BOREHOLE PUMP WILO TWI 4.01-28-DM 3~ CABLE 100M

Hydraulics

Multi-stage submersible pump with 4"?NEMA?connection and radial or semi-axial impellers in a sliding construction. Integrated check valve. All parts in contact with the fluid are made of stainless materials.

Motor

Corrosion-resistant single-phase or three-phase motor for direct start. Sealed, hermetically cast motor with resin-coated, enamel-insulated winding, self-lubricating bearings, filled with water-glycol.

Cooling

The motor is cooled by the fluid. The motor must always be operated submerged. Maximum temperature and minimum flow rate limits of the pumped fluid must be observed. Vertical installation can be performed optionally with or without a cooling jacket. Horizontal installation must be performed with a cooling jacket.

Pressure Housing

The pressure housing is designed for direct installation of the unit into the piping system. A check valve is not installed as standard equipment. Maximum inlet pressure is 10 bar.

The package includes the pump, cable, and wire.

Hydraulic Data

• Minimum efficiency index (MEI): ?0.7
• Maximum allowable operating pressure PN: 40 bar
• Maximum sand content: 50 g/mł
• Maximum submersion depth: 350 m
• Maximum flow rate Qmax: 2.9 mł/h
• Optimal flow rate Qopt: 1.9 mł/h
• Maximum head Hmax: 166.1 m
• Optimal head Hopt: 116.2 m
• Minimum fluid temperature Tmin: 3 °C
• Maximum fluid temperature Tmax: 30 °C
• Number of phases: 28

This product description is an automated translation of the original Finnish description.