Basic principle of direct gas pressure regulator
Hebei Yuanyue Trading Co.,Ltd , https://www.hbyuanyue.com
September 09 10:36:58, 2025
The direct gas pressure regulator is a critical component in gas pressure control systems. It operates based on a simple yet effective principle, making it widely used in various industrial and commercial applications. This type of regulator consists of two main parts: the pilot valve and the main valve. Its design is compact and user-friendly, allowing for precise and reliable pressure regulation.
So, what is the basic principle of a direct gas pressure regulator? In essence, it works by using the pressure from the supply (P1) to control the flow through the pilot valve. This pilot valve regulates the pressure acting on the main diaphragm, which in turn controls the opening and closing of the main valve. As a result, the output pressure (P2) is maintained at a stable and desired level.
The process begins when the pilot valve is adjusted to control the spring force, allowing P1 to pass through the pilot valve and reduce its pressure to P3. This P3 then acts on the large diaphragm, pushing the main valve open. Once the output air flows through, it applies pressure on both the main and pilot diaphragms, causing the main and pilot valves to close. This creates a balance between the forces acting on the diaphragms.
By adjusting the pilot valve, the set value of P2 can be controlled. When the system is in equilibrium, the forces from P2 and the main spring on the large diaphragm are balanced, as well as the forces from P3 and the pilot spring on the pilot diaphragm. At this point, the airflow entering and exiting the pilot valve is equal, keeping the pilot and main valves in an open state, ensuring stable P2.
If the load increases and P2 drops, the balance is disrupted. This causes the pilot and main valves to open further, increasing the flow until P2 returns to the set value. The system then re-establishes equilibrium. Conversely, if P2 rises above the set point, the valves will close slightly, reducing the flow and bringing the pressure back down.
In summary, the direct gas pressure regulator uses a combination of mechanical components and pressure dynamics to maintain a consistent output pressure, making it an essential tool in many gas control systems. Whether in HVAC, manufacturing, or laboratory settings, this device ensures safe and efficient operation.
Source: http://news.chinawj.com.cn
Image: http://i.bosscdn.com/blog/18/27/43/841643.jpg
Editor: Hardware Business Network Information Center