The double sphere rubber expansion joint is a flanged flexible expansion joint, available with 2 inch/3 inch/4 inch/6 inch flange diameter, NR, EPDM, or Neoprene material, carbon steel galvanized flange material， and the pressure and flange material can be customized.

Features

• The double sphere flanged rubber expansion joint is compact in size and lightweight, featuring good elasticity and facilitating easy installation and maintenance. It can reduce the structure-transmitted noise during operation and has a strong shock absorption ability.
• It can produce lateral, axial and angular displacement during installation, and is not restricted by the pipe's non-concentricity and the flange's non-parallelism.
• Twin sphere rubber joints can more effectively prevent corrosion in high-temperature, acid-alkali and oil-resistant pipelines, and the medium's erosion of the rubber joint increases its service life.
• 2 inch/3 inch/4 inch/6 inch flexible rubber joints are available, with good comprehensive performance, and are widely used in various industries and pipeline matching.

Specifications

Dimension (Unit: mm)

Applications

Tips: What are the materials of rubber expansion joints

Rubber expansion joints can be made from a variety of materials, depending on the application, fluid type, temperature, and pressure conditions. Below is a summary of common rubber materials used in expansion joints, along with their characteristics and typical applications:

1. Natural Rubber (NR):
   Excellent abrasion resistance and flexibility. Ideal for water and slurry.
   Not suitable for oil or chemicals.
2. Nitrile Rubber (NBR):
   Good resistance to oils, fuels, and grease.
   Poor weather and ozone resistance.
3. Neoprene (CR):
   Resistant to moderate oil, weather, and ozone.
   Used in marine and industrial applications.
4. EPDM (Ethylene Propylene Diene Monomer):
   Excellent for water, steam, acids, and weather.
   Not suitable for oil or hydrocarbons.