Double Acting (Stay As Is)
Double-acting actuators are similar to their cousin the single-acting actuators. The major difference between the two are there is “no”spring, the double-acting actuators have two ports which may be used alternatively as either the supply or exhaust ports. Double-acting actuators maybe controlled by two positions or three positions two-way, three-way, four-way or four-way five ported directional control valves. Linear actuator seals should always be capable of withstanding pneumatic industrial applications requirements. Seals must be able to provide the following resilience, strength, low frication, wear resistance, temperature changes and the ability to form a tight seal.