Pneumatic actuators are automatic devices that work directly with air or gas. There are for low pressure (30-250 psi) and high pressure (300-3000 psi), with gas you can work with instrument air, nitrogen, natural gas, sweet gas, pneumatic pump gas, bitter gas, are used for automation of gate, ball, male, butterfly or dampers valves.
There are different actuation mechanisms such as symmetrical or edged Scottish yoke, rack and pinion, vein, and piston type for linear valves.
These actuators depend on the instrumentation and / or accessories to be able to work, such as solenoids, limit switches, filter, regulator, manometers, high and / or low pressure pilots, electrical switches, bypass valves, maintenance valves, eutetic devices. , partial test devices, storage tanks, nitrogen banks, locally operated keypads, remotely operated keypads, controllers, PLCs, communication protocols, fireproof protection, among others.
Operating times are medium to fast at a rate of 1 sec / in. or less. They are also equipped with a steering wheel, manual gearbox or hydraulic pump. Its ideal use is where the pneumatic supply can be guaranteed. They are ideal for emergency stops or duct sectioning.