Submersible Motor

4M

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4" SUBMERSIBLE MOTORS

The submersible motors in the 4'' SM series, are rewindable, like their predecessors and can work in wells with water not higher than 35 ° C with a PH between 6.5 and 8.0.

The filling liquid is a dielectric fluid called white oil approved by the US FDA and other pharmacological institutions all over the world. The coupling dimensions and the flange comply with NEMA standards because these submerged motors are expressly designed to operate in conjunction with submerged pumps (in deep wells) with the same coupling dimensions.

The power supply can be single-phase or three-phase. The single-phase line starts at 0.37 kW (0.5 HP) up to 4.0 kW (5.5 HP), while the three-phase line goes from 0.37 kW (HP) up to 7.5 kW (10 HP). Submersible motors are usually used in vertical installations. However, the motors can be installed horizontally, always and in any case after confirmation by our technical department and the global evaluation of the application requested. The motors can be installed in 4'' wells with a maximum depth of 250 meters.

Their rewinding is ensured by a design that facilitates the dismantling and reassembly of the motors themselves.

APPLICATIONS :

The 4 "electric motors guarantee reliable operation in wells with a diameter equal to or greater than 4". The axial and radial bearings lubricated by the oil allow operation without maintenance. The pressure compensation inside the motor is ensured by a special membrane.

ASVANTAGES :

stator in oil;
cable material complying with drinking water standards (with relative control);
anti-sand protection and mechanical seal to allow excellent operation in the presence of sand in the well;
excellent efficiency with low operating costs;
all engines are pre-filled with liquid and 100% tested.

STANDARD MOTORS :

0.37 - 7.5 kW;
NEMA 4" flange;
Protection: IP68;
Number of starts per hour: max. 30;
Vertical and horizontal operation (only if approved);
Nominal voltage: 210-220-230 / 50 Hz / 380-415V / 50Hz / 460V / 60Hz;
Voltage tolerance: 10%;
Motor protection: real thermal selection according to EN60947-4-1 standards, trip class 10 or 10A, shutter speed <10 s. at 5 x IN;
Insulation: class F;
Ambient temperature: 30 ° C;
Cable dimensions: 4 x 1.5 mm2;
Min. Cooling flow 8 cm / sec.
pH water: 6.5-8;
Axial load: 1500 N, 2500 N, 4500 N (K), 6500 N (K).

Product details Cables Dimensioning

6MA - 8MA - 10MA

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6"- 8" -10" SUBMERSIBLE MOTORS WITH WATER BATH

Series of submersible 6 "- 8" - 10 "submersible motors in water bath, asynchronous 2 poles, with squirrel cage rotor. Wrapped in PVC wet wire, easily retractable. Robust and oversized engines to withstand heavy loads and last over time.

The radial bearings and the axial bearing are Mitchell and lubricated by the water inside the motor; this allows a long period of operation without any maintenance. Mechanical seal mounted on the crankshaft which allows a particular resistance in the presence of sand.

FEATURES :

Wet-wire winding in PVC (on request PE2 + PA);
Outer coating and lid in stainless steel;
Upper support and lower support in G25 cast iron;
Upper and lower radial bearings in Graphite;
Axial bearing in Graphite - AISI 303;
Mechanical seal in SiC - NBR - AISI304;
Non-toxic filling liquid: water + glycol;
Sand guard in NBR - AISI304;
Motor insulation class Y / B - IP 68 protection;
Mast protrusion and coupling dimensions to NEMA standards;
Easily removable and retractable;
Possibility of starting a star triangle Y / A.

EMPLOYMENT LIMITS :

Maximum number of starts now granted: 20 (6MA - 10MA) - 7 (8MA);
Axial thrust: 15500N from 5.5 to 25 hp (6MA) / 20000N from 30 to 35 hp (6MA) / 25000N from 40 hp (6MA) / 27500N from 50 to 60 hp (6MA);
Axial thrust: 45000N from 30 to 150 hp (8MA);
Axial thrust: 60000N from 125 to 200 hp (10MA);
Maximum immersion depth: 150 m (6MA);
Maximum immersion depth: 100 m (8MA - 10MA);
Minimum flow of water: 0.30 m / s (6MA);
Minimum flow of water: 0.50 m / s (8MA - 10MA).