Aluminum Pneumatic Actuator For Sanitary Stainless Steel Valves

Aluminum Pneumatic Actuator For Sanitary Stainless Steel Valves

• Pneumatic actuator are prime movers, mainly used to operate ball and butterfly valves, they work on the principle of a rack and pinion design.
• Pneumatic actuators are offered in two versions. single acting spring return and double acting pilot solenoid valves are commonly used to control the air into the ports on an air actuator. 
• Air in to open the valve and air off in which this brings force to close the valve double acting pneumatic actuators operate similarly to spring return units only without the springs air is supplied to both ports of the actuator allowing air to both sides of the pistons air is forced into the left port which causes the pistons to move apart opening the valve and then air is forced into the right port pushing the pistons together to close the valve demonstrated here.
• This double acting actuator which has two operating libes one to open and one to close shown on this ball valve air in one side to open and in the other to close air is exhausted after every stroke and applied again to this butterfly valve.

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