HARFINGTON PCF8-N02 5-Pack Pneumatic Fittings, 8 mm Tube x 1/4" NPT
Product description
The 8 mm tube OD x 1/4" NPT size makes these HARFINGTON fittings a practical match for pneumatic layouts that use this tubing and thread combination. This five-piece set uses a female straight design, with a push-to-connect end for the tube.
The push-to-connect connection lets you insert or remove the air line without tools. A 360-degree rotating release cap helps you change the tube’s direction after installation, which is useful when routing a line through a confined setup.
Choose this style when quick tube changes and routing adjustments are priorities. For a layout where the connection is intended to stay in place, the same size and female NPT thread provide a straightforward way to join compatible tubing to a threaded port.
Technical details
- Type: Female straight push-to-connect pneumatic fitting
- Size: 8 mm tube OD x 1/4" NPT thread
- Quantity: 5 fittings
- Material: PBT plastic and nickel-plated brass
- Operating pressure: 0–1 MPa / 0–145 psi
- Proof pressure: 1.6 MPa / 232 psi
- Working temperature: -40°C–60°C / -40°F–140°F
The NPT measurement is a nominal pipe size, not the thread’s actual diameter. When setting up a line, match the fitting to the tube’s outside diameter and the port’s NPT thread, and keep the gas or liquid source within the fitting’s stated pressure range.
Everyday compatibility
These fittings are designed for PU, PA, PE and PVC tubing with an 8 mm outside diameter. One end has a female NPT thread, the other accepts the tube by push-to-connect. This makes them suited to compatible pneumatic systems, pipeline installations, industrial automation and automotive manufacturing applications.
For a practical setup, thread the fitting into a matching port, then push the tube into the connector. The tube can be removed without tools, and the release cap can be rotated after installation to direct the line where it needs to go. An internal stainless steel circlip helps hold the tube in place once connected.
Who it’s for
This set is useful for anyone assembling or maintaining a compatible air line who wants several fittings in the same size for a small project or multiple connection points. It also suits setups where the tube may need to be repositioned: the push-to-connect design makes insertion and removal simple, while the swivelling release cap helps with line direction.
It makes sense if your setup calls for an 8 mm tube OD and a 1/4" NPT female connection. The five-piece quantity keeps matching fittings available for more than one point in a compatible system, without mixing sizes or connection styles.
Practical questions
What tube size does the fitting accept? It is designed for tubing with an 8 mm outside diameter. Compatible tube materials listed for this fitting are PU, PA, PE and PVC.
How does the tube connect? Push the tube into the push-to-connect end. It can be removed without tools, and the release cap rotates 360 degrees after installation to help adjust the tube’s direction.
What pressure and temperature ranges are listed? The operating pressure is 0–1 MPa / 0–145 psi, with a proof pressure of 1.6 MPa / 232 psi. The working temperature range is -40°C–60°C / -40°F–140°F, keep the source within the stated operating pressure range.
Buying verdict
For compatible pneumatic installations, the HARFINGTON PCF8-N02 brings the key connection details together: an 8 mm push-to-connect tube end, a 1/4" NPT female thread and a five-piece set. Its tool-free tube connection and rotating release cap make it a useful choice for building or adjusting air-line routes with these matching sizes.