Marine DIN Cast Steel Check Valve | PN40 High-Pressure Non-Return Valve for Marine & Offshore Applications
Product Overview
Our Marine DIN Cast Steel Check Valve is a high-performance non-return solution specifically engineered for demanding marine and offshore environments. Manufactured from robust cast steel with stainless steel internal components and graphite sealing, this valve ensures reliable backflow prevention in seawater, steam, thermal oil, ammonia, gas, and compressed air systems. Compliant with DIN standards and rated for PN40 pressure, it delivers exceptional durability and safety for shipbuilding, vessel repair, and offshore platform applications.
Key Features & Benefits
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PN40 High Pressure Rating: Suitable for demanding marine and industrial applications
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DIN Standard Compliance: Manufactured to international DIN specifications for quality assurance
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Multi-Medium Compatibility: Ideal for cold/hot water, steam, air, gases, ammonia, and thermal oil
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Premium Material Construction: Cast steel body with stainless steel seat and spring for corrosion resistance
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Graphite Bonnet Gasket: Ensures leak-proof operation in high-temperature and high-pressure conditions
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Wide Size Range: DN15 to DN500 sizes accommodate various pipeline requirements
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Material Customization: Special materials available to meet specific application needs
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Spring-Assisted Operation: Ensures quick closing and reliable backflow prevention
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Maintenance-Free Design: Long service life with minimal maintenance requirements
Material Specification
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Body: Cast Steel
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Bonnet: Cast Steel
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Seat: Stainless Steel
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Spring: Stainless Steel
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Bonnet Gasket: Graphite
Technical Specifications
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Standard: DIN Marine Standards
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Nominal Diameter: DN15-DN500
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Pressure Rating: PN40
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Media: Water, steam, air, gases, ammonia, thermal oil
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Applications: Shipbuilding, ship repair, offshore platforms
Main Dimensions & Weights
| CODE | DN | D (mm) | L (mm) | H (mm) | Weight (Kgs) |
|---|---|---|---|---|---|
| 75 59 21 | 15 | 95 | 130 | 70 | 3.8 |
| 22 | 20 | 105 | 150 | 70 | 4.9 |
| 23 | 25 | 115 | 160 | 80 | 5.9 |
| 24 | 32 | 140 | 180 | 80 | 7.1 |
| 25 | 40 | 150 | 200 | 85 | 10.4 |
| 75 59 26 | 50 | 165 | 230 | 95 | 12.3 |
| 27 | 65 | 185 | 290 | 110 | 22.7 |
| 28 | 80 | 200 | 310 | 130 | 28.5 |
| 29 | 100 | 235 | 350 | 155 | 40.0 |
| 30 | 125 | 270 | 400 | 165 | 64.0 |
| 75 59 31 | 150 | 300 | 480 | 215 | 90.0 |
| 33 | 200 | 375 | 600 | 285 | 170.0 |
| 90 | 250 | 450 | 730 | 325 | 240.0 |
| 91 | 300 | 515 | 850 | 365 | 374.0 |
| 92 | 350 | 580 | 980 | 420 | 508.0 |
| 75 59 93 | 400 | 660 | 1100 | 430 | 786.0 |
| 94 | 500 | 755 | 1350 | 530 | 1044.0 |
The description/sizes may be different with goods, please check with us when order.
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