Burkert Introduces Type 2822 Proportional Valves Burkert's Type 2822 proportional valves are said to be designed with unique shaped springs, enabling them to set performance standards for higher sensitivity to positional changes. The valves are also claimed to provide improved control, a higher span and reduced noise and wear in gas-handling and medical-engineering applications. The design of the Type 2822 valves is optimised by the inclusion of a flat, disc spring, which provides improved control and guidance of the armature. The valves are intended to provide the same stability, even when they are subjected to pressure loads and vibration. According to the company, they operate almost silently with minimum amounts of friction and delivering a high dynamic response, maximum repeat accuracy and zero stick-slip. The Type 2822 is a precision proportional valve designed for minimal flow rates. The unit combines response sensitivity and a measuring span better than 1:1,000, with lo...
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