Model CST-EX, CST-EX MJ Series - Extra Heavy Duty Tapping Sleeve w/ Triangular Bar
From Tapping Sleeves
Drop-in Bolts with Heavy-duty Lugs. Easy to install — lighter and fewer parts than mechanical joint iron tapping sleeves. All branch sections double welded to both shell and flange –. TIG inside/MIG outside. All metal (including welds) fully chemically passivated in accordance with ASTM A380.. Full hoop support and seal. Each sleeve hydrostatically tested to 1.5 times R.W.P. at factory. Each sleeve serial numbered – certified test records available. All sleeves provided with test outlet. Branch I.D. 0.5” larger than nominal size. Accepts full size shell cutter (except size on size). Broad range of options: Stainless steel or low alloy steel flanges, Special compound gaskets – EPDM, Nitrile (available upon request), Special steels – 304L, 316, 316L or other, stabilized grades (available upon request). Special application pressure ratings available (up to 600 P.S.I. depending on size). Ten Year Warranty.
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Product Overview
Tapping sleeve shall be made from a top shell section and a back shell section. The back shell section shall be a minimum thickness of 14 gauge, T-304 stainless steel and have lug bars MIG welded to the shell. Each lug bar shall be T-304 stainless steel of a minimum thickness of 7 gauge, and are MIG welded along the top and bottom edges. The top shell section (branch side) shall be a minimum thickness of 11 gauge T-304 stainless steel and have lug bars welded to the shell similar to the back shell. The branch shall be T-304 stainless steel of a minimum thickness of 14 gauge, rolled and seam welded. The branch shall be attached to the Top shell with an outside seam MIG weld and an inside seam TIG weld. The top shell shall have a virgin SBR branch gasket with a branch-side double O-ring seal, a hydraulic-lip seal, a main-side double O-ring seal and a contoured T-304 stainless steel insert molded ring. The test outlet shall be T-304 stainless steel, threaded for a 3/4-NPT test plug, and MIG welded to the branch. The test plug shall be a Teflon-taped, 3/4-NPT brass plug. Armor plates shall be TIG welded to the Top shell to aide in providing full hoop support. Flanged tapping sleeves shall have a flange welded to the branch with an outside seam MIG weld and an inside seam TIG weld. The flange shall be T-304 stainless steel or ASTM A36, meeting ANSI/AWWA C-207 Class D150, ANSI B-16.5 mating to ANSI B-16.1 Class 125 with recessed I.D. to accept flanged tapping valves. The flange gasket shall be virgin SBR and shall be attached to the flange with contact cement. MJ tapping sleeves shall have MJ gland segments TIG welded on the gasket side, MIG on the gland side to the branch. Gland segments shall be T-304 stainless steel of a minimum thickness of 0.25” and shall accept MJ tapping valves. The Back shell section shall be attached to the Top shell section using Xylan coated heavy hex nuts, T-304 stainless steel washers, and T-304 stainless steel 5/8-11x7-1/2” long oval neck track bolts. Both shells shall be lined with a 0.250” thick, virgin SBR, gridded, mat gasket with tapered ends to provide a 360° seal on the pipe. All welds and metal surfaces shall be chemically passivated. The tapping sleeve shall be CST-EX / CST-EX-MJ series as manufactured by Cascade Waterworks Mfg. Co. of Yorkville, IL or approved equal.
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