The role and corrosion of air compressor valves

The valve is a control component in the fluid delivery system, with functions such as cut-off, regulation, diversion, anti-backflow, voltage regulation, shunt or nourishing pressure relief. Valves for fluid control systems range from the simplest shut-off valves to the extremely complex self-control systems used in a wide variety of sizes and sizes.


The air valve of the air compressor utilizes the air pressure difference between the two sides of the air valve, and the force of the spring, so that the valve plate of the air compressor is opened and closed in time and automatically, so that the gas can be smoothly sucked into and discharged from the cylinder. Therefore, the air valve of the air compressor is required to meet the following requirements; the sealing performance of the air valve is good, and the resistance is small: the opening and closing of the valve plate of the air valve is timely, rapid and complete: the clearance volume caused by the air valve is small: the structure is simple High material strength, good toughness, wear resistance, corrosion resistance, good mechanical properties, easy to manufacture, repair and install, and generalized and standardized.



Valve corrosion



Corrosion is the most common natural damage of air compressor valves during storage and use, which is extremely harmful to the quality of the valve. There are two main reasons for corrosion;



1, uniform corrosion



Uniform corrosion is performed on the entire surface of the metal. Such as stainless steel, aluminum, iron and other protective film produced in the Binhua environment, the metal under the film is evenly corroded. There is also a phenomenon; metal surface corrosion and peeling, this corrosion is the most dangerous.



2, local corrosion



Localized corrosion occurs at local locations of the metal. Its morphology is pitting, crevice corrosion, intergranular corrosion, delamination corrosion, stress corrosion, fatigue corrosion, selective corrosion, wear corrosion, and cavitation corrosion.

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