AWD 110 SPumping speed 106 m³/hUltimate pressure 33 mbar
AWD 300 S 1905100556 without motor, entirely in stainless steel SS 304
The Atlas Copco AWD 300 S is a two-stage liquid ring vacuum pump with 270 m³/h at 50 Hz (314 m³/h at 60 Hz) and an ultimate pressure of 33 mbar. It replaces the SIHI LPH55312 without modification. Ehrler & Beck supplies it in three material versions.
Request a quote for this product Read more
- Pumping speed 270 m³/h 50 Hz 314 m³/h 60 Hz
- Ultimate pressure 33 mbar
- Rated motor power 7.5 kW 50 Hz 11 kW 60 Hz
| Variant | Part number |
|---|---|
| without motor, Stainless steel fitted (housing grey cast iron, impeller SS 304) | 1905100555 |
| without motor, entirely in stainless steel SS 304 (selected) | 1905100556 |
| without motor, entirely in stainless steel SS 316L | 1905100557 |
Atlas Copco AWD 300 S – two-stage for low inlet pressures
The AWD 300 S delivers 270 m³/h at 50 Hz and 314 m³/h at 60 Hz (dry air) and reaches 33 mbar(a). It is supplied without motor; it is intended for 7.5 kW at 50 Hz or 15 hp at 60 Hz. Inlet and outlet DN 50, dimensions 811 × 303 × 520 mm (L × W × H), weight 146 kg.Direct replacement for SIHI LPH
The AWD S range (since 2025) replaces the earlier AWD 200 to 1680 and, according to Atlas Copco, is fully compatible in dimensions and performance with the SIHI LPH range – the AWD 300 S fits in place of a SIHI LPH55312.Applications
Two-stage for continuous operation below 200 mbar(a) – especially vacuum distillation, drying, degassing and evaporator duty.Variants of the AWD 300 S
Ehrler & Beck supplies the AWD 300 S as a stainless steel fitted version (grey cast iron with stainless steel impeller), entirely in SS 304 or in SS 316L.Features of the AWD range
- Two-stage design – highest efficiency at the low-pressure end of the rough vacuum range
- Works over the entire vacuum range down to 33 mbar(a)
- Water as operating liquid: isothermal compression, insensitive to vapour, condensate, liquid carry-over and particles
- Robust design with few housing joints, external bearings, mechanical seals
- Materials selectable to suit the process medium
| Pumping speed 50Hz | 270 |
|---|---|
| Pumping speed 60Hz | 314 |
| Ultimate pressure | 33 |
| Rated motor power 50Hz | 7.5 |
| Rated motor power 60Hz | 11 |
| Weight | 146 |
| Length | 81.1 |
| Width | 30.3 |
| Height | 52 |
| Inlet connection flange | DN 50 |
| Outlet connection flange | DN 50 |
| Cooling method | Water cooling |
| Oil type | Oil-free |
Convert units: vacuum and pressure units · Nm³/h to m³/h
Additional technical data
| Technical data | Value |
|---|---|
| Design | Two-stage liquid ring vacuum pump, without motor |
| Pumping speed (dry) 50 Hz / 60 Hz | 270 / 314 m³/h |
| Ultimate pressure | 33 mbar(a) |
| Motor power | 7.5 kW (50 Hz) / 15 hp (60 Hz) |
| Speed 50 Hz / 60 Hz | 1450 / 1750 rpm |
| Inlet / outlet | DN 50 |
| Operating water connection | 1" BSP female |
| Max. vibration severity | 4.5 mm/s |
| Dimensions L × W × H | 811 × 303 × 520 mm |
| Weight | 146 kg |
| Materials | Stainless steel fitted (housing and port plate grey cast iron, impeller SS 304, shaft carbon steel), SS 304 or SS 316L; mechanical seal SiC/carbon/FKM |
| Replacement | direct replacement for SIHI LPH55312 (dimensions and performance compatible according to Atlas Copco) |
AWD 110 SPumping speed 106 m³/hUltimate pressure 33 mbarAWD 140 SPumping speed 145 m³/hUltimate pressure 33 mbarAWD 180 SPumping speed 186 m³/hUltimate pressure 33 mbarAWD 350 SPumping speed 342 m³/hUltimate pressure 33 mbarAWD 400 SPumping speed 425 m³/hUltimate pressure 33 mbarAWD 500 SPumping speed 501 m³/hUltimate pressure 33 mbarAWD 600 SPumping speed 616 m³/hUltimate pressure 33 mbarAWD 800 SPumping speed 862 m³/hUltimate pressure 33 mbarAWD 1200 SPumping speed 1,252 m³/hUltimate pressure 33 mbarAWD 1600 SPumping speed 1,589 m³/hUltimate pressure 33 mbarAWD 1960Pumping speed 2,000 m³/hUltimate pressure 33 mbarAWD 3280Pumping speed 3,300 m³/hUltimate pressure 33 mbar
