Duct Expansion Joints | McMaster-Carr

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203 Products

Selecting and Measuring Expansion Joints

For information about selecting pipe size, see Selecting and Measuring Pipe & Fittings.

High-Temperature All-Metal
Expansion Joints with Flanged Ends

These all-metal expansion joints can handle high temperatures up to 800° F.

Expansion Joints with Flanged Ends

The flanged ends on these expansion joints rotate for easy bolt hole alignment during installation.

Expansion Joints with Flanged
Ends for High Vibration

These expansion joints have a double-bulb design for extra movement and vibration absorption.

Expansion Joints with Sealing
Flanged Ends for Metal Pipe

Expansion Joints with Sealing
Flanged Ends for Plastic Pipe

Chemical-Resistant Expansion
Joints with Flanged Ends

The PTFE body on these expansion joints has a super-smooth surface that stands up to corrosive chemicals.

Expansion Joints with Flanged
Ends for Drinking Water

The EPDM lining in these joints meets NSF/ANSI 61 standard for use with drinking water.

Expansion Joint Reducers with Flanged Ends

Connect different pipe sizes in your line while adding a point of flexibility between them. These expansion joints absorb movement between two connected pipes to reduce stress, vibration, and noise.

Clamp-On Expansion Joints

Slip these joints over your pipe ends and tighten the band clamps for a secure hold.

Clamp-On Expansion Joints
for Drain, Waste, and Vent

These joints are designed for vertical use in drain, waste, and vent systems.

Expansion Joints with Socket
Connection for Plastic Pipe

Reduce stress, vibration, and noise in your plastic socket-connect piping system by creating a point of flexibility.

Expansion Joints with Threaded Ends

Connect male threaded pipe to these expansion joints to add a point of flexibility in your line that reduces stress, vibration, and noise.

Expansion Joints with Butt-Weld Ends

These joints weld to unthreaded pipe or another butt-weld fitting for a leak-resistant permanent connection.

Vibration-Damping Duct Connectors

Add a flexible joint to your system to reduce vibration caused by fans and blowers.

Selecting and Measuring Expansion Joints

Expansion Joints

High-Temperature All-MetalExpansion Joints with Flanged Ends

Expansion Joints with Flanged Ends

Expansion Joints with FlangedEnds for High Vibration

Expansion Joints with SealingFlanged Ends for Metal Pipe

Expansion Joints with SealingFlanged Ends for Plastic Pipe

Chemical-Resistant ExpansionJoints with Flanged Ends

Expansion Joints with FlangedEnds for Drinking Water

Expansion Joint Reducers with Flanged Ends

Clamp-On Expansion Joints

Clamp-On Expansion Jointsfor Drain, Waste, and Vent

Expansion Joints with SocketConnection for Plastic Pipe

Expansion Joints with Threaded Ends

Expansion Joints with Butt-Weld Ends

Vibration-Damping Duct Connectors

Vibration-Damping Duct Connectors

High-Temperature All-Metal
Expansion Joints with Flanged Ends

Expansion Joints with Flanged
Ends for High Vibration

Expansion Joints with Sealing
Flanged Ends for Metal Pipe

Expansion Joints with Sealing
Flanged Ends for Plastic Pipe

Chemical-Resistant Expansion
Joints with Flanged Ends

Expansion Joints with Flanged
Ends for Drinking Water

Clamp-On Expansion Joints
for Drain, Waste, and Vent

Expansion Joints with Socket
Connection for Plastic Pipe