2025-07-22
Choosing a ball valve is simple and complex. The key depends on where it is used. I will give you some practical suggestions. You can go right by following this idea.
First, look at the material. Food factories must use 304 or 316 stainless steel, and pharmaceutical and chemical industries must consider corrosion-resistant Hastelloy. Ordinary tap water can use cast steel, which is cheap and durable.
Secondly, look at the pressure level. PN16 is enough for household pipes, but chemical plants often need high-pressure valves above PN40. You must also pay attention to the temperature. For hot oil transportation, you must choose a heat sink, and for sub-zero environments, you must have an anti-freeze design.
The operation method is also very important. Manual valves are cheap but laborious, and pneumatic and electric valves are suitable for automated production lines. Now smart valves can also be controlled by networking, which is especially suitable for occasions that require remote monitoring.
Finally, remind a few details: the valve diameter should be one size smaller than the pipe to prevent water hammer effect; food-grade valves must be selected with sanitary design and no sanitary dead corners; remember to ask for material reports and explosion-proof certification before buying.
Remember these points and you can basically avoid 80% of the pitfalls when purchasing a ball valve. If you are really unsure, it is better to send the working parameters directly to the manufacturer and let them recommend the most suitable model for you.
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