AWL 4000Pumping speed 4,290 m³/hUltimate pressure 160 mbar
AWL 21500 without motor, DIN flanges, entirely in stainless steel SS 304
The Atlas Copco AWL 21500 is a large single-stage liquid ring vacuum pump with a pumping speed of 21300 m³/h (saturated) down to 160 mbar. It is built for high volume flows in rough vacuum – for example in mining, the sugar industry or the paper industry. Ehrler & Beck configures material and drive.
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- Pumping speed 21,300 m³/h 50 Hz
- Ultimate pressure 160 mbar
- Rated motor power 450 kW 50 Hz
| Variant | Part number |
|---|---|
| without motor, DIN flanges, grey cast iron version (housing carbon steel, impeller ductile iron) | 1905100309 |
| without motor, DIN flanges, Stainless steel fitted (housing carbon steel, impeller SS 304) | 1905100310 |
| without motor, DIN flanges, entirely in stainless steel SS 304 (selected) | 1905100311 |
| without motor, DIN flanges, entirely in stainless steel SS 316L | 1905100312 |
| without motor, ANSI flanges, grey cast iron version (housing carbon steel, impeller ductile iron) | 1905100313 |
| without motor, ANSI flanges, Stainless steel fitted (housing carbon steel, impeller SS 304) | 1905100314 |
| without motor, ANSI flanges, entirely in stainless steel SS 304 | 1905100315 |
| without motor, ANSI flanges, entirely in stainless steel SS 316L | 1905100316 |
Atlas Copco AWL 21500 – liquid ring pump for large volume flows
The AWL 21500 delivers 21300 m³/h of saturated air (20176 m³/h dry) down to a pressure of 160 mbar(a) at 330 rpm. It is driven via V-belts or a gearbox; the power provided for is 450 kW, and Atlas Copco uses IE3 motors for this as standard. The pump itself is supplied without motor. Inlet and outlet DN 400, operating water connection DN 100, dimensions 3129 × 1929 × 2613 mm (L × W × H), weight 9300 kg.Applications of the range
Atlas Copco lists filtration, evacuation and evaporation under the most difficult conditions – for example in mining and mineral processing, in sugar production, in wood impregnation and in the pulp and paper industry.Variants of the AWL 21500
Ehrler & Beck supplies the AWL 21500 as a grey cast iron version, stainless steel fitted, entirely in SS 304 or in SS 316L, in each case with DIN or ANSI flanges.Features of the AWL range
- Single-stage, flanged centre body for high strength
- Very high pumping capacity, stable, self-regulating delivery capacity
- Excellent handling of vapour and moisture
- Drive via V-belt or gearbox, with IE3 motors as standard
- Very low maintenance effort, compact and economical installation
- Materials: carbon steel, ductile iron and stainless steel; material and drive to customer specification
| Pumping speed 50Hz | 21,300 |
|---|---|
| Ultimate pressure | 160 |
| Rated motor power 50Hz | 450 |
| Weight | 9,300 |
| Length | 312.9 |
| Width | 192.9 |
| Height | 261.3 |
| Inlet connection flange | DN 400 |
| Outlet connection flange | DN 400 |
| Cooling method | Water cooling |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Single-stage liquid ring vacuum pump, without motor (drive via V-belt or gearbox) |
| Pumping speed | 21300 m³/h saturated, 20176 m³/h dry |
| Ultimate pressure | 160 mbar(a) |
| Drive power | 450 kW (Atlas Copco fits IE3 motors as standard) |
| Nominal speed | 330 rpm |
| Inlet / outlet | DN 400 (DIN) or 16" (ANSI) |
| Operating water connection | DN 100 |
| Dimensions L × W × H | 3129 × 1929 × 2613 mm |
| Weight | 9300 kg |
| Materials | Grey cast iron version, Stainless steel fitted, SS 304 or SS 316L; impeller of the AWL 17500 to 37500 made of carbon steel in the grey cast iron version |
| Shaft seal | Mechanical seal SiC/carbon/FKM |


