Mechanical Seals

Mechanical Seals retain liquid or gaseous media within rotating equipment. They operate where the shaft of a pump or mixer passes through the housing and are separate from compression packing.

A mechanical seal is a specific sealing product for rotating equipment. Its sealing function is located around the shaft and prevents the process medium from escaping at that point. The category covers the mechanical sealing principle, not braided packing compressed in a stuffing box.

The equipment explicitly named consists of pumps and mixers. Mechanical seals are intended for rotating shafts that must retain a liquid or gaseous medium within the equipment. Other shaft seals, such as oil seals, V-rings and Alphaseal types, belong in the separate shaft-seal category.

First identify whether the equipment is a pump or mixer and where the rotating shaft passes through the housing. Then specify whether the medium is liquid or gaseous. Select a mechanical seal specifically and avoid confusing it with an oil seal, V-ring or compression packing.

Key attributes are pump or mixer application, rotating shaft, sealing location and liquid or gaseous process medium.

Frequently asked questions

A mechanical seal prevents liquid or gaseous medium from escaping from a pump or mixer where the rotating shaft passes through the housing. Check the machine, shaft passage and medium before selecting this sealing group.

No. Mechanical seals form a distinct sealing principle for rotating equipment. Compression packing is braided packing used in a stuffing box and belongs in the separate Compression Packing category.