Desulfurization Butterfly Check Valve – Complete Product Guide

Introduction

The Desulfurization Butterfly Check Valve is engineered for industrial systems handling flue gas desulfurization (FGD), chemical processing, and corrosive fluid pipelines. Its robust design and corrosion-resistant materials make it ideal for preventing backflow and maintaining unidirectional flow in highly acidic or harsh environments.

Built with high-quality stainless steel and specialized alloys, this valve ensures durable performance, leak-free sealing, and long-term reliability. Its compact butterfly design enables space-efficient installation, reduced maintenance, and smooth operation.

This guide provides a detailed overview of applications, quality standards, environmental performance, and operational tips, ensuring optimized performance and longevity.

1. Key Features and Advantages

Product Highlights

• Corrosion-Resistant Materials: Stainless steel and alloy construction prevent degradation in acidic environments.

• Backflow Prevention: Ensures reliable unidirectional flow in critical systems.

• Compact Butterfly Design: Allows for wafer-style, space-saving installation.

• Low Maintenance: Simple operation reduces downtime and operational costs.

• Wide Industrial Applications: Suitable for power plants, chemical plants, and exhaust gas treatment systems.

• Environmental Compliance: Supports eco-friendly operations by enhancing desulfurization system efficiency.

Technical Specifications

2. Suitable Applications

The Desulfurization Butterfly Check Valve is widely used in industrial systems requiring reliable backflow prevention and corrosion resistance:

• Flue Gas Desulfurization (FGD) Systems: Controls flow of acidic flue gas and protects pumps.

• Chemical Processing Plants: Handles corrosive fluids and harsh chemical pipelines.

• Power Plants: Ensures safe and efficient circulation of desulfurization liquids.

• Industrial Exhaust Treatment Systems: Provides leak-free sealing and reliable backflow prevention.

Application Table

3. Quality and Detection Standards

Ensuring high-quality performance is crucial for desulfurization systems and industrial applications:

• Pressure Testing: Each valve undergoes hydrostatic pressure tests to ensure leak-free operation.

• Dimensional Verification: Precision machining ensures accurate flange alignment.

• Corrosion Testing: Materials are tested under acidic conditions for resistance.

• Flow Performance Evaluation: Verifies smooth disc movement and reliable backflow prevention.

• Compliance: Adheres to API 594, ISO 5208, and ANSI/ASME B16.34 standards for butterfly and check valves.

Quality Inspection Table

4. Environmental Performance

The Desulfurization Butterfly Check Valve supports eco-friendly industrial operations:

• Corrosion Resistance: Prevents leaks and chemical spills in FGD systems.

• Flow Efficiency: Minimizes pressure drops and reduces energy consumption.

• Emission Control: Reliable sealing ensures minimal release of harmful gases.

• Durable Materials: Reduces replacement frequency and waste generation.

5. Operation Tips

Proper operation ensures safety, efficiency, and valve longevity:

• Correct Flow Direction: Always align the valve according to the flow arrow.

• Gradual Flow Changes: Avoid sudden pressure surges to prevent water hammer.

• Routine Inspection: Check for leaks, corrosion, and smooth disc movement.

• Cleaning: Periodically flush pipelines to remove deposits or debris.

• Actuator Care: For pneumatic or electric valves, verify air pressure or electrical connections.

Troubleshooting Table

6. Installation Guidelines

Correct installation is crucial for reliable performance and long service life:

1. Pre-Installation Check: Verify valve size, pressure rating, and medium compatibility.

2. Wafer-Style Installation: Position between flanges, ensuring proper alignment.

3. Torque Application: Use uniform torque on all bolts according to manufacturer specifications.

4. Actuated Valves: Follow electrical/pneumatic guidelines for correct connection.

5. Testing: Conduct pressure and flow tests to ensure leak-free operation before system commissioning.

7. Maintenance Recommendations

Routine maintenance ensures long-term reliability and safety:

• Visual Inspection: Weekly for standard use, daily in aggressive conditions.

• Functional Testing: Monthly under normal operation, weekly under heavy use.

• Seat & Seal Inspection: Every 6 months for standard use, every 3 months for acidic or corrosive fluids.

• Lubrication: Follow manufacturer’s instructions to maintain smooth disc movement.

8. Conclusion

The Desulfurization Butterfly Check Valve is an essential component for industrial desulfurization, chemical, and exhaust gas systems, combining corrosion resistance, reliability, and compact design. Proper installation, adherence to operational tips, and regular maintenance ensure long service life, efficient backflow prevention, and environmentally responsible operation. With compliance to international standards and robust quality assurance, this valve provides reliable performance in harsh industrial environments, making it a trusted choice for professionals worldwide.