Quote:
Originally Posted by jfitz0807
We used a double solenoid for shifting because we wanted to use pneumatic pressure for both shifting directions rather than relying on a spring inside the cylinder. Specifically we used very small pancake shifters. To use a dual port cylinder like this, the double solenoid is the way to go.
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You're confusing the acting of a valve (Sprung or unsprung) with the porting of a valve. A 5/2 valve will supply pressure in both actuation directions, while a 3/2 will only supply it in one.
The 5 or 3 refers to the number of input or exhaust ports a valve has, while the digit after the / refers to the number of positions it has.