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The Elmo Rietschle 2BL2 041 is a liquid ring vacuum pump of the L-BL2 series down to 33 mbar abs., 0.85 kW (50 Hz), in 4 motor versions. Ehrler & Beck advises on selection and service.
Elmo Rietschle 2BL2 041 – liquid ring vacuum pump of the L-BL2 series
The 2BL2 041 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 0.85 kW at 50 Hz.
Versions and motors
Listed are 4 order numbers from the data sheet in the standard material version (grey cast iron (ceramic-coated inside)) with IE3 three-phase motors for various voltage ranges. Voltage, current, power, sound pressure level and weight are given with each version.
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
0.85
Rated motor power 60Hz
1.15
Motor efficiency class
IE3
Weight
40
Noise level
65 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 (ceramic-coated inside)
50 Hz
190–210 V, 4.7 A, 0.85 kW, service factor 1.29, 65 dB(A), IE3
60 Hz
190–210 / 380–420 V, 5.40 / 2.70 A, 1.15 kW, service factor 1.10, 69 dB(A), IE3
60 Hz (NEMA Premium)
200 V, 4.60 A, 1.15 kW, service factor 1.04, 69 dB(A), NP
Weight
approx. 40 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)
L-BL2 2BL2 061