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MSS SP-111-2020


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MSS SP-111-2020 Gray-Iron and Ductile-Iron Tapping Sleeves

standard by Manufacturers Standardization Society, 05/01/2020

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To provide information for standardization of tapping sleeves used to make connections to existing mains.


MSS SP-111-2020 covers the performance and design requirements of gray-iron or ductile-iron tapping sleeves used in water and sewage systems. Tapping sleeves are used with tapping valves to permit connection to an existing main without interruption of service. Tapping valve requirements are not covered in this Standard Practice.

This Standard Practice covers the performance and design requirements of tapping sleeves of nominal pipe sizes from NPS 4 through NPS 48 (DN 100 through DN 1200), with flanged outlet branch connections from NPS 2 through NPS 42 (DN 50 through DN 1050).

Tapping saddles and fabricated tapping sleeves are not covered by this Standard Practice.