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Brief introduction and role of Dongguan gas pressure regulating valve
The gas pressure regulating Valve is a lever-type differential pressure feedback control device used to regulate gas pressure. The gas stored in the cylinder is in liquid form, and due to high pressure, it must be reduced to a suitable level for safe and efficient use in stoves or other gas appliances.
**Brief Introduction and Role of Dongguan Gas Pressure Regulating Valve**
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**1) What is a Gas Pressure Regulating Valve?**
A gas pressure regulating valve is a type of lever-based differential pressure feedback control system. Since the gas inside the cylinder is in liquid form, the pressure is extremely high and needs to be reduced before it can be safely used in household or industrial applications such as cooking stoves. This process ensures that the gas is delivered at a stable and controlled pressure, enhancing both safety and performance.
**2) Function of the Filter Pressure Regulating Valve**
The filter pressure regulating valve operates based on the principle of force balance. When the signal pressure applied to the bellows increases, it causes the lever to rotate around its fulcrum, which moves the baffle closer to the nozzle. This action increases the backpressure in the nozzle, which is then amplified by the amplifier and sent to the actuator’s air chamber. As a result, the valve stem moves downward, driving the feedback rod (or pendulum rod) to rotate around the fulcrum.
This rotation causes the feedback cam (eccentric cam), connected to the same shaft, to turn counterclockwise. The roller on the lever then rotates around the fulcrum, stretching the feedback spring. The spring pulls the lever 2 until the force from the bellows with the signal pressure reaches equilibrium. At this point, a specific signal pressure corresponds to a specific valve position.
This mechanism is known as a **positive acting** system, where an increase in signal pressure results in an increase in output pressure. Conversely, a **reverse acting** system would decrease the output pressure when the signal increases. A positive-acting actuator can perform like a reverse-acting one if a reverse-positioner is installed, and vice versa.
**3) Types of Regulating Valves**
Regulating valves typically consist of an electric or pneumatic actuator combined with a valve body. They come in two main types:
- **Linear Stroke Valves**: These include single-seat and double-seat designs. Double-seat valves are often used in high-flow and high-pressure drop applications due to their large flow capacity and stable operation.
- **Angular Stroke Valves**: These include V-type Ball Valves, butterfly valves, eccentric butterfly valves, and others. They are ideal for applications requiring precise control and quick response.
**4) Related Information**
For more details about gas equipment and pressure regulation systems, you can visit the following website: [http://news.chinawj.com.cn](http://news.chinawj.com.cn). This platform provides up-to-date information and insights into the gas industry, including product reviews, technical specifications, and expert opinions.
**Editor:** Hardware Business Network Information Center
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