KSB Amarex Submersible Sewage & Wastewater Pumps
The KSB Amarex Submersible Sewage Pump Series (encompassing **Amarex N** and heavy-duty **Amarex KRT** models, featured model: Amarex KRT F 80-210) is KSB's flagship fluid handling platform engineered for heavy-duty municipal wastewater treatment plants, industrial effluent pumping, storm-water lift stations, and raw sewage transport containing stringy solids, sludge, and fibrous materials. Driven by integrated **ATEX explosion-proof submersible electric motors** (available in high-efficiency IE3 variants), Amarex pumps feature non-clogging impeller geometries including free-flow vortex impellers (**F**), cutter impellers (**S**), single-vane impellers (**E**), and closed multi-channel impellers (**K**). Constructed with heavy-duty grey cast iron (JL1040), Duplex stainless steel, or wear-resistant white iron, Amarex units incorporate bi-directional mechanical seals in tandem arrangement with an environmentally friendly oil reservoir. Operating reliably across discharge sizes from **DN 50 to DN 300** with motor outputs up to **220 kW**, delivering maximum discharge heads up to **120 meters** and capacities up to **3,000 m³/h**. WE DRIVE HONGKONG LIMITED provides technical sourcing, impeller selection, motor power matching, and global express supply for KSB Amarex submersible pumps worldwide.
Technical Specifications
| Featured Model | Amarex KRT F 80-210 (Submersible Sewage Pump, DN 80 Discharge Flange, Free-Flow Non-Clogging Impeller, 7.5 kW ATEX Submersible Motor) |
|---|---|
| Brand / Manufacturer | KSB SE & Co. KGaA (German Precision Fluid Engineering) |
| Product Series | Amarex N Series (Standard Drainage/Sewage) & Amarex KRT Series (Heavy Duty Process Wastewater) |
| Flow Rate Capacity Range | 10 m³/h to 3,000 m³/h (44 GPM to 13,200 GPM Maximum Displacement) |
| Max Discharge Head | 5 m to 120 m (16 ft to 393 ft Total Dynamic Head) |
| Impeller Hydraulic Types | F (Free-flow / Vortex), S (Cutter / Grinder), E (Single-vane / Closed), K (Non-clogging multi-vane) |
| Submersible Motor & Protection | Integrated 3-Phase Submersible Motor (0.75 kW to 220 kW, IE3 High Efficiency option), IP68 Enclosure, ATEX / Ex d IIB T4 Explosion-Proof Certification |
| Sealing & Shaft Bearings | Tandem Double Mechanical Seal (SiC/SiC) with Oil Reservoir Protection; Heavy-Duty Sealed-for-Life Ball Bearings |
Documentation & Resources
KSB Amarex Model, Impeller Type & Motor Matching Matrix
Complete selection matrix for KSB Amarex N and Amarex KRT submersible sewage pumps. Review discharge sizes, impeller styles, flow rates, motor power ratings, and application duty:
| KSB Amarex Model | Discharge Size | Impeller Hydraulic | Max Flow (m³/h) / Head (m) | Submersible Motor Power | KSB Model Code Example |
|---|---|---|---|---|---|
| Amarex N S 50-170 | DN 50 (Thread/Flange) | S (Grinder / Cutter) | 18 m³/h / 42 m Head | 1.5 kW - 3.2 kW (1-Ph / 3-Ph) | Amarex N S 50-170/024 YG |
| Amarex N F 65-170 | DN 65 Flange | F (Vortex Free-Flow) | 45 m³/h / 22 m Head | 2.2 kW - 4.0 kW (ATEX) | Amarex N F 65-170/034 YG |
| Amarex KRT F 80-210 | DN 80 Flange | F (Heavy Vortex) | 110 m³/h / 38 m Head | 5.5 kW - 11.0 kW (IE3 Ex) | Amarex KRT F 80-210/114 YG |
| Amarex KRT K 100-250 | DN 100 Flange | K (Non-Clogging Closed) | 220 m³/h / 55 m Head | 15.0 kW - 30.0 kW (IE3 Ex) | Amarex KRT K 100-250/224 YG |
| Amarex KRT E 150-315 | DN 150 Flange | E (Single Channel) | 520 m³/h / 70 m Head | 37.0 kW - 75.0 kW (IE3 Ex) | Amarex KRT E 150-315/554 YG |
| Amarex KRT K 250-400 | DN 250 - DN 300 | K / E Heavy Duty | 1,800 m³/h / 110 m Head | 90.0 kW - 220.0 kW (High Volt) | Amarex KRT K 250-400/1104 YG |
Generic Wastewater Pump to KSB Amarex Submersible Upgrade Guide
Direct replacement guide for upgrading clogging, high-maintenance generic sewage pumps to non-clogging KSB Amarex submersible units:
| Generic Sewage / Sump Pump | Failure & Operational Disadvantages | Current KSB Amarex Equivalent | Key Hydraulic & Reliability Advantages |
|---|---|---|---|
| Standard Open Impeller Pump in Raw Sewage Pit | Frequent impeller clogging due to wet wipes, textiles, and fibrous solid buildup | KSB Amarex N F / KRT F (Vortex Hydraulic) 100% Clog-Free Pass | Vortex free-flow impeller design creates a whirlpool action, allowing large solids to pass without contacting impeller blades. |
| Generic Sump Pump in High-Head Lift Station | Motor burnout caused by water ingress through single mechanical shaft seals | KSB Amarex KRT with Double SiC Seals Dual SiC Seal Protection | Tandem mechanical seals with independent oil reservoir prevent liquid entering motor chamber even in aggressive media. |
| Uncertified Submersible Pump in Hazardous Pit | Non-compliance with municipal safety standards for explosive methane gas zones | KSB Amarex N / KRT (ATEX Certified) ATEX / Ex d IIB T4 | Factory-certified explosion-proof submersible motors ensure full safety compliance in hazardous lift stations. |
Expert Technical Sourcing & Municipal Wastewater System Integration Notes
When retrofitting wet-well pump stations or replacing worn submersible units, switching to KSB Amarex pumps delivers immediate operational benefits: trouble-free solids passing, high energy efficiency through optimized hydraulic channels, robust ATEX explosion protection, long seal service life, and compatibility with standard duck-foot guide rail claw couplings. Simply provide us with your complete pump type code, serial number, or operating flow/head parameters, and our technical engineering team will deliver a 100% compliant replacement specification and proposal.
Core Benchmark Model Standard Configurations
- Amarex N S 50-170/012 YG (1.5 kW Cutter)
- Amarex N S 50-170/024 YG (2.4 kW Cutter)
- Amarex N F 50-170/024 YG (2.4 kW Vortex)
- Amarex N F 65-170/034 YG (3.4 kW Vortex)
- Amarex N F 80-220/044 YG (4.0 kW Vortex)
- Amarex KRT F 80-210/054 YG (5.5 kW Ex)
- Amarex KRT F 80-210/074 YG (7.5 kW Ex)
- Amarex KRT F 100-250/114 YG (11.0 kW Ex)
- Amarex KRT K 100-250/154 YG (15.0 kW Ex)
- Amarex KRT K 150-315/304 YG (30.0 kW Ex)
- Amarex KRT E 150-315/454 YG (45.0 kW Ex)
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