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Witte Pumps & Technology GmbH Datasheets for Mechanical Seals

Mechanical seals including mechanical face seals, bellows, gas seals, and cartridge seals.
Mechanical Seals: Learn more

Product Name Notes
Radial shaft seals cover the drive shaft to the atmosphere outside of the pump. They are located permanently in the casing or casing cover. The sealing lip is on the...
Standard seal for extrusion melt pumps
The CHEM Magnet is in principle constructed in the same way as the CHEM but with a synchronous magnetic coupling forming the shaft seal. This operates slip-free, i.e. the pump...
The double mechanical seal with buffered fluid (DD) is suitable for a max. viscosity of 1.000 Pas, because the internal parts of the mechanical seal do not get in contact...
The quenched, internal mechanical seal (EQD) is an affordable alternative to classic double seals if the actual operating parameters allow for a single-acting seal, but the medium must be hermetically...
The single mechanical seal (ED) is the standard seal for WITTE CHEM pumps. It is suitable for max. viscosity of 10 to 50 Pas. Min. suction pressure: 1 bar (15...
The stuffing box is a simple seal for WITTE gear pumps. The operative range is similar to the viscoseal. It is suitable from low to high viscosities. The standard material...
The threaded shaft seal is the standard seal for WITTE melt pumps from the EXTRU and BOOSTER series. It is a dynamic seal for high viscosities and suction pressures. It...
The vacuum threaded shaft seal can alternatively be used with a leap seal as a static shaft seal. As with the stuffing box packing, the buffering medium forms the required...
The vacuum viscoseal with buffered stuffing box is the standard seal for WITTE POLY pumps. It is a combination of a dynamic (viscoseal) and a static (stuffing box) sealing system.
Vacuum mechanical seal (AD), buffered