The YSIQ(D)10S series micro-flow control valve uses a compact modular design with compression-connected trim for easy installation and maintenance. A specially designed plug and precision machining ensure regulating accuracy. The top-guided plug provides good guidance and smooth, reliable movement, and welded or threaded connections are available. A valve positioner can be fitted for precise automatic control. The series is particularly suitable for laboratory and pilot installations in chemical and nuclear-power applications as well as catalyst-dosing systems, meeting the need for small-size valves in experimental equipment.