Knife gate valve, type 7300

Type 7300 is a bi-directional knife gate valve and is a good choice when used for abrasive fluids such as pulp & paper, waste water, bio mass and mining slurries. Tightness in two directions will be secured with a resilient elastomer seal. The valve can be delivered with rising or non-rising spindle. Actuation is provided with a hand wheel, chain wheel, gearbox, pneumatic- or electrical actuation.

** Please contact us for different sizes and pressures.



Knife gate valve as wafer-type and end-of-line valve at full operating pressure lug type
Shut-off valve for water and waste water up to 50°C
DN50 – 1200, PN10 – 16
Face-to-face length DIN EN 558-1, basic series 20

General information

  • Two piece body
  • Body: ductile iron GGG40-50
  • U-shaped seal: EPDM
  • Knife: stainless steel 1.4301
  • Tight in both flow directions
  • Spindle: stainless steel 1.4021
  • Flange connection dimensions to EN1092, PN10 or PN16
  • Operating pressure:
    • DN50 – DN600, 8 bar
    • DN700 – DN800, 6 bar
    • DN900 – DN1000, 4 bar
    • DN1200, 2 bar
  • Operation with hand wheel
  • Test standard according to EN12266-1
  • Certificate EN 10204 3.1

Corrosion protection:

  • Inside and outside epoxy-coated, coating thickness >250 µm, blue RAL 5010

Additional information


Operating pressure

8 bar (DN50 – 600), 6 bar (DN700 – 800), 4 bar (DN900 – 1000), 2 bar (DN1200)

Flange connection


Face to face length

EN 558-1/20

Test standard

EN 12266-1


Datasheets (PDF)

Type 7300 knife gate valve datasheet
AUMA actuator selection table
Pneumatic actuator selection table
Type 7300 knife gate valve tender text

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