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Pneumatic seal BWA 25x35x6,0 PU

CodeBWA 0250 0350 060 B0
In stock278pcs
Priceexcl. VATFrom €1.54/pcs
Pneumatic seal BWA 25x35x6,0 PU—
€1.54excl. VAT

Price by quantityexcl. VAT

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Technical data

Properties
Seal typeBWA
Material typePU
Material codeB0
BrandArtic seals
Weight3g
Pneumatic seals dimension
Rod diameter d25mm
Bore Diameter D35mm
Width 16mm

Documents

Description

Pneumatic seal BWA 25×35×6,0 mm made of polyurethane (PU), compound B0. The BWA profile is used as a rod seal in pneumatic cylinders. Thanks to its flexible sealing lip it also works as a wiper, protecting the cylinder against dirt. Design features: rod seal profile for pneumatics, sealing lip with a wiping function, stable seating in the groove, for reciprocating motion. Technical data: Inner diameter d: 25 mm (≈ 0.98") Outer diameter D: 35 mm (≈ 1.38") Height H: 6,0 mm (≈ 0.24") Material: polyurethane (PU B0 – grey) Hardness: 90 ShA Maximum pressure: 20 bar Speed: up to 1 m/s Material PU B0: Polyether polyurethane with high abrasion resistance and good elasticity. Very low compression set, high resistance to hydrolysis and stable performance in pneumatic applications.

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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