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We have a wide range of non-metal expansion joints to help you solve the most common challenges related to process equipment expansion and movement.

This includes products ranges in materials such as fabric, rubber or Teflon / PTFE expansion joints.

When temperature is high, movement is significantly large and pressure less than 35 Kpag, a fabric expansion joint is specified.  When temperature is below 200ºC, either a rubber or Teflon / PTFE joint is used.

Teflon expansion joints are used for temperatures below 316ºC and higher pressures, including full vacuum. Teflon expansion joints are most effective when the media is corrosive, such as sulphuric acid. For very high pressure we recommend PTFE lined stainless steel expansion joints.

 

Rubber expansion joints are selected to mitigate vibration impacts, in addition to absorbing thermal movement.

With applications below 200ºC. different rubber polymers are used depending on the media. There is no specific pressure limit due to the option to utilise reinforcement in our rectangular or circular expansion joints. We supply as either a standard joint, multi-convolutions, tied, hinged, gimbal, or in-line pressure balanced, up to 2200mm diameter.

Dog bone joints are used mainly in power generation applications, connecting the turbine to the condenser – these can be specified in different polymers and associated steel work.

CHEMICAL PROCESSING INDUSTRY


Our non-metal expansion joints can handle corrosive chemicals to a maximum temperature of 240°F. The special elastomers in the expansion joints permit their use with abrasive slurries and a variety of chemicals. Additionally, they help eliminate motion, vibration, and stress.

HVAC


Rubber expansion joints reduce the many noise and vibration problems that occur in HVAC piping systems. They are practical with chilled water and condenser water piping, on both the suction and discharge sides of pumps, adjacent to compressors, and in chillers used in hospitals, hotels, apartment complexes, schools, and office buildings.

MARINE


Our rubber expansion joints help control vibration in this corrosive environment, improving operating efficiency. Rubber joints are also used on circulating water lines, both hot and cold, and in the power generation system.

POWER


Our expansion joints are used in thermal and nuclear electrical generation plants. They control the thermal expansion and contraction that occurs when pressure is applied to the piping systems. These units are found in water cooling lines, steam turbine lines, condensate lines, and in aeration systems.
Our wide range of non-metal expansion joints have many key advantages:

Flexible rubber joints are low cost and can save the additional cost impact of operational downtime and repair costs of pumps and compressors. Our products are available in a broad spectrum of styles and sizes which eliminates the need for custom made joints.

Pulsating equipment such as pumps and compressors generate noise and vibration, which reduces efficiency in adjacent equipment and impairs working conditions for operators. Rubber expansion joints reduce such impacts, while preventing destructive vibrations that might otherwise cause ruptures and leaks.

Rubber expansion joints are manufactured to withstand corrosive chemicals. They are finish-coated with HYPALON to provide protection against acid fumes and ozone attack.

Flexible, lightweight rubber joints can be inserted in a minimum of space. For pipes up to 205mm, only 152mm face-to-face is needed.

They can withstand strong surge pressures without shattering due to their tensile strength. Our products allow four-axis movement and eliminate problems of pipes buckling or pulling apart.

Rubber joints are installed quickly and efficiently because they have extreme flexibility and light weight construction.

Rubber joints do not crack or fracture under repeated flexing. Our products have a remarkably long life expectancy, even under adverse conditions, because they are made only from the finest grades of rubber and other materials.

Unlike metal expansion joints, flexible rubber joints can stand up to the extreme of temperature and pressure. Our products, depending on styles, can stand up to pressure of 214PSIG and maximum temperature of 240ºF.

Because of its non-conductive characteristics, rubber makes the best expansion joint material for machinery where electrolysis can be a problem - rubber joints break electrolytic circuits.

Our products are available in an impressive range of types and sizes. They can accommodate pipes from 25mm to 610mm, with additional sizes available to custom order.