Expansion compensators are used to absorb pipe motion in systems with diameters (up to 4” in steel and 3” in copper). The standard compensators allow 2″ pipe motion, 1-3/4″ compression and 1/4″ extension. The units supplied by Keystone Steam Supplies provide you with a solution to take up thermal growth in the most cost-efficient way.
Available Expansion Compensators
Expansion compensators are usually not stock items and are made-to-order. Please contact us for questions, quotations and inquiries. If we do have any expansion compensators currently in stock they will be listed here.
Available for both Steel Piping Systems and Copper Piping Systems
Copper or steel cores
Do you still have questions? Are you looking for pricing information or to place an order?
Do you have questions about expansion compensators?
How are Keystone's expansion compensators pressurized?
Unlike most standard models, the expansion compensators we supply are pressurized externally rather than internally. This external pressurization principle eliminates the possibility of the bellows buckling. This is an advantage because bellows buckling is one of the major causes that lead to compensator failure.
Expansion joints for larger diameter piping systems (up to 144”) are also available.
What information is needed in order to get a quote?
The more information you can provide will help us prepare a quote for you. To help, please know as much of the following as possible:
- Pipe size and Working pressure
- Overall uninterrupted straight length of pipe run
- Medium in the piping system (steam, water, etc)
- Temperature of the medium
What systems are these expansion compensators designed for?
These pressure expansion compensators are designed for either steel or copper piping systems. For steam systems, they can handle maximum operating temperatures of up to 750 degrees Fahrenheit, maximum working pressures of 200 PSI and maximum test pressures of 300 PSI. Standard units are manufactured with male threaded ends, and have stainless steel bellows, and steel shroud and fittings. Other connection styles such as sweat, weld and flanged are also available.
For Copper Piping Systems, the compensators can handle maximum operating temperatures of up to 400 degrees Fahrenheit, maximum working pressures of 200 PSI and maximum test pressures of 300 PSI. Standard units are manufactured with female ends, and have stainless steel bellows and shroud and copper tube ends. Other connection styles are also available.