Various PA Tube Fittings with Aluminum or Brass Housing

Product Introduction

These components typically feature a modular, compact design that combines metal and durable plastic. One end often incorporates threaded metal connectors with hexagonal nuts for secure installation, while the other end(s) use color-coded plastic sleeves to indicate compatible tube sizes. Some models have multiple outlets for branching air lines, and others include additional parts such as rubber gaskets or knurled caps. The overall shape is ergonomic—small enough to fit in tight spaces, with distinct sections that make assembly intuitive. The metallic parts add a sturdy, industrial look, while the plastic components keep the fitting lightweight and corrosion-resistant.

Function

Pneumatic push-in fittings serve as critical connectors in compressed air systems, facilitating quick and tool-free assembly of air tubing and components. When a tube is inserted into the push-in port, internal spring-loaded claws grip the tube securely, creating an airtight seal to prevent leaks. Fittings like the Y/T-shaped models enable air flow distribution, while elbow-shaped fittings allow tubing to change direction without kinking. Some variants also let users regulate air flow by turning a knurled cap, adding versatility. Beyond connection, they maintain system integrity by ensuring consistent pressure transmission, which is essential for the reliable operation of pneumatic equipment in industries like manufacturing, automation, or automotive maintenance.

Advantages

These push-in fittings are substantial for industrial and commercial applications. First, their tool-free installation drastically reduces assembly time—users simply insert the tube, which boosts efficiency in both initial setup and maintenance. Second, they offer excellent sealing performance: the combination of spring claws and gaskets minimizes air leaks, preserving system pressure and reducing energy waste. Third, their modular design supports flexibility: different configurations allow for customized air line layouts, adapting to complex machinery setups. Fourth, the use of corrosion-resistant materials ensures long service life even in harsh environments . Additionally, color-coded ports simplify inventory management and on-site troubleshooting, as technicians can quickly identify compatible tube sizes. 

Tube diameter:

6mm-12mm

Pull-out force:

>500N - >1500N (depends on different tube diameter)

Push-in force: 

80N - 130N (depends on different tube diameter)

Thread type: 

G 1/8'', G 1/4'', M10x1.0, M12x1.5, M14x1.5, M16x1.5, M22x1.5, M26x1.5

Working temperature:

-40℃ — 100℃

Working Pressure: 

0 — 12.5bar

Leakage Performance: 

Leakage less 1bar in 24 hours

Main Product