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The check valve is installed in the pipeline to prevent the medium from flowing backward. The check valves with different materials can use in various types of pipelines, like water, oil, and gas. So what materials do we use to produce the check valve?

Commonly the materials we used for check valves are cast iron, cast steel, stainless steel, brass, plastic, etc. Therefore, the check valves can be divided into cast Iron check valve, cast steel check valve, stainless steel check valve, brass check valve, and plastic check valve. Let me introduce you one by one.

Cast iron check valve: It is mainly used in water, oil, and water vapor. It can¡¯t be resistant the high temperatures and high pressure.

Cast steel check valve: It has the characteristics of high-pressure resistance and high-temperature resistance and is mainly used for high-temperature liquid, high-pressure gas, and other media.

Stainless steel check valve: stainless steel has good anti-corrosion and anti-corrosion properties, and is mainly used for wastewater, hot water, waste gas, and other media.

Brass check valve: mainly used in HVAC pipelines, overheated water, and hot water, not easily to be rusted.

Plastic check valves are mostly for household use.