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In the choice of pneumatic ball valve should pay attention to the following matters


Release time:

2021-05-26

Pneumatic ball valveSelection of three key points to pay attention to cylinder structure diagram. The third key point: selection of pneumatic accessories. Solenoid valve: double-acting cylinder with one matching two-position five-way solenoid valve or three-position five-way solenoid valve. The single-acting cylinder can be equipped with a two-position three-way solenoid valve. Voltage can choose DC24V,AC220V, etc. Explosion-proof requirements shall be considered.

In the choice of pneumatic ball valve should pay attention to the following matters

Pneumatic ball valveSelection of three key points to pay attention to cylinder structure diagram. The third key point: selection of pneumatic accessories. Solenoid valve: double-acting cylinder with one matching two-position five-way solenoid valve or three-position five-way solenoid valve. The single-acting cylinder can be equipped with a two-position three-way solenoid valve. Voltage can choose DC24V,AC220V, etc. Explosion-proof requirements shall be considered.
Travel switch: The function is to convert the roll of the actuator into a contact signal, which is output to the control instrument to feed back the opening and closing status of the field ball valve. Commonly used mechanical, magnetic induction type. Explosion-proof requirements should also be considered. Handwheel mechanism: the equipment is between the ball valve and the cylinder, and can be changed to manual switch when the air source is faulty, so as to ensure the safety of the system and not delay production.
Air source processing components: there are two and three parts, the function is filtering, decompression, oil mist. Advocate equipment to prevent the cylinder from getting stuck with impurities. Valve Locator: For the demand equipment for share conditioning pneumatic ball valves, it is mostly used for pneumatic V-ball valves. Input 4-20mA, to consider whether with feedback output signal. Whether explosion-proof is required. There are ordinary type, intelligent type.
Quick exhaust valve: accelerate the speed of pneumatic ball valve switch. The device is between the cylinder and the solenoid valve, so that the gas in the cylinder does not pass through the solenoid valve and is discharged quickly. Pneumatic amplifier: The device receives the pressure signal from the outlet of the positioner in the gas path leading to the cylinder, and provides a large flow to the actuator, Used to advance the speed of the valve. Press 1:1 (signal and output share). It is mainly used to transmit pneumatic signals to long distances (0-300 meters) to reduce the impact of transmission lag.
Pneumatic ball valve is mainly used in the rapid cut-off, distribution and change of media activities in the pipeline. Pneumatic ball valve ball in the daily production and operation has an important application, is a kind of cock valve transformation from the valve, its center for the rotation of 90 ° action, the ball around the valve body center line for rotation to reach the open, a circular through hole or channel through its axis. When the ball center rotates to 90 °, the valve is locked. When the actuator works, only a small rolling torque can close the valve tightly, so that the principle of rapid cut-off can be reached.