Shaft seals - FPM (Viton)
Materials
Rubber material: Fluorocarbon rubber (FPM)
Body: Steel DIN 1624
Spring: Steel T304
Operating conditions
Temperature: -20°C...+200°C (momentary +220°C)
Pressure: Approx. 1 bar
Surface speed: Max. approx. 15 m/s.
Maximum surface speed must be reduced approx:
- 1/3 if good grease lubrication
- 1/5 if seal with dust lip
- 1/3 if sealing lip without spring
- 1/2 if two sealing lips with spring (e.g. R-duo)
Attention!
GR-seal for demanding conditions is FPM coated also from the inside. This makes it available for use at high temperatures and with chemically aggressive substances.
WARNING! Burned FPM-rubber must be handled like corrosive substances.
