Bonnet Type Knife Gate Valve
Knife gate valves have a sharp cutting edge designed to handle viscous, heavy liquids or other abrasive media. Their straightforward design and easy-to-operate valve setup make them ideal for wastewater treatment plants, cement plants, and mining facilities. With dedicated workshops and superior mold casting capabilities, LIXIN is sure to meet your knife gate valve needs.
KEY FEATURES:
- One-piece valve body.
- Standard Wafer and Lug Design.
- Knife gate provides strong shearing force.
- Integral ultra-thin body structure.
- The valve ensures high sealing efficiency.
- Ultra-thin, compact, and lightweight design with a clean appearance.
- Easy installation and operation.
- Clip-on connection and short face-to-face length reduce the overall weight of the pipeline system.
- Knife-shaped oblique cut at the bottom of the gate cleanly cuts off the medium and ensures smooth closure without blockage.
- Liftable gate sealing surface scrapes off adhered material and automatically removes debris during operation.
- Wedge-shaped positioning at the bottom of the valve provides sealing force when the valve is closed.
- Valve body and bonnet structure ensure reliable sealing performance.
Applicable standard
Size Range
NPS 2”–80” / DN50–DN2000
Main Material
Carbon steel, Stainless steel, Aluminum Bronze, Duplex Steel (other materials available upon request)
Temperature Rating
Soft Seat: -29 to +180°C
Metal Seat: According to main material
Stem Material
Stainless Steel
Pressure Rating
0.6 MPa, 1.0 MPa, 1.6 MPa, 150 lbs
Directional / Stem Type
Bi-directional
Uni-directional
Rising stem
Leakage Level
Soft seat: Zero Leakage
Body Style
Wafer, Lugged
Disc Material
Stainless Steel
Duplex Steel
Flanged Drilling
ASME B16.5, EN 1092, GOST 33259, BS
Seat Material
Soft Seat: NBR, EPDM, PTFE, Viton
Metal Seat: Same as body
Port Type
Reduced port
V-type port
Design Standard
MSS SP-81, MFR Std.
Test Standard
MSS SP-81, MFR Std.
Face-to-Face
MSS SP-81, MFR Std.
Operation
Handwheel, Worm Gear, Electric, Pneumatic.
Application
Power, Pulp & Paper, Carbon Black, Chemical, Wastewater, Mud.
Note:
The carefully selected materials and modern design make our knife gate valve highly reliable.
If our knife gate valve does not meet your requirements, we can provide custom-made solutions.
