The viscoseal is a dynamic seal that can be heated or cooled. It is the standard seal for WITTE EXTRU pumps. It is a dynamic sealing system. Its operative range is limited by the suction pressure and the viscosity of the fluid. The min. viscosity for this sealing system is approximate 10 Pas. To increase viscosity the viscoseal can be cooled.

Max. temperature: 450°C (850°F)
Viscosity: 10.000 to 40.000.000 mPas (cP)