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Help Center316L Stainless Steel DIN 3202 Butterfly Valve, DN80-DN200, PN16, Full Bore, Manual Gearbox
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Shanghai Zhibang Valve Manufacture Co., Ltd, a dedicated manufacturer established in 2016, presents our premium 316L Stainless Steel DIN 3202 Butterfly Valve in sizes DN80 to DN200 with PN16 rating. Designed for full bore flow and equipped with a manual gearbox for precise control, this valve delivers exceptional corrosion resistance and long service life in demanding industrial applications. With ISO9001 certification and annual export value exceeding US$1 million, we ensure every unit meets strict quality standards.
Our butterfly valve is engineered according to DIN 3202 standard, featuring a wafer-type body that allows easy installation between flanges. The 316L stainless steel construction provides superior resistance to chlorides, acids, and harsh environments, making it ideal for chemical processing, marine, pharmaceutical, and water treatment industries. The full bore design minimizes pressure drop and ensures maximum flow capacity, while the manual gearbox offers smooth and safe operation even in high-torque conditions.
Key Features & Technical Advantages
- Corrosion-Resistant Material: 316L stainless steel body and disc withstand aggressive media, reducing maintenance and replacement costs.
- Full Bore Design: No flow restriction; suitable for viscous fluids and slurries.
- Manual Gearbox Actuator: Provides mechanical advantage for easy opening/closing under high pressure; lockable handle for safety.
- DIN 3202 Compliance: Interchangeable with other standard wafer butterfly valves; face-to-face dimensions per EN 558-1.
- Bi-Directional Sealing: PTFE seat ensures tight shut-off in both flow directions.
- Low Torque Operation: Optimized disc profile reduces required torque, extending gearbox life.
- Easy Installation: Wafer style fits between PN16 flanges without additional gaskets.
Technical Specifications
| Size Range | DN80, DN100, DN125, DN150, DN200 |
| Pressure Rating | PN16 (16 bar) |
| Body Material | 316L Stainless Steel (CF3M) |
| Disc Material | 316L Stainless Steel |
| Seat Material | PTFE (optional EPDM, VITON) |
| Stem Material | 316 Stainless Steel |
| Face-to-Face Dimension | Per DIN 3202 K1 / EN 558-1 Series 20 |
| Operation Temperature | -20°C to +200°C (depending on seat) |
| Actuator Type | Manual Gearbox with handwheel |
| Standard | DIN 3202, ISO 9001 |
Customer Benefits
- Longer Lifespan: 316L stainless steel resists pitting and crevice corrosion, reducing replacement frequency.
- Lower Total Cost of Ownership: Full bore design reduces energy loss; gearbox requires minimal maintenance.
- Versatile Application: Suitable for water, oil, gas, steam, and many chemicals; customizable seat materials available.
- Global Compliance: DIN standards accepted in Europe, Asia, Middle East, and beyond; easy integration into existing systems.
- Quick Delivery: As a manufacturer with Shanghai port access, we offer fast shipping to major global markets.
Since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd has been committed to delivering high-quality industrial valves to customers across North America, Europe, Southeast Asia, Africa, and Oceania. Our ISO9001-certified production facility ensures rigorous quality control from raw material to final testing. With annual export revenue between US$1 million and US$1.5 million, we have established trusted partnerships worldwide. Every butterfly valve is individually pressure-tested and functionally checked before shipment. Choose our 316L stainless steel DIN 3202 butterfly valve for reliable performance in your most critical applications. Contact us today for a quote or technical support.
Frequently Asked Questions
Q1: What is the difference between a full bore and reduced bore butterfly valve?
A1: Full bore (full port) butterfly valve has a disc diameter equal to the pipe inner diameter, allowing unobstructed flow and minimal pressure drop. Reduced bore valves have a smaller disc, which can cause flow restriction. Our valve is full bore, ideal for applications requiring high flow and low resistance.
Q2: Can this valve be used for seawater or brine applications?
A2: Yes, 316L stainless steel offers excellent resistance to chloride corrosion, making it suitable for seawater and brackish water environments. For best performance, we recommend PTFE seat material.
Q3: What is the torque required to operate the manual gearbox?
A3: The gearbox multiplies handwheel torque, typically requiring 20-40 Nm input for DN80, increasing with size. Exact values are provided in the product data sheet. The gearbox is designed for easy one-person operation.
Q4: Is the valve bi-directional? Can it seal against pressure from either side?
A4: Yes, the valve is bi-directional. The PTFE seat provides tight shut-off in both flow directions up to PN16 rating. No additional check valve is needed for reverse flow.
Q5: What are the available seat options and their temperature ranges?
A5: Standard seat is PTFE (-20°C to +200°C). Optional seats include EPDM (-40°C to +120°C) for water, and VITON (-20°C to +200°C) for oil and chemicals. Contact us for specific media compatibility.
Q6: Can I get a valve with pneumatic or electric actuator instead of manual gearbox?
A6: Yes, we offer customization options. You can order this butterfly valve with pneumatic actuator (double-acting or spring-return) or electric actuator (on/off or modulating). Please specify when placing an order.
Q7: What is the lead time for DN80 to DN200 manual gearbox valves?
A7: Standard sizes DN80-DN200 are usually in stock; lead time is 7-15 days depending on quantity. Custom orders (e.g., special seat or actuator) may take 20-30 days. Contact our sales team for accurate delivery schedule.
Q8: Do you provide test certificates and material certificates?
A8: Yes, we can provide Material Test Report (MTR) for 316L stainless steel, pressure test certificate, and ISO9001 quality documentation. These are available upon request at no extra cost.
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