Sanitary Sizing

Tri-Clamp sanitary fitting size is based on the tube outside diameter (OD).   The flange diameter for each clamp size is as shown on the chart to the left for reference.  Please note that the 1/2" and 3/4" sizes use the same clamp but different gasket sizes.  This also holds true for 1" and 1-1/2" sizes.  Feel free to contact us with any sizing questions prior to ordering.

Sant.

Size

OD of

Tube

OD of

Flange

1/2"

0.500

0.984

3/4"

0.750

0.984

1"

1.000

1.984

11/2"

1.500

1.984

2"

2.000

2.516

21/2"

2.500

3.047

3"

3.000

3.579

4"

4.000

4.682

6"

6.000

6.570

8"

8.000

8.570

10"

10.000

10.507

12"

12.000

12.507

Size-flg.png
Size-tube.png

Tube OD

Flange OD