MUELLER ® NO-BLO ® 3"-12" LINE STOPPER FITTINGS - MAXIMUM STOPPING PRESSURES 11.9 Shaded area indicates change Rev. 10-21 Fitting H-17375 H-17376 H-17505 H-17506 H-17507 H-17508 Size 6" 8" 6" 8" 3" 4" 6" 8" 3" 4" 6" 8" 4 4" 6" Stopper Selection Stopper Type SW SW SW SW ER ER ER ER ER ER ER ER ER ER ER Stopper Cat. No. 89700 89702 89700 89702 83504 83506 682337 682339 83504 83506 682337 682339 83506 83506 68237 Maximum Pressure (at 100F/38C) based on the lowest operating pressure rating of either the Stopper or stop-off machine used Unit No. 2 Unit No. 3 No. 3SW No. 3SW-500 No. 4SW - - 275 275 - - - 275 275 - - - 275 500 - - - 275 500 - 100 - 250 250 - 100 - 250 250 - - 100 250 250 - - 100 200 200 - 100 - - - - 100 - 250 250 - - 100 250 250 - - 100 200 200 - 100 - 250 250 - 100 - 250 250 - - 100 250 250 - **With 83318 gate valve S=Solid rubber Stopper. BC=Solid rubber Bypass through top or bottom. BS=Bottom Stopper. SW=Steel Wedge Stopper with polyurethane cover Bypass through top or bottom. ER=Expanding rubber Stopper for flanged tees. All operating pressure are for current style stoppers.
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