Elastomer Bellow Seals

About Elastomer Bellow Seals

Elastomer Bellow Seals are mechanical seals commonly used in a variety of industrial sectors including oil and gas, chemical processing, water treatment and power generation. These seals rely on the properties of elastomeric materials to achieve effective sealing in a variety of applications.

Structural Advantages of Elastomer Bellow Seals

■ Axial Mobility:
Bellows can withstand large axial displacements, improving the fault tolerance of equipment. This mobility can absorb pipeline contraction/expansion, as well as axial movement of equipment bearings.

■ Angular Change Adaptability:
Bellows have a certain flexibility to adapt to angular changes between pipelines and equipment, reducing stress concentration.

■ Buffering Performance:
The flexibility of bellows can reduce pipeline vibration and impact loads, and play a role in buffering and vibration absorption.

■ Compactness: They are designed for limited space and limited packing depth, suitable for compact installation environments.

■ Self-alignment: With self-alignment function, it can compensate for excessive end play and radial runout of the shaft, thereby reducing the alignment requirements during installation.

■ Anti-solid accumulation: Some designs have non-blocking, single-wire springs, providing greater reliability than multi-spring designs and are not affected by solid accumulation.

■ Sealing:
The sealing rings at the ends of the bellows provide efficient sealing and perform well under high pressure, vacuum and other working conditions.

■ Corrosion resistance: The bellows made of elastomer material has excellent chemical corrosion resistance and is suitable for harsh working environments.

Application Scenarios

Due to its excellent sealing, flexibility and corrosion resistance, Elastomer Bellow Seals have a wide range of application scenarios in various industrial fields, mainly including the following aspects:

Chemical and petroleum industry:

• Seals for chemical pipelines, reaction devices, centrifuges and other equipment
• Telescopic connection of oil and gas pipelines

Power equipment industry:

• Bearing seals for steam turbines, automobile engines and other equipment
• Connection and buffering of hydraulic system pipelines

Aerospace field:

• Seals and vibration reduction of aircraft and rocket equipment
• Connection of spacecraft propulsion system

Food and beverage industry:

• Seals for food processing equipment pipelines
• Telescopic connection of corrosive medium pipelines

Medical device industry:

• Seals and connections of medical equipment
• Seals of joints of surgical robots

General industrial field:

• Bearing, piston and valve seals of various mechanical equipment
• Telescopic connection and shockproof of pipeline systems

It can be seen that Elastomer Bellow Seals are widely used in key equipment and pipeline seals in various industrial fields such as chemical, energy, aerospace, pharmaceuticals, and food due to their excellent performance. It is an indispensable and important sealing component.

Rubber Material Selection for Elastomer Bellow Seals

Please note that the “temperature range” and “chemical resistance” in the table are given based on general characteristics. The temperature resistance and chemical resistance of specific materials may vary depending on the product. The application environment and remarks are described based on the general use and characteristics of the rubber material. When selecting the rubber material of Elastomer Bellow Seals, it should be selected based on the specific working conditions and media characteristics.