Flange Type Butterfly Valve Nylon Covered

Performance Features

• Excellent Sealing Performance: The valve has a tight and reliable seal, which can effectively prevent fluid leakage. The nylon covering on the valve seat provides good sealing performance, making it suitable for low-pressure applications.
• Low Fluid Resistance: The valve has a small flow resistance, and its resistance coefficient is equal to that of the pipe section of the same length. This allows for efficient fluid flow with minimal pressure drop.
• Simple Structure and Easy Maintenance: The valve has a simple structure with fewer components than other valve types, which reduces maintenance requirements and makes repairs easier. The nylon covering also helps to protect the valve from corrosion and wear.
• Fast Opening and Closing: The valve can be fully opened or closed with a 90-degree rotation of the disc, enhancing process efficiency and allowing for rapid response in controlling fluid flow.

Advantages

• Corrosion Resistance: The nylon covering provides excellent corrosion resistance, making the valve suitable for use in harsh environments where corrosive fluids are present.
• Low Friction: The nylon covering reduces friction between the valve disc and the seat, ensuring smooth operation and extending the valve's lifespan.
• Cost-Effective: The valve is generally more economical than other types of valves, especially when considering its simple design and lower maintenance costs.
• Versatile Applications: The valve can be used in a wide range of applications, including water treatment, HVAC systems, and chemical processing.

Application Scenarios

• Water Treatment: The valve is commonly used in water treatment plants for controlling the flow of water and chemicals.
• HVAC Systems: It is used in HVAC systems for regulating air and water flow.
• Chemical Processing: The valve is suitable for use in chemical processing industries where corrosive fluids are present.
• Oil and Gas: It can be used in oil and gas applications for controlling the flow of gases and liquids.

Technical Specifications

• Size Range: The valve is available in sizes ranging from DN50 to DN600.
• Pressure Rating: The valve can withstand a pressure rating of up to 16 bar.
• Material: The valve body is usually made of cast iron or ductile iron, while the disc is made of stainless steel. The seat is covered with nylon.
• End Connection: The valve has flanged ends, which provide a secure and leak-proof connection to the pipeline.
• Design Standard: The valve is designed according to standards such as GB/T12237 and API609.
• Inspection Standard: The valve is inspected according to standards such as GB/T13927 and API598.
• Application Medium: Water, air, gas, and non-corrosive chemicals.
• Application Temperature: -20℃ to 150℃.

Maintenance

• Regular Inspection: Regularly inspect the valve for any signs of wear or damage, and replace any worn or damaged parts in a timely manner.
• Lubrication: Lubricate the valve stem and other moving parts regularly to ensure smooth operation.
• Cleaning: Clean the valve cavity and other parts regularly to remove any dirt or debris.
• Sealing Surface Maintenance: Check the sealing surface of the valve regularly and repair or replace it if necessary.