WPB

  • WPB

  • Description

    Description WPB rod wipers are a heavy duty press-fit single lip design with a rubber lip. The wiper lip does not protrude from the shoulder of the seal allowing a more compact arrangement when the cylinder is retracted. WPB wipers are available in imperial sizes * None Application None Materials Nitrile Rubber (NBR) + Metal

TECHNICAL DATA

Temperature -30°C/+200°C
Pressure None 50 MPa
Speed 1 m/s
Medias None Mineral hydraulic oils

MATERIALS

NBR

Nitrile rubber (NBR) is the general term for acrylonitrile-butadiene copolymer. The ACN content can vary between 18% and 50%. While the acrylonitrile content is important, the resistance to oil and fuel is more so. Conversely, the elasticity and compression set are not as good. The NBR has good mechanical properties and good wear resistance. However, its resistance to atmospheric agents and the ozone is relatively low.

Chemical resistance Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel)
Mineral oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Diluted acids, low-temperature alkaline and saline solutions
Water (up to +100°C max)
Compatibility issue Fuels with high aromatic content
Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichlorethylene)
Polar solvents (ketone, acetone, acetic acid, ethylene-ester)
Strong acids
Glycol-based brake fluids
Atmospheric and ozone agents
Temperature range -25°C/+100°C

 

METAL

None

Industry