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Help CenterCompact DIN 3202 Pneumatic Butterfly Valve With Manual Override, DN80-DN200
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As a leading manufacturer with a strong commitment to quality and innovation, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our advanced Compact DIN 3202 Pneumatic Butterfly Valve with Manual Override. Designed for the modern industrial landscape, this valve combines robust European standard design with the efficiency of pneumatic actuation and the critical safety feature of manual override. Since our establishment in 2016, we have dedicated ourselves to engineering fluid control solutions that offer reliability, durability, and exceptional value for our global clientele across diverse markets from North America to Southeast Asia. This particular valve is engineered to provide precise flow control in a compact, space-saving design, making it an ideal choice for applications where efficiency and operational safety are paramount.
The core value of this valve lies in its seamless integration of automated control and manual backup. The pneumatic actuator ensures rapid, reliable, and repeatable operation, perfect for automated process lines. The integrated manual override mechanism is a crucial safety and maintenance feature, allowing for immediate manual intervention in case of power or air supply failure, or during system commissioning and troubleshooting. This dual-mode functionality ensures uninterrupted process flow and enhances overall system uptime.
Key Product Features & Technical Advantages:
- Compact & Lightweight Design: Engineered to DIN 3202 standards, the valve features a compact body that requires minimal installation space and reduces structural load on piping systems compared to traditional valves.
- Robust Pneumatic Actuator: Equipped with a double-acting or spring-return pneumatic actuator, providing high torque output for reliable 90-degree rotation and secure shut-off. Actuators are typically made from anodized aluminum or stainless steel housing for corrosion resistance.
- Integrated Manual Override: Features a handwheel or lever-type manual override. This allows operators to open or close the valve manually without disconnecting the actuator, ensuring operational continuity during emergencies or maintenance.
- Superior Sealing Performance: The valve disc is precision-machined and paired with a resilient seat (EPDM, NBR, or PTFE) to ensure bubble-tight shut-off and long service life, even with frequent cycling.
- Versatile Material Construction: Available in various body materials like cast iron, ductile iron, and stainless steel (CF8/CF8M), and disc materials like stainless steel, to suit different media and environmental conditions (water, air, mild chemicals).
- Low Operating Torque & Easy Maintenance: The eccentric disc design minimizes friction during operation, reducing wear on the seat and requiring lower actuation torque. The simple design allows for easy inspection and seat replacement if necessary.
Technical Specifications Table:
| Parameter | Specification |
| Design Standard | DIN 3202 F4/F5 |
| Nominal Diameter (DN) | 80, 100, 125, 150, 200 |
| Pressure Rating (PN) | PN10, PN16 |
| Connection Type | Wafer, Lug, Double Flange (as per DIN standard) |
| Temperature Range | -20°C to +120°C (dependent on seat material) |
| Actuator Air Supply | 4-7 bar (standard), other pressures customizable |
| Control Signal (Optional) | On/Off, 4-20mA, 0-10V for proportional control |
| Position Feedback (Optional) | Limit switches, potentiometer, Namur solenoid valve |
Benefits for Your Operation:
- Enhanced Process Safety: The manual override is a fail-safe feature that prevents total system shutdown during pneumatic system failure, protecting your assets and production schedule.
- Reduced Downtime: Easy integration into PLC/DCS systems for automated control, combined with simple manual operation for maintenance, significantly reduces valve-related downtime.
- Cost-Effective Solution: The compact design lowers installation and space costs. The durable construction and low maintenance requirements lead to a lower total cost of ownership.
- Wide Application Compatibility: Suitable for HVAC systems, water treatment plants, industrial process lines (food & beverage, pharmaceutical), compressed air systems, and irrigation systems.
Frequently Asked Questions (FAQ):
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Q: What is the main advantage of a DIN 3202 standard valve?
A: DIN 3202 is a recognized European standard that defines dimensions, pressure ratings, and face-to-face lengths. Using this standard ensures interchangeability with other compliant valves, simplifies sourcing, and guarantees a certain level of performance and quality. -
Q: How does the manual override function work?
A: The pneumatic actuator is equipped with a manual override device, typically a handwheel or lever. By disengaging a clutch or using a dedicated tool, you can manually turn the valve stem to open or close the valve independently of the pneumatic air supply. -
Q: Can this valve be used for throttling (proportional flow control)?
A: While primarily designed for on/off service, it can be used for basic throttling. For precise proportional control, we recommend specifying a version with a positioner (e.g., 4-20mA input) and a characterized disc design, which is available as an option. -
Q: What seat materials are available and how do I choose?
A: Common options include EPDM for hot water and mild chemicals, NBR for oils and fuels, and PTFE for aggressive chemicals and high temperatures. Selection depends on your specific media, temperature, and chemical compatibility requirements. -
Q: What is the lead time for an order of DN150 valves?
A: Lead times vary based on configuration and order quantity. Standard configurations are often available from stock or have shorter production cycles. We recommend contacting our sales team with your specific requirements for an accurate delivery schedule. -
Q: Do you provide custom configurations, such as different flange standards or special coatings?
A: Yes, as a manufacturer, we offer customization. Flanges can be made to other standards like ANSI, and special coatings like epoxy paint for corrosive environments are available. Please discuss your needs with our engineering team. -
Q: What after-sales support do you provide?
A: We provide technical documentation, installation manuals, and basic troubleshooting guides. Support from our technical team is available. Spare parts like seals and gaskets are also supplied.
Backed by our ISO9001:2015 certified quality management system, every Compact DIN 3202 Pneumatic Butterfly Valve undergoes rigorous testing to ensure it meets stringent performance criteria before shipment. Our substantial annual export volume of US$1-1.5 million to key industrial regions worldwide, including North America, Europe, and Southeast Asia, is a testament to the consistent reliability and competitive value of our products. We leverage major ports like Shanghai, Guangzhou, and Hong Kong to ensure efficient and flexible logistics for our international partners. Choose Shanghai Zhibang for a valve solution that delivers uncompromising quality, operational safety through its manual override feature, and the peace of mind that comes with dealing with an established, export-oriented manufacturer. Contact us today to discuss your project specifications and receive a detailed quotation.
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