L-BL2 2BL2 041
L-BL2 2BL2 281 Three-phase, 50 Hz 190–210 V, 60 Hz 190–210 / 380–420 V (NEMA Premium 200 V), 5.5 / 7.2 kW, IE3
The Elmo Rietschle 2BL2 281 is a liquid ring vacuum pump of the L-BL2 series down to 33 mbar abs., 5.5 kW (50 Hz), in 4 motor versions. Ehrler & Beck advises on selection and service.
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- Rated motor power 5.5 kW 50 Hz 7.2 kW 60 Hz
Elmo Rietschle 2BL2 281 – liquid ring vacuum pump of the L-BL2 series
The 2BL2 281 is a liquid ring vacuum pump of the L-BL2 series from Elmo Rietschle: a compact, ready-to-connect closed-circuit vacuum pump with water tank; according to the data sheet it is air-cooled and needs no additional water in operation. According to Elmo Rietschle, the series reaches an inlet pressure of 33 mbar abs. Motor power 5.5 kW at 50 Hz.Versions and motors
Listed are 4 order numbers from the data sheet in the standard material version (grey cast iron (standard version)) with IE3 three-phase motors for various voltage ranges. Voltage, current, power, sound pressure level and weight are given with each version. Further material versions (material code R, B, H) are available according to the data sheet and can be supplied on request.Pumping speed
Elmo Rietschle gives the pumping speed as a characteristic curve over the inlet pressure (100 % saturated air, 20 °C, operating liquid water 15 °C, tolerance ±10 %). According to Elmo Rietschle, the L-BL2 series covers 27 to 300 m³/h. Ehrler & Beck determines the pumping speed for your operating point.Advice and service
Ehrler & Beck advises on selection, operating liquid and accessories, supplies spare parts and carries out maintenance and repair.| Rated motor power 50Hz | 5.5 |
|---|---|
| Rated motor power 60Hz | 7.2 |
| Motor efficiency class | IE3 |
| Weight | 228 |
| Noise level | 73 dB(A) |
| Cooling method | Air cooling |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Liquid ring vacuum pump with closed circuit (water tank), air-cooled |
| Ultimate pressure / inlet pressure | down to 33 mbar abs. (according to the Elmo Rietschle website) |
| Materials | Grey cast iron (standard version) |
| 50 Hz | 190–210 V, 29.9 A, 5.5 kW, service factor 1.36, 73 dB(A), IE3 |
| 60 Hz | 190–210 / 380–420 V, 33.0 / 16.5 A, 7.2 kW, service factor 1.19, 78 dB(A), IE3 |
| 60 Hz (NEMA Premium) | 200 V, 28.5 A, 7.2 kW, service factor 1.19, 78 dB(A), NP |
| Weight | approx. 228 kg |
| Motor | Three-phase, IE3, IP55, insulation class F |
| Pumping speed | Characteristic curve in the data sheet; series L-BL2 according to Elmo Rietschle 27 to 300 m³/h |
| Reference conditions | 100 % saturated air, 20 °C, 1013 mbar, operating liquid water 15 °C, tolerance ±10 % |
| Sound pressure level measuring method | EN ISO 3744, 1 m, medium throttling, tolerance ±3 dB(A) |
