New High-Performance Butterfly Valve for the Industry


Early in November this year, KSB Armaturen GmbH will launch a new series of heavy-duty valves. They were designed for use in the chemical, petrochemical, paper and pulp as well as the sugar industries.

New High-Performance Butterfly Valve for the Industry

Neue Hochleistungsklappe Danaïs 150 für anspruchvolle Anwendungen in der Industrie

Manufactured with inside diameters of 50 to 600 mm, the new double-offset Danaïs 150 butterfly valves are capable of withstanding temperatures from minus 50 to plus 260 degrees Celsius depending on the quality of the medium.

The valves are sealed by either a PTFE ring or a metal profile ring. Both seat designs are such that they ensure bi-directional sealing. The sealing function is further enhanced if the seat is pressurised in the preferential flow direction. If the butterfly valve is not subjected to the full differential pressure, the pressure acting on the valve disc is lower and hence friction between the two elements reduced. This will increase the service life of the seat.

A mechanical travel stop is provided for proper disc positioning and to prevent seat damage due to the disc rotating beyond the closed position. The Danaïs butterfly valves are available with steel / stainless steel wafer-type or lug-type bodies suitable for installation between flanges of PN 10 to 25 or ANSI class 150. The top flanges and the shaft ends are in accordance with DIN ISO 5211. Therefore, it is possible to fit manual, pneumatic, hydraulic or electric actuators from any manufacturer.

More articles on this topic

Multi screw pump moves highly viscous heavy oil at low NPSHa

22.02.2024 -

At a tank farm in a Brazilian sea port, two centrifugal pumps were used for transferring heavy oil from storage tanks to road tankers or vessels until February 2020. This required the high viscosity of the medium to be reduced by means of diesel injection, costing the owner at least 2,000 US dollars each day. In addition, the centrifugal pumps regularly broke down due to cavitation damage. The owners decided to initially replace one of the two centrifugal pumps with a NOTOS multi screw pump from NETZSCH. Due to its very good suction capabilities, the selected four-screw 4NS is also suitable for highly viscous media with up to 200,000 cSt, achieving a flow rate of up to 3000 m³/h.

Read more

Desmi Introduces the Magnetically Driven Methanol Pump

20.02.2024 -

Safe and efficient DESMI mag-drive centrifugal pumps enable leakage-free methanol fuel systems for ships, reducing vessel carbon emissions and climate impact. With every year that passes, emission regulations tighten in the shipping industry. Shipowners who want to stay in business need to look for ways of reducing carbon emissions to comply with the targets defined in the IMO GHG Strategy and other regulations.

Read more