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Piston seal PSO 40x29x4,2 DN

CodePSO 0400 0290 042 DN
In stock71pcs
Priceexcl. VATFrom PLN 11.29/pcs
Piston seal PSO 40x29x4,2 DN—
PLN 11.29excl. VAT

Price by quantityexcl. VAT

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Technical data

Properties
Seal typePSO
Material typePU
Foreign code2EPSO268
BrandArtic seals
Weight3g
Hydraulic seals dimension
Groove Diameter D40mm
Groove width H4,2mm
Groove Diameter d29mm

Documents

Description

PSO piston seal 40×29×4,2 mm, code: 2EPSO268 (manufacturer designation: PSO 0400 0290 042 DN), manufactured by Artic Seals (Italy). A single-acting seal used in hydraulic cylinders, designed to be installed in the piston groove. Thanks to its narrow design and precise geometry, the PSO profile provides sealing in the direction of pressure while limiting friction. Design features: single-acting piston seal, compact profile – easy installation in the piston groove, narrow sealing lip ensuring stable operation, intended for hydraulic power applications. Technical data: Inner diameter d: 29 mm (≈ 1.14 inches) Outer diameter D: 40 mm (≈ 1.57 inches) Height H: 4,2 mm (≈ 0.17 inches) Material DN: polyurethane 98 ShA (pink) + NBR Maximum pressure: up to 400 bar Working speed: up to 0,5 m/s SKU: 25152

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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