Marine Cast Steel SDNR Valve | JIS F7471 5K Certified for Marine Fuel & Lube Systems
Product Overview
Our JIS F7471 marine cast steel SDNR (Screw Down Non-Return) valve is engineered for precise flow control and reliable backflow prevention in shipboard fuel oil and lubricating oil piping systems. Manufactured to JIS B2220 flange standards, this robust valve features a durable cast steel body with full stainless steel trim, ensuring exceptional corrosion resistance and performance in demanding marine environments. Backed by a decade of export expertise, we deliver quality valves trusted by marine professionals worldwide.
Key Features & Benefits
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JIS F7471 & B2220 Compliance: Manufactured to Japanese Industrial Standards for marine valves and flange dimensions
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Full Stainless Steel Trim: Superior corrosion resistance with stainless steel seat, disc, and stem
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5K Pressure Rating: Optimal for low to medium pressure marine oil systems
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SDNR Functionality: Combines shut-off and non-return operations for enhanced system safety
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Decade of Export Excellence: 10 years of international marine valve manufacturing and supply experience
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OEM Customization: Accepts custom branding and development from client specifications
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Cast Steel Construction: Excellent durability and strength for marine service conditions
Technical Specifications
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Standard: JIS F7471
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Flange Standard: JIS B2220
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Nominal Diameter: DN50 to DN400
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Pressure Rating: 5K
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Body Material: Cast Steel
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Trim Materials: Stainless Steel (Seat, Disc, Stem)
Applications
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Marine fuel oil transfer and supply systems
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Shipboard lubricating oil pipelines
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Engine room flow control applications
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Auxiliary machinery oil systems
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Offshore platform piping networks
Quality Assurance
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Excellent Quality Control: Rigorous inspection throughout manufacturing process
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OEM Services Available: Custom branding and development from client drawings/samples
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International Standards Compliance: Meets global marine industry requirements
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Proven Export Experience: 10 years of reliable international shipping and documentation
Dimension Chart (IMPA Code Reference)
| IMPA Code | Model | L | D | C | No. | h | t | H | D2 |
|---|---|---|---|---|---|---|---|---|---|
| 751201 | F7471 10K050 | 220 | 155 | 120 | 4 | 19 | 20 | 285 | 160 |
| 751202 | F7471 10K065 | 270 | 175 | 140 | 4 | 19 | 22 | 310 | 200 |
| 751203 | F7471 10K080 | 300 | 185 | 150 | 8 | 19 | 22 | 320 | 200 |
| 751204 | F7471 10K100 | 350 | 210 | 175 | 8 | 19 | 24 | 370 | 250 |
| 751205 | F7471 10K125 | 420 | 250 | 210 | 8 | 23 | 24 | 420 | 280 |
| 751206 | F7471 10K150 | 490 | 280 | 240 | 8 | 23 | 26 | 470 | 315 |
| 751207 | F7471 10K200 | 570 | 330 | 290 | 12 | 23 | 26 | 555 | 355 |
| – | F7471 10K250 | 740 | 400 | 355 | 12 | 25 | 30 | 680 | 450 |
| – | F7471 10K300 | 840 | 445 | 400 | 16 | 25 | 32 | 770 | 500 |
The description/sizes may be different with goods, please check with us when order.
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