• Custom made to your requirements
• Round or Square
• Reducers
• Flanged
• Sleeve Type

• Multiple Anchor
   

Mercer duct connectors are not to be confused with wrap around Fiberglass or other lightweight materials used in heating and ventilating systems. Our handbuilt duct connectors are another heavy duty industrial product. They can be used in high pressure, high temperature air applications or where the gas is some industrial by product that is highly corrosive and the duct connector must be leak proof.
 

Rather than flanged ends, we often supply slip on designs that are clamped or banded. Depending on the specified movements, the body of the expansion joint may have an arch or arches similar to piping expansion joints or they may be straight or ballooned.

Mercer Rubber joints do not get up to high enough temperatures for applications in boiler breaching, but they are used in a temperature range as high as 400° F and commonly located in the hot high pressure duct work in waste water and sewage treatment plants. They are used throughout the chemical industry, and we have supplied diameters as large as 145" for wind tunnels at both military and civilian research centers.

If you need an unusual duct connector, send the inquiry on to us. It is most likely we can build to your exact specifications and provide just what is needed.

Picture 1 – A rectangular heavy duty flexible duct connector installed in the top horizontal discharge of a boiler forced draft blower. Pressure 12psi.
Picture 2 – Concentric reducers installed in the suction and discharge air connections of a positive displacement high pressure blower, reduce stress to the flanges and facilitate hook-ups.
Picture 3 – Round duct connectors installed in the duct work of a sewage treatment plant allow for major hot duct expansion.