Hot tapping allows the safe addition of one or more pipe connections to a pipe work system whilst still live. This may then be used to tie in other operating equipment, for bypass repairs or maintenance activities.

 

Benefits

• No downtime as process is performed on live pipe work

• Reliable connection as pressure tested prior to service

• Can be used to bypass/isolate sections of process pipe

• Can be used as entry point for line stop

 

The Process

A new connection is bolted or welded to the pipe work in the required location. The connection is pressure tested up to twice the normal working pressure to prove its integrity. A full bore valve is fitted to the flange and the hot tap machine to the valve.

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With the valve open, a modified pilot drill and hole saw cut the pipe and remove a coupon of metal which is retained by the pilot drill. The cutter is withdrawn through the valve which is then closed and the hot tap machine removed.

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We welcome evaluating your application and advising on the most suitable process for pipework isolation.