1. Sulfur resistant materials and certification
The main pressure bearing components are made of sulfur resistant materials (such as low-carbon austenitic stainless steel, special alloys) certified by standards (such as NACE MR0175/ISO 15156), and undergo appropriate heat treatment to eliminate stress, ensuring long-term safety in wet hydrogen sulfide environments.
2. Anti corrosion and hardening treatment
The surface of the internal components can undergo special hardening or coating treatment (such as nickel phosphorus plating, nitriding) to improve wear resistance and acid corrosion resistance.
3. "W" - shaped valve body sealing surface
The sealing surface is directly processed or welded from sulfur resistant valve body material, which is economical and practical, and can meet the sealing requirements of acidic medium working conditions.
4. Strict leakage control
For toxic and harmful acidic media, valve design requires lower allowable leakage rates and more rigorous sealing structures.
5. Suitable for harsh acidic environments
Specially designed for high-risk environments containing H2S and CO2, such as oil and gas field extraction, natural gas purification, sulfur-containing equipment in refineries, and acid gas treatment in coal chemical industry.