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STAFSJÖ WB11/WB

Stafsjö knife gate valve WB11 is delivered in the dimensions DN50 - DN300.

Stafsjö knife gate valve WB is delivered in the dimensions DN350 - DN1200.

Both WB11 and WB can be delivered with either hand wheel, pneumatic, hydraulic cylinder or electric actuator. Pneumatic is also available as a single-acting actuator (spring open or close) or solution with accumulator tank for Fail Safe solution.

It is a bi-directional knife gate valve that is available in ductile iron. Often used in water treatment and waste water treatment plants, as well as sludge treatment.
 
Contact us for more information about these variants.
Properties
  • Bi-directional
  • Full bore
  • Non-rising stem
  • Wafer execution
  • Integrated flange sealing
  • Can be delivered with pneumatic cylinder, electric actuator or hydraulic actuator
Applications
  • Water treatment
  • Waste water treatment
  • Sludge treatment
  • Bio mass
  • Fish handling
Technical data
  • Leakage rate acc. to EN 12266, rate A
  • Construction length acc. to EN 558-1, series 20
  • Flange connection acc. to DIN EN 1092 
Technical documentation
  • PED 97/23/EC
  • ATEX 2014/34/EU Group II on request
  • Certificate EN 10204-3.1 on request
Technical table
Body:

WB11: Nodular iron GGG50 (EN JS-1050), epoxy coated

WB: Nodular iron EN 5.3105, epoxy coated
Gate: Stainless steel AISI 304 (stainless steel AISI 316 on request)
Seat: NBR, EPDM or FEPM (Aflas)
Gland packing: TwinPack
Corrosion protection: Epoxy, RAL 5015, corrosion class C3 (other thicknesses on request)
NBR seat, mounted with hand wheel
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08410110 50 10, 16 10 43 Hand wheel w / ball
08410111 65 10, 16 10 46 Hand wheel w / ball
08410112 80 10, 16 10 46 Hand wheel w / ball
08410113 100 10, 16 10 52 Hand wheel w / ball
08410114 125 10, 16 10 56 Hand wheel w / ball
08410115 150 10, 16 10 56 Hand wheel w / ball
08410116 200 10 10 60 Hand wheel w / ball
08410117 250 10 10 68 Hand wheel w / ball
08410118 300 10 10 78 Hand wheel w / ball
08410119 350 10 6 80 Hand wheel w / ball
08410120 400 10 6 80 Hand wheel w / ball
08410122 500 10 4 90 Hand wheel w / ball
08410123 600 10 4 100 Hand wheel w / ball
EPDM seat, mounted with hand wheel
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08410010 50 10, 16 10 43 Hand wheel w / ball
08410011 65 10, 16 10 46 Hand wheel w / ball
08410012 80 10, 16 10 46 Hand wheel w / ball
08410013 100 10, 16 10 52 Hand wheel w / ball
08410014 125 10, 16 10 56 Hand wheel w / ball
08410015 150 10, 16 10 56 Hand wheel w / ball
08410016 200 10 10 60 Hand wheel w / ball
08410017 250 10 10 68 Hand wheel w / ball
08410018 300 10 10 78 Hand wheel w / ball
08410019 350 10 6 80 Hand wheel w / ball
08410020 400 10 6 80 Hand wheel w / ball
08410022 500 10 4 90 Hand wheel w / ball
08410023 600 10 4 100 Hand wheel w / ball
NBR seat, mounted with SC cylinder w/magnet piston
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08413110 50 10, 16 10 43 SC 100
08413111 65 10, 16 10 46 SC 100
08413112 80 10, 16 10 46 SC 100
08413113 100 10, 16 10 52 SC 100
08413114 125 10, 16 10 56 SC 100
08413115 150 10, 16 10 56 SC 125
08413116 200 10 10 60 SC 160
08413117 250 10 10 68 SC 160
08413118 300 10 10 78 SC 160
08413119 350 10 6 80 SC 200
08413120 400 10 6 80 SC 200
08413122 500 10 4 90 SC 200
08413123 600 10 4 100 SC 250
EPDM seat, mounted with SC cylinder w/magnet piston
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08413010 50 10, 16 10 43 SC 100
08413011 65 10, 16 10 46 SC 100
08413012 80 10, 16 10 46 SC 100
08413013 100 10, 16 10 52 SC 100
08413014 125 10, 16 10 56 SC 100
08413015 150 10, 16 10 56 SC 125
08413016 200 10 10 60 SC 160
08413017 250 10 10 68 SC 160
08413018 300 10 10 78 SC 160
08413019 350 10 6 80 SC 200
08413020 400 10 6 80 SC 200
08413022 500 10 4 90 SC 200
08413023 600 10 4 100 SC 250