The Lug Type Butterfly Valve is a high-performance industrial flow control solution engineered for precision, durability, and versatility. Designed for seamless integration into diverse piping systems, this valve provides a reliable sealing mechanism that ensures optimal flow regulation while maintaining a compact footprint. Its robust construction makes it ideal for demanding environments in the general equipment manufacturing sector.
Featuring a wide array of material options from ductile iron to stainless steel, our Lug Type Butterfly Valves are customizable to meet specific chemical compatibility and temperature requirements. Whether utilized in water treatment, chemical processing, or HVAC systems, these valves deliver exceptional operational stability and long-term reliability, reducing maintenance downtime and enhancing system efficiency.
Detailed Parameters
| Body Materials | Cast Iron (ASTM A126), Ductile Iron (ASTM A536), Stainless Steel (CF8/CF8M), Carbon Steel (WCB) | Disc Materials | Ductile Iron (Nickel Plated), Stainless Steel (CF8/CF8M), Al-Bronze (ASTM B148) |
|---|---|---|---|
| Stem Options | Zinc Plated Steel, Stainless Steel (Type 316, 410, 420, 416) | Seat Materials | NBR, EPDM, Neoprene, PTFE, Viton |
| Size Range | 40mm (1½") to 300mm (12") | Standard Compliance | ANSI 125/150, PN10, PN16, JIS 10K |
| O-Ring Options | NBR, EPDM, Neoprene, Viton | Bushing Materials | PTFE, Nylon, Lubricated Bronze |
| Temp Range (PTFE) | -50°C to 200°C (-58°F to 392°F) | Temp Range (EPDM) | -40°C to 120°C (-40°F to 248°F) |
Key Advantages
Premium Metallurgy
Available in stainless steel and ductile iron to ensure maximum corrosion resistance in harsh industrial environments.
Extended Service Life
High-grade seat materials like Viton and PTFE significantly reduce wear and tear, extending the valve's lifecycle.
Precision Sealing
Engineered for zero-leakage performance, ensuring tight shut-off and minimal pressure drops across the system.
Flexible Installation
Lug type design allows for dead-end service, providing superior flexibility during piping installation and maintenance.
Custom Compatibility
Material selection can be tailored based on medium and temperature to optimize performance for specific applications.
Global Standards
Fully compliant with ANSI, PN, and JIS standards, ensuring compatibility with international piping infrastructure.
Product Gallery
Management Platforms
Material Optimization
We help you select the perfect material (NBR, EPDM, PTFE) based on your specific medium and temperature.
Precision Engineering
Advanced machining ensures tight tolerances for all dimensions from 1½" to 12" sizes.
Quality Assurance
Rigorous pressure and leak testing conducted on every unit to ensure operational safety.
Standard Alignment
Strict adherence to ASTM and DIN standards for seamless global interchangeability.
Supply Chain Efficiency
Optimized logistics for rapid delivery of critical valve components to minimize project delays.
Technical Support
Expert consultation for special media and extreme temperature environments to ensure valve longevity.
Investment Return Comparison
| Performance Metric | Standard Valves | Our Lug Butterfly Valves |
|---|---|---|
| Installation Speed | Moderate | Fast (Lug Design) |
| Maintenance Cycle | Frequent | Extended (High-Grade Seals) |
| Leakage Rate | Standard | Ultra-Low / Zero Leakage |
| Corrosion Life | Short-Medium | Long-Term (SS/Ductile Iron) |
| Total Cost of Ownership | High (Replacement cost) | Low (Durability focus) |
Frequently Asked Questions
Lug valves have threaded inserts (lugs) that allow them to be bolted directly to the pipe flange, enabling them to be used for dead-end service, unlike wafer valves which must be sandwiched between two flanges.
For high-temperature environments, PTFE is the best choice as it can withstand temperatures up to 200°C (-58°F to 392°F), whereas EPDM or NBR are suited for lower ranges.
Yes, by selecting Stainless Steel (ASTM A351 CF8/CF8M) for the body and disc, and PTFE for the seat, the valve becomes highly resistant to most corrosive media.
Our valves are manufactured to meet ANSI 125/150, PN10, PN16, and JIS 10K standards, ensuring they fit global piping specifications.
While seat materials can withstand lower temperatures, elastomers may harden, increasing torque. We recommend consulting our team for specific cryogenic application requirements.
Refer to our Dimensions List which provides precise measurements (A, B, C, E, L) for sizes ranging from 1½" to 12" to ensure a perfect fit with your flanges.
