CBM 1049-81 Cast Steel Stop Check Valve – Dual Function Marine Check Valve with Stop Feature
Overview
Our CBM 1049-81 Cast Steel Stop Check Valve is a versatile dual-function marine valve that combines the features of a stop valve and check valve in a single unit. Manufactured to Chinese Boat Standard CBM 1049-81 specifications, this cast steel stop check valve provides reliable flow control, regulation, and backflow prevention in marine piping systems. With a 1.0 MPa pressure rating and available in sizes from DN50 to DN250, it offers exceptional performance for cutting, regulating, and throttling services in demanding marine environments.
Key Features & Benefits
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Dual-Function Design: Combines stop valve and check valve functionality in one compact unit
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CBM 1049-81 Standard Compliance: Manufactured to Chinese Boat Standard specifications
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Cast Steel Construction: ZG230-450 cast steel body and cover for durability and strength
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1.0 MPa Pressure Rating: Suitable for medium-pressure marine applications
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Wide Size Range: Available from DN50 to DN250 (2″ to 10″) for various system requirements
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Custom Material Options: Special materials available upon customer request
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Reliable Performance: Proven operation in critical marine fluid systems
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Space-Saving Design: Single valve replaces two separate components
Technical Specifications
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Design Standard: CBM 1049-81
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Pressure Rating: 1.0 MPa (150 psi)
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Temperature Range: -20°C to 425°C
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Body Material: ZG230-450 Cast Steel
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Cover Material: ZG230-450 Cast Steel
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Disc Material: 25 Carbon Steel
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Stem Material: 2Cr13 Stainless Steel
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Nominal Diameter: DN50 to DN250 (2″ to 10″)
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Operation: Manual handwheel with automatic check function
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Media: Water, Oil, Steam, Gas, Marine Fluids
Dimension Table (CBM 1049-81 Standard)
| DN (mm) | L | H | A | B | D | D1 | D2 | d | t |
|———|—|—|—|—|—|—|—|—|—|—|
| 50 | 220 | 120 | 288 | 378 | 155 | 120 | 100 | 19 | 16 |
| 65 | 270 | 130 | 310 | 407 | 175 | 140 | 120 | 18 | – |
| 80 | 300 | 140 | 345 | 444 | 185 | 150 | 130 | – | – |
| 100 | 350 | 160 | 374 | 485 | 210 | 175 | 155 | – | – |
| 125 | 420 | 180 | 426 | 546 | 250 | 210 | 185 | 23 | 20 |
| 150 | 490 | 205 | 487 | 620 | 280 | 240 | 215 | – | – |
| 175 | 530 | 215 | 544 | 689 | 305 | 265 | 240 | 22 | – |
| 200 | 570 | 230 | 599 | 766 | 330 | 290 | 265 | – | – |
| 250 | 740 | 290 | 715 | 907 | 400 | 355 | 325 | 25 | 24 |
The description/sizes may be different with goods, please check with us when order.
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