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Help CenterCB304-1977 Standard Marine Flange Cast Iron Angle Safety Valve
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As a dedicated manufacturer with a strong commitment to maritime safety and reliability, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our CB304-1977 Standard Marine Flange Cast Iron Angle Safety Valve. Engineered to meet the rigorous demands of marine environments, this valve is a critical safeguard for pressure systems on vessels, ensuring operational integrity and crew safety. Our focus on precision manufacturing, backed by ISO9001 certified quality management systems, guarantees a product that delivers consistent performance and durability where it matters most. We understand the challenges faced by shipbuilders, repair yards, and fleet operators, which is why our valve is designed to offer a dependable solution for pressure relief, combining robust construction with adherence to established marine standards.
This angle safety valve is specifically constructed for marine applications, featuring a durable cast iron body known for its strength and corrosion resistance in harsh, salty conditions. The angle design allows for efficient installation in piping systems where space is constrained or where a change in flow direction is required, making it a versatile component for various onboard systems such as boilers, pressure vessels, fuel lines, and auxiliary machinery. Its primary function is to automatically release excess pressure, preventing potential equipment damage or hazardous situations, and to reseal once normal pressure conditions are restored.
Key Features and Technical Advantages:
- Standard Compliance: Manufactured in strict accordance with the CB304-1977 standard, ensuring compatibility and reliability within marine engineering specifications.
- Robust Construction: The cast iron body provides excellent mechanical strength and resistance to deformation under high pressure, offering long-term service life.
- Flange Connection: Designed with flanged ends for secure, leak-proof bolting to pipeline systems, facilitating easier installation, maintenance, and inspection.
- Reliable Safety Mechanism: Incorporates a precision-engineered spring and disc mechanism that ensures accurate opening at the set pressure and tight sealing upon closure.
- Angle Body Design: The 90-degree angle configuration saves space and can simplify piping layouts, reducing the need for additional elbows and fittings.
- Corrosion Consideration: While cast iron offers good general corrosion resistance, internal trim materials and coatings can be customized for specific fluid services to enhance durability.
Technical Specifications Overview:
| Parameter | Description |
| Product Standard | CB304-1977 |
| Body Material | Cast Iron |
| Connection Type | Flange |
| Valve Type | Angle Pattern Safety/Relief Valve |
| Pressure Setting | Customizable based on system requirements |
| Temperature Range | Suitable for standard marine service temperatures |
| Size Range (Nominal Diameter) | Available in various sizes; please inquire for specific options |
Benefits for Your Operations: Choosing our Marine Flange Cast Iron Angle Safety Valve translates into tangible benefits for your business. You gain a certified and reliable safety component that helps ensure vessel compliance with safety regulations, potentially reducing insurance risks. The durable construction minimizes maintenance frequency and replacement costs, contributing to lower total cost of ownership. Furthermore, the standardized design ensures easier sourcing of spare parts and simplifies technical documentation for your fleet. Its reliable performance protects valuable onboard equipment from overpressure damage, avoiding costly downtime and repairs during critical voyages.
Shanghai Zhibang Valve has been a trusted manufacturer since 2016, consistently delivering quality valve solutions to a global clientele across North America, South America, Europe, Asia, Africa, and Oceania. Our annual export value reflects the confidence international partners place in our products. We support seamless logistics with multiple shipment ports including Shanghai, Guangzhou, Hong Kong, and Beijing. Our ISO9001 certification is a testament to our systematic approach to quality control, from material sourcing to final testing. When you select our CB304-1977 valve, you are not just buying a product; you are securing a partnership with a manufacturer dedicated to supporting the safety and efficiency of the global maritime industry. Contact us today to discuss your specific requirements, request a detailed quotation, or learn more about how our safety valves can enhance your marine systems.
Frequently Asked Questions (FAQ)
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Q: What is the primary application of this valve?
A: This valve is specifically designed as a safety or relief device for marine pressure systems, such as those found on ships and offshore platforms, to prevent overpressure conditions. -
Q: Does compliance with CB304-1977 make this valve suitable for all marine projects?
A: CB304-1977 is a recognized Chinese marine standard. It is crucial to verify with your project specifications or classification society (like ABS, DNV, LR, etc.) to ensure this standard meets the specific requirements for your application. -
Q: Can the pressure relief set point be adjusted?
A: The set pressure is typically calibrated and sealed at the factory according to customer order specifications. Field adjustment is not generally recommended without proper tools and expertise to maintain certification and performance. -
Q: What are the advantages of an angle valve design over a straight-through design?
A: The angle design allows the inlet and outlet to be at 90 degrees. This can simplify piping by eliminating the need for an elbow fitting at the valve installation point, often saving space and reducing potential leak points. -
Q: Is cast iron suitable for seawater service?
A> Cast iron offers good general corrosion resistance but may require specific internal coatings or material selections for direct, continuous seawater service. We recommend discussing the exact fluid media with our technical team for optimal material recommendations. -
Q: What flange standards are available?
A: Flanges can be manufactured to common standards such as ANSI, JIS, DIN, or GB. The specific standard, pressure class (e.g., 150#, 300#), and facing details should be specified at the time of inquiry or order. -
Q: Do you offer testing certificates for the valves?
A> Yes, functional testing is conducted prior to shipment. Documentation such as a test report or certificate of conformity can be provided upon request to support your quality assurance processes. -
Q: What is your lead time for production and delivery?
A: Lead time depends on order quantity, specific specifications, and current production schedule. We strive to provide efficient turnaround times and will offer a clear delivery schedule upon order confirmation.
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