Material issue with the air source solenoid valve
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This post was last edited by Zhizhi Ming on 2023-1-7 at 19:15. What is the difference between copper valves and 316SS valves when it comes to the material used for air supply solenoids?
Solenoid valves come in various structures, and the required materials are determined based on specific needs. It’s best to consider the brand choice for reference.
Solenoid valves are preferably made of stainless steel. Copper has usage limitations, such as in ammonia-rich environments.
Got it, the “ammonia environment.” Thank you for answering.
For solenoid valves used in instrument air supply, the main consideration is corrosion protection of the housing
The corrosion issues caused by the external environment should be taken into consideration.
The difference lies in whether the gas source is corrosive. Typically, the gas source used in the chemical industry refers to air, but gases such as natural gas are also used in practice. Stainless steel is corrosion-resistant but expensive. Copper has a low price, and some media (ammonia) are not suitable for use.