This can be either on the plastic and the metal drums of 60 to 220 liter (55 Gallon) with thread G2"BSP. Made of SS, PE-HD (HDPE) and PP (polypropylene). Resistant to most chemicals.
Both in the food like in the chemical industry.
All are equipped with a seal.
Name:2 Inch BSP
D1: 56.66mm (2.23")
P1: 2.31mm (0.09")