The Sewon Yuken MSW-03-X-40 is a high-performance modular throttle and check valve designed for precise bidirectional flow control in advanced hydraulic systems. Featuring a double-type sandwich-plate design, this valve integrates adjustable throttles and integral check valves in both the A and B port lines. It is equipped with two graduated rotary adjusting knobs, allowing for independent and accurate metering of each work port to efficiently control the speed of hydraulic actuators. Built to the 03 series (NG10 / 10 mm nominal size) standard, it ensures seamless stacking mounting in compliance with the ISO 4401 modular pattern. Manufactured by Sewon E&T Corp. in Korea, this robust valve delivers reliable and consistent performance in demanding industrial applications.