Function / Design Features
History / Mechanical Explanation
- For many years cast iron pipe was joined together at a union called a hub
- The connection was sealed using oakum and melted lead
[ Note: The image above requires the latest version of Shockwave, which is available for free download from the Macromedia site. ]
- A Canadian inventor produced a new style of coupling
- This new “Mechanical Joint” was introduced into the market in 1960
- A mechanically interlocking connection that became known as “No-Hub” joint
| Why No Hub (2 of 9) |
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