DIN 3202 Seawater Butterfly Valve - Cast Iron Body With 316L Disc, EPDM Rubber Seal, DN80 PN16 Flanged
Product Spotlights
As a specialized manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is dedicated to providing robust and reliable fluid control solutions for demanding industrial environments. Our DIN 3202 Seawater Butterfly Valve is engineered specifically to withstand the corrosive challenges of marine and seawater applications. With an annual export value reflecting our global reach across markets like North America, Southeast Asia, and Europe, we combine stringent ISO9001 quality management with practical engineering to deliver valves that ensure long-term operational integrity and cost-effectiveness for your systems.
This valve is designed as a critical component for pipelines handling seawater, brine, or other aggressive fluids. Its construction prioritizes durability and sealing performance under pressure.
- Corrosion-Resistant Construction: The body is made from cast iron, providing structural strength, while the disc is crafted from 316L stainless steel, offering superior resistance to chloride-induced corrosion (pitting and crevice corrosion) common in seawater.
- Robust Sealing System: The valve utilizes an EPDM (Ethylene Propylene Diene Monomer) rubber seal. EPDM is known for its excellent resistance to seawater, aging, and a wide temperature range, ensuring a tight seal and preventing leakage.
- Standard Compliance: Manufactured according to DIN 3202 standards, ensuring dimensional accuracy, pressure ratings, and interface compatibility with other DIN-standard pipeline components.
- Flanged Connection: Features DN80 PN16 flanged ends. DN80 indicates a nominal diameter of 80 mm, suitable for medium flow rates. PN16 denotes a pressure rating of 16 bar, making it suitable for many industrial and marine pressure systems.
- Versatile Operation: The butterfly valve design allows for quick opening and closing, efficient flow control, and relatively low torque operation, which can be advantageous for automated systems.
Below is a summary of key technical specifications:
| Parameter | Specification |
| Valve Type | Butterfly Valve |
| Body Material | Cast Iron |
| Disc Material | 316L Stainless Steel |
| Seal Material | EPDM Rubber |
| Design Standard | DIN 3202 |
| Nominal Diameter (DN) | 80 |
| Pressure Rating (PN) | 16 Bar |
| Connection Type | Flanged |
| Primary Application | Seawater, Marine Systems, Corrosive Fluids |
The advantages of choosing this valve extend beyond its specifications:
- Extended Service Life: The combination of 316L disc and EPDM seal significantly reduces maintenance frequency and replacement costs in corrosive environments.
- System Reliability: Consistent sealing performance under PN16 pressure ensures process stability and prevents unplanned shutdowns.
- Global Compatibility: DIN standard and flanged design facilitate integration into existing international projects, particularly in European and global marine industries.
- Cost-Efficient Operation: Butterfly valves generally have a simple design with low flow resistance, which can contribute to energy savings in pumping systems.
Shanghai Zhibang's commitment to quality is backed by our ISO9001 certification, ensuring every valve meets consistent production standards. Our products are trusted by clients from North America to Southeast Asia, Africa, and Europe, supported by an annual export volume that demonstrates our capability to serve global markets efficiently. We offer flexible shipment options from major ports including Shanghai, Guangzhou, Hongkong, and Beijing. For your seawater and corrosive fluid handling needs, this DIN 3202 Butterfly Valve provides a dependable, standardized, and durable solution. Contact us to discuss how this valve can enhance the reliability and longevity of your marine or industrial fluid system.
Frequently Asked Questions (FAQ)
-
Q: What is the main advantage of using a 316L stainless steel disc in a seawater valve?
A: 316L stainless steel contains molybdenum, which provides enhanced resistance to corrosion from chlorides, such as those present in seawater. This helps prevent pitting and crevice corrosion, extending the valve's operational life in marine environments. -
Q: Why is EPDM rubber chosen for the seal?
A: EPDM rubber exhibits excellent resistance to seawater, ozone, weathering, and a broad range of temperatures. It maintains its elasticity and sealing properties over time in such conditions, unlike some other elastomers which may degrade. -
Q: Can this valve be used for fluids other than seawater?
A: Yes. While optimized for seawater, its corrosion-resistant materials make it suitable for other aggressive fluids like certain chemicals, brines, or treated wastewater, provided the temperature and pressure ratings are compatible. -
Q: What does "DN80 PN16" mean?
A: DN80 refers to the nominal diameter, approximately 80 mm, indicating the size of the pipeline connection. PN16 is the pressure nominal rating, meaning the valve is designed to handle a maximum pressure of 16 bar under standard conditions. -
Q: Is the valve compatible with ANSI or other flange standards?
A: This valve is manufactured to DIN standards. While flange dimensions differ from ANSI, adaptors or specific flange facing may be available upon request. It is primarily designed for systems using DIN flange specifications. -
Q: What types of actuation (operation) are available for this valve?
A: The valve typically comes with a manual lever or handwheel. Options for gear operators, electric actuators, or pneumatic actuators can be customized based on your system requirements. -
Q: Does Shanghai Zhibang provide testing or certification for these valves?
A: Our manufacturing process is governed by ISO9001 for quality assurance. Specific pressure tests or material certifications can be provided as part of the documentation, customizable to client needs. -
Q: What is the typical delivery lead time for this product?
A: Lead times vary based on order quantity and customization. With shipment from ports like Shanghai or Guangzhou, we strive for efficient logistics to major markets worldwide. Please inquire for a specific timeline for your project.
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