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Rod seal RSD 25x31x3,2 PU

CodeRSD 0250 0310 032 C0
AvailabilityOn request
Rod seal RSD 25x31x3,2 PU—

Technical data

Properties
Seal typeRSD
Material typePU
Material codeC0
Foreign code2ERSD804
BrandArtic seals
Weight2g
Hydraulic seals dimension
Rod diameter d25mm
Groove Diameter D31mm
Seal width h3,2mm

Documents

Description

Rod seal RSD 25x31x3,2 PU [2ERSD804] is a double-lip sealing ring made of polyurethane C0. This is a product of the Italian manufacturer Artic Seals, intended for use in hydraulic cylinders. Technical data: Working pressure: up to 400 bar Linear speed: up to 0,5 m/s Hardness: 93 Shore A ±2 Material: polyurethane C0 with high abrasion resistance and low compression set Rod seal RSD 25x31x3,2 PU [2ERSD804] features a design that prevents the stick-slip effect and supports sealing performance at low temperatures. The additional lip stabilises the seal and protects it against external contamination. Seal size: 25x31x3,2 mm Manufacturer code: [2ERSD804] Material: Polyurethane (PU)

Material

PU / TPU / H-PU (polyurethane)

  • Standard PU / TPU-30 °C to +80 °C

Best for high pressure and abrasion, in mineral hydraulic oil. Standard PU must never meet hot water, steam or brake fluid, or run hotter than +90 °C.

Chemical resistance
Can be usedDo not use
Extreme pressure and pulsation (up to 40-50 MPa, very resistant to extrusion into the gap)Hot water and steam with standard PU: hydrolysis, it breaks down into powder
Abrasion, friction, cutting and tearing (4-5 times tougher than NBR)Glycol brake fluid (DOT 3, DOT 4, DOT 5.1): swells quickly
Mineral hydraulic oil (HL, HLP) and greaseHigh temperatures above +90 to +100 °C with standard TPU: it softens
Fuel oil, diesel and technical oils (aliphatic hydrocarbons)Strong (concentrated) acids and alkalis: sulfuric, nitric, caustic soda
Ozone, weather and sunlight (does not crack from weather)Acetone, MEK, toluene, benzene, dichloromethane (polar and aromatic solvents)
Water-based fire-resistant fluids HFA, HFB (only special H-PU)Synthetic ester oils and fire-resistant fluid HFD-R
Dry compressed air and technical gasesStrong alcohols (methanol, ethanol): swelling

Water and heat destroy standard PU: above +50 to +60 °C in water or damp oil it turns into a sticky paste or crumbles. If the system contains water or an emulsion, use only H-PU (hydrolysis-resistant).

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