LEYVAC Dry screw vacuum pumps
Rugged vacuum pumps for industrial applications
LEYVAC dry screw vacuum pumps are a class of industrial vacuum pumps based on the screw principle. The LEYVAC series from Leybold is especially developed for the process industry, food and process applications, coating and display applications. They can simply be assembled by adapters to various vacuum systems, particularly the well-proven RUVAC WH700 and WS(U) and WA(U) series.
In terms of endurance and performance, the LEYVAC B range stands strong. Backed by dry pump technology for cleaner operations and high pumping speeds., this range is built to meet the demands of industrial process and coating applications. It is one of our most rugged, reliable and durable vacuum solutions. The LEYVAC B product line comprises of the models LEYVAC LV 80 B, LV 120 B and LV 160 B.
User advantages
Features at a glance
Dry pump technology
- No oil contact to process gases
- Only occasional gear oil change
Hermetically tight
- No shaft seals to ambient
- No oil leakage
- Safe pumping of toxic gases
High reliability
- Long service intervals of up to 5 years
- High uptime with limited maintenance
Performance enhancements
Direct coupling of roots booster pumps without frames for models WH 700 and WA(U)/WS(U) 251-1001
Nano-ceramic coating
On all internal gas-contact surfaces for superior corrosion resistance
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| Technical data | LV 80 | LV 80 C |
LV 140 | LV 140 C | |
| Nominal pumping speed without gas ballast at 50/60 Hz | m3/h | 80 / 96 | 80 / 96 | 125 / 145 | 125 / 145 |
| Ultimate pressure with seal and rotor purge | mbar | 1 x 10-2 | 1 x 10-2 | 1 x 10-2 | 1 x 10-2 |
| Power consumption at ultimate pressure at 50/60 Hz | kW | 2.9 / 3.2 | 2.9 / 3.2 | 3.9 / 4.3 | 3.9 / 4.3 |
| Weight, approx. | kg | 280 | 300 | 300 | 320 |
| Noise level | dB(A) | < 65 | < 65 | < 65 | < 65 |
| Intake connection | DN | 63 ISO-K | 63 ISO-K | 63 ISO-K | 63 ISO-K |
| Exhaust side connection | DN | 40 ISO-KF | 40 ISO-KF | 40 ISO-KF | 40 ISO-KF |
| Mains voltage (+/- 10%) | V | 200 - 460 | 200 - 460 | 200 - 460 | 200 - 460 |
| Nominal power at 50/60 Hz | kW | 4.1 | 4.1 | 5.5 | 5.5 |
| Nominal current at 50/60 Hz | A | 6 | 6 | 8 | 8 |
| Cooling | water/glycol | water/glycol | water/glycol | water/glycol | |
| Cooling water temperature | °C | 5-35 | 5-35 | 5-35 | 5-35 |
| Cooling water throughput | l/min | 3 | 3 | 3 | 3 |
| Water vapor tolerance with gas ballast 50/60 Hz | mbar | 20/30 | 20/30 | 125/160 | 125/160 |
| Water vapor capacity with gas ballast 50/60 Hz | kg/h | 1.24/2.3 | 1.24/2.3 | 11.5/18.0 | 11.5/18.0 |
| Permissible ambient temperature | °C | 5-45 | 5-45 | 5-45 | 5-45 |
| Protection class EN 60529 | IP | 54 | 54 | 54 | 54 |
| Dimensions (W x H x D) | mm | 814 x 375 x 550 | 814 x 375 x 550 | 895 x 400 x 567 | 895 x 400 x 567 |
- Process industry
- Food and packaging
- Coating
- Solar
