DOLPHIN LB 1757 APumping speed 1,750 m³/hUltimate pressure 33 mbarDOLPHIN LB 2508 A
The Busch DOLPHIN LB 2508 A is a liquid ring vacuum pump with a nominal pumping speed of 2500 m³/h (50 Hz) or 3080 m³/h (60 Hz) and an ultimate pressure of 33 mbar. Ehrler & Beck advises on selection and service.
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- Pumping speed 2,500 m³/h 50 Hz 3,080 m³/h 60 Hz
- Ultimate pressure 33 mbar
- Rated motor power 75 kW 50 Hz 110 kW 60 Hz
Busch DOLPHIN LB 2508 A – liquid ring vacuum pump
The Busch DOLPHIN LB 2508 A is a liquid ring vacuum pump. The nominal pumping speed is 2500 m³/h (50 Hz) or 3080 m³/h (60 Hz), the ultimate pressure 33 mbar. Nominal motor rating 75 kW (50 Hz) or 110 kW (60 Hz).Features
- Robust: proven two-stage design
- Reliable: very high vapour and particle tolerance
- Flexible: materials from grey cast iron (EN-GJL-200) through various stainless steels to titanium, ATEX version (cat. 1(i)/2(o) IIC T5), operating liquids other than water, operation as a compressor possible
Advice and service
Ehrler & Beck advises on selection, accessories and service.| Pumping speed 50Hz | 2,500 |
|---|---|
| Pumping speed 60Hz | 3,080 |
| Ultimate pressure | 33 |
| Rated motor power 50Hz | 75 |
| Rated motor power 60Hz | 110 |
| Weight | 1,664 |
| Length | 180.8 |
| Width | 65 |
| Height | 80 |
| Inlet connection flange | DN 150 PN 10 |
| Outlet connection flange | DN 150 PN 10 |
| Noise level | 79 dB(A) |
| 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 |
|---|---|
| Nominal pumping speed | 2500 m³/h (50 Hz) / 3080 m³/h (60 Hz) |
| Ultimate pressure | 33 mbar |
| Max. pressure | 2 bar(g) |
| Rated motor power | 75 kW (50 Hz) / 110 kW (60 Hz) |
| Nominal speed | 735 min⁻¹ (50 Hz) / 880 min⁻¹ (60 Hz) |
| Sound pressure level (ISO 3744, 1 m, medium load) | 79 dB(A) |
| Dimensions (L × W × H) | 1808 × 650 × 800 mm (50 Hz) / 2088 × 650 × 800 mm (60 Hz) |
| Weight (approx.) | 1664 kg |
| Gas inlet | DN 150 PN 10 |
| Gas outlet | DN 150 PN 10 |




















