Find OEM vacuum pump oil equivalents, VPS replacement oil options, and genuine OEM oils for Leybold, Edwards, Busch, Welch, Becker, Stokes, and other vacuum pump brands.
Use this guide to match common vacuum pump oils by OEM name, viscosity, oil type, pump family, and application.
For most standard oil-sealed rotary vane vacuum pump applications, the VPS M-Series is the place to start. These mineral vacuum pump oils cover many common Leybold, Edwards, Busch, Welch, Becker, and general industrial vacuum pump oil applications.
Lower-viscosity mineral vacuum pump oil for smaller pumps, colder starts, and applications where lighter oil is specified.
Common cross-reference use: LVO 120-style applications, lighter Edwards oil applications.
Shop VPS M32General-purpose ISO 68 mineral vacuum pump oil for many rotary vane vacuum pumps.
Common cross-reference use: Leybold LVO 130, LVO 150, Edwards Ultragrade 19/70 direction, Busch ISO 68-style applications.
Shop VPS M68Heavier ISO 100 mineral vacuum pump oil for pumps and operating conditions requiring more viscosity and sealing support.
Common cross-reference use: Leybold LVO 100, Edwards Ultragrade 20 direction, higher-viscosity rotary vane applications.
Shop VPS M100Leybold LVO oils are commonly used in Leybold rotary vane pumps, Sogevac pumps, Trivac pumps, and specialty vacuum applications. Use the table below to identify the closest VPS replacement oil or specialty fluid.
| Leybold Oil | VPS Replacement / Equivalent | Oil Type | Notes |
|---|---|---|---|
| LVO 100 | VPS M100 | Mineral Vacuum Pump Oil | Common ISO 100 mineral oil direction for many rotary vane applications. |
| LVO 120 | VPS M32 | Mineral Vacuum Pump Oil | Lower-viscosity mineral oil option. Verify pump model. |
| LVO 130 | VPS M68 | Mineral Vacuum Pump Oil | Popular Leybold replacement oil direction for many Sogevac and rotary vane applications. |
| LVO 150 | VPS M68 | Mineral Vacuum Pump Oil | Verify application before substituting. |
| LVO 300 | VPS S100 | Synthetic Vacuum Pump Oil | Used where synthetic oil is preferred and compatible. |
| LVO 400 | Fomblin Y14/6 | PFPE Specialty Fluid | Specialty chemical-resistant fluid. Do not substitute without confirming process compatibility. |
| LVO 410 | Fomblin Y25/6 | PFPE Specialty Fluid | Specialty chemical-resistant fluid. Do not substitute without confirming process compatibility. |
| LVO 420 | Fomblin Y06/6 | PFPE Specialty Fluid | Specialty chemical-resistant fluid. Do not substitute without confirming process compatibility. |
| LVO 520 / LVO 521 | D704 Diffusion Pump Fluid | Diffusion Pump Fluid | For diffusion pump applications, not rotary vane pumps. |
| LVO 140, 170, 200, 210, 211, 220, 240, 250, 260, 310, 320, 330 | No standard VPS equivalent listed | Specialty / Application Specific | Contact us with your pump model, oil name, and process conditions. |
Edwards Ultragrade oils are used across Edwards rotary vane pumps, boosters, diffusion pumps, and industrial vacuum systems. The chart below expands the Edwards oil section with common pump applications, viscosity information, and VPS replacement directions.
| Edwards Oil | Oil Type | Viscosity | Typical Edwards Pump Applications | VPS Replacement / Direction | Notes |
|---|---|---|---|---|---|
| Ultragrade Performance 15 | Mineral Oil | 38.1 cSt @ 40°C | E2M0.7, E2M1.5, small rotary vane pumps | VPS M32 | Useful where cold start capability or low starting torque is needed. |
| Ultragrade Performance 19 | Mineral Oil | 48.6 cSt @ 40°C | RV series, E2M18, E2M28 | VPS M68 | Common Edwards rotary vane oil direction. Confirm pump and service conditions. |
| Ultragrade Performance 20 | Mineral Oil | 103 cSt @ 40°C | EH boosters, gearboxes, drive trains, large single-stage rotary vane pumps | VPS M100 | Heavier mineral oil used where sealing and higher viscosity are required. |
| Ultragrade Performance 70 | Mineral Oil | 70 cSt @ 40°C | E1M40 through E1M275, E2M40 through E2M275, E2S | VPS M68 | Large capacity two-stage rotary vane pumps, especially high-load or fast-duty cycles. |
| Ultragrade Endurance Extend 110 | Di-ester Oil | 98 cSt @ 40°C | nES and E2S pumps | Contact us | Application-specific synthetic/ester direction. Do not substitute with mineral oil without review. |
| Ultragrade Kinetic 46 | PAO Synthetic | 44 cSt @ 40°C | EOSi oil sealed screw pumps | Contact us | Used for oil sealed screw pumps pumping air, inert gases, and water vapor. |
| Ultragrade Kinetic 150 | PAO Synthetic | 150 cSt @ 40°C | GMB HV30000 and HV40000 boosters/blowers | Contact us | Industrial booster, blower, and dry pump applications. |
| Ultragrade Kinetic 220 | PAO Synthetic | 223 cSt @ 40°C | High capacity vacuum boosters and pressure blowers | Contact us | High-viscosity industrial booster/blower oil. |
| Fluid 201 / Fluid 201 US | Diffusion Mineral | 18 cSt @ 40°C / 23 cSt @ 25°C | Vapour boosters | Review D704 / D705 style diffusion pump fluids | For high vacuum industrial diffusion applications where silicone fluids cannot be tolerated. |
| L9 UHV Fluid | Diffusion Synthetic | 71.3 cSt @ 20°C | Diffstak, nHT, HT diffusion pumps | Contact us | Specialty UHV diffusion fluid. |
Vacuum Pump Supply carries genuine OEM Stokes V-Lube oils for Stokes Microvac oil piston pumps, Stokes Microvane pumps, Stokes boosters, and pressure blower applications.
| Stokes OEM Oil | Oil Type | Vapour Pressure | Viscosity | Application | Stokes Pump Family | Available Sizes / SKUs |
|---|---|---|---|---|---|---|
| V-Lube F OEM | Mineral Oil | 1.3 x 10-3 mbar @ 20°C | 105.4 cSt @ 40°C | Oil piston pumps working in standard applications. | Stokes Microvac | 5 Gal: 254-539-002 55 Gal: 421-780-001 |
| V-Lube G OEM | Mineral Oil | 1.3 x 10-3 mbar @ 20°C | 159.1 cSt @ 40°C | Oil piston pumps working in high temperature and high gas load applications. | Stokes Microvac | 5 Gal: 262-461-003 55 Gal: 421-793-001 |
| V-Lube H OEM | Mineral Oil | 5 x 10-3 mbar @ 20°C | 203.4 cSt @ 40°C | High capacity vacuum boosters and pressure blowers. | Stokes Boosters | 5 Gal: 419-699-001 55 Gal: 419-698-001 |
| V-Lube B OEM | Mineral Oil | 5.0 x 10-6 mbar @ 20°C | 94.3 cSt @ 40°C | Single-stage rotary vane pumps requiring heavier grade oil to create a vacuum seal. | Stokes Microvane 14–52 | 5 Gal / 55 Gal |
For Stokes Microvac oil piston vacuum pumps, review OEM Stokes V-Lube F for standard applications and OEM Stokes V-Lube G for higher temperature or heavier gas load service.
For Stokes vacuum boosters and pressure blowers, OEM Stokes V-Lube H is the main oil listed for high capacity booster and blower applications.
For Stokes Microvane 14–52 pumps, OEM Stokes V-Lube B is listed for single-stage rotary vane pump applications requiring heavier grade oil for vacuum sealing.
Common Busch oil replacement direction for rotary vane vacuum pump applications.
| Busch Oil / Application | VPS Replacement / Equivalent | Oil Type | Notes |
|---|---|---|---|
| VM 068 / ISO 68 Applications | VPS M68 | Mineral Vacuum Pump Oil | Common oil weight for many Busch R5 rotary vane pump applications. |
| VM 100 / ISO 100 Applications | VPS M100 | Mineral Vacuum Pump Oil | Verify operating temperature and pump model. |
| Synthetic Busch Oil Applications | VPS S100 | Synthetic Vacuum Pump Oil | Use only where synthetic oil is appropriate and compatible. |
Welch pumps are common in laboratory, university, and research applications. Many oil-sealed Welch pumps use mineral vacuum pump oil.
| Welch Oil / Application | VPS Replacement / Equivalent | Oil Type | Notes |
|---|---|---|---|
| General Welch Rotary Vane Oil Applications | VPS M68 | Mineral Vacuum Pump Oil | Common direction for many lab rotary vane applications. |
| Higher Viscosity Welch Applications | VPS M100 | Mineral Vacuum Pump Oil | Verify model and manual requirements. |
| Oil Type | Best For | Common Products |
|---|---|---|
| Mineral Vacuum Pump Oil | General oil-sealed rotary vane pump service | M32, M68, M100 |
| Synthetic Vacuum Pump Oil | Higher temperature or longer service interval applications | S100 Synthetic |
| PFPE Specialty Fluids | Chemical or oxygen-service applications where standard oils are not suitable | Fomblin Y14/6, Fomblin Y25/6, Fomblin Y06/6 |
| Diffusion Pump Fluid | High-vacuum diffusion pump systems | D704, D705, and other diffusion pump fluids |
| Flushing Fluid | Cleaning oil-sealed pumps before refilling with fresh oil | Vacuum Pump Flushing Fluid |
The correct oil helps protect the pump, improve sealing, maintain vacuum performance, and reduce premature wear. Oil that is too thin, too heavy, contaminated, chemically incompatible, or thermally degraded can shorten pump life and cause poor vacuum performance.
For many common oil-sealed rotary vane vacuum pump applications, start with the VPS M-Series: M32, M68, and M100. These cover many common mineral oil applications.
VPS M68 is the primary replacement direction for many LVO 130-style mineral oil applications. Always confirm pump model, operating temperature, and process conditions before substituting.
LVO 100 and VPS M100 are both commonly treated as ISO 100 mineral vacuum pump oil applications. Confirm your application before substituting.
No. The Stokes V-Lube F, V-Lube G, V-Lube H, and V-Lube B oils listed in the Stokes section are genuine OEM Stokes oils.
No. Fomblin PFPE fluids are specialty fluids used for chemical-resistant or oxygen-service applications. Do not substitute Fomblin for standard mineral vacuum pump oil unless the pump and process specifically require PFPE fluid.
Do not mix oil types unless compatibility is confirmed. When changing oil type, drain thoroughly and consider using flushing fluid before refilling with fresh oil.
Change oil when it becomes dark, milky, contaminated, low, or after pump service. Also change oil after rebuilds, process contamination events, or when vacuum performance begins to drop.
Send us your pump model, OEM oil name, current oil part number, or process details and we will help match the correct vacuum pump oil.
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