In industries such as chemical, pharmaceutical, electroplating, marine engineering, and environmental water treatment, corrosive media such as strong acids, strong alkalis, salt solutions, organic solvents, and halides consistently pose a major challenge to the safety and service life of pipeline systems. As a core component of fluid control systems, the corrosion resistance of valves directly determines the system’s stability, safety, and overall maintenance costs.
WEIZIDOM, deeply rooted in fluid control and valve engineering, has built a complete high-performance corrosion-resistant valve product system based on a profound understanding of materials science, sealing technology, and complex operating conditions. This system provides reliable and long-term stable solutions for various harsh applications.
Product Advantages: Straight-through flow channel design, extremely low flow resistance, suitable for pipeline conditions requiring full open/close and minimal pressure drop.
Structure and Material Selection:
1. CF8 / CF8M Stainless Steel Gate Valves
2. Duplex Steel Gate Valves
3. Fully Fluorine-Lined Gate Valves (Suitable for Medium to High Corrosion Environments)
WEIZIDOM By optimizing the guide rail structure, sealing surface material, and surface treatment process, the reliability and service life of gate valves under corrosive conditions are effectively improved.
Typical Applications: Water treatment systems, inlet and outlet of large storage tanks, pipelines for cleaning corrosive liquids and gases.
Product Advantages: Compact structure, lightweight, especially suitable for large-diameter, high-flow pipeline systems, balancing performance and economy.
Core Series:
PTFE-Lined Butterfly Valves: The valve body cavity and butterfly plate are fully covered with PTFE/FEP, offering excellent corrosion resistance and making it an ideal alternative to high-alloy valves.
Duplex Steel Butterfly Valves (2205 / 2507): Possesses excellent resistance to chloride ion stress corrosion, suitable for seawater and chlorine-containing media environments.
Typical Applications: Environmental desulfurization systems, industrial wastewater treatment, corrosive gas and slurry transportation.
Product Function: Prevents backflow of corrosive media, protecting pumps, heat exchangers, and critical equipment.
Structure Types: Swing, lift, and wafer check valves; material can be consistent with main pipeline valves to ensure uniform corrosion resistance across the system.
Product Advantages: Utilizes a diaphragm to completely isolate the medium from the drive mechanism, achieving zero external leakage; smooth flow path with no dead angles, meeting high cleanliness and safety requirements.
Material Configuration:
Valve Body: CF8M, stainless steel lining, PVC, PP
Diaphragm: PTFE / PFA Lined Rubber, Perfluororubber
Applications: Pharmaceuticals, Bioengineering, High-purity Chemicals, Highly Corrosive Slurries, and Radioactive Media
Product Advantages: Corrosion-resistant ball valves feature rapid opening and closing, low flow resistance, and reliable sealing performance. They are suitable for high-frequency opening and closing and critical shut-off conditions, and support full-bore and reduced-bore designs.
Key Material Configuration:
Valve Body Material: 316/316L Stainless Steel, Monel, Hastelloy B/C, Titanium (Ti), Alloy 20
Internal Components and Seals: PTFE/PFA lined with fluoropolymer, ceramic lining, or equivalent high-performance alloy
Fully Fluorine-Lined Ball Valves: Achieve complete isolation between the medium and metal components, significantly improving corrosion resistance.
Typical Application Media: Sulfuric acid, hydrochloric acid, phosphoric acid, alkaline solutions, chloride solutions, organic acids, and other highly corrosive fluids.
Y Shut-off Valve: Low flow resistance, erosion-resistant seat, suitable for both regulating and tight-closing applications.
PTFE-lined Control Valve: Enables precise flow control for corrosive media.
Sampling Valve: Provides a safe and reliable sampling solution for corrosive media.
WEIZIDOM supports non-standard customization, allowing for specialized design based on process parameters and media characteristics.
WEIZIDOM corrosion-resistant valves strictly adhere to international standards such as API, ANSI, and ISO, and have passed a complete performance and sealing testing system. Our core advantages are:
💡 Precise material matching capabilities
💡 Mature and reliable sealing and corrosion-resistant structural design
💡 Extensive experience in engineering projects
1. Electroplating/Pickling/Hydrometallurgy: PTFE-lined ball valves, PTFE-lined butterfly valves, alloy valves
2. Chemical Storage and Transportation Systems: PTFE-lined ball valves, stainless steel valves, large-diameter PTFE-lined gate valves
3. Pharmaceutical/Food/High-purity Media: Diaphragm valves, high-polish stainless steel valves
4. Seawater Desalination/Offshore Platforms: Duplex steel valves, titanium valves
5. Environmental Protection/… Wastewater Treatment: PTFE-lined butterfly valves, duplex stainless steel valves
6. Power Plant Water Treatment Systems: Stainless steel gate valves, globe valves
7. Conclusion: Choosing the right corrosion-resistant valve starts with professional selection
In complex and variable corrosive conditions, selecting the right valve is crucial for ensuring the safety and long-term stable operation of the system. WEIZIDOM, leveraging its extensive product line and engineering experience, can provide professional selection advice and customized solutions based on your media composition, concentration, temperature, pressure, and process requirements.
For technical support or project consultation, please contact the WEIZIDOM technical team. We will help your system achieve safer, more efficient, and more economical long-term operation.
