Nocchi SMC 4 Plus

Summary

Product identification

Nocchi SCM 4 PLUS Electric Submersible Multi-Stage Centrifugal Pump, 4” complete with motor. Designed for lifting water from deep wells with a minimum diameter of ø 4” (100 mm).

Applications

• Lifting from bore hole wells.
• Automatic garden irrigation systems.
• Gravity irrigation for agricultural use.
• Drinking water aqueducts.
• Lifting and supply of storage deposits or pressure autoclaves, for civil and industrial systems.

Operating limits

• Type of liquid: Clean, non aggressive, non explosive, free of solid bodies.
• Maximum liquid temperature: 35°C.
• Max. hourly start-ups: 30.
• Motor protection: Thermal cut-out to be fitted by user.

Electrical

• Motor: Submerged 4” motor.
• Protection rating: IP 68.
• Insulation class: B.
• Rotation speed: 2850 rpm.
• Power cable: Removable, approx. 1.75 m.
• Cooling: Non-polluting water cooling.
• Flange: NEMA 4”.

Specific Electrical Parameters (Ranges per Model Series)

The document provides detailed electrical parameters for each model, including:

• SCM 4 PLUS-40 Series: Power motor from 0.5 HP (0.37 kW) to 2 HP (1.5 kW), available in 1 ~ 230 V or 3 ~ 400 V, with current (In) ranging from 3.4 A to 10.2 A (1~) or 1.2 A to 4 A (3~), and capacitor (μF) from 16 to 50.
• SCM 4 PLUS-55 Series: Power motor from 0.5 HP (0.37 kW) to 3 HP (2.2 kW), available in 1 ~ 230 V or 3 ~ 400 V, with current (In) ranging from 3.4 A to 10.2 A (1~) or 1.2 A to 5.6 A (3~), and capacitor (μF) from 16 to 50.
• SCM 4 PLUS-75 Series: Power motor from 0.5 HP (0.37 kW) to 3 HP (2.2 kW), available in 1 ~ 230 V, 3 ~ 400 V, or 3 ~ 230 V, with current (In) ranging from 3.4 A to 10.2 A (1~), 1.2 A to 5.6 A (3~ 400V), or 3.8 A (3~ 230V), and capacitor (μF) from 16 to 50.
• SCM 4 PLUS-115 Series: Power motor from 0.5 HP (0.37 kW) to 4 HP (3 kW), available in 1 ~ 230 V, 3 ~ 400 V, or 3 ~ 230 V, with current (In) ranging from 3.4 A to 10.2 A (1~), 1.2 A to 7.5 A (3~ 400V), or 3.8 A to 5.2 A (3~ 230V), and capacitor (μF) from 16 to 50.
• SCM 4 PLUS-150 Series: Power motor from 1 HP (0.75 kW) to 7.5 HP (5.5 kW), available in 1 ~ 230 V, 3 ~ 400 V, or 3 ~ 230 V, with current (In) ranging from 5.9 A to 10.2 A (1~), 2.2 A to 13.6 A (3~ 400V), or 3.8 A to 5.2 A (3~ 230V), and capacitor (μF) from 30 to 50.
• SCM 4 PLUS-250 Series: Power motor from 2 HP (1.5 kW) to 7.5 HP (5.5 kW), available in 1 ~ 230 V, 3 ~ 400 V, or 3 ~ 230 V, with current (In) ranging from 10.2 A (1~), 4 A to 13.6 A (3~ 400V), or 6.9 A (3~ 230V), and capacitor (μF) of 50.

Mechanical / hydraulic

• Pump type: Multi-stage centrifugal submersible pump.
• Well diameter: Minimum ø 4” (100 mm).
• Mechanical gasket: Special, with sand-proof protection.
• Delivery port: Microcast AISI 304 stainless steel with double internal tapered profile and stainless steel check valve, double slot for safety cable.
• Shaft guide bearing: Self-lubricating closed bushing in molybdenum bisulphide filled polyamide.
• Motor shaft: Hexagonal in stainless steel X10 CrNiS1809 (AISI 303) with ceramic coating at point of wear.
• Impeller: Floating impeller with shim ring on suction port in stainless steel, co-molded with a diffuser cover.
• Thrust bearing: Inserted between impeller hub and diffuser, formed by 1 ceramic ring co-molded with diffuser and one free graphite ring.
• Motor bracket and suction outlet: Microcast AISI 304 stainless steel, rigidly welded to external stainless steel jacket.
• Suction grille: Stainless steel.

Materials of Construction

• Delivery port: Microcast stainless steel X5 CrNi1810 (AISI 304)
• Suction flange: Microcast stainless steel X5 CrNi1810 (AISI 304)
• Pump body: Stainless steel X5 CrNi 1810 (AISI 304)
• Check valve: Stainless steel X5 CrNi 1810 (AISI 304)
• Cable protection ducting: Stainless steel X5 CrNi 1810 (AISI 304)
• Filter: Stainless steel X5 CrNi 1810 (AISI 304)
• Impellers: Acetal resin
• Diffuser: Polycarbonate with ceramic insert at point of wear
• Diffuser cap: Polycarbonate with ceramic insert at point of wear
• Motor shaft: Hexagonal in stainless steel X10 CrNiS1809 (AISI 303) with ceramic coating at point of wear
• Self-lubricating delivery bearing: Molybdenum bisulphide filled polyamide
• Thrust ring: Inserted in each stage

Dimensions and Weight

The document provides detailed tables for various models (e.g., SCM 4 PLUS 40/57 M/T up to SCM 4 PLUS 250/185 T) including:

• Total length (A, B, C) in mm
• DNM (Discharge Nominal Diameter) in inches (1"1/4 or 2")
• Packaging length (L) in mm
• Total weight in kg

See the official PDF for exact tabulated values.

Hydraulic Performance

The document provides detailed performance tables for each model series (SCM 4 PLUS 40, 55, 75, 115, 150, 250) including:

• Number of stages
• Motor power (HP, kW)
• Discharge Nominal Diameter (DNM)
• Flow rates (Q) in L/min and m³/h
• Head (H) in m.c.a. / m.w.c.

See the official PDF for exact tabulated values.

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Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror