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Static seal SSA 81x74,8x6

CodeSSA 0810 0748 060 C0
AvailabilityOn request
Static seal SSA 81x74,8x6—
PLN 7.40excl. VAT

Technical data

Properties
Seal typeSSA
Material typePU
Material codeC0
Foreign code2ESSA618
BrandArtic seals
Weight5g
Hydraulic seals dimension
Groove Diameter D81mm
Groove width H6mm
Groove Diameter d74,8mm

Documents

Description

Static seal SSA 81x74,8x6 (code: 2ESSA618 / SSA 0810 0748 060 C0) is a static seal for hydraulics and pneumatics, also known as Dualseal. Material: polyurethane TPU, compound C0 (caprolactone-based): resistant to abrasion, wear and compression set, stable in contact with hydraulic oils and greases. Design: the SSA profile has four sealing lips, two outer and two inner, which give a double seal. Fitted in its seat, the flexible material presses against the mating surfaces. Used in valve blocks, port connections, covers and screw joints. Technical data: Outer diameter (D): 81 mm Inner diameter (d1): 74.8 mm Height (H): 6 mm In inches (D x d1 x H): 3.19 x 2.94 x 0.24

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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