Push To Connect Threaded Fittings

Threaded Push-To-Connect Fittings for Pneumatic Tubing

Pneuforce threaded push-to-connect fittings are designed to connect pneumatic tubing directly to threaded ports on valves, cylinders, manifolds, FRL units, vacuum generators and other compressed air components. These fittings combine a threaded male connection on one side with a push-in tube connection on the other, allowing fast, secure and repeatable installation of pneumatic tubing.

Also known as threaded push-in fittings, one-touch tube fittings or pneumatic tube connectors, these fittings are widely used in industrial automation, packaging machinery, control panels, air preparation systems, machine tools and OEM pneumatic equipment.

Threaded Push-To-Connect Fitting Features

• Threaded connection for pneumatic components and manifolds
• Push-in tube connection for fast tubing installation
• Suitable for polyurethane and nylon pneumatic tubing
• Metric and inch tube sizes available
• NPT, BSPP, BSPT and universal thread options
• Fluid medium: compressed air
• Working pressure: 0-150 PSI / 10 bar
• Proof pressure: 450 PSI / 30 bar
• Vacuum duty: 29.5" Hg / 14 mbar(a)
• Standard working temperature: 32-140ºF / 0-60ºC
• All metal fittings: -40-248ºF / -40-120ºC
• High temperature models available upon request

What Is a Threaded Push-To-Connect Fitting?

A threaded push-to-connect fitting is a pneumatic fitting used to connect flexible air tubing to a threaded component port. The threaded side screws into the component, while the push-in side accepts the pneumatic tube. Once inserted, the tube is held in place by the internal gripping mechanism and sealed to help prevent air leakage.

This fitting style is one of the most common connection methods in pneumatic systems because it makes machine assembly faster and allows tubing to be removed or replaced during maintenance without replacing the fitting.

Available Thread Types

Pneuforce threaded push-to-connect fittings are available with common thread standards used across North American, European and international pneumatic equipment.

• NPT Threads: National Pipe Taper threads commonly used in North American compressed air systems.
• BSPP / G Threads: British Standard Pipe Parallel threads commonly used on European pneumatic components.
• BSPT / R Threads: British Standard Pipe Taper threads used in many international pneumatic systems.
• Universal Threads: Designed to connect with female NPT, NPSF, BSPT, R thread, BSPP and G thread ports depending on the application.

NPT, BSPP and BSPT Pneumatic Fittings

Selecting the correct thread type is important for reliable pneumatic sealing. NPT and BSPT threads are tapered thread forms, while BSPP threads are parallel. Tapered threads typically seal through thread engagement and sealant, while parallel threads generally require a sealing washer, O-ring or bonded seal depending on the fitting design.

Using the wrong thread type can cause leakage, poor thread engagement or damage to the pneumatic component. Always confirm the port thread before selecting a threaded push-to-connect fitting.

Metric and Inch Tube Sizes

Pneuforce threaded push-to-connect fittings are available for both metric and inch pneumatic tubing. Metric sizes are common on imported equipment and international machine designs, while inch sizes are frequently used in North American pneumatic systems.

The tube outside diameter must match the push-in fitting size. Incorrect tube size, damaged tubing or angled tube cuts can cause leaks or poor tube retention.

Common Applications

• Control Valves: Secure tubing connections for solenoid valves, manual valves, valve manifolds and directional control valves.
• Pneumatic Cylinders: Reliable air connections for single acting and double acting cylinder ports.
• Vacuum Venturi: Leak-resistant tubing connections for vacuum generation and vacuum release circuits.
• Pneumatic Tools: Durable compressed air connections for air drills, grinders, impact tools and workstations.
• Air Preparation Units: Connections for filters, regulators, lubricators and FRL assemblies.
• Automation Equipment: Used on packaging machines, assembly equipment, robotics, manifolds and control panels.

Choosing the Correct Threaded Push-To-Connect Fitting

To choose the correct threaded push-to-connect fitting, confirm the tube outside diameter, thread type, thread size, fitting shape, pressure rating, temperature range and available installation space. Common fitting styles include straight male connectors, elbows, branch tees, reducers, bulkhead connectors, manifolds and swivel fittings.

For best performance, cut tubing square, push the tube fully into the fitting and confirm that the fitting thread matches the component port. Correct fitting selection improves pneumatic system reliability, reduces leakage and simplifies future maintenance.