Pneumatic ball valves have two types of structure: O-pattern ball valve and V-pattern ball valve. O-pattern ball valve adopts floating structure. The ball is made of precision casting plated by hard chrome. Seat is made of strengthened PTFE. Diameter of passageway is the same as pipe. Pneumatic ball valves have large flow capacity and low flow resistance, realizing non-leakage when closing. The ball valves can be used as switching valve especially for medium having high viscosity. V-pattern ball valve adopts trunnion structure. Ball has a V-pattern notch which can cut fiber or granulate medium.
According to different processing equipments, ball valve can make up of pneumatic ball valves and electric ball valves with electric or pneumatic actuator. Pneumatic ball valves must be equipped with valve positioner for proportional control.
Based on materials, pneumatic ball valves can be classified into carbon steel ball valve, stainless steel 304 ball valve, stainless steel 316 ball valve and copper ball valve.
Based on pressure, pneumatic ball valves are sorted into high pressure ball valve and low pressure ball valve. High pressure pneumatic ball valve is mainly used in petroleum, gas, hydraulic oil, engineering machinery, etc. Lore pressure pneumatic ball valve is mainly used for water or corrosive medium.
