11.90 Shaded area indicates change Rev. 3-08 MUELLER ® EXTENSION (DEAD END) LINE STOPPER FITTING WELDING TYPE - 275 PSIG o Catalog number – H-17251 Completion Cap o Sizes – 4", 6", 8" o Used to extend dead ends o For use on steel pipe only Completion Cap Bolts and Nuts Completion Plug O-ring o O-ring sealed cast iron (ASTM A126 CL.B) Completion Plug with equalizing v alve (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 require - ments of ANSI B16.5 o 275 psig** (1896 kPa) maximum working pressure at 100F (38C) Test Plug Gasket Equalizing Valve Completion Plug Assembly H-17251 Pipe Dimension Size* of Line Stopper Fitting 4" 6" 8" Outside Diameter of Pipe 4.500" 6.625" 8.625" Maximum Wall Thickness No limit .432" (sch. 80) .406" (sch. 60) Pipe Dimensions Minimum Wall Thickness .188" .250" .250" Maximum Inside Diameter 4.124" 6.125" 8.125" Replacement Parts Fitting Size* Completion Cap 4" 36592 6" 36609 8" 36625 Test Plug 64134 64134 64134 Completion Cap Bolts and Nuts (No. Required) 36731 (8) 36446 (8) 503709 (8) Completion Cap Gasket 36377 62945 63094 Completion Plug Assembly 83485 83487 83493 O-ring Seal 43917 79895 79020 *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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