Materials

• Thermoplastic polyurethane, red
• Particularly wear-resistant and extrusion-resistant sealing material, very elastic and therefore easy to install
• Very good hydrolysis resistance
• Hardness: 95 Shore A
• Temperature range: -35°C to 110°C
• Application: for standard hydraulic conditions up to 400 bar
• FDA approval

• Molded HPU, red
• Particularly wear-resistant and extrusion-resistant sealing material, very elastic and therefore easy to install, excellent hydrolysis resistance in the most common hydraulic fluids and „oil in water“ emulsions
• Hardness: 94 Shore A
• Temperature range: water up to 90°C, hot air up to 100°C
• Application: Standard hydraulic conditions up to
  400 bar

• Nitrile butadiene rubber, black
• Abrasion-resistant sealing material, meets the frequent customer request for easy-to-install seals in particular
• Hardness: 85 Shore A
• Temperature range: -40°C to 100°C
• Application: for standard hydraulic conditions up to 250 bar

• Hydrogenated acrylonitrile butadiene rubber, green
• Abrasion-resistant sealing material, meets the frequent customer requirement for easy-to-install seals in particular
• Hardness: 85 Shore A
• Temperature range: -40°C to 150°C
• Application: for standard hydraulic conditions up to 250 bar
• With FDA approval on request

• Fluororubber, brown
  Particularly temperature and chemical resistant sealing material
• Hardness: 85 Shore A
• Temperature range: -20°C to 200°C
• Application: for standard hydraulic conditions up to 250 bar
• FDA approval

• Ethylene-propylene-diene rubber, black
• Very good resistance to weathering, ozone, chemicals and ageing (not resistant to mineral oil)
• Hardness: 85 Shore A
• Temperature range: -50°C to 150°C (steam briefly up to 200°C)
• Application: Hot water and steam, diluted acids and alkalis

• Ethylene propylene diene rubber, black
• Sulphur-cured EPDM with KTW and FDA approval. Specially developed for food contact! Very good resistance to weathering, ozone, chemicals and ageing (not resistant to mineral oil)
• Hardness: 87 Shore A
• Temperature range: -50°C to 100°C, briefly up to 120°C (water vapor briefly up to 180°C).
• Application: (drinking) hot water and steam
• FDA approval

• Methyl vinyl silicone rubber MVQ, blue
• Easy-to-install sealing material, particularly resistant to weathering, ozone and ageing, good electrical insulation properties, very good resistance to hot air
• Hardness: 85 Shore A
• Temperature range: -60°C to 220°C
• Use: under standard hydraulic conditions up to 250 bar
• Available with FDA approval on request!

• PTFE pure – polytetrafluoroethylene, white
• Best chemical resistance, particularly good sliding properties, also suitable for use in the food industry
• Temperature range: -260°C to 260°C (short-term 320°C)
• FDA approval

• PTFE filled I glass / MoS2 polytetrafluoroethylene, light gray
• PTFE filled with 20% glass fiber and 5% MoS2
• Material specially developed for hydraulic applications with high extrusion resistance and high elongation at break. The special design of the fillers enables the production of sharp sealing edges and therefore particularly efficient seals.
• Temperature range: -200°C to 260°C

• PTFE filled II bronze 40% polytetrafluoroethylene, brown
• PTFE filled with 40% bronze and pigments
• Comparable to PTFE glass MoS2 in terms of performance characteristics, but more expensive due to the higher specific weight. Of course, all standard compounds are also available:
• PTFE/carbon –
• PTFE/graphite –
• PTFE/glass fiber

• Polytetrafluoroethylene, blue-green
• PTFE filled with 1% pigment (and optionally 15% glass)
• Best chemical resistance, particularly good sliding properties and increased resistance to gap extrusion compared to PTFE pure
• Temperature range: -260°C to 260°C, (briefly up to 320°C)

• Polytetrafluoroethylene, dark gray
• PTFE filled with 47% bronze and pigment
• Comparable to PTFE II in terms of performance characteristics, but optimized for special resistance to gap extrusion
• Temperature range: -260°C to 260°C (briefly up to 320°C)

• Polytetrafluoroethylene, black
• PTFE filled with 24% carbon and 1% graphite
• For improved emergency running properties
• Temperature range: -260°C to 260°C (briefly up to 320°C)

• Polytetrafluoroethylene, black
• PTFE filled with 24% carbon and 1% graphite
• For improved emergency running properties
• Temperature range: -260°C to 260°C (briefly up to 320°C)

• Ultra high molecular weight polyethylene has a high resistance to abrasive wear, very good impact behavior and is oxidation resistant.

   

• It is particularly suitable for water hydraulics and ceramic coatings. UHMW-PE is generally classified as safe for food applications. (GRAS)

• Polyoxymethylene , white
• Sliding material with high compressive and extrusion strength, very good machinability, low water absorption
• Temperature range: -40°C to 100°C
• Application: Guide rings, backing rings
• FDA approval

• Polyamide, natural white
• Sliding material with equally high compressive and extrusion strength, but more demanding to machine
• Temperature range: -40°C to 100°C
• Application: Guide rings, backing rings

Polyetheretherketone (abbreviated to PEEK) is a high-temperature resistant thermoplastic and belongs to the polyaryletherketone group of substances. Its melting temperature is 335 °C.

PEEK is resistant to almost all organic and inorganic chemicals. It is also resistant to hydrolysis up to around 280 °C. However, it is not resistant to UV radiation, concentrated nitric acid, generally acidic oxidizing conditions and to some halogenated hydrocarbons and aliphatic hydrocarbons at higher temperatures. It dissolves completely in concentrated sulphuric acid at room temperature.