Mechanical Seals for Pumps

22.11.2024

What is a Mechanical Seal?

A mechanical seal is used to prevent fluid or gas leakage between the rotating shaft and the stationary pump housing. It plays a crucial role in maintaining system integrity, especially in industrial applications involving chemicals, high pressure or temperature.

How Does a Mechanical Seal Work?

The seal consists of two flat surfaces – one rotating with the shaft and one stationary in the pump housing. These surfaces are pressed together by springs or hydraulic forces. A thin film of fluid ensures lubrication and prevents overheating or wear.

Types of Mechanical Seals

Balanced and unbalanced seals
Pusher and non-pusher types
Cartridge seals

Seals typically have three sealing points: rotating surface, stationary surface and the interface between them, held in place by a gland or cover.

Benefits of Mechanical Seals

Leak Prevention

Mechanical seals reduce or eliminate leaks under pressure, allowing long-term, leak-free operation.

Extended Service Life

They handle high speeds and pressure, resist wear, and lower the frequency of maintenance.

Increased Safety

Seals prevent hazardous leaks, ensuring safer conditions when handling chemicals.

Shaft Protection

Properly installed seals prevent shaft wear and enhance pump reliability.

Reduced Contamination

Less bearing contamination and corrosion during normal operation.

Minimal Maintenance

Durable designs reduce the need for frequent adjustments or replacements.

Wide Range of Applications

Mechanical seals are used in oil & gas, water treatment, food processing, and chemical industries.

Where to Buy Mechanical Seals for Pumps?

At Power Rubber, we supply durable, high-performance mechanical seals suitable for demanding applications such as high temperature, pressure, or speed. Compatible with:

ABS, Alfa Laval, Ampco, Burgmann, Ebara, Grundfos, KSB, Flygt, Wilo, GEA, Viking, Varisco, Zenit, and more.