Lug Style Butterfly Valve
Product Overview:
The Lug Style Butterfly Valve is designed for reliable flow control in various applications. Its lug-style construction allows secure installation between flanges with bolts. This makes it a versatile choice for many industrial and commercial systems.
Design Standards:
– API 609: Defines design, materials, and testing requirements for butterfly valves. This ensures consistent performance and reliability.
– ASME B16.34: Specifies pressure-temperature ratings, materials, and design criteria for valves in pressure-containing applications.
– ISO 5752: Provides dimensions and performance standards for butterfly valves. This ensures compatibility with international piping systems.
Connection Method: Lug Style
– Advantages:
– Secure Installation: The lug-style design allows the valve to be bolted directly to the flanges. This provides a stable and secure connection.
– No Need for Additional Gaskets: The full lug design eliminates the need for extra gaskets. This simplifies installation.
– Ease of Maintenance: The valve can be easily removed and replaced without disturbing the pipeline.
– Versatility: Suitable for various flange types and pressures.
– Disadvantages:
– Higher Cost: Lug-style valves can be more expensive compared to wafer-style valves.
– Space Requirements: The full lug design may require more space. This can be a limitation in tight installations.
– Weight: Lug-style valves can be heavier, which may affect installation and handling.
Sealing Options:
– Soft Seal:
– Materials: EPDM (Ethylene Propylene Diene Monomer), PTFE (Polytetrafluoroethylene).
– Applications: Suitable for water, mild chemicals, and lower pressure applications.
– Advantages: Provides a tight seal with minimal leakage. Good for standard conditions.
– Hard Seal:
– Materials: Metal (e.g., stainless steel), carbide.
– Applications: Suitable for high pressure, high temperature, and aggressive media.
– Advantages: Offers robust sealing for harsh conditions. Provides a longer lifespan under extreme conditions.
Applications:
– Water Distribution: Ideal for use in water supply and treatment systems. Provides reliable isolation and flow control.
– Industrial Processes: Suitable for various industrial processes that require durable and efficient flow control.
– HVAC Systems: Used in heating, ventilation, and air conditioning systems for precise flow regulation.
Usage Conditions:
– Operating Pressure: Designed to handle pressures up to 150 psi (10 bar). Pressure ratings vary based on material and design.
– Temperature Range: Operates within a temperature range from -10°C to 120°C (14°F to 248°F). Temperature limits depend on seat material and application specifics.
Additional Features:
– Corrosion Resistance: Available in materials that resist corrosion, enhancing durability and reducing maintenance.
– Ease of Installation: The lug design simplifies the installation process and reduces the need for additional components.
Summary:
The Lug Style Butterfly Valve provides reliable performance and versatility. It conforms to API 609, ASME B16.34, and ISO 5752 standards. The valve features a lug-style connection for secure installation. It is available with both soft and hard seal options. Suitable for a wide range of applications, including water distribution, industrial processes, and HVAC systems.
