Marine DIN Double Check Valve | Backflow Prevention Valves for Ship Piping Systems
Product Overview
The Marine DIN Double Check Valve is an essential safety component designed for critical marine applications where backflow prevention is paramount. Engineered to DIN standards, this dual-check valve system features two independently acting check valves in a single unit, ensuring absolute protection against reverse flow in shipboard piping systems. Constructed from corrosion-resistant materials, these valves are ideal for water supply, fuel transfer, ballast, and firefighting systems where fluid integrity is crucial.
Key Features & Benefits
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✅ Dual Check Valve Design: Two independent check valves provide redundant backflow prevention
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✅ DIN Standard Compliance: Meets international dimensional and performance standards
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✅ Corrosion-Resistant Materials: Suitable for seawater and marine environments
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✅ Compact & Easy Installation: Space-saving design with simple maintenance access
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✅ Multiple Material Options: Standard and custom materials available
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✅ IACS Certification Ready: ABS, BV, CCS, LR, RINA approvals available
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✅ Wide Size Range: DN50 to DN500 for various piping requirements
Technical Specifications
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Design Standard: DIN
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Pressure Rating: PN10
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Nominal Diameter: DN50-DN500
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Body Material: Cast Iron (standard); Cast Steel, SS304, SS316L available
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Disc Material: Bronze
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Spring Material: Stainless Steel
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Seat Ring Material: NBR Viton
Applications
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Marine water supply and distribution systems
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Fuel transfer and bunkering systems
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Ballast water management systems
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Firefighting and emergency water systems
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Offshore platform piping networks
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Shipboard hydraulic systems
Dimensions & Specifications
| CODE | DN | Size (mm) | Weight (Kgs) | L | D |
|---|---|---|---|---|---|
| 75 60 71 | 50 | 43 | 2.7 | 105 | |
| 75 60 72 | 65 | 46 | 4.5 | 124 | |
| 75 60 73 | 80 | 64 | 5.9 | 136 | |
| 75 60 74 | 100 | 64 | 7.7 | 174 | |
| 75 60 75 | 125 | 70 | 12 | 196 | |
| 75 60 76 | 150 | 76 | 16 | 222 | |
| 75 60 77 | 200 | 89 | 32 | 279 | |
| 75 60 78 | 250 | 114 | 48 | 340 | |
| 75 60 79 | 300 | 114 | 78 | 410 | |
| 75 60 80 | 350 | 127 | 91 | 451 | |
| 75 60 81 | 400 | 140 | 125 | 514 | |
| 75 60 82 | 450 | 152 | 143 | 549 | |
| 75 60 83 | 500 | 152 | 197 | 606 |
The description/sizes may be different with goods, please check with us when order.
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