Product Overview
Our handwheel manual knife gate valve is a heavy-duty industrial isolation valve engineered for viscous, fibrous, and particle-laden media. Equipped with a blue handwheel and rising stem structure, it delivers straightforward on-site manual operation without air or electric power supply.
The sharp-edged gate blade easily cuts through sludge, pulp fibers and solid particles to prevent medium blockage. Its compact wafer-lug body saves installation space, while bi-directional sealing enables reliable shut-off in both flow directions. Widely adopted in harsh working conditions where slurry, sewage and abrasive media exist, this knife gate valve offers long service life and low maintenance cost.
Key Features
services we offer
Handwheel rising stem design, simple manual control, suitable for no-power field sites
Sharp knife gate blade, effectively cuts fiber, sludge and solid impurities
Bi-directional sealing performance, meets pipeline shut-off requirement from both sides
Lug & wafer dual connection option, flexible for flange mounting
Technical Specification
| Item | Parameter |
|---|---|
| Product Name | Manual Knife Gate Valve |
| Operation | Handwheel Manual, Rising Stem |
| Body Material | Cast Iron / WCB / Stainless Steel CF8 / CF8M |
| Gate Material | Stainless Steel 304 / 316L |
| Seat Seal | EPDM / NBR / PTFE / Metal seat |
| Connection Type | Lug / Wafer |
| Working Pressure | PN6 / PN10 / PN16 |
| Applicable Medium | Slurry, sewage, pulp, mine tailing, wastewater, powder |
| Working Temperature | -20℃ ~ 200℃ |
Application Scenarios
Mining & mineral processing, tailing slurry pipeline
Paper & pulp industry for fiber medium
Municipal wastewater and sewage treatment plant
Power plant ash and slag conveying system
FAQ
Q: What media can the manual knife gate valve handle?
A: It is designed for slurry, sewage, pulp, mine tailings and other medium containing solid particles or fibers. Not recommended for clean gas or thin liquid requiring precise flow regulation.
Q: What is the difference between rising stem and non-rising stem knife gate valve?
A: Rising stem allows visual position check of open/closed status directly from stem movement, which is more convenient for on-site inspection.
Q: Can you provide stainless steel full body version?
A: Yes, CF8 / CF8M stainless steel material is available for corrosive medium.
Q: What is your delivery time?
A: Standard sizes in 2-3 weeks, custom specifications will be confirmed after receiving your requirements.
Q: Can we choose different sealing materials?
A: Multiple seal options including EPDM, NBR, PTFE and metal hard seal for different temperature and medium conditions.
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