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Selecting and Measuring Expansion Joints
For information about selecting pipe size, see Selecting and Measuring Pipe & Fittings.
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Chemical-Resistant Expansion Joints with Flanged Ends

- For Use With: Coolant, Hydrochloric Acid, Water
- Temperature Range: -0° to 400° F
- Maximum Pressure: See table
- Maximum Vacuum: 29 in. of Hg @ 72° F
The PTFE body on these expansion joints has a super-smooth surface that stands up to corrosive chemicals. Joints have a triple-bulb design that provides excellent vibration absorption, reducing stress on your piping system. The flanges mate with a same-size flat-surface Class 150 flange without the need for a gasket. Limit rods are attached to the flanges to prevent overextension.
For technical drawings and 3-D models, click on a part number.
Distance | Threaded Bolt Holes | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Flange OD | Pipe Size | Lg. | No. of Bolt Holes | Compression | Expansion | Offset | Max. Pressure | Expansion Joint Type | Flange Material | Bolt Hole Thread Size | Each | |
Ultra-Corrosion-Resistant Coated PTFE Plastic | ||||||||||||
5" | 1 1/2 | 2" | 4 | 1/2" | 1/2" | 1/4" | 130 psi @ 72° F | Triple Bulb | Iron | 1/2"-13 | 0000000 | 0000000 |
6" | 2 | 2 3/4" | 4 | 3/4" | 3/4" | 3/8" | 130 psi @ 72° F | Triple Bulb | Iron | 5/8"-11 | 0000000 | 000000 |
7" | 2 1/2 | 3 3/16" | 4 | 3/4" | 3/4" | 3/8" | 130 psi @ 72° F | Triple Bulb | Iron | 5/8"-11 | 0000000 | 000000 |
7 1/2" | 3 | 3 5/8" | 4 | 1" | 1" | 1/2" | 130 psi @ 72° F | Triple Bulb | Iron | 5/8"-11 | 0000000 | 00000000 |
9" | 4 | 3 5/8" | 8 | 1" | 1" | 1/2" | 130 psi @ 72° F | Triple Bulb | Iron | 5/8"-11 | 0000000 | 00000000 |
11" | 6 | 4" | 8 | 1 1/8" | 1 1/8" | 9/16" | 130 psi @ 72° F | Triple Bulb | Iron | 3/4"-10 | 0000000 | 00000000 |
13 1/2" | 8 | 6" | 8 | 1 1/8" | 1 1/8" | 9/16" | 120 psi @ 72° F | Triple Bulb | Iron | 3/4"-10 | 0000000 | 00000000 |