JIS F7351 Marine Bronze SDNR Valve | JIS B2220 5K Bronze Screw Down Non-Return Valve for Marine Piping Systems
Product Overview
The JIS F7351 Marine Bronze SDNR (Screw Down Non-Return) Valve is a precision-engineered flow control solution specifically designed for marine fuel oil and lubricating oil piping systems. Manufactured from premium bronze with brass components and compliant with JIS B2220 flange standards, this valve ensures reliable shut-off and non-return functionality while preventing backflow in demanding shipboard environments. Its corrosion-resistant construction and 5K pressure rating make it ideal for various marine and offshore applications.
Key Features & Benefits
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JIS F7351 Certified: Compliant with Japanese Industrial Standards for marine valve applications
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JIS B2220 Flange Compatibility: Standardized flange dimensions ensure seamless integration with marine piping systems
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Premium Bronze Construction: Excellent corrosion resistance for seawater, fuel, and lubricating oil applications
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5K Pressure Rating: Ideal for marine fuel and lube oil transfer systems
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Screw Down Non-Return Function: Provides positive shut-off while preventing backflow in critical piping
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Marine-Environment Materials: Specifically designed for harsh marine and offshore conditions
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OEM Services Available: Custom manufacturing, private labeling, and sample development supported
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Responsive Support: Expert technical assistance with 24-hour response time
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Two Bonnet Types: Screwed bonnet (15A-40A) and bolted bonnet (50A-65A) for optimal performance
Material Specification
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Body: Bronze
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Disc: Bronze
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Stem: Brass
Technical Specifications
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Standard: JIS F7351
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Flange Standard: JIS B2220
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Nominal Diameter: DN15-DN65
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Pressure Rating: 5K
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Type: Screw Down Non-Return Valve (SDNR)
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Operation: Manual
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Bonnet Types: Screwed (15A-40A), Bolted (50A-65A)
Main Dimensions (mm)
| IMPA Code | Model | L | D | C | No. | h | t | H | D2 |
|---|---|---|---|---|---|---|---|---|---|
| 751051 | 7351 5K15 | 100 | 80 | 60 | 4 | 12 | 9 | 130 | 80 |
| 751052 | 7351 5K20 | 110 | 85 | 65 | 4 | 12 | 10 | 140 | 100 |
| 751053 | 7351 5K25 | 120 | 95 | 75 | 4 | 12 | 10 | 160 | 125 |
| 751054 | 7351 5K32 | 140 | 115 | 90 | 4 | 15 | 12 | 170 | 125 |
| 751055 | 7351 5K40 | 160 | 120 | 95 | 4 | 15 | 12 | 190 | 140 |
| – | 7351 5K50 | 210 | 130 | 105 | 4 | 15 | 14 | 235 | 140 |
| – | 7351 5K65 | 250 | 155 | 130 | 4 | 15 | 14 | 260 | 160 |
The description/sizes may be different with goods, please check with us when order.
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