11.50 Shaded area indicates change Rev. 2-16 MUELLER ® LINE STOPPER FITTING WELDING TYPE FOR THIN WALL STEEL PIPE - 275 PSIG o C atalog number – H-17275 Completion Cap o Sizes – 6"x4", 6", 8" o For use on thin wall steel pipe Completion Cap Bolts and Nuts o Fittings for Thin Wall Steel Pipe can be recognized by added ears Completion Plug on flange, red paint and “THIN WALL” cast in plug. O-ring o O-ring sealed cast iron (ASTM A126 CL.B) Completion Plug with equalizing valve (part # 580912) o Completion Cap cast iron (ASTM A126 CL.B) o Flange, fitting top and bottom halves are forged steel (ASTM A105) o Class 150 flange complies with dimensional requirements of ANSI B16.5 o 275 psig** (1896 kPa) maximum working pressure at 100F (38C) Test Plug Gasket Equalizing Valve Completion Plug Assembly Ears on Flange (distinguishes fitting for “thin wall”) H-17275 Pipe Dimension Size of Line Stopper Fitting 6"x4" 6" 8" Outside Diameter of Shell Cutter Required 6-1/2" 6-1/2" 8-1/2" Outside Diameter of Pipe 4.50" 6.625" 8.625" Maximum Wall Thickness No limit .280" (sch. 40) .322" (sch. 40) Pipe Dimensions Minimum Wall Thickness No limit .125" .125" Maximum Inside Diameter No limit 6.375" 8.375" Drilling/Line Stopping Machine combinations that can be used to install and stop-off H-17275 Fittings Line Stopper Units Drilling Machine Unit No. 3SW Unit No. 3SW-500 H-17275 C1-36 6"x4", 6" & 8" 6"x4", 6" & 8" Replacement Parts Fitting Size 6"x4" 6" 8" Completion Cap 36609 36609 36625 Test Plug 64134 64134 64134 Completion Cap Bolts and Nuts (No. Required) 36446 (8) 36446 (8) 503709 (8) Completion Cap Gasket 62945 62945 63094 Completion Plug Assembly 83703 83703 83709 O-ring Seal 79477 79477 63359 *Nominal **This is the maximum pressure of the fitting installed in the line at 100F for Class Locations 1, 2, 3 and 4 as defined in D.O.T./CFR TITLE 49 PART 192. It may be necessary to reduce the line pressure during the drilling, stopping or plugging operations to the maximum working pressure of the machine or its attachments.
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