The petrochemical and chemical industry is one of the most demanding industrial environments, where safety, reliability, and precision are crucial. Media such as acids, alkalis, solvents, and high-temperature gases require valves that can ensure long-term stability under extreme conditions. Tianjin Dingliu Valve Industry Co., Ltd., as a high-tech enterprise specializing in valve and automation solutions, provides a complete product line designed for these challenges, ensuring safe and efficient plant operations.
Dingliu offers a wide range of products for petrochemical and chemical plants, including:
High-performance double-eccentric butterfly valves (Wafer/Flanged type): suitable for large pipelines, resistant to corrosion and high temperature.
All-lined fluorine (PTFE/PFA) butterfly valves and ball valves: ideal for strong acid and alkali environments, preventing leakage and corrosion.
Pneumatic and electric actuators: providing precise control for automated process lines, compatible with explosion-proof standards.
Globe valves, gate valves, and check valves: used for high-pressure and high-temperature applications, ensuring zero leakage sealing performance.
Control valves and regulating valves: achieving stable flow and pressure control in complex chemical processes.
All products are certified with CE, SIL, and explosion-proof certifications, ensuring compliance with international petrochemical standards.
In a petrochemical refining project in Southeast Asia, Dingliu supplied over 300 sets of PTFE-lined butterfly valves and pneumatic control valves for acid recovery and alkali neutralization systems.
Working conditions: Medium containing 35% hydrochloric acid, temperature 80°C.
Challenge: Local valves corroded within 6 months.
Solution: Dingliu used full PFA lining with 316L stainless steel body and pneumatic actuators with explosion-proof enclosures.
Result: Continuous operation for over 24 months without corrosion or leakage, reducing replacement frequency by 70%.
Dingliu’s solutions focus on automation, corrosion resistance, and safety:
Corrosion-resistant materials: PTFE/PFA/316L/Hastelloy available for harsh chemical media.
Smart automation control: Integration with DCS/PLC systems, achieving remote operation and monitoring.
Explosion-proof design: Electrical actuators certified for explosive gas environments (Ex d IIB T4).
Customized engineering: Each valve and actuator combination is optimized for specific process conditions and media characteristics.
By applying Dingliu’s advanced valve technology:
Maintenance and downtime costs decreased by 40%.
Service life of critical valves extended by 2–3 years.
Process stability improved by 30%, reducing production loss from unplanned shutdowns.
Long-term ROI increased through reduced spare part consumption and labor costs.
Chemical and petrochemical plants face strict environmental regulations. Dingliu’s valves are designed to:
Prevent leakage of toxic and corrosive fluids.
Reduce fugitive emissions with high-grade sealing technology.
Support safe remote operations through explosion-proof automation systems.
Comply with ISO14001 environmental management and SIL safety integrity standards, ensuring both ecological and operational safety.
Clients from Saudi Arabia, Malaysia, and South Africa have consistently praised Dingliu’s valves for:
Stable operation in high-temperature acid and alkali media.
Quick technical response and excellent after-sales support.
Flexible customization to fit non-standard flange dimensions and actuator torque requirements.
One client commented:
“Dingliu valves have significantly improved our plant’s safety and efficiency. Their corrosion resistance and automation integration set them apart from other suppliers.”
Dingliu continues to innovate with:
Development of IoT-enabled smart valves, enabling real-time performance monitoring.
Research into next-generation fluoropolymer linings for ultra-corrosive environments.
Expansion of global service centers to provide faster local support in petrochemical regions.
From refining units to chemical synthesis lines, Dingliu’s valve and automation solutions demonstrate outstanding durability, precision, and reliability. Through advanced materials, intelligent control, and a commitment to quality, Dingliu helps petrochemical and chemical enterprises achieve safer operations, lower maintenance costs, and higher process efficiency.
As the global industry moves toward cleaner and smarter production, Dingliu remains committed to providing innovative valve solutions that meet the evolving needs of the petrochemical world.
Tianjin Dingliu valve Industry Co., Ltd. is a high-tech enterprise specializing in the valve and automation industry.
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