Specifications include, but are not limited to: A. Description: Tapping sleeve, all stainless steel, as described herein, shall consist of a split stainless steel tee which shall have a rubber liner completely enclosed in the stainless steel assembly; all of which is galvanically passive to gray or ductile iron. Tapping sleeve shall be capable of maintaining a watertight seal around the exterior of the tapped pipe within the limits of the split shell. B. Standards: Unless otherwise stated, the tapping sleeves shall conform to the latest revisions of the following American Water Works Association Standards: 1. AWWA C111 Standard for Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings 2. AWWA C207 Standard for Steel Pipe Flanges for Waterworks Service, Sizes 4 In. through 144 In. 3. AWWA C220 Standard for Stainless-Steel Pipe, ½ In. and Larger 4. AWWA C223 Standard for Fabricated Steel and Stainless-Steel Tapping Sleeves C. Types of Tapping Sleeves: Tapping sleeve with a flanged outlet end shall be used with tapping valve with tap flanged end x mechanical joint end. Tapping sleeve with a mechanical joint outlet end shall be used with a resilient wedge gate valve with mechanical joint ends. D. Materials: 1. Tapping sleeve shell, lugs, flanged outlet end and M.J. outlet end and the test plug shall be stainless steel type 304, conforming to ASTM A-276. Bolts, nuts and washers shall be stainless steel type 304, in conformance with ASTM A-276. 2. The outlet branch shall be welded to the flange or M.J. outlet and the shell on the inside and outside. All welds shall be free from pinholes and shall be fully passivated in accordance with ASTM A-380. 3. Tapping sleeve shell gasket and the branch sealing gasket shall be made of virgin SBR, NBR or EPDM and must be permanently attached to the tapping sleeve at the factory. 4. Nuts shall be coated with an anti-seizing material such as Xylan to prevent galling during tightening. 5. The test port shall be welded to the outlet branch wall. 6. The test plug shall have PTFE tape or compound on threads to assist sealing and prevent galling.
