Pneumatic O-type shut-off ball valve
Product Parameters
Pneumatic O-type shut-off ball valve. It has the advantages of simple structure, small volume, light weight and convenient operation, and can be widely applied to automatic regulation and remote control in industrial production processes such as petroleum, chemical industry, hydropower and light textile.
Structural Principle of Pneumatic O-type Shut-off Ball Valve:
The O-type ball valve is composed of components including a valve body, a ball, a valve shaft, a sealing ring, packing, and a pressure plate.
The actuator is composed of main components such as gas, piston, gear type, output shaft, cylinder cover, bearing, guide ring, piston bearing bush, adjusting bolt, and "O" ring.
Working Principle of Pneumatic O-type Shut-off Ball Valve
The actuator is connected to the valve via a connecting shaft. After air pressure is input into the cylinder, it acts on the piston to generate a certain thrust. Under the push of the piston, the gear-type output shaft rotates, driving the valve shaft to rotate, so that the ball of the ball valve rotates in the valve, changing the flow area of the valve and achieving the purpose of changing the flow rate of the medium passing through the valve.
Technical Parameters of Pneumatic O-type Shut-off Ball Valve
Nominal diameter DN15-DN300
Rated flow coefficient Kv 20-8500
Action mode: double-acting; single-acting; air-to-open (K); air-to-close (B)
Nominal pressure PN (MPa) 1.6-6.4
Rotation angle range 0～90°
Inherent flow characteristic: quick opening
Working temperature t (℃) -20～160
Air source pressure Ps (MPa) 0.3～0.6
Flange size and type: PN10, 16, 40GB9113-88; PN64JB/T79-94; PN10, 16 convex type; PN40, 64 concave type, or other standard flanges can be selected according to user requirements (such as ANSI, JIS, DIN standards)
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