Anti corrosion methods for needle valves
Anti corrosion methods for needle valves
The main Needle Valve product names of China Needle Valve Network include:EN5-15 1151-type Integrative Two-valve Manifold,FJ61W High Temperature And Pressure Needle Valve,GMJ14F/H-250 High Sealing Sampling Valve,GMJ11F/H-25 High Sealing Sampling Valve,J21W/H Internal And External Pressure Gage Needle Valve,J43W/H Flange Needle Valve,JJ•BY1 Single Flange Pressure-taking Needle Valve,J61Y/W High Temperature and Pressure Needle Valve
1. The main materials used for the valve body are stainless steel and carbon steel. The difficulty in choosing valve body materials also lies in not only considering corrosion issues, but also taking into account factors such as pressure and temperature resistance, economic feasibility, and ease of purchase.
2. Adopt lining measures, such as lining with lead, lining with aluminum, lining with engineering plastics, lining with natural rubber, and various synthetic rubbers. If the medium conditions permit, this is actually a cost-effective method.
3. Under low pressure and temperature conditions, using non-metallic materials as valve body materials can often effectively prevent corrosion.
4. In addition, the outer surface of the needle valve body is also subjected to atmospheric corrosion, and generally steel materials are protected by painting.
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