Gasket dimensions to suit AWWA C207 class E (275)

Nominal bore Gasket outer diameter Gasket inner diameter Number of bolt holes Diameter of bolt holes Bolt P.C.D.
Imperial Metric Imperial Metric Imperial Metric Imperial Metric Imperial Metric
32 800 41 3/4 1060 32 3/16 818 28 1 5/8 41.3 38 1/2 978
34 850 43 3/4 1111 34 3/16 868 32 1 5/8 41.3 40 1/2 1029
36 900 46 1168 36 3/16 919 32 1 5/8 41.3 42 3/4 1086
40 1000 50 3/4 1289 40 3/16 1021 36 1 5/8 41.3 47 1/4 1200
42 1050 53 1346 42 3/16 1072 36 1 5/8 41.3 49 1/2 1257
44 1100 55 1/4 1403 44 3/16 1122 40 1 5/8 41.3 51 3/4 1314
48 1200 59 1/2 1511 48 3/16 1224 44 1 5/8 41.3 56 1422
52 1300 64 1626 52 3/16 1326 44 1 7/8 47.6 60 1/2 1537
56 1400 – – – – – – – – –