CE ANSI DN200 Pn16 Pn25 EPDM Seat Wcb Body Handwheel Manual Type Lug Knife Gate Valve
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Product Details
| Customization: | Available |
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| Media: | Gas, Oil, Water, Steam, Chemical Products |
| Temperature: | High Temperature, Low Temperature and Normal Temp. |
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Basic Info.
- Type
- Straight-through
- Material
- Stainless Steel, Carbon Steel
- Connection Form
- Flange
- Pressure
- Low Pressure
- Actuator
- Manual
- Seal Surface
- Wedge Gate Valve
- Thread Position of Valve Rod
- Inside Gate Valve
- Usage
- Regulation
- Standard
- DIN, JIS, ANSI
- Application
- Industrial Usage, Water Industrial Usage
- Delivery Time
- 15-25 Days
- Transport Package
- Wooden Case
- Specification
- customized
- Trademark
- kamroo
- Origin
- China
- HS Code
- 8481804090
- Production Capacity
- 10000PCS/Year
Product Description
A knife gate valve is a type of valve designed for on-off isolation service in industrial applications where solid slurry or viscous fluid must be controlled. It operates by lifting a gate (typically made of stainless steel or some other durable material) out of the flow path of the fluid. The gate is usually sharp-edged, resembling a knife, which allows it to cut through and push aside any obstructions in the flow.
These valves are often used in industries such as mining, pulp and paper, wastewater treatment, power plants, and chemical processing, where they can handle abrasive and viscous media. Knife gate valves are particularly useful in applications where other types of valves may get clogged or damaged.
Efficient Flow Control: These valves provide a tight shut-off, minimizing leakage and ensuring efficient flow control, especially in applications involving slurries or viscous fluids.
Resilience to Abrasion: Knife gate valves are designed to handle abrasive materials such as slurries, pulp, and powders without getting clogged or damaged. The sharp-edged gate can cut through and push aside solid particles, preventing buildup and blockages.
Bi-Directional Flow: Many knife gate valves are designed to allow flow in either direction, providing flexibility in installation and operation.
Corrosion Resistance: Knife gate valves are available in a variety of materials, including stainless steel and corrosion-resistant alloys, making them suitable for applications where corrosion is a concern.
Knife gate valves operate by using a sharp-edged gate to control the flow of fluid through the valve. Here's how they typically work:
Positioning the Gate: In the closed position, the gate of the valve is positioned at the bottom of the valve body, blocking the flow of fluid through the pipeline. The gate is held in place by guides or guides and is typically operated by a handwheel, lever, pneumatic actuator, or hydraulic actuator.
Opening the Valve: To open the valve, the operator turns the handwheel, activates the lever, or triggers the actuator, which lifts the gate out of the flow path. As the gate is lifted, the fluid can flow freely through the valve.
Flow Control: The sharp-edged gate of the knife gate valve cuts through any solid particles or obstructions in the flow, allowing the fluid to pass without causing blockages. This makes knife gate valves particularly suitable for handling abrasive slurries or viscous fluids.
Closing the Valve: To close the valve, the operator reverses the action by lowering the gate back into the flow path. As the gate descends, it effectively blocks the flow of fluid, providing a tight shut-off.
Sealing: Some knife gate valves incorporate a resilient seat or packing material around the gate to provide a seal when the valve is closed, minimizing leakage.
Bi-Directional Flow: Depending on the design, many knife gate valves allow flow in either direction, providing flexibility in installation and operation.
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