Wafer Type Knife Gate Valve Description
Wafer knife gate valve is a knife-type gate valve with a clamp connection. Its opening and closing parts are gates with sharp blades. It is specially used to control pipeline systems containing fibers, particles or viscous media (such as pulp, sewage, slag, etc.).
Applications
Environmental protection and municipal administration: wastewater control containing suspended solids in sewage treatment plants.
Mining and power: discharge and cut-off of granular media such as coal slag and ore slurry.
Food and papermaking: pipeline control of high-viscosity fluids such as pulp and sludge.
Wafer Type Knife Gate Valve Specification
|
Name |
Wafer Type Knife Gate Valve |
|
Material |
Stainless steel, Cast Steel |
|
Media |
Water/Steam/Gas/Oil |
|
Size |
DN15-DN1000 |
|
Operating Type: |
Pneumatic |
|
Connection: |
Flange |
|
Max.Temperature: |
425℃ |
|
MOQ |
1PCS |
|
Standard |
GB,API,ASME,DIN,JIS,GOST |
|
Voltage |
AC380V AC220V DC110V DC24V |
|
Application |
Water & Wastewater, Chemical, heating power, Textile,Pharmaceutical, Mining, Boiler and Power Industries |
Performance advantages and limitations
| advantages | limitations |
|---|---|
| Lightweight structure, easy to install and maintain. | Only suitable for full open/full closed operation, flow rate cannot be adjusted |
| Small fluid resistance and low pressure drop | The sealing surface is easily eroded by particles and requires regular maintenance. |
| Strong sealing performance (soft seal has zero leakage, hard seal is resistant to high temperature) | Low nominal pressure (usually ≤PN1.6MPa) |
Wafer Type Knife Gate Valve
Selection suggestions
Media characteristics: For media containing fibers or hard particles, a combination of hard seal + blade gate is preferred.
Working conditions: Metal or ceramic materials are required for high temperature (≤300℃).
Maintenance requirements: For pipelines that are frequently inspected, it is recommended to use a clamp-type connection for quick disassembly.
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