High Performance Lug Style Triple Eccentric Butterfly Valve
| Design Standard | API 609, ASME B16.34, ASME B16.5, EN 593, ISO 5752 |
|---|---|
| Size Range | DN50 (2") – DN1200 (48") |
| Pressure Rating | Class 150 – Class 600; PN10 – PN40 |
| Body Material | WCB, LCC, CF8, CF8M, CF3, CF3M, Duplex Stainless Steel, Titanium Alloy |
| End Connection | Lug Style (Between Flange Mounting) |
Product Description
Key Features
High Performance Lug Style Triple Eccentric Butterfly Valve
The high performance lug style triple eccentric butterfly valve is engineered to solve critical challenges in industrial flow control—from space constraints and complex installation to high-pressure sealing and long-term durability. Designed for mission-critical applications, this valve combines the convenience of lug-style mounting with the superior performance of triple eccentric technology, making it the ideal choice for industrial procurement managers, process engineers, and project leaders seeking reliable, cost-effective flow isolation and control solutions.
| Parameter | Details |
|---|---|
| Product Name | High Performance Lug Style Triple Eccentric Butterfly Valve |
| Model/Series | HP-LTE Series |
| Size Range | DN50 (2″) – DN1200 (48″) |
| Pressure Rating | Class 150 – Class 600; PN10 – PN40 |
| Connection Type | Lug Style (Between Flange Mounting) |
| Design Standard | API 609, ASME B16.34, ASME B16.5, EN 593, ISO 5752 |
| Body Material | WCB, LCC, CF8, CF8M, CF3, CF3M, Duplex Stainless Steel, Titanium Alloy |
| Disc/Stem Material | 304, 316L, 410, 17-4PH, Inconel 718, Stellite Alloy |
| Seat Material | Metal-to-Metal (Stellite/Inconel), Reinforced PTFE, Graphite, Metal + Composite |
| Operation Method | Manual (Worm Gear Handwheel), Pneumatic Actuator, Electric Actuator, Hydraulic Actuator |
| Special Design | Triple Eccentric Geometry, Zero-Leakage Sealing, Fire-Safe Construction, Anti-Blowout Stem Design |
| Operating Temperature | -196°C (-320°F) to 816°C (1500°F) |
| Suitable Media | Oil, Natural Gas, Steam, Corrosive Chemicals, Water, Slurries, High-Temperature Fluids |
Core Advantages: Solving Your Key Operational Pain Points
1. Simplified Installation & Space Efficiency
The lug-style design eliminates the need for full through-bolting, allowing single-sided installation and easy removal from the pipeline—critical for tight spaces or retrofitting projects. This reduces installation time by up to 50% compared to wafer or flanged valves, minimizing labor costs and downtime.
2. Bubble-Tight Sealing Under Extreme Conditions
Leveraging triple eccentric geometry, our valve eliminates friction between the disc and seat during operation, preventing wear and ensuring true zero-leakage shutoff even at high pressures and temperatures. Unlike conventional butterfly valves, this design maintains sealing integrity across thousands of cycles, eliminating costly leaks and unplanned maintenance.
3. High Pressure & Temperature Resistance
Engineered to meet ASME B16.34 and API 609 standards, the HP-LTE series handles pressures up to Class 600 and temperatures from cryogenic (-196°C) to superheated steam (816°C). This makes it a reliable alternative to gate and globe valves in applications where soft-seat valves would fail due to thermal degradation or pressure spikes.
4. Fire-Safe & Emission Compliance
Built with fire-safe construction per API 607, the valve provides secondary sealing in the event of a fire, preventing catastrophic failure. It also meets strict fugitive emission standards (ISO 15848), making it ideal for environmentally regulated industries such as oil and gas and chemical processing.
Technical Details: Precision Engineering for Longevity
Material Science for Durability
- Body: Forged or cast carbon/stainless steel alloys offer exceptional mechanical strength and corrosion resistance, tailored to resist erosion and chemical attack in aggressive media.
- Disc & Stem: High-grade alloys (including Inconel and Stellite) resist cavitation, wear, and corrosion, while the anti-blowout stem design ensures safety under pressure.
- Seat: A layered metal-to-metal or composite seat design adapts to thermal expansion and contraction, delivering consistent sealing performance without sacrificing wear resistance.
Triple Eccentric Design Breakdown
The three offset geometry (shaft, disc, and seat cone) works in harmony to:
- Eliminate rubbing between the disc and seat during opening/closing, extending service life.
- Create a camming action that ensures full contact only at the final closed position, reducing operating torque.
- Enable bi-directional sealing without relying on differential pressure, ensuring reliability in any flow direction.
Application Scenarios: Proven Performance Across Industries
Our high performance lug style triple eccentric butterfly valve excels in mission-critical systems across:
- Oil & Gas: Pipeline transmission, refinery processing, and offshore platforms handling crude oil, natural gas, and refined products.
- Power Generation: Boiler feedwater, steam lines, and exhaust systems in coal, gas, and combined-cycle power plants.
- Chemical & Petrochemical: Corrosive chemical processing, solvent recovery, and high-temperature reaction systems.
- Water & Wastewater: High-pressure distribution networks, raw water intake, and sludge handling.
- Mining & Minerals: Slurry transport, ore processing, and tailings management systems.
- Marine & Offshore: Shipboard piping, desalination plants, and FPSO installations.
Maintenance Convenience: Minimizing Downtime
- In-Line Serviceability: The top-entry design allows quick access to the seat, disc, and stem without removing the valve from the pipeline, reducing maintenance time.
- Modular Components: Seats and seals are replaceable, enabling fast repairs without specialized tools or extended shutdowns.
- Extended Service Intervals: Frictionless operation and robust materials mean inspection cycles can align with plant turnaround schedules, lowering long-term maintenance costs.
Procurement Guidance & Trust Assurance
When selecting a high performance lug style butterfly valve, prioritize:
- Material Compatibility: Match body, disc, and seat materials to your specific media and temperature conditions to avoid premature failure.
- Actuation Sizing: Work with our engineering team to select the optimal actuator size based on your operating torque and automation requirements.
- Regulatory Compliance: Ensure the valve meets industry-specific standards (API, ASME, ISO) for your application, especially in regulated sectors like oil and gas.
Our valves are manufactured under strict ISO 9001 quality control, with full material traceability and third-party inspection (API, TÜV, DNV) available upon request. Backed by a global service network, we provide technical support from initial design through installation and ongoing maintenance, ensuring your investment delivers reliable performance for decades.