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


Release time:

2021-05-27

Pneumatic ball valveSelection of Three Key Cylinder Structure Diagram The Third Key: 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 Cylinder Structure Diagram The Third Key: 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 rollover of the actuator into a contact signal, which is output to the control surface 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 defective 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. It is suggested that the equipment should be used to prevent the cylinder from getting stuck by impurities in the cylinder. Valve positioner: for the equipment required for the share conditioning type pneumatic ball valve, it is mostly used for pneumatic V-type ball valve. 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 supplies a large flow to the actuator, Used to advance the speed of the valve. Press 1:1 (signal and output share). It is primarily used to transmit pneumatic signals to long distances (0-300 meters) to reduce the impact of transmission lag.
Pneumatic ball valve is evolved from the globe valve. It has the same rotation 90 degrees lift action, except that the cock body is a sphere, with a circular through hole or channel through its axis. The share of the spherical surface and the channel opening should be such that when the ball rotates 90 degrees, the spherical surface should be fully presented at the inlet and outlet, thus truncating the activity.
The working principle of pneumatic ball valve is to make the valve dredge or block by rotary valve love. The pneumatic ball valve switch is light, small in size, can be made into a large diameter, reliable in sealing, simple in structure, convenient in repair, the sealing surface and the spherical surface are often in a closed state, and are not easily eroded by the medium. They are widely used in various industries.