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AT200

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Description

Knife gate valve for instalation betweeen flanges acc. DIN EN 1092-1 and useable as end-valve,with self cleaning plate guidance and flash-out-corners, self adjusting COMPACT-Cross-seal towards the atmosphere, hermetically sealed in both flow-directions, two-piece body, metallic and jitter-free guided knife plate with segment-formed radius, cutting edge on the lower body surface.

DN 50-DN 1200

Approvals

  • 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

Self cleaning effect
is obtained through theflash-out-corners of the body and the cutting edge of the slide plate 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. The segment-formed radius of the knife gate prevents a jamming effect.

Longevity
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 restrictor positions, made possible through the lateral plate guidance

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

Application range

Applications & Industries

  • Bio gas plants (organic fermentation)
  • 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

Technical data

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

Nominal width
DN 50 – DN 1200

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

Legth:
EN 558 - 1 line 20
DIN 3202 - K1

Max. operting pressures
DN 50 – DN 300: 10 bar
DN 350 – DN 400: 6 bar
DN 450 – DN 800: 4 bar
DN 900: 3 bar
DN 1000: 2,5 bar
DN 1200: 2 bar

Materials

Body:

Material:

Code:

GG 25/EKB-coated

22

Option: GGG 40/EKB-coated

23

 

Gate:

Material:

Code:

Stainless steel 1.4301

63

Stainless steel 1.4571

66

 

Spindle/Piston rod:

Material:

Code:

Stainless steel 1.4021

63

Stainless steel 1.4571

66

 

Sealings:

Material:

Code:

EPDM

E

FPM

V

Ceramic fibre

K

MVQ

S

NBR

B

PTFE

T

           

 

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