11.20 Shaded area indicates change Rev. 6-10 MUELLER ® LINE STOPPER FITTING WELDING TYPE - 960 PSIG o Catalog number – H-17257 Completion Cap o Sizes – 4" x 3"**, 4", 6", 8", 10", 12" o For use on steel pipe only o O-ring sealed steel (ASTM A216 WCB) Completion Plug with equalizing valve (part # 580912) Completion Cap Bolts and Nuts Completion Plug O-ring o Flange, Completion Cap, fitting top and bottom halves are forged steel (ASTM A105) o Class 400 flange complies with dimensional requirements of ANSI B16.5 o 960 psig***(6618 kPa) maximum working pressure at 100F (38C) Test Plug Gasket Equalizing Valve Completion Plug Assembly H-17257 Pipe Dimension Size* of Line Stopper Fitting 4" x 3"** 4" 6" 8" 10" 12" Outside Diameter of Shell Cutter Required 4-1/4" 4-1/4" 6-1/4" 8-1/4" 12-1/2" 12-1/2" Outside Diameter of Pipe 3.500" 4.500" 6.625" 8.625" 10.750" 12.750" Maximum Wall Thickness No limit No limit .432" (sch. 80) .406" (sch. 60) No limit .375" Pipe Dimensions Minimum Wall Thickness No limit .188" .250" .250" No limit .188" Maximum Inside Diameter No limit 4.124" 6.125" 8.125" No limit 12.374" Drilling/Line Stopping Machine combinations that can be used to install and stop-off H-17257 Fittings Line Stopper Units Drilling Machine Unit No. 2 Unit No. 3 Unit No. 3SW Unit No. 3SW-500 Unit No. 4SW H-17257 C1-36 4" x 3" and 4" 6" and 8" 4" x 3", 4", 6", and 8" 4" x 3", 4", 6", and 8" 10" and 12" Replacement Parts Fitting Size* Completion Cap 4" x 3"** 4" 6" 8" 10" 12" 42039 42039 79898 79016 47648 47648 Test Plug 64134 64134 64134 64134 64134 64134 Completion Cap Bolts and Nuts (No. Required) 46710 (8) 46710 (8) 43908 (12) 501192 (12) 501194 (20) 501194 (20) Completion Cap Gasket 36377 36377 62945 63057 46434 46434 Completion Plug Assembly 83490 83490 83491 83492 83488 83488 O-ring Seal 43917 43917 79895 79020 46428 46428 *Nominal ** The 4" x 3" size fitting is a 4" fitting that has been modified to fit 3" steel pipe. This fitting uses 4" tools and equipment. ***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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