The UM41 manual regulating valve is an industrial control valve that relies on the manual rotation of a handwheel to adjust the clearance between the plug and seat, thereby achieving precise regulation of flow and pressure in a pipeline. Typically utilizing a straight-through or angle structure, the valve features a hydrodynamically designed regulating plug. As the handwheel turns, the stem moves linearly to continuously vary the flow area. Operating without external energy (electricity or air), the UM41 is ideal for local manual control of flow proportioning and system pressure balancing where frequent automated adjustment is not required. This series is widely used in water supply, steam, and oil pipelines across petroleum, chemical, power, and metallurgical industries.

Product Image: UM41 Manual Regulating Valve

Product Features

1.Precise proportional regulation:The plug profile is precision-machined to provide linear or equal-percentage characteristics. It offers excellent resolution, allowing operators to fine-tune fluid parameters via the handwheel turns or position indicators.
2.Superior mechanical self-locking:The precision trapezoidal thread mechanism provides inherent self-locking. Once adjusted, the valve maintains its position against fluid pressure fluctuations, ensuring consistent flow stability.
3.Robust and durable design:Bodies are manufactured from high-quality cast steel or stainless steel with wall thicknesses meeting high-pressure standards. Hardened internals provide exceptional resistance to erosion and wear for long-term service.
4.Tight shut-off performance:Precision-ground sealing pairs ensure extremely low leakage in the fully closed position. It functions as both a regulating valve and a reliable isolation valve in emergencies.
5.Intuitive position indication:Equipped with a clear stroke indicator or scaled sleeve. This allows operators to monitor the plug's relative position in real-time for logging and repeating process settings.
6.Low-torque operation:For large-diameter or high-pressure-drop conditions, optional gear reduction mechanisms (worm gear) are available to significantly reduce operating torque, ensuring smooth adjustment.
7.Environmental resistance:Free of electronic components and sensitive diaphragms, the valve excels in extreme high/low temperatures or high-radiation environments, offering high intrinsic reliability.
8.Ease of maintenance:The simple design features few wearing parts. The top-entry structure allows for packing replacement and internal cleaning without removing the valve from the line, reducing O&M costs.