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Help CenterSeawater Butterfly Valve DIN 3202 - Factory Warranty, Standard Compliance, Cast Iron & 316L Construction
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As a professional manufacturer with a solid foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Seawater Butterfly Valve engineered to DIN 3202 standards. Designed specifically for demanding marine and offshore applications, this valve combines robust cast iron construction with superior 316L stainless steel internals to deliver reliable performance in corrosive seawater environments. Our commitment to ISO9001-certified quality control ensures every valve meets stringent industry requirements, providing you with a durable and cost-effective solution for fluid control in challenging conditions.
This valve is engineered to excel where others falter. The strategic material selection is key to its longevity.
- Corrosion-Resistant Duo: The valve body is constructed from high-grade cast iron, offering excellent structural strength and cost-efficiency. The critical internal components—the disc and shaft—are made from 316L stainless steel, renowned for its exceptional resistance to pitting and crevice corrosion in chloride-rich environments like seawater.
- Precision Sealing for Zero Leakage: The valve features a precision-machined disc and a resilient seat (available in EPDM, NBR, or PTFE) that ensures bubble-tight shut-off, preventing costly seawater ingress or product loss.
- Versatile Operation & Installation: Available in wafer or lug design for easy installation between flanges, it saves space and weight. Operation is flexible, from simple manual lever and gearbox to fully automated electric or pneumatic actuation, adapting to your system's needs.
- Standard Compliance for Global Acceptance: Manufactured in compliance with DIN 3202 F1, this valve meets widely recognized dimensional and pressure standards, ensuring compatibility with international piping systems and simplifying procurement for projects worldwide.
Beyond its core construction, the valve offers significant advantages for system designers and operators.
- Low Maintenance & High Reliability: The robust design and corrosion-resistant materials minimize wear, leading to reduced maintenance cycles and lower total cost of ownership over the valve's extended service life.
- Excellent Flow Characteristics: The streamlined disc design offers low flow resistance when fully open, optimizing pump efficiency and reducing energy consumption in seawater intake or cooling systems.
- Factory Warranty for Peace of Mind: Every valve is backed by our comprehensive factory warranty, reflecting our confidence in its quality and durability.
Below is a summary of typical technical specifications. Custom configurations are available upon request.
| Parameter | Specification |
|---|---|
| Design Standard | DIN 3202 F1 |
| Body Material | Cast Iron |
| Disc & Shaft Material | 316L Stainless Steel |
| Pressure Rating (PN) | 10, 16 |
| Size Range (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600 |
| Seat Material Options | EPDM, NBR, PTFE |
| Temperature Range | Depends on seat material (e.g., EPDM: -20°C to +120°C) |
| Connection Types | Wafer, Lug (Optional) |
With an annual export value ranging between US$1 Million and US$1.5 Million and a presence in markets across North America, South America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang has proven its capability to deliver reliable industrial valves globally. Our products are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Choosing our Seawater Butterfly Valve means selecting a product backed by manufacturing expertise, international compliance, and a commitment to customer satisfaction. Contact us today to discuss how this durable, high-performance valve can enhance the reliability and efficiency of your marine or industrial fluid system.
Frequently Asked Questions (FAQ)
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Q: Why is 316L stainless steel used for the disc and shaft instead of the entire valve?
A: Using 316L stainless steel for the disc and shaft, which are in direct contact with the corrosive medium, provides targeted corrosion resistance where it's most needed. The cast iron body offers structural strength and cost-effectiveness for the pressure-containing parts, creating an optimal balance of performance and value. -
Q: What does compliance with DIN 3202 F1 mean for my installation?
A: Compliance with DIN 3202 F1 ensures the valve has standardized face-to-face dimensions and flange connections according to this widely accepted German industrial standard. This guarantees proper fit and interchangeability with other DIN-compliant piping components, simplifying design and installation. -
Q: Can this valve be used with fluids other than seawater?
A: Yes. While optimized for seawater, its corrosion-resistant construction makes it suitable for a range of other mildly corrosive fluids, including brackish water, certain chemicals, and industrial process water. The appropriate seat material should be selected based on the specific fluid's chemical compatibility. -
Q: What types of actuators can be fitted to this butterfly valve?
A: The valve is designed to accommodate various actuators. Options include manual levers, manual gearboxes for higher torque, as well as electric and pneumatic actuators for automated control. The specific mounting interface can be customized upon request. -
Q: How does the factory warranty work, and what does it cover?
A: Our factory warranty covers defects in materials and workmanship under normal use for a specified period from the date of shipment. The exact terms are provided with the product documentation. It demonstrates our confidence in the product's quality and provides assurance for your investment. -
Q: What is the delivery time for standard sizes, and can you produce custom sizes?
A: Standard sizes (DN50-DN600) typically have shorter lead times, depending on stock levels. We also offer customization services for non-standard sizes or special requirements. Please contact our sales team with your specifications for an accurate timeline and quotation. -
Q: What seat material is recommended for standard seawater service?
A: For standard seawater applications, EPDM (Ethylene Propylene Diene Monomer) is a commonly recommended seat material due to its good resistance to seawater, ozone, and weathering, along with a wide temperature range.
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