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2015 Maxitrol Company. All Rights Reserved. DRAFT 09.18.2013 20 Model Pipe Size Vent Connection Swing Radius Dimensions A B C D R400S 38 12 18 NPT 2.4 60 mm 3.3 83 mm 2 51 mm 2 51 mm 0.9 24 mm R500S 12 34 18 NPT 3.6 90 mm 4.7 119 mm 3.1 79 mm 3 76 mm 1.2 30 mm R600S 34 1 18 NPT 4.3 110 mm 5.7 145 mm 3.9 99 mm 4 103 mm 1.5 38 mm 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. A D R500S R600S R400S RRS SERIES Balanced Valve Design Dimensions