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2015 Maxitrol Company. All Rights Reserved. DRAFT 09.18.2013 12 A D Model Pipe Size Vent Connection Swing Radius Dimensions A B C D RV52 12 34 18 NPT 3.6 91 mm 4.9 124 mm 3.2 81 mm 3.3 83 mm 1.3 32 mm RV53 34 1 18 NPT 3.9 99 mm 5.2 132 mm 3.8 95 mm 3.9 99 mm 1.3 33 mm RV61 1 1 14 18 NPT 4.8 122 mm 6.4 164 mm 4.4 111 mm 5.4 138 mm 1.6 41 mm RV81 1 14 1 12 38 NPT 6.4 162 mm 8.4 213 mm 6 153 mm 7 178 mm 2 51 mm RV91 2 12 NPT 8.5 216 mm 10.8 275 mm 6.5 165 mm 9.1 232 mm 2.3 60 mm 2 12 14 NPT 8.3 212 mm 10.5 267 mm 7.1 181 mm 9.1 232 mm 2.4 62 mm RV111 2 12 3 34 NPT 11.5 284 mm 15.1 373 mm 9 229 mm 13.4 324 mm 3.5 89 mm RV131 4 34 NPT 18.2 462 mm 23.3 592 mm 13.9 353 mm 18 457 mm 5.1 130 mm A D A D A D RV81 RV91 RV61RV52 RV53 RV111 RV131 A D NOTE Dimensions are maximums and to be used only as an aid in designing clearance for the valve. Actual production dimensions may vary somewhat from those shown. Dimensions RV SERIES Straight-Thru-Flow Design