
ITT Flygt launched its N-pump globally in 1999 followed by its New Generation N-pumps over 2000-2001.
''These pumps have been specially designed for more efficient, reliable and trouble-free pumping over long duty periods, than any other wastewater-handling submersible,'' says a spokesman for Inma, a dealer for ITT Flygt products in the UAE. ''The new pumps build on the successes achieved by the company with its patented N technology.''
The breakthroughs achieved by the N-pump, since its launch, have led to a review of new standards for pump requirements in the process and wastewater industry, he says. In the light of this, 2001 will see the continued launch of New Generation N-pumps, which not only include the patented N technology, but also many other major innovations.
Elaborating on these innovations, the spokesman continues: ''The N technology, with its self-cleaning impeller and high sustained efficiency, has brought new realities to the ideal design of wastewater pumps.
''The new motors have considerably reduced rotor losses, and heat generation is concentrated around the stator, which means less heat on the bearings.
''A new internal closed cooling system is far more efficient than existing systems, and the coolant is water and environmentally-approved monopropylene glycol.
''The pumps have an inspection chamber to avoid any leakage from entering the bearings and motor, and they are equipped with a sensor that trips an alarm when it is time for a service inspection.
''The pumps have a smoother and rounder exterior casing with fewer screws, which keeps them cleaner. The Plug-in seal unit, provides a perfect fit and faster, simpler replacement.
''Spin-out, ITT Flygt's patented seal wear protection, protects the outer seal from wear by abrasive liquid media.
''A new impeller fastener - patent pending - makes the service much simpler and faster.
''All these new innovations in the pumps means improved reliability, sustained high efficiency, and easier service. The New Generation N-pumps range from 7.5-70 kW and have a capacity of up to 500 l/s.''
ITT Flygt (www.flygt.com) is a world leader in the manufacture and supply of submersible pumps, mixers and aeration systems. The products are used in water and wastewater plants, for irrigation, in construction projects, in mines and in the process industry. It has 37 wholly or partly-owned sales companies and is represented in more than 130 countries.
The company has approximately 4,000 employees, 1,500 of whom are based in Sweden. ITT Flygt, which had a 1999 turnover of over $600 million, is a subsidiary of ITT Industries, Inc, US.