How to assemble compression connections on Copper pipe?
author: peter@badavalve.com
2025-06-27
Here’s a concise summary of the steps for assembling compression connections on copper pipe:
Equipment: Adjustable spanners, compression fittings, copper pipe.
Steps:
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Assemble fittings
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Slide compression nut onto pipe, followed by the olive.
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Insert pipe fully into fitting until it reaches the tube stop.
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Slide olive and nut toward fitting body.
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Finger-tighten nut to secure.
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Tighten nuts
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Use open-ended or adjustable spanners on nut and fitting flats.
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Use a second spanner to prevent fitting from rotating.
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Do not overtighten – follow torque settings:
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| Size | Torque (Nm) |
|---|---|
| 15mm | 30–35 |
| 22mm | 45–50 |
| 28mm | 55–60 |
| 35mm | 105–110 |
| 42mm | 150–155 |
| 54mm | 240–245 |
Certified Lead-Free Bronze Press Fittings – DVGW, NF, PED, LR & 4MS