Knife gate valve, type 7300

Knife gate valve, type 7300

Technimex concentric butterfly valves are designed and manufactured to have a mix of structural stability, flow efficiency and effective sealing. The valves have a low weight and a compact design. They are provided with replaceable sleeves (optional; vulcanized sleeves) and the body material will fit to the specific fluid for a long operational life. The valves are easy to operate and require little maintenance. Only a quarter turn is needed to fully open or close the valves. Technimex butterfly valves can be operated manual, electrical, pneumatic or hydraulic.


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