Lug Type Butterfly Valve

In the rapidly evolving industrial fluid control industry, efficient, low-maintenance and high-reliability valve products have become core demands of engineering construction. As a mainstream high-performance flow control component, the lug type butterfly valve has gained widespread recognition in global water treatment, marine engineering, petrochemical, HVAC and municipal pipeline fields in 2026 by virtue of its unique lug structure design, independent installation performance and excellent dead-end sealing capability, becoming a key equipment to optimize industrial pipeline operation efficiency.

Different from traditional wafer butterfly valves, the most prominent feature of the lug type butterfly valve is its integrated lug structure with threaded bolt holes on both sides of the valve body. This structural innovation enables the valve to be independently fixed on pipeline flanges without relying on the clamping force of double-sided flanges. It can realize single-flange installation and dead-end pipeline sealing, solving the long-standing industry pain point that wafer valves must shut down the entire pipeline for disassembly and maintenance. According to industrial engineering data, the application of lug type butterfly valves can reduce pipeline maintenance downtime by more than 60% and cut the hourly production loss cost of medium-sized processing plants by thousands of dollars, greatly improving the operational economy of industrial systems.

In terms of product performance, the upgraded lug type butterfly valve in the current market achieves a perfect balance of pressure resistance, temperature resistance and sealing stability. The optimized structural design enables it to adapt to a working pressure of up to 6.3 MPa, supporting bidirectional medium flow control, and is compatible with various complex working conditions such as thin-walled pipelines and plastic pipelines that are not suitable for traditional valve installation. 

Industry application feedback shows that lug type butterfly valves have outstanding adaptability in key industrial scenarios. In municipal water supply and sewage treatment projects, its reliable dead-end sealing performance effectively avoids medium leakage during pipeline branch maintenance, ensuring continuous operation of the main water supply pipeline; in marine and offshore cooling systems, the corrosion-resistant structure adapts to humid and high-salt working environments, reducing equipment failure rates; in petrochemical and metallurgical industries, its quick disassembly and assembly feature greatly improves the efficiency of pipeline overhaul and equipment replacement, meeting the high-frequency maintenance needs of industrial production lines.

Below photos are sample lug type butterfly valves in pneumatic and manual operation for reference.