Matra 4MS series
4" Submersible Motors
Features
Asynchronous motor with short-circuit rotor for single and three-phase
current. Filled with non-polluting dielectric oil for proper
lubrication and cooling. It rotates on properly sized ball bearings.
Oil-bath winding (vegetable, dielectric, atoxic and non pollutant oil)
ensuring the cooling and lubrication of all components. Rotor shaft on
ball bearings of adequate size able to stand axial thrusts from 2000 to
6000 N, depending on the model. On motors with power over 2.2 kW; the
thrust bearing is installed on the lower bracket. Hermetic sealing
ensured by a mechanical seal provided with sand splash guard, oil
volume increase offset by a membrane made of special rubber.
All components in contract with the water are corrosion resistant.
Materials
- External shell and shaft extension of stainless steel AISI 304.
- Upper
and lower bracket covers of stainless steel AISI 304.
- Cast iron
brackets
- Graphite-alumina-ceramic mechanical seal.
Motor
- Asynchronous, 2 poles, 50 Hz (n=2900 rpm), cooled and lubricated
by non pollutant atoxic oil.
- Class F insulation
- Single-phase
feeding 220/230V up to 2.2 kW with protection at user's care
- Three-phase
feeding 380/400V up to 5.5 kW with protection at user's care.
- Different
voltage and frequency available on request
Operating Conditions
- Maximum water temperature 30°C
- Maximum immersion depth
123 m