Yesterday we received the rubber vulcanisation machines. Rubber vulcanisation is the process of curing rubber making rubber strong and durable. The rubber lining in a butterfly valve ensures a tight fit between the valve disc and the valve housing.
I started working in 1973 for an English company Cockburns in service and sales. At that time, we repaired a massive pile of valves in the Marine industry. Cockburns was known for a high reputable butterfly valve.