1. Characteristics of corrosive fluids and hazards to equipment
Corrosive fluids refer to liquids or gases with strong chemical properties that are easy to corrode equipment. They are widely used in chemical, petroleum, power and other industries. The hazards of corrosive fluids to equipment are mainly manifested as follows:
①Corrosion of pipeline walls and equipment surfaces, resulting in leakage, seepage and breakage;
②Reducing the life of equipment and increasing the cost of maintenance and replacement;
③May cause harm and pollution to the environment and human body.
2. Valve types and usage recommendations for corrosive fluids
Choosing valve types and materials suitable for corrosive fluids is the key to reducing corrosion hazards. The following are valve types and usage recommendations for corrosive fluids:
①Plastic valves: Suitable for the control and regulation of corrosive fluids, with the advantages of corrosion resistance, acid and alkali resistance, etc. Common plastic valves include PVC valves, PP valves, PVDF valves, etc.
②Ceramic valves: Suitable for high temperature, high pressure, corrosive media, with high corrosion resistance and mechanical strength. Common ceramic valves include zirconia ceramic valves, silicon carbide ceramic valves, etc.
③ Stainless steel valves: suitable for general corrosive media, with high corrosion resistance and strength. Stainless steel valves are available in a variety of materials and specifications.
When selecting valves, the corrosiveness, wear resistance, high temperature resistance, pressure resistance and other properties of the material should be considered comprehensively based on parameters such as fluid temperature, pressure, PH value, flow rate and fluid composition, combined with the working environment and requirements of the equipment.
3. Precautions for using corrosive fluid valves
① During installation, pay attention to the direction and position of the valve to avoid reverse flow of the fluid and accidental opening of the valve.
② Check the sealing and mobility of the valve frequently, and clean and replace damaged parts in time.
③ When repairing and replacing valves, follow relevant safety regulations and operating procedures to avoid accidents and pollution.
