The WB / WB 11 knife gate valve is specifically designed for water applications. These valves are bi-directional, allowing for flexible installation in pipe systems regardless of the pressure direction. With a full bore and excellent flow characteristics, they are ideal for handling fluids, sludge, and liquids with solids in suspension, such as water, sewage, and biomass.
Nominal Diameter:
WB 11: DN 50 – DN 300
WB: DN 350 – DN 1600
Face-to-Face:
EN 558-1 Series 20
ISO 5752 Series 20
Flange Accommodation:
DN 50 – DN 300:
EN 1092 PN 10
ASME/ANSI B 16.5 Class 150
DN 350 – DN 1600:
EN 1092 PN 10
≥ DN 700: ANSI B16.47 Class 150, Series A
AS 2129 Table D and E
Marking:
EN 19
Tightness Check:
EN 12266 (Leakage Rate A)
ISO 5208 Class A
Temperature Range:
Max. 120 °C
Actuator Options:
Hand wheel
Chain wheel
Pneumatic cylinder
Electric motor
Hydraulic cylinder
Max. Operating Pressure:
DN 50 – DN 300: 10 bar
DN 350 – DN 400: 6 bar
DN 500 – DN 600: 4 bar
DN 700 – DN 1200: 6 bar
DN 1400 – DN 1600: 4 bar
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