A Pneumatic Knife Gate Valve is a heavy-duty on-off isolation valve equipped with a pneumatic actuator and sharp-edged knife gate.It is specially engineered for handling slurry,sewage,pulp,granular media,and fluids containing solid particles and fibers.

It uses compressed air to drive the actuator,pushing or pulling the knife gate to realize full opening and full closing.The sharp gate can shear fibers and debris,avoid blockage,and achieve bubble-tight sealing.

Key Features

Strong shearing and anti-clogging performance

The sharp stainless steel gate cuts through impurities and cleans the seat automatically,ideal for dirty medium.

Pneumatic quick operation

Fast open/close speed,suitable for automatic control,remote control and pipeline interlocking systems.

Compact structure&easy maintenance

Lightweight design,simple installation,low failure rate and convenient on-site maintenance.

Excellent sealing performance

Seat options include EPDM,PTFE and rubber material,providing zero leakage for isolation service.

Multiple connection types

Available in wafer,lug and flanged connection to fit different pipeline standards.

Main Parameters

Size:DN50–DN600

Pressure:PN6,PN10,PN16,Class 150

Body material:Ductile iron,cast iron,carbon steel WCB,stainless steel 304/316

Gate material:304/316 stainless steel

Driving mode:Pneumatic single acting/double acting

Application Industries

Wastewater treatment,mining,pulp and paper,chemical industry,power plant,food processing and industrial slurry conveying systems.