KSB to showcase latest solutions.
New level controller unit for pumps In time for the ISH fair, KSB Aktiengesellschaft is launching LevelControl Basic 2, a new cost-efficient control unit for monitoring and controlling either one or two pumps. The unit detects the liquid level either via a float switch, an analog sensor, an integrated pneumatic pressure sensor or a bubbler system. Depending on the motor power, the pumps can be started up either directly or in star-delta configuration. Phase and voltage monitoring, as well as monitoring of service intervals, are standard features of LevelControl Basic 2. The control unit is available in either a compact housing or a stainless steel cabinet and has a well-structured display which is easy to operate and shows all important information. The unit is optionally available with a rechargeable battery and charging unit for powering the electronics and the signalling equipment. This ensures the mains-independent function of both the integrated buzzer for high-water alert and of any horns or flashlights connected. Apart from its monitoring and safety functions, the new LevelControl Basic 2 unit offers comprehensive control functions such as control of a stand-by pump, functional check runs after idle periods or Atex mode. Phased starting/stopping if both pumps have to be started/stopped prevents surge pressures and minimises start-up currents. The robust electronics are designed to operate in a temperature range from -10AC to +50AC. Factory settings and the unit's ample connection space make for easy installation and commissioning.
New economical circulator pump In recent innovations, the company launched what it said was a new economical circulator pump for universal use. The new Rio-Eco B circulator can be used for the entire field of heating, venting, air-conditioning and drinking water. The material selection -- volute casing made of gunmetal and KTW-approved elastomers -- makes this type series conform to the 2001 drinking water regulation. "Thanks to its newly developed high-efficiency design, this circulator received an 'A' classification for its energy efficiency in heating, venting and air-conditioning applications," the company said. "The circulator's low power consumption is due to its good hydraulic efficiency, for example, achieved by a plastic impeller with multiply curved vanes and by the sealed suction neck minimising internal leakage losses at the clearance gaps between impeller and casing." The pump is driven by a synchronous motor fitted with a permanent magnet rotor, so that the magnetic field required in the rotor does not have to be generated by electrical energy. The rotating magnetic field in the stator is produced by electronic pole reversal, which also serves to adjust rotor speed. In part-load operation in particular, this makes for a considerably higher motor efficiency compared with conventional asynchronous motors. According to the company, the technology used for the maintenance-free wet-rotor pump saves up to 80 per cent in energy compared with a fixed-speed circulator pump.
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|Date:||Mar 1, 2009|
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