‘STEALTH’ PUMP FROM WILO COMBINES HIGH PRESSURE PUMPING WITH MINIMUM NOISE
Wilo-Salmson, Europe's leading manufacturer of pumps and pumping systems, has unveiled a range of 'stealth' pumps that are up to 20dB(A) quieter than pumps with traditional fan-ventilated motors. The latest centrifugal multistage pumps are ideal for boosting water in buildings where noise may be an issue; typical examples include hotels, libraries, museums, theatres and other public areas.
Known as the Wilo-Multivert-MVIS series, the high pressure centrifugal pumps have no noisy fans to keep their motors cool. Instead, the shaft and bearings are constantly exposed to - and cooled by - the water they are pumping. This type of wet rotor design not only removes the need for a noisy fan but is also an extremely efficient means of cooling the motor.
Unlike some other low noise pumps, the Wilo-Multivert-MVIS series can be mounted vertically. As a result, it's easy to install MVIS series pumps wherever it is most convenient and efficient.
'Maintenance free' has been a guiding principle in the development of the Wilo-Multivert-MVIS series. The pumps are ruggedly constructed with stainless steel impellers, diffusers and pressure casings, and the wet rotor design, with a single shaft for both motor and pump, is effectively 'sealed for life'. And, of course, there are none of the external moving parts normally associated with fan-cooled motors.
The Wilo-Multivert-MVIS series boasts a flowrate up to 14m³ per hour and up to 110m head. The pumps are available in three ranges - the MVIS 200, MVIS 400 and MVIS 800 - and can be supplied with either the standard female threaded or Victaulic connections.
Since 1928 Wilo has been developing and manufacturing innovative pumps and pumping systems for technical building services, industry and systems construction. The core product line consists mainly of circulation pumps for HVAC applications, as well as pumps and pumping systems for water supply, rainwater utilization, pressure boosting, and dirt and waste water removal.
Sales and customer service are handled worldwide with great expertise by their own employees. Wilo products can be purchased through local HVAC and plumbing specialists.
The Wilo Group with its 2,772 employees had over 432 mil. EUR in sales in the year 2000, and is among the largest pump manufacturers in the world.
Source: WILO SE