What are coaxial valves?
Coaxial valves are advanced flow control devices engineered with a unique design where the valve seat, control tube, and actuator are aligned along a common axis. This coaxial configuration ensures pressure-balanced operation, allowing the valve to function effectively across a wide range of pressures, from vacuum conditions to high-pressure environments. The design minimises wear, even when handling contaminated media, resulting in maintenance-free performance and extended service life. Additionally, coaxial valves offer rapid actuation times, with some models achieving switching speeds as fast as 25 milliseconds, making them ideal for applications requiring precise and swift flow control.
The compact and versatile nature of coaxial valves makes them suitable for various industries, including mechanical and plant engineering, vacuum and gas technology, test bench construction, and filling and dosing systems. Their ability to handle diverse media—such as gases, liquids, viscous substances, and even abrasive materials—without compromising performance underscores their adaptability. Furthermore, the bi-directional flow capability of coaxial valves eliminates the need for multiple valves in systems where flow direction may alternate, thereby simplifying system design and reducing installation space requirements.
What are their advantages?
Pressure Balanced Design:
The coaxial design ensures balanced internal forces within the valve, maintaining consistent performance regardless of system pressure or differential pressure. This design provides precise, reliable control, whether managing vacuum or high-pressure applications. Unlike traditional valves, coaxial valves operate effectively without needing a minimum pressure differential, making them suitable for a wider range of fluid control tasks across varying conditions.
Maintenance Free & Dirt Resistant:
The innovative coaxial valve design reduces valve seat wear, even in heavily contaminated media. Featuring a unique construction with a single moving part, and no stem seal or external actuator, coaxial valves are entirely maintenance-free. Built to withstand extreme conditions, these valves offer durability and achieve lifespans up to 10 times longer than conventional options, making them a reliable choice for demanding applications.