CBM 1070-81 Bronze SDNR Valve – Marine-Grade Screw Down Non-Return Valve for Corrosion-Prone Applications
Product Overview
The CBM 1070-81 Bronze SDNR (Screw Down Non-Return) Valve is specifically engineered for marine applications where corrosion resistance is critical. This heavy-duty bronze valve combines the positive shutoff capability of a screw-down mechanism with automatic backflow prevention, making it ideal for shipbuilding industry applications vulnerable to internal and external corrosion. With a 0.5MPa pressure rating and sizes from DN15 to DN65, it provides reliable performance in demanding marine environments.
Key Features & Benefits
✔ Superior Corrosion Resistance
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Full Bronze Construction: Excellent resistance to both internal and external corrosion
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Marine-Grade Materials: Specifically formulated for saltwater environments
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Custom Material Options: Special alloys available upon request for specific applications
✔ Dual-Function Design
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Positive Shutoff: Manual screw-down operation for absolute flow control
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Non-Return Function: Automatic backflow prevention for system safety
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Heavy Pattern Construction: Robust design for shipbuilding industry requirements
✔ Technical Specifications
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Pressure Rating: 0.5MPa for various marine applications
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Size Range: DN15 to DN65 comprehensive coverage
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Certification: Full IACS classification society approvals
✔ Quality Assurance
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IACS Certification: DNV, KR, BV, CCS, LR, NK, ABS, RINA approved
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Custom Manufacturing: Special materials and configurations available
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Heavy-Duty Construction: Designed for long service life in marine environments
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | Bronze (Custom materials available) |
| Nominal Pressure | 0.5MPa |
| Nominal Diameter | DN15-DN65 |
| Certification | DNV, KR, BV, CCS, LR, NK, ABS, RINA |
| Application | Corrosion-prone marine environments |
Detailed Dimensions & Specifications
| DN (mm) | L (mm) | H (mm) | D (mm) | C (mm) | g (mm) | h (mm) | t (mm) | A (mm) | B (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 100 | 55 | 100 | 146 | 80 | 60 | 48 | 12 | 9 |
| 20 | 110 | 60 | 112 | 160 | 85 | 65 | 52 | 10 | |
| 25 | 120 | 65 | 125 | 175 | 95 | 75 | 62 | ||
| 32 | 140 | 80 | 136 | 199 | 115 | 90 | 72 | 15 | 12 |
| 40 | 160 | 85 | 165 | 225 | 120 | 95 | 78 | ||
| 50 | 210 | 100 | 288 | 358 | 130 | 105 | 88 | 14 | |
| 65 | 250 | 115 | 310 | 392 | 155 | 130 | 112 |
The description/sizes may be different with goods, please check with us when order.
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