Amarex Pro

Summary

Product identification

The KSB AmaRex Pro is a submersible motor pump designed for waste water applications.

• Manufacturer: KSB S.A.S
• Copyright: © KSB S.A.S, Sequedin, France 2024-09-06
• Designation Key Elements:
  • Pump type: ARX PRO (AmaRex Pro)
  • Impeller type: D-max (Open two-vane impeller)
  • Nominal discharge nozzle diameter: 080, 100, 150 mm
  • Rated power P₂: 2.20 kW to 7.50 kW
  • Efficiency class: A (IE5)
  • Number of motor poles: 4 poles
  • Motor version: U (Non-explosion-proof, standard)
  • Motor construction type: S (Wet installation)
  • Material variant: G2 (Standard variant grey cast iron, impeller made of white cast iron)
  • Nominal impeller diameter: 90 mm to 230 mm

Operating limits

• Flow rate (Q): ≤ 300 m³/h (≤ 83.3 l/s)
• Head (H): ≤ 35 m
• Fluid temperature (T): ≤ +40 °C
• Rated power (P₂): 2.2 - 7.5 kW
• Duty Type:
  • Submerged condition: S1 (continuous duty) without restrictions.
  • Non-submerged condition: S1 (continuous duty) or S3 (intermittent duty), depending on size.
• Maximum immersion depth: 25 m (for S1 continuous duty)
• Installation Depth:
  • Stationary, twin guide rail arrangement: 6 m (available up to 12 m)
  • Stationary, guide wire arrangement: 4.5 m (available up to 9.5 m and 14.5 m)
  • Transportable (DN 80 and DN 100): 14.5 m
• Relative duty cycle in S3 duty (intermittent duty): Restricted depending on size and P₂. For example, D080-230 (5.5 kW) is 40%, 10 minutes; D100-230 (7.5 kW) is 30%, 10 minutes. See the official PDF for exact tabulated values.

Feed water

The AmaRex Pro is designed to handle various types of waste water and sludges.

• Fluids handled:
  • Service water
  • Grey water
  • Waste water with faeces
  • Waste water containing long fibres and solid substances
  • Fluids containing gas
  • Activated sludge
  • Digested sludge
  • Raw sludge
• Fluid properties for standard materials (G2):
  • pH should be ≥ 6.5.
  • Sand content ≤ 0.5 g/l (for grey cast iron).
  • Free passage: Must be at least 40 mm for waste water with faeces (to EN 12050). ATV recommendation for untreated municipal waste water is 100 mm free passage, minimum 76 mm.
  • Sludges are pumpable up to a dry substance content of 13 %.
• Impeller type D-max: Suitable for waste water containing wet wipes and long fibres.

Electrical

• Rated power (P₂): 2.2 - 7.5 kW
• Voltage: 380 - 480 V
• Starting method: DOL (Direct On-Line)
• Motor:
  • Permanent magnet synchronous motor
  • Thermal class H
  • Enclosure: IP68 to EN 60529/IEC529
  • Efficiency class: IE5 (for motors achieving efficiency levels similar to IEC 60034-30-2 standard)
  • Number of motor poles: 4
  • Motor version: Non-explosion-proof, standard
  • Motor construction type: Wet installation
• Winding temperature monitoring: Bimetal switch with automatic reset and start-up.
• Power cable:
  • Type: Shielded power cable, rubber-sheathed (S07RC4N8-F)
  • Length: 10 m
  • Cable entry: Resin-sealed
• Technical data (3~ 400 V AC): Specific P₁, P₂, IN, IDeragging, and weight values are available for each model size (e.g., D080-180, D080-230, D100-180, D100-230, D150-230). See the official PDF for exact tabulated values.

Mechanical / hydraulic

• Design: Vertical single-stage submersible motor pump for wet installation, with open two-vane impeller (D-max), stationary or transportable version. Single-stage, single-entry, close-coupled non-self-priming pump set.
• Impeller type: Open two-vane impeller (D-max) with patented deflection technology for non-clogging operation.
• Shaft seal: Two bi-directional mechanical seals in tandem arrangement, with liquid reservoir.
  • Liquid reservoir contains non-toxic, food-approved oil fill for lubrication.
  • Drive end mechanical seal: Standard Carbon/Al₂O₃
  • Pump end mechanical seal: Standard SiC/SiC/NBR; Optional SiC/SiC/FPM, SiC/SiC/KAL
• Bearings:
  • Grease-packed bearings sealed for life.
  • Maintenance-free.
  • Pump-end bearings are reinforced.
  • Long service life with durable bearings (100,000 operating hours).
• Materials (Material variant G2 - Standard):
  • Casing, Motor cover, Suction cover, Discharge cover, Flanged bend, Claw: EN-GJL-250 (grey cast iron)
  • Shaft: 1.4021
  • Impeller: EN-GJN-HB555 (wear-resistant white cast iron)
  • O-ring: Standard Nitrile butadiene rubber (NBR70); Optional Fluoroelastomer (FKM80), Viton, Teflon-coated (FEP/FKM)
  • Hexagon socket head cap screw: A4
  • Pump foot, Foot plate, Mounting bracket: 1.4301
  • Suspension bracket: 1.4571
  • Wire: 1.4401
  • Lifting chain: 1.4404
  • Lifting rope: Polypropylene
• Coating: Environmentally friendly top coat (two-component epoxy paint), colour RAL 5002, film thickness 80 µm.
• Efficiency: Overall efficiency of up to 70 %.
• Installation Types:
  • Stationary wet installation (Guide wire arrangement, Twin guide rail arrangement).
  • Transportable wet-installed model.
• Dimensions and Weights: Detailed dimensions for transportable and stationary models, connection elbows, pump flanges, and flanged bends are provided in the official PDF. See the official PDF for exact tabulated values.

Accessories

A range of accessories is available for installation, operation, and monitoring.

• Installation parts for stationary pump sets: Guide wire arrangement, Twin guide rail arrangement, Claw (with NBR or FKM sealing elements).
• Installation parts for transportable pump sets: 3 pump feet, Footplate with bolts.
• Chain for stationary and transportable pump sets: Chain (1.4404) in various lengths (3 m, 5 m, 10 m, 15 m), Polypropylene lifting rope (5 m).
• Pump accessories:
  • Connection elbow with flange/hose connection (DN 80, DN 100).
  • Connection elbow with flanges (DN 80, DN 100).
  • Storz rigid coupling (DN 80, DN 100).
  • Storz hose coupling (B 75, A 110).
  • Plastic hose without coupling (B 75, 80, A 110) in various lengths (5 m, 10 m, 20 m, 30 m).
  • Hose clip (B 75, AL 110 - 120 B).
  • Check valve (DN 80, DN 100).
  • COBRA-SGP with flat body (DN 80, DN 100).
  • Set of installation accessories for flange connection.
  • Hand pump.
• Alarm switchgears (non-ATEX-compliant): AS 0, AS 1, AS 2, AS 4, AS 5 (with features like circuit breaker, acoustic signalling, volt-free contacts, self-charging power supply).
• Accessories for non-ATEX-compliant control units: Float switch, F1 leakage sensor, Horn, Alarm combination, Yellow alarm strobe light, Plastic housing for strobe light, KSB ServiceTool, Parameterisation cable, Transmission module.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from 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