JIS F7480 Marine Lug Type Butterfly Valve – Reliable Flow Control for Marine Applications
Product Overview
The JIS F7480 Marine Lug Type Butterfly Valve is a versatile and efficient flow control solution designed for various marine and offshore applications. Featuring a robust ductile iron or cast iron body with stainless steel (SUS) or bronze disc components, this valve is available in both 5K and 10K pressure ratings to suit different system requirements. With sizes ranging from DN50 to DN400, it offers reliable on-off control for seawater, ballast, fuel, and other marine media while ensuring easy installation and maintenance.
Key Features & Benefits
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✅ Lug Type Design – Allows easy installation and removal without disturbing entire pipelines
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✅ Dual Pressure Ratings – Available in 5K and 10K versions for flexible application
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✅ Corrosion-Resistant Materials – SUS/bronze disc and stem with rubber seating for durability
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✅ Bubble-Tight Sealing – Rubber seat ensures zero leakage in both directions
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✅ Compact & Lightweight – Space-saving design ideal for shipboard installations
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✅ Quick Operation – 90-degree operation for fast opening and closing
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✅ JIS F7480 Compliance – Meets Japanese industrial standards for marine valves
Material Composition
| Component | Material Options | Advantage |
|---|---|---|
| Body | Ductile Iron/Cast Iron | High strength and impact resistance |
| Seat | Rubber | Excellent sealing and flexibility |
| Disc | SUS Stainless Steel/Bronze | Corrosion resistance and durability |
| Stem | SUS Stainless Steel | High tensile strength and corrosion resistance |
Technical Specifications
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Nominal Diameter: DN50-DN400
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Pressure Ratings: 5K / 10K
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Standard: JIS F7480
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Operation: Manual, Gear, or Actuated
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Media: Sea Water, Ballast Water, Fuel, Air, General Marine Fluids
Dimension Table (5K & 10K)
5K Pressure Rating
| Size | D | D1 | L | n-Th |
|---|---|---|---|---|
| 50A | 94 | 105 | 43 | 4-M12 |
| 65A | 117 | 130 | 46 | 4-M12 |
| 80A | 127 | 145 | 46 | 4-M16 |
| 100A | 152 | 165 | 52 | 8-M16 |
| 125A | 183 | 200 | 56 | 8-M16 |
| 150A | 213 | 230 | 56 | 8-M20 |
| 200A | 263 | 280 | 60 | 8-M20 |
| 250A | 327 | 345 | 68 | 12-M20 |
| 300A | 370 | 390 | 78 | 12-M20 |
| 350A | 414 | 435 | 78 | 12-M22 |
| 400A | 474 | 495 | 102 | 16-M22 |
10K Pressure Rating
| Size | D | D1 | L | n-Th |
|---|---|---|---|---|
| 50A | 94 | 120 | 43 | 4-M16 |
| 65A | 117 | 140 | 46 | 4-M16 |
| 80A | 127 | 150 | 46 | 8-M16 |
| 100A | 152 | 175 | 52 | 8-M16 |
| 125A | 183 | 210 | 56 | 8-M16 |
| 150A | 213 | 240 | 56 | 8-M20 |
| 200A | 263 | 290 | 60 | 12-M20 |
| 250A | 327 | 355 | 68 | 12-M22 |
| 300A | 370 | 400 | 78 | 16-M22 |
| 350A | 414 | 445 | 78 | 16-M22 |
| 400A | 474 | 510 | 102 | 16-M24 |
The description/sizes may be different with goods, please check with us when order.
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