Usage Tips:1. Size specification: 12 mm tube OD x 1/2 inch NPT thread; model: PCF12N04; type: female straight; 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<br> 2. Material Made of PBT plastic and nickelplated brass, the quick connect fitting connector is durable, corrosionresistant, and pressureresistant, offering sealing performance and tensile strength for longterm use. The pneumatic tube fittings can withstand higher pressure without disengaging, ensuring a secure connection with the air pipe and preventing accidental detachment.<br> 3. Feature One end features a female thread, while the other end is a pushtoconnect tube connector, enabling quick and tool installation or removal of the air pipe. The release cap can rotate 360 degrees after installation for easy pipe direction adjustment. A stainless steel circlip is integrated for enhanced durability and secure fixation of the air pipe.<br> 4. Application Designed for connecting PU, PA, PE, and PVC pipes, these air line fittings are suitable for pressure and temperature applications, including pipeline systems, pneumatic systems, hydraulic systems, automotive manufacturing, and industrial automation.