G-BH1 2BH1 100
G-BH1 2BH1 943 Three-phase, 50 Hz 380–420 / 660–725 V, 60 Hz 440–480 V (NEMA Premium 460 V), 17.3 / 19.9 kW, IE3
The Elmo Rietschle 2BH1 943 is a side channel blower of the G-BH1 series for vacuum and pressure operation: 17.3–25.3 kW (50 Hz), differential pressure up to −310 mbar (vacuum) or 280 mbar (pressure), depending on the motor. Ehrler & Beck advises on selection and service.
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- Rated motor power 17.3 kW 50 Hz 19.9 kW 60 Hz
Elmo Rietschle 2BH1 943 – side channel blower of the G-BH1 series
The 2BH1 943 is a side channel blower of the G-BH1 series from Elmo Rietschle. According to the data sheet, every G-BH type can be used as a vacuum pump and/or as a compressor in continuous operation over the whole range of the characteristic curve. Depending on the motor and mains frequency, a differential pressure of up to −310 mbar in vacuum operation and up to 280 mbar in pressure operation is permissible; the motor power is 17.3–25.3 kW at 50 Hz.Versions and motors
Listed are 15 order numbers from the Elmo Rietschle data sheets: IE3 three-phase motors (60 Hz also NEMA Premium). Voltage, current, power, permissible differential pressures, sound pressure level and weight are given with each version. Elmo Rietschle lists the versions with frequency converter in a separate data sheet; they are not listed individually here and are available on request.Volume flow
Elmo Rietschle gives the inlet volume flow of the G-BH types as a characteristic curve over the pressure difference (air 15 °C, 1013 mbar, tolerance ±10 %). According to Elmo Rietschle, the G-BH1 series covers 50 to 2,450 m³/h. Ehrler & Beck determines the volume flow for your operating point.Advice and service
Ehrler & Beck advises on selection and accessories such as vacuum and pressure limiting valves, supplies spare parts and carries out maintenance and repair.| Rated motor power 50Hz | 17.3 |
|---|---|
| Rated motor power 60Hz | 19.9 |
| Motor efficiency class | IE3 |
| Weight | 330 |
| Noise level | 73 dB(A) |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Design | Side channel blower for vacuum and pressure operation (according to the data sheet usable in continuous operation over the whole range of the characteristic curve) |
| 50 Hz | 380–420 / 660–725 V, 31.7 / 18.3 A, 17.3 kW, max. differential pressure −160 mbar (vacuum) / 170 mbar (pressure), 73 dB(A), IE3 |
| 60 Hz | 440–480 V, 31.4 A, 19.9 kW, max. differential pressure −120 mbar (vacuum) / 110 mbar (pressure), 77 dB(A), IE3 |
| 60 Hz (NEMA Premium) | 460 V, 31.4 A, 19.9 kW, max. differential pressure −120 mbar (vacuum) / 110 mbar (pressure), 77 dB(A) |
| Weight | approx. 330 kg |
| Motor | Three-phase, IE3, IP55, insulation class F |
| Approvals | UL 1450, CAN/CSA 22.2 No 68-09 |
| Volume flow | Characteristic curve in the data sheet; series G-BH1 according to Elmo Rietschle 50 to 2.450 m³/h |
| Reference conditions | Air 15 °C, 1013 mbar, tolerance ±10 %; differential pressures apply up to 25 °C inlet and ambient temperature |
| Sound pressure level measuring method | Measurement-surface sound pressure level to EN ISO 3744, 1 m, medium throttling, tolerance ±3 dB(A) |
