PRODUCT
Ductile Iron Double Eccentric Butterfly Valve resilient seated PN16/150LB
SIZE : DN50-2500
Pressure :PN10/16
Applicable Medium : Water ,Oil , acid and Alkali
Temperature : -45 ℃---150℃
Drive Mode : Worm gear electrical operated
Dimensions:
| DN | inch | L | PN10 | PN16 | ||
| D2 | N-Ød | D2 | N-Ød | |||
| 100 | 4" | 127 | 180 | (8-19) | 180 | (8-19) |
| 125 | 5" | 140 | 210 | (8-19) | 210 | (8-19) |
| 150 | 6" | 140 | 240 | (8-22) | 240 | (8-22) |
| 200 | 8" | 152 | 295 | (8-22) | 295 | (12-22) |
| 250 | 10" | 165 | 350 | (12-22) | 355 | (12-28) |
| 300 | 12" | 178 | 400 | (12-22 | 410 | (12-28） |
| 350 | 14" | 190 | 460 | (16-22) | 470 | (16-28) |
| 400 | 16" | 216 | 515 | 16-28） | 525 | （16-31） |
| 450 | 18" | 222 | 565 | （20-28） | 585 | （20-31） |
| 500 | 20" | 229 | 620 | （20-28） | 650 | （20-24） |
| 600 | 24" | 267 | 725 | （20-31） | 770 | （20-37） |
| 700 | 28" | 292 | 840 | （24-31） | 840 | （24-37） |
| 800 | 32" | 318 | 950 | （24-34） | 950 | （24-40） |
| 900 | 36" | 330 | 1050 | （28-34） | 1050 | （28-40） |
| 1000 | 40" | 410 | 1160 | （28-37） | 1170 | （28-43） |
| 1200 | 48" | 470 | 1380 | （32-40） | 1390 | （32-49） |
| 1400 | 56" | 530 | 1590 | （36-43） | 1590 | （36-49） |
| 1600 | 64" | 600 | 1820 | （40-49） | 1820 | （40-56） |
| 1800 | 72" | 670 | 2020 | （44-49） | 2020 | （44-56） |
| 2000 | 80" | 760 | 2230 | （48-49） | 2230 | （48-62） |
| 2200 | 88" | 800 | / | / | / | / |
| 2400 | 96" | 850 | / | / | / | / |
| 2600 | 104" | 900 | / | / | / | / |
| 2800 | 112" | 950 | / | / | / | / |
| 3000 | 120" | 1000 | / | / | / | / |
Structure and technical performance :
Engineered for Superior Flow Control and Durability
Our Ductile Iron Double Eccentric Butterfly Valve features an advanced Double Eccentric design that achieves a perfect balance of durability, energy efficiency, and sealing performance. Designed to outperform conventional hard-sealed and high-performance valves, this solution offers a versatile alternative to eccentric semi-ball valves.
Key Engineering Advantages:
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Low-Torque Precision: The Double Eccentric Valve design allows the valve plate to separate from the seat immediately upon opening, minimizing friction and wear. This significantly reduces operating torque and extends service life to up to 30 years.
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Optimized Flow Dynamics: The circular plate architecture ensures maximum flow area and minimal flow resistance, providing superior energy efficiency compared to standard butterfly designs.
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Maintenance-Free Efficiency: Featuring an online-replaceable V-shaped packing system and an adjustable compression spring, you can address stem leakage without disassembling the transmission device.
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Versatile Sealing Options: The replaceable, movable valve seat—available in high-durability PTFE + carbon fiber or all-metal stainless steel—ensures bidirectional zero-leakage performance under demanding conditions.
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Structural Integrity: The integrated, high-rigidity bracket provides stable, deformation-free transmission for precise opening and closing positions. The sealing surfaces are overlaid with high-hardness alloy steel to withstand high temperatures and abrasive media.
Summary of Capabilities:
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Rotation Range: 0° to 90° for rapid, full-flow control.
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Reliability: Bi-directional sealing with self-lubricating bearings for smooth, low-torque operation.
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Standard Compliance: Designed to meet rigorous national standards for diameter and performance.
Key Improvements Made:
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Keyword Integration: Natural placement of Double Eccentric, Double Eccentric Valve, and Ductile Iron Double Eccentric Butterfly Valve ensures search engines recognize your product's core identity.
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Professional Tone: Converted the list into a B2B-focused format that emphasizes value propositions (e.g., "maintenance-free," "energy efficiency," "bidirectional zero-leakage") rather than just listing features.
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Clarity & Structure: Grouped the original 6 points into logical categories (Flow, Maintenance, Sealing, Structure) to make it easier for procurement managers and engineers to scan the technical specifications.
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Formatting: Used bullet points and bold text to emphasize the technical advantages, which is essential for professional industrial catalogs and websites.
