Oils and Lubricants from Pfeiffer
We offer various operating fluids and vacuum oils for your oil-lubricated vacuum pumps.
Selecting the appropriate oil for your vacuum pump can significantly extend its lifetime, ensuring it performs optimally and meets the specific demands of your process.
Simple mineral oils cover applications such as pumping air or noble gases as well as water vapor. Multi-distilled mineral oils can withstand chemical attack or ionizing plasma in demanding applications. Diesters are suitable for temperatures of up to 120°C.
Perfluoropolyethers (PFPE) are chemically inert and ideal for processes involving highly corrosive chemicals, e.g. in the semiconductor and thin-film industries, as well as for media containing more than 21% oxygen.
Why choose Pfeiffer genuine vacuum pump oils?
Optimal compatibility and performance
Pfeiffer offers a range of operating fluids specifically designed for our rotary vane vacuum pumps. These fluids are tailored to different applications and conditions, ensuring optimal compatibility and performance for your vacuum pump.
Enhanced longevity and reliability
Using the right oil boosts your vacuum pump’s lifespan. Mineral oils work well for air, noble gases, and water vapor, while PFPE oils – being chemically inert – are perfect for corrosive processes. This ensures reliable operation and less frequent maintenance.
Maintenance and cost efficiency
High-quality oils from Pfeiffer help maintain your vacuum pump, reduce wear, and ensure clean exhaust through integrated oil mist separators. This not only lowers operating costs but also minimizes environmental impact.
Perfluoropolyether (PFPE)
Chemically stable operating fluids
Perfluoropolyether lubricants are the most chemically stable operating fluids for vacuum pumps. They are suitable for pumping oxygen, ozone, halogens, organic and inorganic solvents, hydrochloric acid (HCl), boron trifluoride (BF3), hydrogen fluoride (HF), phosphine oxide (PO3) and fluorine.
Diester
For high-temperature and mildly corrosive applications
Diester lubricants are suitable for temperatures up to 120°C. They are resistant to mildly corrosive media, such as low solvent concentrations. It should be noted that the achievable ultimate pressure for two-stage vacuum pumps is usually about a decade higher than when mineral oil is used.
FAQ
What is the difference between hydrocarbon-based oils, perfluoropolyether (PFPE) and diester?
The differences between hydrocarbon-based oils, perfluoropolyether (PFPE), and diester oils are significant in terms of their chemical properties, applications, and performance.
Hydrocarbon-based oils
- Composition: Hydrocarbon-based oils are derived from mineral oils and are primarily composed of long-chain hydrocarbons.
- Applications: These oils are suitable for basic industrial applications such as pumping air, noble gases, and small amounts of water vapor. They are typically used in environments with low to moderate operating temperatures.
- Performance: They provide adequate lubrication, sealing, and cooling for standard applications but may not be suitable for more demanding conditions involving high temperatures or aggressive chemicals.
Perfluoropolyether (PFPE)
- Composition: PFPE oils are composed of perfluorinated polyether molecules, making them chemically inert.
- Applications: PFPE oils are ideal for processes involving excessive temperatures, aggressive chemicals, solvents, reactive gases, and oxygen-rich environments (greater than 21% oxygen concentration). They are commonly used in the semiconductor and thin-layer industries.
- Performance: These oils have a long service life and can be reused multiple times. They are highly resistant to contamination and can be professionally filtered or reprocessed. PFPE oils maintain their properties under extreme conditions, making them suitable for the harshest applications.
Diester
- Composition: Diester oils are synthetic oils made from diester molecules.
- Applications: Diester oils are suitable for applications involving temperatures up to 120°C. They are used in environments where higher stability and resistance to oxidation are required.
- Performance: Diester oils offer improved lubrication properties compared to hydrocarbon-based oils and remain stable at higher temperatures. They are also more resistant to chemical attack and ionizing plasma.
Overview
- Hydrocarbon-based oils: Suitable for basic applications with low to moderate temperatures.
- PFPE oils: Ideal for harsh applications involving extreme conditions and aggressive chemicals.
- Diester oils: Suitable for higher temperature applications, offering better stability and resistance to oxidation.
How do I know when my vacuum pump oil needs to be changed?
To determine when your vacuum pump oil needs to be changed, look out for the following signs:
- Oil color change: Vacuum pump oil will darken over time as it absorbs contaminants. If the oil turns from clear or light to dark brown or black, it's time for a change.
- Increase in operating temperature: If the pump is running hotter than usual, it could be a sign that the oil has degraded and is no longer providing adequate lubrication or heat dissipation.
- Oil contamination: If you notice any signs of contamination, such as the presence of debris or water in the oil, it is time to replace it. Contaminants can cause damage to the pump and affect its performance.
- Loss of vacuum performance: If your pump’s ability to maintain vacuum starts to decline, it could indicate that the oil has lost its efficiency and needs to be replaced.
- Oil change interval: Manufacturers, including Pfeiffer, typically recommend a specific oil change interval depending on usage. Refer to your pump's manual for this schedule.
Regularly monitoring the oil's appearance and performance will help ensure that your vacuum pump continues to run efficiently.
What happens if I do not change my vacuum pump oil regularly?
If you do not change your vacuum pump oil regularly, several issues can occur. Over time, the oil becomes contaminated with dirt, debris, and gases, which reduce its ability to lubricate and maintain a proper seal, leading to decreased vacuum pump performance. The oil also becomes less effective at dissipating heat, causing the pump to overheat and potentially damage components.
Additionally, old oil can cause increased friction and wear on the pump's moving parts, shortening its lifespan. The degradation of oil can lead to sludge buildup or the formation of acidic compounds, which may corrode the pump's internal components.
Neglecting regular oil changes can ultimately result in higher maintenance costs due to more frequent and costly repairs. Therefore, changing the oil as recommended by the manufacturer is crucial for maintaining efficient operation and extending the life of your vacuum pump.
How do I change the oil in my vacuum pump?
For detailed steps and visual guidance, please refer to the specific instruction manual for your vacuum pump model. You can obtain the manual by visiting the respective product pages on our website.
Always follow safety precautions, such as wearing protective gear and using a suitable collection receptacle, to avoid health hazards and environmental pollution.
Who can help me change the oil in my vacuum pump?
Our service technicians around the globe will be glad to assist you. Simply contact your nearest Pfeiffer service center.
Can I use one type of oil for all vacuum pumps?
No, you cannot use one type of oil for all vacuum pumps. Different types of vacuum pumps require specific oils that are compatible with their design and operational requirements. Using the incorrect oil can lead to suboptimal performance, increased wear, or even damage to the vacuum pump.