Grundfos AFG.18.180 .35.Ex.5.1A.A (96696171)
Product ID: 96696171
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Grundfos AFG.18.180 .35.Ex.5.1A.A (96696171)
The Grundfos range of horizontal submersible flowmakers is designed for applications involving the mixing of large volumes in biological treatment plants where the flowmakers help to keep solids suspended in the liquid. The flowmakers are equipped with a gearbox and a large diameter propeller for energy-efficiency.
The squirrel-cage induction motor is protected against overload by means of three thermistors (PTC sensors) in the motor windings.
To prevent ingress of the surrounding liquid, the flowmakers have two radial lip seals and a mechanical shaft seal made of silicon carbide/silicon carbide or tungsten carbide/tungsten carbide, depending on size.
The oil-filled gearbox is monitored for the ingress of water by a leak sensor incorporated as standard in the seal housing. The sensor can trigger an alarm signal and/or switch off the motor by means of an external Grundfos relay, type ALR-20/A.
The gearbox incorporates tapered roller bearings absorbing the axial force from the propeller.
Motors range from 0.75 to 7.5 kW.
A wide range of accessories made of stainless steel or galvanised steel ensures easy installation and long trouble-free operation.
| Technical: | |
| Thrust to power: | 0.674 |
| Axial trust force: | 1419 N |
| Rated flow: | 1340 l/s |
| Mean velocity: | 0.53 m/s |
| Propeller speed: | 35 rpm |
| Gear ratio: | 41.890 |
| Propeller diameter: | 1800 mm |
| Number of propeller blades: | 2 |
| Max. propeller blade angel: | 28 deg. |
| Primary shaft seal: | 2 RADIAL LIP SEALS |
| Testing standard: | ISO 21630 |
| Materials: | |
| Motor: | AISI EN-GJL-250 |
| Propeller: | EPOXY-CAST IRON |
| Hub: | AISI EN-GJL-400-15 |
| Paint thickness: | 450 micrometre |
| Installation: | |
| Maximum installation depth: | 20 m |
| Fits column profile tube, size: | 100/100 mm |
| Liquid: | |
| Liquid temperature range: | 5 .. 40 °C |
| Electrical data: | |
| Power input - P1: | 2.4 kW |
| Power input Act: | 2.1 kW |
| Rated power - P2: | 1.8 kW |
| Mains frequency: | 50 Hz |
| Rated voltage: | 3 x 400 V |
| Voltage tolerance: | +5/-5 % |
| Max starts per hour: | 20 |
| Rated current: | 6.9 A |
| Starting current: | 42 A |
| Cos phi - power factor: | 0.54 |
| Cos phi - p.f. at 3/4 load: | 0.44 |
| Cos phi - p.f. at 1/2 load: | 0.34 |
| Rated speed: | 35 rpm |
| Motor efficiency at full load: | 74.5 % |
| Motor efficiency at 3/4 load: | 73 % |
| Motor efficiency at 1/2 load: | 70 % |
| Number of poles: | 4 |
| Start. method: | star/delta |
| Enclosure class (IEC 34-5): | IP68 |
| Insulation class (IEC 85): | F |
| Explosion proof: | yes |
| Ex-description: | eb h ib IIC T3 Gb |
| Built-in motor protection: | PTC |
| Power cable type: | S1BN8-F 11G1.5 |
| Length of power cable: | 15 m |
| Power plug: | No plug |
| Controls: | |
| Moisture sensor: | without moisture sensors |
| Water-in-oil sensor: | with water-in-oil sensor |
| Others: | |
| Net weight: | 168 kg |
Applications
- Industrial wastewater treatment & reuse — Grundfos offers solutions that add value to every step of wastewater treatment required for safe and compliant discharge or for water reuse in your facility. You get the most efficient treatment combined with intelligent measurement and control for maximum safety and minimum downtime.
category
- AgitatorsAgitators, such as small-scale submersible mixers and large-scale flowmakers, are designed for prefabricated pumping stations and large tanks respectively. They ensure that particles remain evenly distributed in wastewater and sludge, preventing sedimentation and supporting treatment processes.