Mechanical Seal BFS

Mechanical seal Huhnseal

BFS

balanced single cartridge seal

Huhnseal BFS is a balanced single mechanical seal specially designed for slurry applications. The spring package is placed outside of the product zone to avoid clogging. The use of this spring package allows for larger axial movement capabilities compared to conventional spring packages. The design is robust with premium materials from top suppliers. In the sealing area the surfaces are smooth with no sharp edges and corners to avoid inducing turbulent flow which will increase the wear.
Special rubber wiper protects the dynamic o-ring and groove from getting clogged and worn by abrasive slurry.

characteristics mechanical seal bfs

Zero-Flush Mechanical Seals designed for slurry applications
Non-clogging springs isolated from the slurry and surrounding environment
Seal face and holder profile minimizes turbulence and reduces wear
Excellent axial movement capabilities

Operating range mechanical seal bfs

Pmax = 25 bar Slurry with up to 60 % solid contents by weight
Temperature up to 80 °C without quench Speed up to 18 m/s

Seal faces
Standard silicon carbide faces with optional diamond
coating or tungsten carbide
Wear resistant design
Axially aligned seal profile of the wetted parts
help to avoid inducing turbulent flows that cause
excessive wear
Protected dynamic o-ring
Wiper protects the o-ring and groove from getting
clogged and worn by abrasive slurry
Robust design for slurry applications
Various metallurgy and coatings are available to
help reduce wear and corrosion
Non-clogging spring package
Springs are isolated from the slurry to prevent
clogging
Excellent axial movement capabilities
Design makes it possible for the seal to handle large
axial movement to simplify impeller adjustments
Zero – Flush Mechanical Seal
Seal faces are cooled and lubricated by the slurry.
No additional water flush is necessary which
provides substantial water savings