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Help CenterCBT3843-1999 Marine Angle Flange Pressure Relief Valve, 1-Year Performance Warranty
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As a specialized manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our CBT3843-1999 Marine Angle Flange Pressure Relief Valve. Engineered for demanding maritime environments, this valve provides reliable overpressure protection for critical shipboard and offshore piping systems. Our commitment to quality, backed by over 8 years of industry experience and an annual export value reaching up to US$1.5 million, ensures that every valve meets stringent performance standards. We serve global markets from North America to Southeast Asia, delivering robust solutions directly from our manufacturing base in Shanghai.
This marine-grade pressure relief valve is designed according to the Chinese Marine Standard CBT3843-1999, ensuring compatibility and compliance with specific maritime requirements. Its angle flange configuration is a key feature, offering significant advantages in space-constrained engine rooms and piping layouts common on vessels.
- Robust Construction for Harsh Environments: Manufactured from high-grade materials such as cast steel or ductile iron, with optional stainless steel components, the valve body is built to withstand corrosive seawater, high humidity, and constant vibration. Internal seals, available in NBR, EPDM, or FKM, are selected for durability and chemical resistance.
- Precise and Reliable Pressure Relief: The valve is calibrated to open at a specific set pressure, safely discharging excess fluid or gas to prevent equipment damage or hazardous situations. Its reliable operation is crucial for the safety of the vessel, cargo, and crew.
- Space-Saving Angle Design: Unlike straight-through valves, the angle flange design allows for a 90-degree change in flow direction within the valve body itself. This simplifies piping arrangements, reduces the number of pipe elbows needed, and saves valuable space in compact marine installations.
- Easy Installation and Maintenance: The flanged ends facilitate secure and leak-proof connections to standard piping systems. The design often allows for in-line maintenance or repair without requiring complete removal from the pipeline, minimizing downtime.
Here is a summary of typical specifications. Please note that specific parameters like pressure rating and orifice size are customizable based on your system requirements.
| Parameter | Description / Option |
| Design Standard | CBT3843-1999 |
| Body Pattern | Angle Type |
| End Connection | Flanged (RF, FF, etc. available) |
| Primary Body Material | Cast Steel WCB, Ductile Iron, Stainless Steel CF8/CF8M |
| Seat & Seal Material | NBR, EPDM, FKM, PTFE |
| Set Pressure Range | Customizable upon request |
| Applicable Fluid | Water, Oil, Air, Steam (compatible with media) |
| Warranty | 1-Year Performance Warranty |
Choosing our valve translates into tangible benefits for shipbuilders, repair yards, and vessel operators. You gain a safety-critical component that protects expensive pumps, heat exchangers, and tanks from overpressure failures. The optimized angle design reduces installation time and material costs by simplifying the pipe routing. Furthermore, the reliable performance minimizes unscheduled maintenance, contributing to higher operational uptime for the vessel. Our valves are trusted partners in ensuring the smooth and safe operation of marine systems worldwide.
Our manufacturing expertise is validated by ISO9001 certification, a testament to our consistent quality management processes. With a strong export presence across continents from North America to Africa and Oceania, and major shipment ports like Shanghai and Hong Kong, we have proven our capability to deliver reliable marine valves globally. The included 1-Year Performance Warranty provides additional assurance of our product's durability. We invite you to contact us to discuss how this CBT3843-1999 compliant valve can be tailored to secure your specific marine application.
Frequently Asked Questions (FAQ)
Q1: What does the "CBT3843-1999" in the product title mean?
A1: It refers to the Chinese Marine Standard that defines the technical requirements, testing methods, and inspection rules for marine valves. This valve is designed and manufactured to comply with this specific standard, ensuring its suitability for marine use.
Q2: What is the main advantage of an angle flange design compared to a straight pattern?
A2: The angle design integrates a 90-degree turn into the valve body. This saves significant space in tight engine rooms, reduces the need for additional pipe elbows, and can simplify the overall piping layout, leading to easier installation and potentially lower installation costs.
Q3: Can this valve be used for fluids other than water?
A3: Yes. Depending on the selected trim materials (seals, seats), it can handle various media common in marine systems, including oil, air, and steam. It is crucial to specify the fluid type during inquiry so we can recommend the appropriate material configuration.
Q4: How do I determine the correct set pressure for my application?
A4: The set pressure must be determined based on the maximum allowable working pressure (MAWP) of the protected equipment or pipeline section. We require this information to calibrate the valve spring accordingly. Our technical team can assist you with this specification.
Q5: What does the "1-Year Performance Warranty" cover?
A5: This warranty covers defects in materials and workmanship under normal service conditions as specified. It guarantees that the valve will perform its pressure relief function as designed for one year from the date of shipment. Specific warranty terms are provided with the commercial documentation.
Q6: Are the flanges standard dimensions?
A6: Yes, we manufacture flanges to common international standards such as ANSI, JIS, DIN, or GB. Please specify your required flange standard, pressure class (e.g., PN16, Class 150), and facing type (e.g., Raised Face) when placing an order.
Q7: Do you offer customization for different sizes or special materials?
A7: Absolutely. As a manufacturer, we can customize the valve size (orifice diameter), pressure rating, and material selection (e.g., full stainless steel body for highly corrosive environments) to meet your project's exact requirements.
Q8: What are the main markets you export to?
A8: We have extensive export experience, with our products reaching key markets including North America, Southeast Asia, Eastern Europe, Africa, the Middle East, and Oceania. We ship from major Chinese ports like Shanghai, Guangzhou, and Hong Kong for efficient logistics.
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