Products
LEYBONOL- Oils, Greases, Lubricants
LEYBONOL® − our well-known brand of high quality vacuum pump oils. LEYBONOL® has been exhaustively tested to the same rigorous standards with regard to performance and sustainability that our customers have come to expect from Leybold.
User friendly container sizes with new style packaging, a simplified order numbering system and an easy-to-use oil configurator help you making the right choice. As your oil experts, we will be pleased to answer any questions you may have concerning LEYBONOL® oils or its uses.
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Description
1. LEYBONOL LVO 1xx – Mineral Oil
LEYBONOL mineral oils are products distilled and refined from crude oil. These do not consist of precisely defined compounds but rather consist of a complex mixture.
The way in which the mineral oil is pre-treated and its composition is decisive as to the applications it will be suited for. Depending on the distribution of the hydrocarbons and the dominance of certain properties, mineral oils are grouped according to paraffin-base, naphthenic and aromatic. For the purpose of attaining especially low ultimate pressures, mineral oils must be selected on the basis of a core fraction.
The thermal and chemical resistance of mineral oils has been found to be adequate in the majority of applications. They offer a high degree of compatibility with elastomers and resistance to hydrolysis.
2. LEYBONOL LVO 2xx – Ester Oil
LEYBONOL ester oils are organic compounds which excel especially because of their high thermal resistance to cracking compared to mineral oils. Chemical resistance is generally quite good, but will depend on the type of ester oil.
Elastomer compatibility and resistance against hydrolysis are not as good compared to mineral oils.
3. LEYBONOL LVO 3xx – PAO oil
LEYBONOL Polyalphaolefin oils are synthetic hydrocarbons which are paraffin like, but have a uniform structure.
Thermal and chemical resistance is better compared to mineral oils. Elastomer compatibility and resistance against hydrolysis are comparable to mineral oils
4. LEYBONOL LVO 4xx – PFPE oil
LEYBONOL PFPE oils are synthetic oils which are only composed of carbon (C), fluorine (F) and oxygen atoms (O). The existing C-O and C-F bonds are highly stable.
For this reason PFPE oils are practically inert against all chemical and oxidising influences and have a high thermal stability. Perfluorinated polyethers are used when pumping strongly reactive or oxidizing substances like oxygen, ozone or nitrogen oxides as well as reactive substances like halogens or hydrogen halide.
5. LEYBONOL LVO 5xx – Diffusion pump oil
LEYBONOL pump fluids for oil diffusion pumps must exhibit a low vapor pressure at room temperature and must be able to resist thermal decomposition and oxidation. They permit high pumping speeds over a wide range of pressures.
Surface tension of the pump fluids must be high to reduce “creep” of oil films. They are chemically inert, exhibit a high flash point and the evaporation heat is low.
Mineral oils (LEYBONOL LVO 500 and LVO 510) for diffusion pumps are closely toleranced fractions of a high quality base product distilled with particular care.
These pump fluids are especially suited for work in a high vacuum.
Silicone oils (LEYBONOL LVO 520 and LVO 530) are composed of precisely defined chemical compounds and are highly resistant. Owing to their extremely low vapor pressure, silicone oils are particularly well suited as a working fluid. Even after numerous air inrushes, silicone oils suffer neither ageing nor mass spectrometrically apparent alterations. Strong mineral acids, alkalis and strong oxidants are capable of decomposing silicone oils.
LEYBONOL LVO 540 is a hydrocarbon compound and has been developed for utilisation in oil vapour jet pumps. It is thermally and chemically highly resistant and excels through a high degree of oxidation resistance. It delivers the essential high pumping speed of the vapour jet pumps in the medium vacuum range.
6. LEYBONOL LVO 7xx – Special lubricants
All special lubricants are summarised under the name of LEYBONOL LVO 7xx which are used in connection with special applications. For example, LEYBONOL LVO 700 is a H1 registered, extremely stable special lubricant for vacuum pumps.
This special lubricant has been developed for special applications where reactions with chemically active substances cannot be avoided.
7. LEYBONOL LVO 7xx – Special lubricants
All special lubricants are summarised under the name of LEYBONOL LVO 7xx which are used in connection with special applications. For example, LEYBONOL LVO 700 is a H1 registered, extremely stable special lubricant for vacuum pumps.
This special lubricant has been developed for special applications where reactions with chemically active substances cannot be avoided.
8. LEYBONOL LVO 8xx – Greases
LEYBONOL greases are solid to semi-solid substances which consist of the principal components base oil and thickener. The base oil provides most of the lubrication and will in most cases define the service temperature. The thickener binds the oil and can increase the lubricity or the thermal stability of the grease. Added to these two constituencies are additives which may improve the performance of the grease in specific areas depending on the specific application. Greases will reduce friction and wear, ensure movability of components, will seal off against contaminants or are used as anti-rust and anticorrosion agents.
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