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13.16 Rev. 8-17 Shaded area indicates changes 581352 MUELLER ® NO-BLO ® VALVE CHANGER FOR 3/4" VALVES ON 1/2" STEEL RISERS ❏ Catalog number – 581352 ❏ For changing out 3/4" meter valves installed on 1/2" steel pipe ID risers ❏ Fits most roundway and straightway valves ❏ O-ring sealed body and stem ❏ Maximum working pressure 60 psig** (414 kPa) ❏ Used with Safety Clamp (682597) (order separately)*** 581352 Dimensions The 581352 plugging can be used on valves (roundway or straightway) that have minimum port dimensions charted to the right, and if the outlet of the valve has F.I.P. threads. Valve Size* 1/2" Minimum Port Width 11/32" Minimum Port Height 23/32" Size* of Plugging Unit Plugging unit part number A length of rubber plug B length from ferrule shoulder to taper Safety Clamp B 1/2" 581352 2" 12-9/16" A Safety Clamp Part Number A 682597 20" B 6-1/2" *Nominal ** This is the maximum working pressure of this equipment. During the use of this equipment, the line pressure must not exceed the amount indicated.

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581352 VALVE CHANGER REPLACEMENT PARTS 13.17 Shaded area indicates change Rev. 8-17 Plugging Unit Complete Stuffing Box Assembly Bottom Tube O-ring Retaining Ring Bleeder Ring Bleeder O-ring (2) Shaft Crank Assembly Shaft Nut Shaft Tube Washer Top Shaft O-ring Shaft Tube Assembly Shaft Assembly Rubber Plug Shaft Ferrule Shaft Ferrule Retaining Nut Part Name 1/2" 581352 083281 79514 53777 50936 40709 83276 51134 51159 53856 581353 083965 503723 503722 52969 Pipe Clamp Asy Hex Nut Locating Pin Stop Clamp Asy Thumb Screw Thumb Screw Set Screw Pivot Sleeve Pivot Coupling Part Name Safety Clamp Complete Pivot Sleeve Set Screw Pivot Coupling Shaft Tube Clamp Arm Assembly (2) Clamp Bar Pipe Clamp Assembly Short Locating Pin (2.875" length) Long Locating Pin (4.375" length) Thumb Screw Hex Nut *Nominal Clamp Bar Pivot Coupling Qty Req'd - 2 2 2 2 1 1 1 1 2 2 Plugging Unit Size* Set Screw Pivot Sleeve Hex Nut Part Number 682597 537866 97763 537865 (Pivot Coupling) 682854 682598 83977 501282 501283 95297 94825

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