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Help CenterCentric DIN 3202 Ductile Iron Butterfly Valve, DN50 to DN600 Size Range, PN10/PN16 Pressure Class
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and ISO9001 certified, proudly presents the Centric DIN 3202 Ductile Iron Butterfly Valve – a robust and reliable flow control solution designed for demanding industrial applications. With an annual export value exceeding US$1 million and a global footprint spanning North America, Europe, Southeast Asia, and beyond, our factory combines precision engineering with cost-effective manufacturing. This valve series, available in sizes from DN50 to DN600 and pressure classes PN10/PN16, offers exceptional durability, tight shut-off, and ease of installation, making it a preferred choice for water treatment, HVAC, and general pipeline systems.
Engineered to meet the rigorous DIN 3202 standard, this butterfly valve features a ductile iron body that provides superior strength and corrosion resistance compared to traditional cast iron. The centric disc design ensures low torque operation and minimal pressure drop, while the replaceable resilient seat guarantees bubble-tight sealing in both directions. Whether you need a wafer or lug type connection, manual or actuated operation, our valve can be customized to match your specific requirements.
Below are the key technical specifications and performance parameters for your reference:
| Parameter | Details |
|---|---|
| Body Material | Ductile Iron (GGG40 / GGG50) |
| Size Range | DN50 – DN600 (2" – 24") |
| Pressure Rating | PN10 / PN16 (150 psi / 232 psi) |
| Face-to-Face Dimension | DIN 3202 K1 (wafer) / K14 (lug) |
| Disc Material Options | Ductile Iron Nylon Coated, SS304, SS316, or SS316L |
| Seat Material Options | EPDM (standard), NBR, PTFE, Viton |
| Stem Material | Stainless Steel 410 / 420 |
| Temperature Range | -20°C to +120°C (depending on seat) |
| Operation | Lever handle, gearbox, pneumatic actuator, electric actuator |
Product Features & Benefits:
- Durable Ductile Iron Body: Offers higher tensile strength and impact resistance than gray iron, ensuring long service life even in high-pressure or abrasive environments.
- DIN 3202 Compliant Design: Guarantees interchangeability and compatibility with international pipeline systems, simplifying installation and maintenance.
- Bubble-Tight Shut-Off: The resilient seat design provides zero leakage at rated pressure, ideal for isolation and control applications.
- Low Torque Operation: The centric disc reduces operating torque, allowing for smaller actuators and lower energy consumption.
- Versatile Connection Options: Available in wafer (K1) or lug (K14) styles, suitable for both dead-end service and inline maintenance.
- Wide Material Selection: Disc and seat materials can be customized for water, oil, gas, or chemical media, providing excellent corrosion resistance.
- Easy Actuation: Can be fitted with manual lever, gearbox, pneumatic, or electric actuators to meet automation requirements.
- ISO9001 Certified Manufacturing: Every valve undergoes rigorous testing including shell test, seat test, and dimensional inspection to ensure consistent quality.
Why Choose Shanghai Zhibang Valve?
Since 2016, we have been dedicated to producing high-quality industrial valves for global markets. With an annual export value of US$1 million to US$1.5 million and shipments from Shanghai, Guangzhou, Hong Kong, and Beijing, we have built a reputation for reliability and competitive pricing. Our main markets include North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia, reflecting our ability to meet diverse international standards and customer requirements.
We understand that valve performance is critical to your operations. That's why each Centric DIN 3202 Butterfly Valve is manufactured under strict quality control procedures, with material certifications and test reports available upon request. Our experienced team provides prompt technical support and after-sales service, ensuring your satisfaction from inquiry to delivery.
Contact us today for a quotation or technical consultation. Let Shanghai Zhibang Valve be your trusted partner in flow control solutions.
Frequently Asked Questions (FAQ)
Q1: What is the difference between wafer and lug type butterfly valves?
A: A wafer type valve is installed between two flanges and held in place by the flange bolts, making it compact and cost-effective. A lug type valve has threaded inserts on both sides, allowing it to be bolted directly to flanges and enabling dead-end service (removal of downstream piping without system shutdown). Both styles are available in our DIN 3202 series.
Q2: Can this valve be used for potable water applications?
A: Yes, when equipped with an EPDM seat and nylon-coated ductile iron disc, the valve is suitable for potable water systems. Please specify your application when ordering so we can recommend the appropriate material combination.
Q3: What is the maximum working pressure for PN16 valves?
A: PN16 valves are rated for a maximum working pressure of 16 bar (232 psi) at ambient temperature. For higher temperatures or specific media, the pressure rating may be reduced – please consult our technical team for derating curves.
Q4: Do you provide actuators with the valve?
A: Yes, we can supply the valve with a lever handle, gearbox, pneumatic actuator, or electric actuator. Actuators are selected based on torque requirements, power supply, and control signal (e.g., on/off, modulating). We also offer mounting kits and accessories.
Q5: What is the lead time for standard sizes?
A: For standard sizes (DN50 to DN300) with common materials, the lead time is typically 15–25 working days after order confirmation. Larger sizes or special materials may require 30–40 working days. Please contact us for current lead times.
Q6: How do you ensure the valve's sealing performance?
A: Every valve undergoes a hydrostatic shell test at 1.5 times the rated pressure and a seat leakage test at 1.1 times the rated pressure. We also perform dimensional checks and visual inspections. Test certificates are available upon request.
Q7: Can the valve be used for bidirectional flow?
A: Yes, the centric resilient seated butterfly valve provides bidirectional bubble-tight shut-off. However, for optimal performance, we recommend installing the valve with the disc in the fully open or fully closed position during flow reversal.
Q8: What packing and shipping options do you offer?
A: Valves are packed in plywood cases or pallets, with proper cushioning to prevent damage during transit. We ship from Shanghai, Guangzhou, Hong Kong, or Beijing via sea, air, or express. FOB, CIF, and EXW terms are available.
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