Unox Rubber Expansion Joint

What is a Rubber Expansion Joint?

A rubber expansion joint is a type of flexible hose or pipe connector used to absorb movement, vibration, or misalignment between two piping systems or mechanical components. It consists of a flexible rubber bellows or tube surrounded by a flanged connector at each end, ensuring a secure connection to the adjacent piping or equipment. Designed to allow a certain amount of movement and flexibility while maintaining a tight seal and preventing leaks, rubber expansion joints are widely used in piping systems or equipment across various industries—including oil and gas, chemical processing, energy production, and marine engineering—to accommodate expansion, contraction, or other movements.

Rubber Expansion Joint Product Specifications

• Gasket: EPDM

• Material: Synthetic Rubber

• Max. Operating Pressure: 10 Bar

• Max. Operating Temperature: 130 °C

• Nominal Diameter: DN32 – DN300

• Flange Pressure Class: PN10 / PN16

• Connection Types: UKK30 Cast Flange, UKK35 Steel Flange, UKK40 Threaded Connection

General Features

• Compensates for expansion and contraction caused by temperature changes, balancing lateral and angular movements.

• Absorbs water hammer and prevents hydraulic shock.

• Equipped with a flanged, rotating design for easy installation.

• No need for additional gaskets or packing.

Application Areas

• Chillers

• Pumps

• Air compressors

• Ventilation systems

• Fans

• Cooling towers

• Thermal power plants

• Dam systems

• Power plants

• Iron and steel industries

• Shipyards

• Paper, PET, and recycling facilities