Products

Butterfly Valve with Halar Coated Disc

Butterfly Valve with Halar Coated Disc from Zhongguan Valve is designed for demanding industrial processes where conventional metal discs may suffer from corrosion or chemical attack. The Halar (ECTFE) coating creates a durable protective barrier over the stainless steel disc, allowing the valve to handle aggressive chemicals while maintaining reliable sealing performance.

Manufactured with precision machining and strict quality inspection, this butterfly valve is widely used in chemical processing, water treatment, pharmaceutical production, electroplating, and industrial cleaning systems. It supports manual, pneumatic, and electric operation and is available in multiple international standards to meet different project requirements.


Why Choose a Halar Coated Disc?

In many corrosive applications, the valve disc is the first component exposed to aggressive media. By applying a Halar coating, the disc gains additional protection without sacrificing mechanical strength.

Key advantages include:

  • Excellent resistance to acids, alkalis and oxidizing chemicals
  • Smooth coating surface that minimizes scale and residue buildup
  • Reduced risk of corrosion on the metal substrate
  • Improved wear resistance under frequent opening and closing
  • Longer maintenance intervals compared with uncoated discs
  • Stable performance in both wet and dry operating environments
  • The coating remains firmly bonded to the disc surface, helping maintain consistent performance even during continuous industrial operation.


    Engineered for Chemical Processing

    Unlike standard butterfly valves, this model is intended for applications where corrosion protection is critical.

    Typical media include:

  • Sulfuric acid
  • Hydrochloric acid
  • Sodium hydroxide
  • Sodium hypochlorite
  • Hydrogen peroxide
  • Organic solvents
  • Electroplating solutions
  • Industrial cleaning chemicals
  • High-purity water
  • CIP cleaning liquids
  • The coated disc helps extend valve service life while reducing maintenance costs in aggressive process systems.


    Reliable Sealing Performance

    A corrosion-resistant disc alone is not enough. The sealing system also plays an important role in overall valve reliability.

    Zhongguan Valve offers different seat materials according to working conditions, including:

  • EPDM
  • FKM (Viton)
  • PTFE
  • NBR
  • Proper material selection ensures dependable shut-off performance under varying temperatures, pressures, and chemical environments.


    Flexible Configuration Options

    To satisfy different pipeline systems, the Butterfly Valve with Halar Coated Disc can be customized with various configurations.

    Available options include:

    Item Options
    Valve Type Wafer, Lug, Flange, U-Section
    Size DN40–DN1600
    Disc Material Stainless Steel with Halar (ECTFE) Coating
    Body Material Cast Iron, Ductile Iron, WCB, Stainless Steel
    Seat Material EPDM, PTFE, FKM, NBR
    Pressure Rating PN10, PN16, ANSI Class 150
    Operation Lever, Gearbox, Pneumatic, Electric
    Connection Standard DIN, ANSI, JIS, BS

    Custom specifications are available for OEM and project requirements.


    Manufacturing Advantages

    With over 19 years of experience in valve manufacturing, Zhongguan Valve combines its own butterfly valve production with an integrated industrial valve supply chain.

    Our manufacturing strengths include:

  • Complete butterfly valve production lines
  • Precision CNC machining
  • Professional valve seat installation
  • Pressure testing before shipment
  • Traceable quality inspection process
  • Stable supply for domestic and overseas projects
  • OEM and private label support
  • Every valve is assembled and inspected before delivery to ensure dependable field performance.


    Typical Applications

    The Butterfly Valve with Halar Coated Disc is commonly installed in:

  • Chemical plants
  • Water treatment facilities
  • Pharmaceutical production lines
  • Electroplating systems
  • Chlor-alkali processing
  • Food and beverage CIP systems
  • Industrial wastewater treatment
  • Pulp and paper plants
  • Mining process pipelines

  • Product Features

  • Halar (ECTFE) coated stainless steel disc
  • Outstanding chemical corrosion resistance
  • Low operating torque
  • Bubble-tight sealing performance
  • Smooth internal flow path
  • Multiple actuator options available
  • Wide range of valve sizes
  • Long service life
  • Low maintenance requirements
  • Suitable for automated control systems

  • Why Zhongguan Valve?

    As a professional butterfly valve manufacturer in China, Zhongguan Valve operates dedicated production facilities with experienced engineering and quality control teams.

    Customers choose Zhongguan Valve because we provide:

  • Consistent manufacturing quality
  • Competitive factory pricing
  • Flexible customization
  • Fast production scheduling
  • Complete valve testing
  • International export experience
  • Technical support before and after sales
  • Whether you require standard butterfly valves or customized anti-corrosion solutions, our team can help match the right configuration for your project.


    Frequently Asked Questions

    Is the Halar coating suitable for highly corrosive chemicals?

    Yes. Halar (ECTFE) coating provides excellent resistance against many strong acids, alkalis, oxidizing agents, and industrial chemicals, making it suitable for demanding process environments.

    Can the valve be supplied with electric or pneumatic actuators?

    Yes. The valve is compatible with manual handles, gear operators, pneumatic actuators, and electric actuators, depending on your automation requirements.

    What valve sizes are available?

    Standard production ranges from DN40 to DN1600. Larger sizes and customized specifications can be discussed with our engineering team.

    Can Zhongguan Valve provide OEM services?

    Yes. We support OEM manufacturing, customized markings, special materials, packaging, and project-based valve solutions for global customers.

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