Pneumatic ball valve and difference characteristics of pneumatic butterfly valve

the characteristics of the pneumatic ball valve:
block and secretion: when pneumatic valve in the closed situation, upstream and downstream side of the pneumatic valve seat make liquid blocking, pneumatic valve body lumen of stagnant objects can be secreted by production equipment.
automatic pressure relief structure: a temporary cavity pressure when adding phenomenon appears disorder, lumen medium can rely on itself thrust to promote pneumatic seat and automatic pressure release, and ensure the safety of the pneumatic valve lift.
reliable pneumatic valve stem seal: pneumatic valve stem seal backwards bottoms used structure, pour sealing force with medium pressure increases with increasing of the seal, so it can guarantee the reliable pneumatic valve stem seal, and, when the pneumatic booster valve stem disorders, pneumatic valve rod will not spit out.
fire prevention structure: according to the working condition and the needs of users, pneumatic ball valve can plan for fire protection structure.
anti-static structure: when operating pneumatic valve, because the friction between the ball and pneumatic seat, will attack cattle and accumulation of electrostatic charge on the sphere, to prevent attacks spark, in the pneumatic valve set on static equipment, will accumulate in the sphere of charge is derived.
the characteristics of pneumatic butterfly valve:
is made up of pneumatic actuators and pneumatic valve adjustment. Pneumatic butterfly valve is used with the rolling round the pneumatic valve orange butterfly plate to do, to be opened to enable the end action of pneumatic pneumatic valve is mainly to do to cut off the pneumatic valve is applied, according to the characters of pneumatic butterfly valve structure can be designed with scheduling or period of pneumatic valve and the function of the scheduling, now butterfly pneumatic valve in the low voltage applied to the large and medium diameter pipe and keep adding.
pneumatic valve butterfly butterfly plate device in the diameter of the pipe direction. In the cylindrical channels of pneumatic valve pneumatic butterfly valve body and disc butterfly plate around the axis of rotation, rotation Angle for ° - Between °, rotate to °, the pneumatic valve is in full open. Pneumatic valve butterfly brief structure, small volume, light weight, only by a few parts. And simply rotate ° rapid opening and closing, brief operation, together with the pneumatic valve has good flow control characteristics. Butterfly pneumatic valve in a completely open position, the butterfly plate thickness is only the resistance of the medium flows through the pneumatic valve, therefore the attack by the pneumatic valve through the pressure drop is small, it has good flow control characteristics. Butterfly pneumatic valve seal and metal sealing machine has two sealing type. Elastic sealing pneumatic valve, sealing ring to be set on the pneumatic valve body or attached to the butterfly plate peripheral.