Pneumatic ball valves are classified according to operating temperature
(1) Ultra low temperature ball valve: used for valves with medium operating temperature t<- 100 ° C.
(2) Low temperature ball valve: used for valves with operating temperature of - 100 ℃ ≤ t ≤ - 40 ℃.
(3) Normal temperature ball valve: used for valves with medium working temperature of - 40 ℃ ≤ t ≤ 120 ℃.
(4) Medium temperature ball valve: used for medium working temperature of 120 ℃. (5) High temperature valve: used for valves with medium operating temperature t>450 ℃.
