Pneumatic function fittings are connectors that add additional control and safety to Pneumatic systems. These connectors do a lot more than just connect, tubes, hoses to a valve, cylinder, or air-powered system. These function fittings come in a variety of sizes and materials

 Types of fittings 

• Flow control Regulators- Control the speed of the flow
• Sensor Fittings - Detect  any Pressure drop
• Venting Protection - Block the supply of and vent the system pressure
• Non Return Valves - Let air pass in one direction blocking it from flowing in the opposite direction
• Speed Controllers - control the flow of compressed air to pneumatic actuators