Rod-piston seal 8x16x4 up PU
| Code | 48005202 | |
|---|---|---|
| In stock | 100 | pcs |
| Priceexcl. VAT | From PLN 7.40 | /pcs |
Rod-piston seal 8x16x4 up PU—
PLN 7.40excl. VAT
Price by quantityexcl. VAT
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Technical data
| Seal type | UP | |
|---|---|---|
| Material type | PU | |
| Brand | Aston seals | |
| Weight | 1 | g |
| Rod diameter d | 8 | mm |
|---|---|---|
| Groove Diameter D | 16 | mm |
| Seal width h | 4 | mm |
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.
| Can be used | Do 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 grease | High 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 gases | Strong 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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