The Lubricant | Gear Pump LVO500 Oil (125 ml) is a Leybold LVO 500 mineral-based vacuum pump oil formulated for use in Leybold rotary vane vacuum pumps used with VTA and UIC wiped-film distillation systems. LVO 500 provides excellent lubrication, low vapor pressure, and good moisture absorption capacity to maintain vacuum pump performance between oil changes. Available in 125 ml bottles for top-up or small oil changes. Use only in rotary vane pumps — not in diffusion pumps.