47/48-21000 series pneumatic single seat regulating valveDetailed product description：

The 47/48-21000 series pneumatic single seat regulating valve is a product introduced from Masoneilan Company in the United States. Its valve has a simple internal flow path and is widely used in various industrial process control systems such as power plants, chemicals, refineries, and metallurgy.

The 47/48-21000 series pneumatic single seat regulating valve consists of a ∑ F actuator and a 21000 series single seat valve. The ∑ F actuator is a combination of a conventional spring film actuator and a force amplification system, which utilizes the principle of lever amplification. Amplify the output force of the actuator by 2.6-5.2 times, the 21000 series single seat valve adopts a top guide structure to ensure stable operation of the valve core. This series of regulating valves has good universality and can be applied to the control process of various fluids.

Key Features:
1. It has various valve cores, including quick replacement valve cores, low capacity valve cores, soft sealed valve cores, low-noise and anti cavitation valve cores, with a wide range of applications.
2. Adopting a top guiding structure, with a large guiding area and good stability.
3. The leakage is small.
4. Equipped with a ∑ F actuator, capable of withstanding high pressure differentials.
5. The sealing surface of the valve core and seat can be welded with tungsten chromium cobalt hard alloy to improve the service life of the regulating valve.