JIS F7358 Marine Cast Iron Check Valve – Automatic Backflow Prevention for Marine Systems
Product Overview
The JIS F7358 Marine Cast Iron Check Valve is a high-performance non-return valve designed for reliable backflow prevention in shipbuilding, vessel repair, and offshore platform applications. Featuring a robust cast iron body with optional stainless steel (SUS) or bronze internals, this 10K-rated valve ensures automatic operation and zero-leakage performance in seawater, fuel, and oil systems. With JIS B2220 flange compatibility and sizes from DN50 to DN200, it provides essential protection for marine piping systems where reverse flow prevention is critical.
Key Features & Benefits
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✅ JIS F7358 Certified – Full compliance with Japanese marine valve standards
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✅ 10K Pressure Rating – High-pressure capability for demanding marine applications
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✅ Dual Material Options – SUS stainless steel or bronze internals for corrosion resistance
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✅ Automatic Operation – Self-actuating design requires no external control
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✅ JIS B2220 Flange Compatibility – Seamless integration with marine piping systems
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✅ Wide Material Selection – Customizable materials for specific media and conditions
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✅ Zero-Leakage Design – Positive sealing prevents backflow effectively
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✅ OEM & Customization Support – Accepts custom branding and technical specifications
Material Composition
| Component | Material Options | Advantage |
|---|---|---|
| Body | Cast Iron | High strength and cost-effectiveness |
| Seat & Disc | SUS Stainless Steel/Bronze | Superior corrosion resistance and durability |
| Stem | SUS Stainless Steel/Brass | Reliable operation in marine environments |
Technical Specifications
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Nominal Diameter: DN50-DN200
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Pressure Rating: 10K
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Standards: JIS F7358, JIS B2220 Flange
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Media: Sea Water, Fuel Oil, Lubricating Oil, Marine Fluids
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Applications: Shipbuilding, Ship Repair, Offshore Platforms, Marine Vessels
Dimension Table
| IMPA Code | Model | L | D | C | Bolt Holes |
|---|---|---|---|---|---|
| 751311 | 7358 10K050 | 210 | 130 | 105 | 4×φ15 |
| 751312 | 7358 10K065 | 250 | 155 | 130 | 4×φ15 |
| 751313 | 7358 10K080 | 280 | 180 | 145 | 4×φ19 |
| 751314 | 7358 10K100 | 340 | 200 | 165 | 8×φ19 |
| 751315 | 7358 10K125 | 410 | 235 | 200 | 8×φ19 |
| 751316 | 7358 10K150 | 480 | 265 | 230 | 8×φ19 |
| – | 7358 10K200 | 570 | 320 | 280 | 8×φ23 |
Applications
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Marine engine cooling water systems
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Fuel oil transfer and supply lines
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Lubricating oil circulation systems
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Ballast and bilge water pipelines
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Offshore platform process piping
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Firefighting and seawater systems
The description/sizes may be different with goods, please check with us when order.
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