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Replaced Rubber Lined Type Knife Gate Valve

Lixin’s bidirectional heavy-duty slurry valve is designed for slurry applications with a wafer-style face-to-face dimension. The design features twin elastomer seat sleeves and a specially engineered gate to facilitate self-cleaning and prevent media buildup, ensuring reliable bidirectional isolation. With dedicated workshops and superior mold casting capabilities, Lixin is well equipped to meet your knife gate valve requirements.

 

KEY FEATURES:

  • Two-piece valve body.
  • Standard Wafer Design.
  • Integral ultra-thin body structure.
  • Knife gate provides strong shearing force.
  • Face-to-face dimensions follow the short series design, and the lightweight valve body reduces the need for pipe support.
  • Continuous flow path design prevents cavities in the open position, minimizing turbulence and load loss.
  • Full-bore design provides high flow capacity with low pressure drop.
  • Internal flow path design prevents solid accumulation in the seat area.
  • Valve seat consists of two rubber ferrules symmetrically positioned on both sides of the valve body.
  • Ferrules are made of natural rubber with an internal metal core to maintain shape and prevent deformation.
  • Ferrule elasticity ensures permanent contact, preventing solid buildup between valve body components.
  • Wear-resistant design ensures reliable shutoff, and ferrules protect the valve body from abrasion.
  • Ferrules can be replaced from the outside of the valve body without pipeline removal, simplifying maintenance.
  • Standard packing uses a specially designed EPDM V-ring to provide a reliable seal between body and disc, preventing leakage.
  • Grease packing strip assists smooth opening and closing operation.
  • Packing components can be replaced in an easily accessible position without dismantling the valve from the pipeline.
Gate Valve

Applicable standard

Size Range
NPS 2”– 18” / DN50–DN450

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
1.0 MPa, 150 lbs

Directional / Stem Type
Bi-directional
Rising stem

Leakage Level
Soft seat: Zero Leakage

Body Style
Wafer

Disc Material
Stainless Steel
Duplex Steel

Flanged Drilling
ASME B16.5, EN 1092

Seat Material
Soft Seat: NBR, EPDM

Port Type
Full Port

Design Standard
MFR Std.

Test Standard
MFR Std.

Face-to-Face
MFR Std.

Operation
Handwheel, Worm Gear, Electric, Pneumatic.

Application
Power, Mining, Pulp & Paper, Cement, Carbon Black, Chemical.

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.