Flygt Active Seal Technology

This is a genuine Xylem‑Flygt spare part with patented Active‑Seal technology, specially for Flygt submersible sewage pumps.

The special angled‑vane ring spins with the pump shaft. It creates a dynamic pumping effect to fling away incoming contaminated sewage, stopping grit and abrasive particles from reaching the main mechanical seal face.

Introduction

Active Seal technology is ideal for products in continuous operation, where the demands on the seals’ ability to prevent leakage are high.

The Active Seal functionality is a unique zero-leakage solution applied to the inner seal of a double-seal system that prevents liquid from entering the motor. The viscous shear of the fluid in the laser-cut grooves creates a hydrodynamic pumping effect that directs any liquid on the stator side back to the buffer-fluid side of the seal.

By minimizing accumulated leakage into the stator housing and/or the inspection chamber, the Active Seal system enhances sealing reliability and minimizes downtime thanks to reduced risk for bearing and stator failure.

Active Seal technology is available for a selected range of Flygt Plug-in seals and Flygt double-sealing systems with separate single seals.

Active Seal technology is only available from Flygt for Flygt pumps.