Sanitary Fittings Dimensions

A lot of common errors can be made trying to determine the appropriate size for sanitary fittings. Use this complete guide to choose the right part for your needs

Sanitary Fitting Dimensions

The flange size, which is the same as the outside diameter, does not equal the sanitary fittings size.  In order to determine the correct sanitary fitting size required please note the Inside/Outside diameters per the sketch above and refer to the guide below.

Clamp Fittings and Gasket Sizing Guide

Sanitary Size Outside Diameter (OD) of Clamp End Inside Diameter (ID) of Fitting
1/2″ 0.992 0.370
3/4″ 0.992 0.620
1″ 1.984 0.870
1 1/2″ 1.984 1.370
2″ 2.516 1.870
2 1/2″ 3.047 2.370
3″ 3.579 2.870
4″ 4.682 3.834
6″ 6.562 5.782
8″ 8.602 7.782
10″ 10.570 9.782
12″ 12.570 11.760