The Leybold LEYVAC LV 140 is a heavy-duty industrial dry-screw vacuum pump designed for production applications requiring high pumping speed, clean vacuum and reliable continuous operation.

Delivering 125 m³/h at 50 Hz and 145 m³/h at 60 Hz, with an ultimate pressure of 1 × 10⁻² mbar, the LV 140 provides the pumping capacity required for large vacuum chambers, industrial furnaces, heat-treatment systems, coating equipment, drying and degassing applications. Its dry screw compression keeps vacuum lubricant out of contact with the pumped process gas, eliminating the oil contamination and backstreaming concerns associated with conventional oil-sealed vacuum pumps.

The 115140V30 configuration features a DN63 ISO-K inlet, DN40 ISO-KF exhaust, water/glycol cooling and three-phase 200–460 V operation. The 5.5 kW motor provides the capacity required for demanding industrial duty while maintaining substantially lower power requirements than the larger LV 250.

The LV 140 is particularly well suited to vacuum heat treatment, industrial furnaces, PVD and coating, drying, degassing, casting and other high-throughput production vacuum applications. Its excellent water-vapour handling capability makes it especially attractive for processes involving significant moisture loads, while its compatibility with RUVAC Roots boosters allows the system to be expanded when faster pump-down and higher throughput are required.

For customers currently using a large oil-sealed rotary-vane pump, the LV 140 provides a clean industrial alternative that removes vacuum oil from the process gas path while delivering serious pumping capacity and deep fore-vacuum performance.

The LEYVAC LV 140 is the sweet spot for customers who need industrial-scale dry vacuum without stepping all the way up to the LV 250.