Product News 9
MASSIVE EXPANSION OF CHEMICAL PUMP SERIES KSB SE & CO. KGAA HAS ADDED 19 sizes to its MegaCPK type series. Users can now choose from 55 sizes with more than 78 hydraulic systems for these standardised chemical pumps. The available materials of grey cast iron, nodular cast iron and cast steel, stainless steel, as well as duplex and special alloys such as titanium and Hastelloy, result in an extensive range of applications. Fluids that require heating or cooling can also be handled. The pumps are characterised primarily by their high output per size and their low energy consumption. Not only does this save on electricity consumption, but it also reduces the user’s initial investment. KSB’s developers have placed particular emphasis on good suction behaviour, with a low NPSH value to minimise the risk of cavitation. This enables smooth and stable pump operation even under difficult operating conditions. It also ensures a high degree of reliability and improves the availability of an entire system.
By using the finite element method (FEM), a calculation method for the simulation of solids, the developers were able to achieve a high degree of strength and rigidity of the installed components while at the same time optimising the use of materials. After optimising all hydraulic contours using computational fluid dynamics (CFD) the improvements were verified in test set ups. The new seal chamber design allows the installation of gland packings, all common mechanical seals compliant with EN 12756, and many cartridge-type mechanical seals. Fully confined casing gaskets and minimised axial thrust ensure long service life. To control and monitor operation, the pumps can be equipped with speed control, vibration and bearing temperature measurement
and operating point monitoring. In line with KSB’s common practice for industrial pumps, every pump is supplied to the customer with the impeller diameter trimmed exactly to the duty point. Impeller trimming, combined with the large range of pump sizes, helps ensure that the pump’s energy consumption is kept to the minimum necessary, even when run at a fixed speed. www.ksb.com
PUMP MOTOR FOR THERMAL POWER STATION
MENZEL ELEKTROMOTOREN HAS MANUFACTURED a motor with a special flange for a condensate extraction pump in a combined heat and power plant. The original motor, which was over 30 years old, had to be matched precisely in all mechanical and electrical interfaces. Works included the manufacture of a flange with special dimensions for vertical installation and repositioning of the main terminal box. The energy supply company, already a customer of Menzel Italy, awarded the order because Menzel could fully confirm all technical requirements. Menzel’s MEBKGR series comprises high-voltage squirrel cage motors with a good price-performance ratio. For the current application, the manufacturer designed a 4-pole motor with size 500, 6000V nominal voltage, 1100kW nominal output, protection class IP55 and cooling type IC 411 (fin cooling with external fan). Menzel took the motor all the way through to commissioning, which was carried out to the customer’s satisfaction. www.menzel-motors.com/pump-drive
Quarter 2 2023
£100k ($130,000)