CBM 1089-81 Cast Iron Lift Check Valve | Marine Non-Return Valves for Pump Protection & Backflow Prevention
Product Overview
The CBM 1089-81 Cast Iron Lift Check Valve is a specialized non-return valve designed for critical marine applications where backflow prevention is essential. Manufactured according to Chinese Boat Standard CBM 1089-81, this lift check valve effectively prevents medium backflow, protects pumps and drive motors from reversal, and safely contains vessel media. Featuring a robust cast iron body with bronze disc, it ensures reliable performance in various marine fluid systems.
Key Features & Benefits
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✅ CBM 1089-81 Certified: Complies with Chinese marine standard specifications
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✅ Backflow Prevention: Protects pumps and motors from reverse flow damage
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✅ Cast Iron Construction: HT200 body provides durability and cost-effectiveness
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✅ Bronze Disc: ZQSn10-2 material ensures corrosion resistance and reliable sealing
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✅ Custom Material Options: Tailored to specific application requirements
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✅ Global Certification Ready: NK, DNV, BV, CCS, LR, ABS, RINA, KR approvals available
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✅ Pressure Rating: 0.5MPa for standard marine applications
Technical Specifications
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Design Standard: CBM 1089-81
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Body & Cover Material: HT200 Cast Iron
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Disc Material: ZQSn10-2 Bronze
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Nominal Pressure: 0.5MPa
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Nominal Diameter: DN50-DN150
Dimensions & Specifications
| DN (mm) | L | H | D | C | g | h | t | f | A | B |
|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 210 | 100 | 115 | 184 | 130 | 105 | 88 | 15 | 16 | 2 |
| 65 | 250 | 115 | 124 | 206 | 155 | 130 | 112 | 15 | 18 | 2 |
| 80 | 280 | 130 | 151 | 240 | 180 | 145 | 125 | 19 | 18 | 2 |
| 100 | 340 | 150 | 165 | 266 | 200 | 165 | 145 | 19 | 20 | 2 |
| 125 | 410 | 170 | 183 | 293 | 235 | 200 | 180 | 19 | 20 | 2 |
| 150 | 480 | 190 | 215 | 333 | 265 | 230 | 210 | 19 | 22 | 2 |
The description/sizes may be different with goods, please check with us when order.
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