FESTO PU tubes and fittings provide reliable connections for compressed-air and vacuum systems used in industrial automation. Pneumatic tubing carries air between components, while fittings create secure connections between tubes, valves, cylinders, grippers, air-preparation units and other pneumatic equipment. 

Hydro Pneumatics offers FESTO PU tubes and pneumatic fittings, including pneumatic tubing and push-in fittings for industrial pneumatic applications. These products are designed to support organized, reliable and efficient pneumatic connections throughout automated machinery. 

FESTO's pneumatic connection technology includes coordinated tubing and fitting combinations designed for different applications. The product range includes push-in, barbed, threaded and other fitting technologies, allowing the connection system to be selected according to the tubing, installation method and operating conditions. 

PU Tube and Fitting Types 

Different types of pneumatic tubing and fittings are available depending on the machine configuration, connection requirements, tube dimensions and operating environment. 

Pneumatic PU Tubing 

Pneumatic PU tubing is used to transport compressed air between pneumatic components. Polyurethane tubing can provide flexibility for pneumatic installations where tubing needs to be routed around machine components or through moving sections of equipment. FESTO's PU tubing portfolio includes different variants for compressed air, vacuum and other application requirements. 

Hydro Pneumatics currently lists Pneumatic Tubing as part of its PU Tubes and Fittings category. 

PU tubing can be used to connect: 

• Pneumatic cylinders 
• Solenoid valves 
• FRL units 
• Grippers 
• Vacuum generators 
• Pressure regulators
• Pneumatic manifolds 
• Other pneumatic components

Push-In Fittings 

Push-in fittings provide a quick method for connecting pneumatic tubing to valves, cylinders and other components. The tube is inserted directly into the fitting, while the fitting's gripping and sealing mechanism holds the tube securely. FESTO describes push-in fittings as a widely used pneumatic connection technology with quick tube release. 

Hydro Pneumatics currently offers FESTO QS push-in fittings within its PU Tubes and Fittings range. 

How to Choose the Right PU Tube and Fitting 

Selecting the correct pneumatic tube and fitting requires matching the tubing dimensions, fitting connection and operating conditions. 

Tube Outside Diameter 

For push-in fittings, the outside diameter (OD) of the pneumatic tube is an important selection parameter. 

Hydro Pneumatics currently identifies tube OD options including: 

• 3 mm 
• 4 mm 
• 6 mm 
• 8 mm 
• 10 mm 
• 12 mm 
• 14 mm 
• 16 mm 

The fitting should be selected to match the actual outside diameter of the tubing. 

Tube Inside Diameter 

For certain fitting technologies, the tubes inside diameter (ID) are the relevant selection dimension. FESTO's barbed fitting technology, for example, uses tubing inserted over a nipple, with the tubing's internal diameter determining compatibility.

Thread Size 

When connecting tubing to a threaded pneumatic component, select the correct thread size. 

Hydro Pneumatics currently identifies thread options including: 

• M3 
• M5 
• 1/8" 
• 1/4" 
• 3/8" 
• 1/2" 

The thread type and size must match the corresponding port on the pneumatic component. 

Fitting Shape 

Select the fitting shape according to the required tube routing. 

Common options include: 

• Straight 
• Elbow 
• Tee 
• Y 
• Cross 

Choosing the correct shape can help simplify tubing installation and reduce unnecessary bends in the pneumatic circuit.

Operating Pressure 

The tube and fitting should be suitable for the required operating pressure and temperature. Hydro Pneumatics states that FESTO QS fittings have temperature-dependent operating pressure from -0.95 bar to 14 bar, while metal series such as NPQH are specified up to -0.95 bar to 20 bar, depending on temperature and configuration. Always verify the exact specification of the selected product before installation.

Temperature 

Operating temperature can affect the permissible pressure and performance of pneumatic tubing and fittings. The selected tubing and fittings should therefore be compatible with the temperature conditions of the machine. 

Where Are PU Tubes and Fittings Used? 

FESTO PU tubes and fittings are used throughout pneumatic automation systems to connect and route compressed air or vacuum between components. 

Pneumatic Cylinders 

PU tubing and fittings connect pneumatic cylinders to directional control valves and other pneumatic components. Reliable connections are important for maintaining the required air supply and actuator performance. 

Solenoid Valves 

Tubing and fittings connect solenoid valves to pneumatic actuators and air-preparation equipment. Push-in fittings can simplify installation and maintenance in automated machinery. 

Grippers 

Pneumatic grippers require air connections to control their opening and closing movement. PU tubes and suitable fittings provide the pneumatic connection between the gripper, valve and air supply. 

Vacuum Systems 

Vacuum generators and suction systems can also require appropriate tubing and fittings for connecting the vacuum circuit. The tubing and fitting should be suitable for the required vacuum conditions. 

Compressed Air Preparation 

FRL units, filter regulators and regulators require pneumatic connections to the machine's air supply and downstream components. Suitable fittings help create organized connections between the air-preparation equipment and pneumatic circuits. 

Pneumatic Control Panels 

Fittings and tubing can be used to organize pneumatic connections inside machines and control systems, helping create clear and serviceable pneumatic circuits. 

FESTO PU Tubes and Fittings at Hydro Pneumatics 

Hydro Pneumatics supplies FESTO PU tubes and pneumatic fittings for industrial automation and pneumatic connection applications. 

Our current category includes: 

• FESTO Pneumatic Tubing 
• FESTO Push-In Fittings 

Hydro Pneumatics can help you select the appropriate tube and fitting based on: 

• Tube outside diameter 
• Tube inside diameter 
• Thread size 
• Fitting shape 
• Operating pressure 
• Temperature 
• Compressed-air or vacuum application 
• Installation space 
• Connection requirements 

FESTO push-in fittings are available in a wide range of configurations, including straight, elbow, tee, Y and other connection designs. The range also includes different thread configurations and tube sizes. 

For reliable pneumatic installation, the tubing and fitting should be treated as a matched connection system. Selecting compatible components can help reduce leakage, simplify installation and support dependable machine operation. FESTO specifically emphasizes application-specific tubing/fitting combinations within its pneumatic connection technology portfolio. 

Whether you are installing a new pneumatic machine, replacing existing tubing or selecting fittings for cylinders, valves, grippers or vacuum equipment, Hydro Pneumatics can help you identify suitable FESTO PU tubes and fittings. 

Contact Hydro Pneumatics for FESTO PU tubing, QS push-in fittings and pneumatic connection solutions.