Question: What will happen if the pressure on the OUT side of a VX series 2 port N.C. type valve becomes higher than the pressure on the IN side?
Answer:
Even when the product is not energized, the valve will open, resulting in reverse flow. The numbers “1” and “2” are indicated on the piping ports of the 2 port valve. “1” means the IN side (high pressure side).
Last update: 5/12/2020