Enbloc, centrifugal electric pumps with coupling designed for a wide range of applications such as:
The circulation of hot water for central heating.
The circulation of cold water for air conditioning and refrigerating.
The transfer of liquids in agriculture, horticulture and industries.
The implementation of pumping systems.
These can be connected to a two or four poles electric motor with a coupling and mounted on a pressed metal bedplate in accordance with UNI EN 23661. Single-stage, cast iron spiral body made to DIN-EN 733 (formerly DIN 24255), cast iron seal holder cover and motor support, flanges in accordance with DIN 2533 (DIN 2532 for DN 200). Impeller in cast iron, encased and dynamically balanced with compensation of the axial thrust by means of balancing holes, operating (on request) with interchangeable consumable rings. Stainless steel pump shaft supported by two large maintenance-free greased ball bearings, housed inside a special chamber of the support. Standard seal: standardised mechanical seal made to DIN 24960 in carbon/carborundum with O’ rings in EPDM. Packing on request with hydraulic lubricating ring and stuffing box in two easily removable parts. Speed of rotation: 1450 - 2900 1/min.
Operating range: from 1 to 500 m3/h with a head of up to 100 metres.
Pumped liquid: clean, without solid or abrasive substances, not viscous, not aggressive, not crystallised and chemically neutral, close to water characteristics.
Liquid temperature range: from -10°C to +140°C.
Maximum ambient temperature: +40°C.
Maximum working pressure: 16 bar - 1600 kPa (for DN 200 max. 10 bar).
Flanging: PN 16 DIN 2533 - PN 10 DIN 2532 for DN 200
Installation: normally horizontal.
Special versions on request: pumps for liquids other than water. Packing (can also be fed externally). Other voltages and/or frequencies.