Plastic Lined Butterfly Control Valves: Precision, Durability, and Chemical Resistance

Plastic Lined Butterfly Control Valves: Precision, Durability, and Chemical Resistance

Introduction

Engineered for high-performance applications in corrosive and demanding industrial environments, plastic lined butterfly control valves deliver precise flow control, extended service life, and exceptional sealing integrity. Incorporating a cutting-edge three-eccentric design and a variety of advanced sealing options—including soft, metal, and hybrid solutions—these valves are tailored for industries requiring dependable, low-maintenance operation.

Ideal for chemical processing, water treatment, power generation, and other critical sectors, these valves offer a highly reliable and energy-efficient solution for controlling a wide range of fluids under diverse conditions.

Key Advantages

1. Wide Size and Pressure Range Compatibility

Available in sizes from DN15 to DN1000, these valves are engineered for seamless integration into global pipeline systems. Supported pressure ratings include:

• PN6, PN10, PN16
• ANSI Class 150, 300, 600

2. Outstanding Corrosion Resistance

Equipped with durable liners such as F46 (PTFE) and PFA, these valves withstand aggressive chemicals, acids, alkalis, and oxidizing agents. Valve body options include:

• WCB (carbon steel)
• CF8 (304 stainless steel)
• CF8M (316 stainless steel)

These materials ensure compatibility with a wide range of corrosive and high-stress environments.

3. Zero Leakage Performance

Designed to meet ANSI B16.104 Class VI leakage standards, these valves ensure leak-free operation even in highly sensitive applications. For high-temperature and high-pressure systems, metal-seated variants meet Class IV or V leakage standards.

4. Three-Eccentric Structure for Low Wear and High Precision

The innovative three-eccentric design offers several key benefits:

• Reduced friction between disc and seat
• Longer service life of sealing surfaces
• Stable torque characteristics during operation
• Quick-opening response with equal-percentage flow, ideal for throttling and tight shutoff

5. High Modulation Accuracy

With a control ratio of up to 100:1, these valves provide accurate and responsive modulation—essential for:

• Precise dosing and metering
• Multi-phase flow applications
• Automated chemical treatment systems

6. Flexible Sealing and Temperature Adaptability

Multiple packing materials—such as PTFE, RTFE, and flexible graphite—allow optimal performance across a broad temperature range:

• Standard Range: –30°C to 150°C
• Extended Range (optional): –40°C to 570°C

Additional Performance Features

• Low Torque Operation: Eccentric design reduces actuation effort, supporting manual or cost-effective electric/pneumatic actuation.
• Compact & Lightweight: Easy to install in confined spaces without compromising strength or reliability.
• Multi-Standard Compatibility: Complies with GB/T 12221-2005, ASME B16.10, API 609, and ISO 5752.
• Flexible End Connections: Available in RF, RJ, FM, lug, and wafer types for full piping compatibility.
• Broad Media Suitability: Handles water, steam, gas, oil, air, and corrosive chemicals with ease.

Target Industries and Applications

1. Chemical Processing

Perfect for pipelines transporting acids, alkalis, solvents, and reactive fluids. Common use cases include:

• Acid production systems
• Chemical dosing control
• Corrosive fluid containment

2. Water and Wastewater Treatment

Delivers dependable control for both municipal and industrial systems. Used for:

• Clean water regulation
• Effluent management
• Chemical disinfection and neutralization

3. Pharmaceuticals and Food Processing

Supports sterile, sanitary processes where contamination control is essential:

• CIP (Clean-in-Place) and SIP (Sterilize-in-Place) systems
• Pharmaceutical batching
• Food-grade liquid regulation

4. Oil, Gas, and Petrochemical

Withstands the rigors of offshore platforms, refineries, and chemical injection systems:

• High-pressure corrosive fluid control
• Gas scrubbing and separation
• Pipeline isolation

5. HVAC and Power Plants

Crucial for controlling steam, condensate, and chilled water in thermal and cooling systems:

• Process loop regulation
• Energy-efficient distribution
• System balancing

6. Mining and Metallurgy

Engineered for rugged service with abrasive slurries, leachates, and tailings:

• Acid dosing in hydrometallurgy
• Slurry and wash water management
• Dust suppression systems

Conclusion

Plastic lined butterfly control valves represent a next-generation solution for industries demanding corrosion resistance, zero-leakage performance, and accurate flow modulation. Backed by a robust three-eccentric design and tailored material options, they provide exceptional operational reliability and extended service life in even the harshest environments.

Whether supporting energy savings in HVAC networks or managing corrosive chemicals in refineries, these valves combine engineering innovation with field-proven durability—making them a trusted choice for modern process control systems.

As a leading manufacturer of plastic lined butterfly control valves in China, we are dedicated to delivering high-quality, customizable solutions that meet the evolving needs of global industry.Know more about Google SEO Directory