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Help CenterMarine Angle Flange Pressure Relief Valve CBT3843-1999, Cast Steel Construction
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As a dedicated manufacturer with a strong focus on maritime fluid control solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Marine Angle Flange Pressure Relief Valve, model series compliant with CBT3843-1999. Established in 2016 and backed by ISO9001 certified quality management, we understand the critical need for reliability and safety in marine applications. This valve is engineered to provide dependable overpressure protection for various shipboard systems, ensuring operational integrity and crew safety. Our commitment to precision manufacturing and stringent testing makes this valve a trusted component for shipbuilders and marine engineers worldwide, supporting our annual export reach across continents from North America to Oceania.
This pressure relief valve is specifically designed for the demanding marine environment. Its cast steel construction offers superior strength and corrosion resistance, essential for withstanding salty, humid conditions. The angle flange design facilitates easier installation and integration into complex piping layouts commonly found on vessels, saving valuable time and labor during fit-out.
Key Features and Technical Advantages:
- Robust Cast Steel Body: Provides excellent mechanical strength and durability against shock, vibration, and corrosive seawater exposure.
- Standard Compliance: Manufactured in accordance with the Chinese ship standard CBT3843-1999, ensuring it meets specific requirements for marine use.
- Precise Pressure Relief: Features a calibrated spring mechanism that activates at a pre-set pressure, automatically releasing excess pressure to protect pumps, tanks, and pipelines.
- Angle Flange Connection: The angled inlet/outlet configuration allows for more flexible piping arrangements, reducing the need for extra elbows and fittings.
- Reliable Resealing: Designed to close tightly once system pressure returns to a safe level, preventing product loss and maintaining system efficiency.
- Low Maintenance: Simple design with accessible internal parts allows for easy inspection, maintenance, or repair, minimizing vessel downtime.
Technical Specifications Overview:
| Parameter | Description / Typical Range |
|---|---|
| Product Standard | CBT3843-1999 (Marine Standard) |
| Primary Material | Cast Steel (Grade customizable) |
| Connection Standard | Flanged (Angle Type) |
| Flange Rating | PN16, PN25, or as per request |
| Set Pressure Range | Adjustable, commonly 0.1 - 2.5 MPa |
| Suitable Media | Sea water, fresh water, oil, air, other non-aggressive fluids |
| Operating Temperature | -20°C to +200°C (dependent on seal material) |
| Main Applications | Bilge systems, ballast systems, fuel oil systems, cooling systems, cargo pump discharges |
The benefits for our clients are clear. By integrating this valve into your marine systems, you gain enhanced safety assurance, reducing the risk of catastrophic equipment failure due to overpressure. Its durable construction translates to a longer service life and lower total cost of ownership. Furthermore, compliance with the recognized CBT standard simplifies the approval process for new builds and retrofits, providing peace of mind to shipowners and classification societies.
With an annual export value between US$1 Million and US$1.5 Million, Shanghai Zhibang Valve has established a solid reputation for delivering quality marine valves to markets across the globe, including North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing. This global footprint is a testament to the reliability and performance of our valves, including the CBT3843-1999 Marine Angle Flange Pressure Relief Valve. We invite you to experience the Zhibang difference—where engineering precision meets maritime durability. Contact us today to discuss your specific pressure relief requirements or to request a detailed quotation.
Frequently Asked Questions (FAQ):
Q1: What is the main purpose of this Marine Angle Flange Pressure Relief Valve?
A1: Its primary function is to automatically release fluid from a pressurized system (like a pipeline or tank) when the pressure exceeds a pre-determined safe limit. This protects expensive marine equipment from potential damage caused by overpressure events.
Q2: Can this valve be used for media other than water?
A2: Yes. While ideal for sea water and fresh water, it is also suitable for other non-aggressive fluids such as oils and air. The specific seal material can be selected based on the media to ensure compatibility and longevity.
Q3: How do I determine the correct set pressure for my application?
A3: The set pressure should be chosen based on the maximum allowable working pressure (MAWP) of the system it is protecting. It is typically set 10% above the normal operating pressure but below the MAWP. Our technical team can assist you in selecting the appropriate setting.
Q4: Is the valve adjustable on-site, or is it factory-set?
A4: The valve can be supplied factory-set to your specified pressure. Some models may also allow for field adjustment within a certain range, but this requires proper tools and expertise to ensure accuracy and safety.
Q5: What maintenance does this valve require?
A5: Regular maintenance is recommended, including periodic testing to ensure it opens at the correct pressure and inspections for signs of corrosion, leakage, or spring fatigue. The design allows for relatively straightforward disassembly for internal inspection and part replacement if needed.
Q6: Do you offer different sizes and pressure ratings?
A6: Absolutely. While the standard covers the design, we can manufacture valves in various nominal diameters (DN) and pressure ratings (PN classes) to match your specific piping system requirements. Please provide your specifications for a tailored solution.
Q7: What documentation is provided with the valve?
A7: Each valve typically comes with a material certificate, a pressure test certificate, and a general product datasheet. Certificates of conformity to CBT3843-1999 can be provided upon request.
Q8: What is your lead time for this product?
A8: Lead time varies based on order quantity, specifications, and current production schedule. Standard configurations may have shorter lead times. We strive to provide accurate delivery estimates upon order confirmation to help you plan your project timeline.
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