WB11, WB12, WB14 KGV
World leader in Knife Gate Valves, highest Quality, made in Sweden.
Stafsjö Series - WB11 & WB14 Bi Directional Knife Gate Valves
Stafsjö's WB knife gate valve is bi-directional and can, therefore, be installed in a pipe system independent of pressure direction. The valve has a full bore with no cavity which gives excellent flow characteristics and this makes it suitable for fluids, sludge and liquids with solids in suspensions such as water, wastewater and biomass. WB has a coated valve body in cast iron or nodular iron, which has integrated flange gaskets up to DN 600.
The valve is equipped with a gate in stainless steel and a sealing profile in Nitrile or EPDM which is reinforced with a steel core. The gland box is equipped with Stafsjö’s box packing TwinPack™, to secure that no media reaches the surrounding environment.
The WB valve is modular designed and it can easily be supplied with different types of actuators and accessories. The WB valve is designed, manufactured, inspected and tested according to the European Pressure Equipment Directive (PED 97/ 23/EC) category I and II module A1.
The valve is CE marked when it is applicable. Other WB versions are the semi lugged WB11 and the fully lugged WB14, both available up to DN 300. For square flange connection, we are able to supply WB11 with additional tapped holes for this or WB 12 which has a square fully flanged valve body
The valve is supplied with a sealing profile in Nitrile or EPDM, which is reinforced with a steel core. The gland box is equipped with Stafsjö’s box packing TwinPack™, to secure that no media reaches the surrounding environment. A box bottom scraper, which is standard from DN 200, prolongs the box packing braids’ service life. The valve is modular designed and it can easily be supplied with different types of actuators and accessories.
The WB11 valve is designed, manufactured, inspected and tested according to the European Pressure Equipment Directive (PED 97/ 23/EC) category I and II module A1. The valve is CE marked when it is applicable. Other WB versions are the semi lugged WB available from DN 350 up to DN 1400 and the fully lugged WB14 available up to DN 600. For square flange connection, we are able to supply WB11 with additional tapped holes for this or WB12 which has a square fully flanged valve body.
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