pressure and Temperature |
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Connection pressure rating |
PN16 |
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Working pressure |
10 bar |
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Test pressure |
Shell: 1.5 times rated pressure, |
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Seat: 1.1 times rated pressure. |
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Working temperature |
-10°C to 80°C (NBR) |
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-10°C to 120°C (EPDM) |
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Suitable fluid |
Slurry, mud, waste water etc. |
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