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The same goes for valves. With these standards in place, everyone can communicate in a common language during production, procurement, and installation.

First, think about the most common faucet in your home, or the old-fashioned iron disc valve you have seen. The piece (disc) of that switch is threaded through a shaft (valve stem) in the center. When it's opened or closed, that disc rubs against the sealing ring, just like rubbing an eraser against a table. Over time, it will definitely leak.

Here is the most crucial principle: Valves are made of metal, and metal has a temper - it becomes "soft" when exposed to high temperatures, and its strength decreases. The same valve may be able to withstand 20 kilograms of pressure when it's cool, but if you throw it into a scorching environment of several hundred degrees Celsius, it might not even be able to handle 10 kilograms.

PVC Material Ball Valve has become an essential component in modern piping systems, offering unmatched durability and reliability. As someone managing fluid flow in industrial or residential applications, I often ask myself: why should I rely on PVC Material Ball Valve over traditional metal valves? The answer lies in its lightweight structure, corrosion resistance, and ease of maintenance. PVC Material Ball Valve ensures smooth operation and reduces long-term costs, making it a practical choice for both water and chemical pipelines.

Once the medium is defined, the next step is to determine the valve's primary function. Is its main purpose simply to start and stop flow (on/off isolation)? If so, ball valves, gate valves, and plug valves are excellent choices due to their tight seal.

Low-temperature steel butterfly valves are special types of shut-off or regulating valves specifically designed for extreme low-temperature medium conditions (typically referring to working temperatures below -46℃).