China Hot Water Steam Double Acting Pneumatic Actuator 2 PC Wcb Ball Valve

The difference between single acting and double acting 1. Switch action The opening and closing actions of the double-acting cylinders are all driven and executed by the air source; ventilation is open, the air is closed, and the air is cut off to keep in place; the single-acting switching action is only the opening action is driven by the air source, and the closing action is spring reset. 2. Type Single action points: normally open and normally closed. Normally open type is divided into: ventilation closed, cut off the air open; normally closed type: ventilation open, cut off the air. 3. Function Single-acting has a single function than double-acting. For example, double-acting can be connected to a three-position five-way middle seal, and medium voltage can achieve safety functions, but single-acting cannot achieve this function.