Knife gate valve for installation between flanges as per DIN EN 1092-1,with self cleaning plate guidance and rinse edges, self adjusting COMPACT-Cross-seal towards the atmosphere, hermetically sealed in both flow-directions, two-piece body, metallic and jitter-free guided knife plate, cutting edge on the lower body surface.

DN 50 - DN 300


  • Pressure testing:

DIN 3230, T3 - BA / BO 1, DIN 3230, T3

  • Inspection:

Germanischer Lloyd, Lloyds Veritas

Product advantages

Absolutely maintenance free
the COMPACT-Cross sealing as double sealing ring profile secures the sealing of the knife gate towards outside and can be post-sealed - without operation interruption

is obtained through the rinsing-edges of the body and the cutting edge of the gate and provides free rinsing of the sealing areas before the valve closes.

Excellent sealing
the knife gate closes pressure-tight in both flow directions, the seat sealing is chambered and built-in, slightly pre-tensioned. The metallic and jitter-free guided knife gate is resistant against pressure impacts through lock closing condition

Universally operational
the DOMINO-knife gate is suitable to regulate highly liquid, thick fluid and gasesous media, as well as all transportable solid materials.

No material residue
the cutting edge on the lower body surface largely prevents jamming of material rests on the sealing area

guaranteed through the high finish of the lateral running and seal surface. Easily moveable even after long standstill intervals

Optimal jitter free bearing
of the knife gate in both flow directions and gate positions, made possible through the lateral plate guidance

Variable drive selection
Hand wheel, square, reduction gearbox, pneumatic cylinder, hydraulic cylinder, electro actuators 

Application range

Applications & Industries

  • Chemical plants
  • Sewage plants
  • Waste water treatment plant
  • Ship construction
  • Paper and pulp industry
  • Coal mining, Brown coal strip mining
  • Chemical plants
  • Pumping stations, Storage basin
  • Coal-fired power plant
  • Sugar industry
  • Food industry
  • Bitumen manufacturing and subsequent processing
  • Steel manufacturing industry
  • Silo-Trucks
  • Breweries
  • Bio gas plants (organic fermentation)

DOMINO-Knife Gate Valve Type AT 150

Technical data

Knife gate valve for installation between flanges acc. to DIN EN 1092-1
Useable as end-valve

Nominal width
DN 50 – DN 300

DN 50 – DN 150: PN 10/16
from DN 200: PN 10

Two-piece body
Two asymmetrical halfs of the body with integrated cutting Knife

Temperature range
-30 °C - +200 °C
depending on the seal material

EN 558 - 1 line 20
DIN 3202 - K1

Max. operating pressue:
till DN 150: 10 bar
DN 200 – DN 300: 6 bar


Material: Code:
Stainless steel 1.4408 66
Material: Code:
Stainless steel 1.4571 66
Spindle/Piston rod:
Material: Code:
Stainless steel 1.4021 63
Stainless steel 1.4571 66
Material: Code:
Ceramic fibre K