What are the Reasons For the Rust on the Surface of the Gate Valve?

For stainless steel gate valves, I believe many people are familiar with them. They often see them in life. They feel that they will not rust, but some have rust. For this reason, many people do not understand. Think it is a quality problem, so what is going on? Is it a quality problem? As a Gate Valve Supplier, share with you. In fact, the reasons for the rust on the surface of the stainless steel gate valve are as follows.

DIN F4 Gate Valve

1. Electrochemical corrosion

If the surface of the stainless steel gate valve has some other metal element powders or other attachments of foreign metal particles, these powders and attachments in the humid air will interact with the condensed water in the stainless steel to produce a micro battery. In turn, an electrochemical reaction is initiated, which causes rust on the surface.

2. Organic liquid adheres to the surface

Sometimes if there is some organic liquid on the surface of the stainless steel gate valve, it will form an organic acid in the presence of water and oxygen, and this organic acid will have a corrosive effect on the surface of the metal, so rust will appear on the surface. Or the surface of the stainless steel gate valve has some acid, or alkaline substances and salt substances, which can also cause rust on the surface.

3. Polluted air

If the air is polluted, the air contains a lot of sulfide or carbon oxide, nitrogen oxide and other gases. These gases will form sulfuric acid and nitric acid when they meet the condensed water. They will also cause chemical corrosion and cause rust on the surface of the stainless steel gate valve. .

All in all, there are many reasons for the rust on the surface of stainless steel gate valves. The rust is not due to quality problems. In daily use, you must pay attention to the above factors to avoid rust.

Our company also has DIN F4 Gate Valve on sale, welcome to contact us.