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Central Alberta

1200mm AWWA C-301 Line Stop 

N.S. Pawliuk completed a 1200mm line stop on an AWWA C-301L concrete cylinder pipe, as well as a 900mm line stop during the 2023 construction season.

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Materials Selection

  • Line Stop Fitting: CS High Performance pipeline products thermo-plastic coated carbon steel linestop fitting with 304 stainless steel straps.

  • Bypass Tapping Sleeve: Romac FTS420 RomaCoat NSF 61 fusion bonded-epoxy. 

Key Points

  • The 1200mm line stop required a 36" hot tapped outlet, and the 900mm line stop required a 24" hot tapped outlet.

  • This thick pipe required drilling through aggregate. 

  • As with all line stops, the line stop fitting was  pressure tested prior to coring through the pipe to ensure no leaks would have occurred. 

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