AWC 30Pumping speed 27 m³/hUltimate pressure 33 mbar
AWC 220 without motor, lantern flange for 50 Hz motor 5.5 kW, entirely in stainless steel SS 304
The Atlas Copco AWC 220 is a single-stage liquid ring vacuum pump with a pumping speed of 230 m³/h at 50 Hz (265 m³/h at 60 Hz) and an ultimate pressure of 33 mbar. It is built for humid, wet and dirty processes. Ehrler & Beck supplies it with motor or for lantern mounting, in three material versions.
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- Pumping speed 230 m³/h 50 Hz 265 m³/h 60 Hz
- Ultimate pressure 33 mbar
- Rated motor power 5.5 kW 50 Hz
Atlas Copco AWC 220 – liquid ring pump for harsh, humid processes
The AWC 220 delivers 230 m³/h at 50 Hz and 265 m³/h at 60 Hz (saturated air) and reaches 33 mbar(a). The flat port plate with variable port opening keeps the delivery capacity stable over the whole rough vacuum range and saves operating water. Inlet and outlet DN 50, operating water connection Rp 3/4, dimensions 741 × 314 × 371 mm (L × W × H), weight 129 kg.Why liquid ring?
In the pump an eccentrically mounted impeller rotates a ring of water, which seals the chambers and compresses the gas. In the process, the water absorbs the heat of compression – vapour, condensate, entrained liquid and particles hardly disturb operation.Applications of the range
Atlas Copco lists plastics extrusion, expanded polystyrene (EPS), filtration, degassing, the evisceration of meat and poultry, and drying.Variants of the AWC 220
Ehrler & Beck supplies the AWC 220 with a dual-frequency motor for 50 and 60 Hz (versions for Europe/China and for Korea/Japan), with a 50 Hz motor 380 V and without motor with lantern flange for a 50 or 60 Hz motor – in each case in grey cast iron with stainless steel impeller, entirely in stainless steel SS 304 or in SS 316L.Features of the AWC range
- Single-stage liquid ring pump with flat port plate and variable port: stable delivery capacity over the whole rough vacuum range with economical operating water consumption
- Water as operating liquid: isothermal compression, insensitive to vapour, condensate, liquid carry-over and particles
- Impeller made of stainless steel as standard, corrosion-resistant
- Version with mounted motor and lantern flange: automatic motor alignment and automatic adjustment of the liquid level to the shaft centre line during filling
- Compact pump element, robust and proven design
| Pumping speed 50Hz | 230 |
|---|---|
| Pumping speed 60Hz | 265 |
| Ultimate pressure | 33 |
| Rated motor power 50Hz | 5.5 |
| Weight | 148 |
| Length | 76.8 |
| Width | 34.4 |
| Height | 40.1 |
| Inlet connection flange | DN 50 |
| Outlet connection flange | DN 50 |
| Cooling method | Water cooling |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Single-stage liquid ring vacuum pump with mounted motor (MM) or with lantern flange without motor (LM) |
| Pumping speed (saturated) 50 Hz / 60 Hz | 230 / 265 m³/h |
| Ultimate pressure | 33 mbar(a) |
| Motor power 50 Hz / 60 Hz (dual-frequency motor) | 5.5 / 8.2 kW |
| Motor power 50-Hz-Motor 380 V | 5.5 kW |
| Speed 50 Hz / 60 Hz | 1450 / 1740 rpm |
| Motor | Three-phase, mounting B34, 4-pole |
| Mains connection (versions) | 3Ph 380 V 50 Hz; 3Ph 380-420 V 50 Hz / 460 V 60 Hz (CN/EU); 3Ph 220/380 V 50 and 60 Hz (Korea/Japan) |
| Inlet / outlet | DN 50 / DN 50 |
| Operating water connection | Rp 3/4 |
| Dimensions L × W × H | 741 × 314 × 371 mm (with mounted motor); lantern-mounted version 768 × 344 × 401 mm |
| Weight | 129 kg (dual-frequency motor), 109 kg (50 Hz motor), lantern-mounted version 148 kg |
| Materials | Materials: Stainless steel fitted = housing grey cast iron, impeller stainless steel SS 304, mechanical seal ceramic/carbon/FKM; SS 304 and SS 316L = housing, impeller and shaft made of the respective stainless steel, mechanical seal SiC/carbon/FKM. |
AWC 30Pumping speed 27 m³/hUltimate pressure 33 mbarAWC 50Pumping speed 52 m³/hUltimate pressure 33 mbarAWC 80Pumping speed 80 m³/hUltimate pressure 33 mbarAWC 110Pumping speed 110 m³/hUltimate pressure 33 mbarAWC 160Pumping speed 165 m³/hUltimate pressure 33 mbarAWC 290Pumping speed 280 m³/hUltimate pressure 33 mbarAWC 390Pumping speed 400 m³/hUltimate pressure 33 mbarAWC 500Pumping speed 500 m³/hUltimate pressure 33 mbar