Sanitary ferrules fittings made by stainless steel 304, 316L, ISO DIN SMS 3A standard from size 1/2″ to 10″
sanitary ferrules are precision-machined in CNC, sanitary ferrule fittings are conform to ISO, DIN, SMS and 3A standard
3A tri-clamp ferrule specification
SMS standard ferrule dimension as below
| Size | D1 | D2 | D3 | D4 | H mm | ||
| inch | mm | mm | mm | mm | mm | 21.5 | 14AMP |
| 1" | 25.4 | 22.1 | 43.5 | 50.5 | 12.7 | 21.5 | 28.6 |
| 1.5" | 38.1 | 34.8 | 43.5 | 50.5 | 12.7 | 21.5 | 28.6 |
| 2" | 50.8 | 47.5 | 56.5 | 64 | 12.7 | 21.5 | 28.6 |
| 2.5" | 63.5 | 60.2 | 70.5 | 77.5 | 12.7 | 21.5 | 28.6 |
| 3" | 76.3 | 72.9 | 83.5 | 91 | 12.7 | 21.5 | 28.6 |
| 4" | 101.6 | 97.6 | 110 | 119 | 15.9 | 21.5 | 28.6 |
| ... | |||||||
the SMS standard ferrule 1"~4"can be stainless steel 304 material and SS316L material under reequest.