Equipment, Flex & Terminal Connections ยท Equipment & Terminals

Acoustic flex connector

Noise-control connection

ConnectionClamped/sealed connection
SupportWide supports

Before you start

  • Confirm the acoustic connector material, approved length, system classification, temperature limit, and support method.
  • Inspect the liner, core, jacket, and end connections for damage or exposed fibers.
  • Verify the connector is allowed for the specific air system.
  • Keep it away from heat sources and sharp edges.

Tools and materials

Approved acoustic flex connector, compatible clamps or bands, sealant system, wide supports, edge protection, cutter, marker, and PPE required by the product.

Lay it out

  1. Keep the connector straight and as short as the approved design allows.
  2. Plan supports so the liner cannot bunch.
  3. Maintain clearance from heat and service hazards.

Set and support it

  1. Support both adjoining ducts independently.
  2. Use wide supports.
  3. Keep the connector relaxed and fully extended.

Make the connection

  1. 1

    Inspect the liner and air barrier at both ends.

  2. 2

    Seat the first end fully and secure it.

  3. 3

    Align the second connection without twisting the connector.

  4. 4

    Secure the second end.

  5. 5

    Seal the air barrier at both connections.

  6. 6

    Support the connector so the liner stays straight.

  7. 7

    Inspect the inside for bunching or exposed fibers.

Check the install

  • The liner remains straight.
  • No exposed fiber enters the airstream.
  • The connector is not sharply bent.
  • Both ends are secured and sealed.
  • The material remains clear of heat sources.

Common mistakes

  • Using acoustic flex in a system where it is not allowed.
  • Bunching the liner while tightening.
  • Leaving exposed fibers.
  • Using the connector to make a hard offset.

Stop and ask

Stop if the material is not approved for the system classification, temperature, or service, or if the liner cannot remain straight and intact.