Maintaining your vacuum pump isn't just about performance — it's about reliability, longevity, and safety. One of the most overlooked but critical tasks? Changing or cleansing your vacuum pump oil.
We sat down with the Principal Engineer at JAVAC, who shared some key insights on why oil maintenance is vital — and how using the right type of oil can make all the difference in your system's performance.
Why Cleanse or Change Your Pump Oil?
Vacuum pump oil doesn’t last forever. Over time, it collects moisture, debris, and contaminants — especially if liquids accidentally get pulled into the pump. Some signs that your oil needs changing:
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Poor vacuum performance
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Oil looks grey or milky
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Strange odours from the unit
Failing to change contaminated oil can cause internal corrosion, reduced efficiency, and even long-term damage to your pump. That’s why routine oil maintenance is a must.
Important tip: Never mix mineral and synthetic oils.
Choosing the Right Vacuum Pump Oil
At HVAC Direct, we stock a full range of high-quality oils from JAVAC and VALUE — each tailored to specific pump requirements.
JAVAC Vacuum Pump Oil Range – Mineral Based
Available in 1L and 5L bottles.
| Product | Viscosity Grade | Code | Size |
|---|---|---|---|
| Shark | ISO 32 | VC2063 | 1L |
| N15 | ISO 46 | S21501 | 1L |
| N16 | ISO 100 | S21505 | 1L |
| #68 | ISO 68 | S40530 | 5L |
Key features of JAVAC #68 Oil:
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High-quality mineral oil
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Low lacquer and carbon forming tendency
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Excellent corrosion resistance
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Improved sealing and mechanical efficiency
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High film strength, minimal oil carry-over
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Suitable for a wide range of vacuum pumps
VALUE VPO Vacuum Pump Oil Series
VPO46H4L – 4L Mineral Oil
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Viscosity (40℃): 41.4~50.6 mm²/s
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Flash Point: 240°C
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Pour Point: -10°C
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Type: Mineral Oil
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Compatible with: VSV-020, VRD-4/8/8M
VPO68H4L – 4L Synthetic Di-Ester Oil
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Viscosity (40℃): 61.2~74.8 mm²/s
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Flash Point: 250°C
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Pour Point: -35°C
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Type: Synthetic, Di-Ester Oil
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Compatible with: VSV-020/022/028/040/065/100/160/200/300, VRD-16/16M/24/24M/30/30M
All VALUE oils are available in both 1L and 4L sizes.
Best Practice Tips from JAVAC Engineers
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Always check your oil before and after each major job
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If your pump ever pulls in liquid — change the oil immediately
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Match your oil viscosity grade to the pump model and climate conditions
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Stick to one oil type per pump (don’t mix mineral with synthetic)
Final Thought
Whether you're a field technician or a workshop pro, the right vacuum pump oil is essential to maximise your pump’s lifespan and performance. Shop our full range online and choose JAVAC or VALUE vacuum pump oils to keep your systems running clean and smooth.
Browse all pump oils at HVAC Direct: Click here
