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Unidirectional Knife Gate Valves


Expert in knife gate valves, Flowrates will provide the finest solutions to your process. Our extensive range of knife gate valves enables our customers to solve problems on site trough our solutions.

They are available in wafer design and can be constructed casted, CNC machined, or welded : only your process and budget will set our limits.

  • Single-piece casted body with internal guides to support the knife

  • Seating wedges help the knife to close against the body and seat

  • Directional arrow on the body showing the correct mounting position

  • High flow rates with low pressure drop

  • Internal design avoids build up of solids that would prevent valve from closing

  • Gate with rounded edges prolongs the working life of the rings and packing

  • Recommended for water with maximum concentration of solid of 5%

Common uses
  • Paper Industry

  • Mining

  • Silo emptying

  • Chemical plants

  • Bumping Food

  • Industry Sewage treatment

Size : DN32/40 to DN1400

Body material : Ductile Iron / Steel / Stailess steel / Duplex

Disc materials : Stailess steels / Duplex.

Seat materials : EPDM / NBR / Silicone / Food approved Silicone / Hypalon / FKM / PTFE

Connection : Between flanges PN10/16 and Class 150 (PN20)

Min Temperature : -20°C

Max Temperature : +180°C

Max Pressure : 10 bars

Wafer type / Lugg type / Flanged

Unidirectional Knife Gate Valves

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