Introduction
Plastic Lined Butterfly Control Valves are engineered to deliver high-performance flow control in the most demanding industrial environments. Featuring a sophisticated three-eccentric design and advanced sealing technology, these valves ensure precise modulation, exceptional corrosion resistance, and extended service life—particularly in corrosive, high-pressure, and high-temperature applications.
Whether in chemical processing, power generation, water treatment, or petrochemical operations, plastic lined butterfly control valves provide a reliable solution for managing aggressive media while minimizing leakage and operational torque.
Key Advantages of Plastic Lined Butterfly Control Valves
1. Wide Range of Sizes and Pressure Ratings
Available in sizes from DN15 to DN1000, these valves are compatible with multiple pressure standards:
PN6 / PN10 / PN16
ANSI Class 150 / 300 / 600
This versatility makes them suitable for integration into various global piping systems.
2. Exceptional Corrosion Resistance
Lined with premium fluoroplastics such as F46 (PTFE) and PFA, the valves resist corrosion from aggressive chemicals, acids, and alkalis. Valve bodies are available in:
WCB (Carbon Steel)
CF8 (304 Stainless Steel)
CF8M (316 Stainless Steel)
This material flexibility ensures optimal performance in a wide range of chemical environments.
3. Reliable, Leak-Free Sealing
Designed to meet ANSI B16.104 Class VI leakage standards, the valves provide zero leakage performance. Optional metal sealing configurations meet Class IV or V standards, enabling use in high-pressure, high-temperature systems.
4. Advanced Three-Eccentric Disc Design
The innovative three-eccentric geometry significantly reduces friction between the disc and seat, resulting in:
Reduced wear on sealing surfaces
Stable and consistent torque during operation
Fast response and equal-percentage flow for precise control
5. High Modulation Accuracy
With a control ratio up to 100:1, these valves offer outstanding adjustability, supporting applications such as:
Chemical dosing
Multi-phase fluid regulation
Process optimization in complex systems
6. Wide Temperature and Media Compatibility
Sealing materials include PTFE, RTFE, and flexible graphite, allowing for operation across a broad temperature range:
Standard range: -30°C to +150°C
Optional range: -40°C to +570°C
These valves are suitable for fluids including water, steam, air, gas, oils, and highly corrosive chemicals.
Additional Features
Low Torque Operation: Ideal for automation and energy-efficient actuation
Compact, Lightweight Design: Simplifies installation in tight spaces
Flange End Connection Compatibility: Conforms to GB/T 12221, ASME B16.10, API 609, and ISO 5752
Multiple End Types: RF, RJ, FM, lug, and wafer options available
Key Industries Applications
1. Chemical Processing
Acid production
Dosing and neutralization systems
Pipeline corrosion protection
2. Water Wastewater Treatment
Flow control in municipal systems
Industrial effluent management
Chemical treatment and disinfection
3. Pharmaceutical Food Industries
CIP/SIP systems
Hygienic fluid handling
Ingredient mixing and metering
4. Petrochemical, Oil Gas
Offshore platforms
Refinery process control
High-pressure chemical injection
5. HVAC Power Generation
Steam and cooling water regulation
Thermal loop isolation
Energy-efficient process control
6. Mining Metallurgy
Slurry and leaching solution control
Acid handling in hydrometallurgy
Dust suppression and wash-down systems
Conclusion
Plastic lined butterfly control valves represent a modern solution for complex flow control challenges in corrosive and high-performance applications. By integrating three-eccentric design, multi-level sealing, and corrosion-resistant linings, they provide unmatched durability, accuracy, and energy efficiency.
As a leading manufacturer of plastic lined butterfly control valves in China, we are committed to innovation, quality manufacturing, and delivering tailored solutions for global industrial valve applications.Know more about Google SEO Directory
