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Lugged Type Knife Gate Valve  

(Handwheel or Handle Operation) 

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, lugged, and semi-lugged design.
  • Knife gate provides strong shearing force.
  • Integral ultra-thin body structure.
  • Compact face-to-face dimensions and a lightweight valve body reduce the need for additional pipe support.
  • During operation, the disc automatically scrapes off adhered media, improving sealing performance.
  • The disc assists in cutting off the medium and discharging residue, ensuring smooth, blockage-free operation.
  • The wedge-type limit stopper provides reliable sealing force.
  • The guide pin ensures accurate alignment and stable disc movement.
  • Suitable for media containing hard particles, soft particles, or fibers.
  • Excellent wear resistance, corrosion resistance, thermal insulation, and a low thermal expansion coefficient.
  • Constructed from high-strength ceramic structural material, offering wear and corrosion resistance two to four times higher than ferroalloy and Monel materials.

Applicable standard

Size Range
NPS 2”–30” / DN50–DN750* (Handle only up to DN600)

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
Non-rising stem

Leakage Level
Soft seat: zero leakage

Body Style
Wafer, lugged, semi-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

Port Type
Reduced port

Full 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, Lever, worm gear, electric, pneumatic.

Application
Power, Mining, Pulp & paper, Cement, Carbon black, Chemical, Wastewater.

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.