The principal number in the 4/2 air valve, the four, alludes to the quantity of working air ports that are found in the valve body. That is, the quantity of ports that flexibly air to the valve, and channel the compressed air from the valve to the application. That deals with three of the four ports. The fourth port is for exhaust.
The 4/2 valves will have numbers or letters carved, cast or painted close to every one of their four working air ports. On the off chance that there are numbers close to the ports, the number 1 would be the flexibly port to carry the compressed air to that valve.
Port numbers 2 and 4 would be the working ports from which air would stream to achieve whatever task that you needed that valve to do.
The other port, normally contiguous the flexibly port, is the regular fumes port.
A 4/2 air valve is utilized to control a twofold acting air driven gadget binh chua khi nen. By twofold acting, I imply that the gadget is controlled by compressed air sent to one of two ports on the gadget and the gadget responds by then again moving one way or the other, contingent upon which air line to it is accused of compressed air.
A run of the mill case of a twofold acting air gadget is the air cylinder. On the off chance that air is infused into the port toward one side, the cylinder that is inside the cylinder is pushed to the opposite finish of the cylinder barrel, and the pole that is appended to the cylinder moves alongside it.
At the point when it is an ideal opportunity to move the cylinder and bar the other way, air is provided to the next port on the cylinder, the cylinder moves back alongside the cylinder pole, and air leaves the other port.
A 4/2 air valve is the valve of decision for a twofold acting air cylinder.
At the point when compressed air is brought to the flexibly port of the 4/2 valve the compressed air will course through and out of one of the two actuator ports. The other actuator port will be open, through the valve, to environment.
At the point when the 4/2 valve is moved, compressed air will move through it and out the subsequent actuator port, and the port that was previously providing air to the cylinder, is currently opened to debilitate.
A 4/2 compressed air valve will have just one fumes port. Each time the valve shifts, one of the two actuator ports on the opposite side of the valve are associated inside to this fumes port.
As the valve moves to and fro, compressed air is provided on the other hand to either of the two actuator ports. Since every one of the valve’s actuator ports is associated with an air line to one of the ports in the air cylinder, as the compressed air streams then again to every actuator port, it also courses through that specific air line to the cylinder, which move the cylinder one way or the other inside the cylinder barrel.
Air goes in one finish of the cylinder, and the air that was in the opposite end, escapes down it is line, through the valve to deplete, permitting the actuator cylinder to move. On the off chance that the air could not get away, the cylinder would not move.