If you have actuated valves (SDV, BDV, CV, On-Off), you would find small valves accessories sometime called 2-way, 3-way, 5-way valves with electric driven called solenoid or pneumatic pilot driven. The valve accessories will determine how the actuated valves cycles are working. N-way valves is not the actuated valves (SDV, BDV, CV) it self, but this [...]
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