Pneumatic ball valves are operated by compressed air and regulate the flow of compressed air, allowing for fast and reliable control of fluid flow in industrial applications. [Easy to install and disconnect] The push connect valve features joint connections at both ends, enabling quick and tool-free installation. Simply push the pipe into the valve body until it clicks into place, with a locking mechanism ensuring a secure connection. This makes it a cost-effective solution for connecting pipelines in industrial settings. Durability: The push valve is constructed from high-quality materials, offering corrosion resistance, structural strength, pressure resistance, and long-term durability. The air control valve is designed to create a reliable leak-proof seal. It features a stainless steel clamp ring and an O-ring seal to ensure a safe and watertight connection, making these valves known for their reliability and leak-free performance. Multifunctional: Union ball valves are commonly used in pneumatic systems to connect lines to actuators, cylinders, and other components. They are widely used in compressed air systems for establishing connections between air compressors, air tools, and pneumatic equipment. They can also be used in hydraulic systems to connect fluid lines to pumps, motors, and other hydraulic components. Size: 4mm Material: Metal Color: Black Package Contents: 3 x Connect Valve Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3cm.