I would like to ask about the difference between ordinary valve manufacturers in China and those that specialize in control valves

The biggest difference between electric valves, pneumatic valves, and ordinary manual valves lies, of course, in the actuator. You’re right too; valve manufacturers can of course purchase valves from other suppliers as well, and some valve manufacturers do exactly that, since there are only a few companies that produce high-quality regulators and similar products. But whether it can be done well or whether it can be pushed forward is another matter. Sometimes it’s better to specialize in a particular field and excel in what you do.

I understand that the core advantage of Wuzhong valves over Huguang valves lies in their compatibility with valves and positioners, right?

These days, every industry has its own niche markets. On the one hand, for owners, different manufacturers have different strengths; none of them are excellent in every aspect, and those that are good in everything certainly don’t have competitive prices； On the other hand, for manufacturers’ suppliers, there are also niche markets for actuators and similar products; many people specialize in this area and do not need to deal with end-users.

Your question doesn’t really make much sense. Those who work on manual valves have to do similar work to those who work on control valves, and those who work on control valves again have to handle things similar to those of cut-off valves. It then evolves to include all kinds of valves with various types of offsetting, eccentricity, and different valve designs – it can be expanded indefinitely. Both manual valves and control valves require technical expertise; it’s not something that can be done simply because they seem similar. The difference between a control valve and a manual valve lies in the actuator used – the quality of this actuator directly affects the efficiency of the control valve. It’s not something that can be accomplished just by saying so; many market factors also need to be taken into account. If you produce these valves, there must be buyers for them. If your main business is manual valves and you decide to enter the control valve market, you need to be competitive, and you’ll also have to invest in research and development, as well as in human and financial resources to penetrate the market and conduct marketing efforts. All of these are risks – it’s not something that can be done simply by saying so; a comprehensive consideration is necessary. Of course, if you insist on asking whether it’s possible to create something that’s similar to both, then it’s definitely possible.

The biggest difference between electric valves, pneumatic valves, and manual valves is not the actuator at all! ! ! !

Electric valves and pneumatic valves show no fundamental difference from manual valves in terms of functioning as on/off valves. The essential difference between electric valves, pneumatic valves and manual valves in terms of regulation lies in the following: 1. Electric valves and pneumatic valves have a wide range of characteristic curves； Manual valves—2. Electric valves and pneumatic valves come in various types, each with its own characteristic curve ； Manual valves--- 3. Electric and pneumatic valves have different valve components corresponding to various flow coefficients ； Manual valves—4. Electric and pneumatic valves come with different valve components suitable for various operating conditions ； Manual valves—5. Electric and pneumatic valves have technical requirements regarding their control performance under various operating conditions, such as adjustable ratio calculations, constraints related to flashing, and noise levels, among others. . .

Dude, there’s a fundamental difference. A manual valve is similar to the faucet in your home – it is used to turn water on and off, and precise control of flow rate or pressure is not required. For control valves, the precision with which flow rate can be adjusted is of key importance; manufacturers need flow laboratories to conduct numerous tests in order to create flow characteristic curves, and they also have to develop calculation software – all of which require a great deal of precise work. Additionally, Wuxi produces its own control valves, cylinders, and positioners; only a few large-brand manufacturers are capable of doing this. Some smaller brands have to purchase their positioners externally, and even their cylinders as well. I have been in the sales of workwear products in Wuxi for ten years; feel free to contact me if you have any questions. 13102199480

Thank you for your guidance. Can I understand it this way: for a DN50 ball valve used as a control valve versus one used as a regular manual valve, their manufacturing processes are different, right?

If you visit factories that produce manual valves and those that produce automatic valves, you’ll understand. The processing requirements for automatic valves are very high, and the grinding workshop is equipped with advanced machinery. Control requires high-quality design, processing, and tuning. There are domestic manufacturers of positioners, with Wuzhong Chuanyi being relatively well-known. Various imported options are available. The difference lies in the fact that control valves are more expensive than manual valves.