Self-operated Regulating Valve

The English name for a self-operated regulating valve is "Self-Operated Regulator," directly translated as "automatic regulator." It is a valve device that integrates detection, transformation, control, and execution, significantly differing from control valves. The notable characteristic of a self-operated regulating valve is that it requires no external energy source (such as electricity or gas) and directly utilizes the inherent energy of the controlled medium for automatic control and operation. Any valve that relies on an auxiliary energy source cannot be classified as "self-operated." This concept must be clarified to avoid misunderstandings for suppliers or manufacturers.

There are four main categories of self-operated valves:

1. Self-operated pressure regulating valves
2. Self-operated temperature regulating valves
3. Self-operated flow regulating valves
4. Self-operated level regulating valves

Among these, self-operated pressure regulating valves have the most varieties, including the following types:

• ZZY type pressure regulating valve
• ZZV type micro-pressure valve
• ZZC type differential pressure valve
• ZZJP type pilot-operated pressure regulating valve (with nitrogen sealing device)
• ZFQ type all-weather flame-arresting breathing valve