2006-10-09 20:34:31 · 1 answers · asked by Ritchie K 1 in Science & Mathematics ➔ Engineering
Right a 5/2 valve means there are 5 ports and 2 position. The ports are usually numbered 1 - 5 but could be letter P R etc. 1 is the supply port where you connect up the air supply, 2 and 4 are the outlet ports which the valve directs the air to, 3 and 5 are the exhausts which allow the air from 2 and 4 to exhaust when the valve is sending air to the other of 2 and 4. There is also a smaller air port to the side (or at both sides) to connect the air pilot. There are two if the valve is double pilot and 1 if the valve is pilot/spring.
How it works:
When there is no pilot being supplied the air from port 1 is directed by the valve to port 4. If this is connected to a cylinder, the cylinder will stay retracted. When a pilot pressure is supplied the valve switches over so that the air from port 1 goes to port 2 and the cylinder shoots forward, the air from port 4 is exhausted out port 5. The valve will stay in this position when the pilot signal is removed if the valve is double pilot otherwise the spring will change the position back to the original one
2006-10-09 22:38:56 · answer #1 · answered by survival_paul 4 · 1⤊ 0⤋