Gate Valve

The gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid

  • Body
  • Stem
  • Seat
  • Application
  • Pneumatic Cylinder Actuators


Solid, Rugged, Heavy Duty, One-Piece body casting including flanges. Knife Edge Gate Valve design ensures minimum contact between the internal trim parts of valve, Reduce wear & Tear.

Knife Gate:

  • Thicker knife gate to eliminate distortion under maximum differential pressure and to provide tight seating.
  • Precision machined and buffed gate provide long life of seating components and cuts even heavy or high-viscous fluids.
  • Precision finish gate sealing face is lapped to provide the best possible seat tightness.


All valves are provided with a Corrosion Resistance, Stainless Steel stem that assures easy, smooth, long life operation and dependable services. Knife Edge Gate Valve also can supply with stem cover on request for additional protection against dust while the valve is in the open condition.


Integral / Renewable both types of seats are available with Flosteer Knife Edge Gate Valve. For highly abrasive applications we can supply a replaceable seat ring with a hard faced knife surface. Replaceable Seat extends the service life of the valve. Resilient seats can be easily replaced after removing valve from the line without complete dismantling.


Knife Edge Gate Valves are widely used in Pulp & Paper Mill, Thermal Power Plant, Sewage & Water Treatment Plant, Sugar Mill, Chemicals Sledges, Sticky Media and molasses for sledge and viscous media handling, Carbon Black Plant, Cement Plants, Steel Plant, Fly Ash, Gases, Powders etc.

Pneumatic Cylinder Actuators:

ON-OFF Cylinder Actuators:

Flosteer Pneumatic Cylinder Actuators are available with Double Acting / Single Acting and Hydraulic Cylinder with Double Acting for on/off or positioning services. Flosteer manufacturing an extensive range of pneumatic and hydraulic cylinder actuator for the line valve automation requirements. Depending on the application and service condition, Flosteer can supply suitable bore size diameter cylinder actuators. Flosteer cylinder actuators cylinder tube tested at 20 bar and suitable for normal operation with Air Supply up to 8 bar.