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An Industrial Guide On Pneumatic Components

DAS Services Inc.

The principles of pneumatics and hydraulics are the same, the only difference is pneumatics use gas to transmit power instead of a liquid.

Pneumatic Components Lists

Here is a pneumatic components list:

More often than not, a pneumatic system includes air actuator, air compressor, air cylinder, air dry, air source treatment(air filter + air regulator + air lubricator), and air valve. Also, they need air fittings and air hose to connect all the components. Besides, all these components there are several other components too which are needed to reach some function such as check valve, quick exhaust valve, silencer, slide valve, and throttle valve, etc.

Basically, pneumatic system includes 4 basic working cells, air actuator cells, air control cells, air power source cells, and air source pre-treatment cells. Finally, all these fours cells are connected by hoses and fittings.

Here is how…..

1. Air power source cells – air compressor/ air tank/timer drain valve

The job of the air compressor is to transfer electric power to air power. Whereas, air tank stores enough air power to drive air actuator and the job of the timer drain valve is to drain the condensate water from the air tank timely.

However, air power source cells cannot remove water and dust from compressed air that is why in order to make pneumatic components’ life longer, other cells are required.

2. Air source pre-treatment cells – pre-filter/ Air dryer/Oil water separator/Final filter/Drip leg drain/ Filter/Regulator/Lubricator.

In this pre-filter is used to remove most of water molecule and greater Impurity, and it is usually installed in main line. Whereas, air dryer, is used for removing water vapor from compressed air. There are various ways to dry compressed air like: Firstly, you can lower the temperature and then reheat it. Like this condensate will form at the low temperature, water can be discharged there. Upon re-hearting, the air is dry. Most often, this process is used in refrigerated compressed air dryers.

Over compression: In this process the over compressed air is cooled, any condensate formed is removed and then after that, the air is expanded to normal working pressure. However, this is an expensive and seldom used method.

Absorption: This is another way to dry compressed air in this method water in the compressed air is chemically bound to an absorption material gradually the water gets dissolved in the material. Eventually, both the material and the water is then discharged.

Adsorption: Finally adsorption, in this process the water sticks to the surface of the adsorption material (desiccant), the desiccant is regenerated to remove the water again. This process is especially used in desiccant compressed air dryers.

  • Filter/Regulator/Lubricator are used to adopt modular design, can be used separately or together.
  • Air filter are used for removing vapor and dust
  • Air regulators are used for reducing the pressure
  • Air Lubricators are used to add oil into compressor air.
  • Port size: M5~1”
  • Max pressure: 1.5 Mpa
  • Temperature range: 5~60 ℃
  • Filter grade: 5um, 25um, 40um
  • Metal cup protective with transparent container is meant for better visibility & safety
  • Valve with overflow and other fixing accessories

3. Air Control Cells – Pneumatic Directional valve

Pneumatic directional valves are used to regulate, direct or control fluid flow by opening or closing, which includes air valve, solenoid valve, foot valve, mechanical valve, hand valve. Mostly, they are installed directly onto hoses or pipes to control the pressure, along with the rate and amount of fluid as it moves through a system.

Common valve types are –

  • Two-way, two-position valves
  • Three-way, two-position valves
  • Four-way, two-position valves
  • Four-way, three-position

4. Air Actuator – Air Cylinder, Air tools

Finally, Actuator! Actuator and Pneumatic cylinders are accepted widely as they are simple, durable, economical, and easy to install. They are able to produce thousands of pounds of force over a broad range of velocities. Furthermore, they have the ability to cycle at high speeds without overheating and stall without internal damage. Most importantly, they can easily tolerate tough conditions such as dusty environments and high humidity.

Air Cylinder Features Includes:

  • Have single and double acting.
  • An array of bore sizes from 6mm to 600mm available.
  • Max stroke: 2000mm
  • Having multiple mounting configurations and mounting accessories.
  • Cylinder standard: ISO 15552, ISO 6431, ISO 6432, DIN 24335
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