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Help CenterDIN 3202 Pneumatic Butterfly Valve for Bulk Material Handling and Conveying Systems
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Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our DIN 3202 Pneumatic Butterfly Valve, specifically engineered for bulk material handling and conveying systems. With over 8 years of manufacturing experience since 2016, we have honed our expertise in valves that deliver reliable shut-off and flow control in demanding environments. This valve combines robust DIN standard design with pneumatic actuation, ensuring efficient operation in pneumatic conveying pipelines, dust collection systems, and silo discharge applications. Its innovative seat and disc geometry minimize material accumulation and wear, making it an ideal choice for cement, grain, chemical powders, and other dry bulk solids.
Our pneumatic butterfly valve is built to withstand harsh conditions while maintaining a tight seal against fine powders and granules. The compact design reduces installation space, and the pneumatic actuator allows for quick, remote-controlled opening and closing. This boosts automation in your system and lowers manual labor requirements. All critical components are precision manufactured and tested at our Shanghai facility, ensuring consistent quality across every unit.
Key Features & Technical Specifications
- DIN 3202 Compliant Dimensions: Ensures interchangeability and easy integration with existing piping systems (face-to-face dimensions per EN 558 series 20).
- Pneumatic Actuator Options: Choose from double-acting or spring-return (fail-safe) actuators; mounting bracket meets ISO 5211 standard.
- Material Versatility: Valve body available in cast iron, ductile iron, stainless steel (304/316), or carbon steel. Disc options include stainless steel with wear-resistant coating.
- Sealing System: Resilient seat (EPDM/NBR/PTFE) provides bubble-tight shut-off; seat can be replaced without special tools.
- Low Torque Design: Optimized disc profile reduces actuation torque, allowing smaller actuator sizing and lower energy consumption.
- Anti-Blowout Stem: One-piece stem with thrust bearing prevents accidental disconnection under pressure.
- Corrosion Resistance: External surfaces are epoxy-coated (color customizable) for long service life in dusty or humid environments.
| Parameter | Value |
|---|---|
| Size Range | DN50 – DN600 (2" – 24") |
| Working Pressure | Up to 16 bar (232 psi) |
| Temperature Range | -20°C to +120°C (depending on seat material) |
| Actuator Supply | 4–8 bar compressed air (oil-free, filtered) |
| Leakage Rate | Zero leakage (bubble-tight) per ISO 5208 |
Benefits for Your Bulk Material System
- Prevents Product Contamination: Smooth internal surfaces and full-bore design reduce material buildup; no cavities where residue can accumulate.
- High Cycle Life: Self-lubricating stem bearings and durable seat materials withstand thousands of cycles in high-frequency conveying lines.
- Fast Response Time: Pneumatic actuator opens/closes in
- Low Maintenance: Modular design simplifies inspection and part replacement; actuator can be serviced on-site.
- Customizable Connections: Wafer style fits between flanges; lug style allows single-side maintenance. We also offer flange drilling per DIN, ANSI, or JIS.
At Shanghai Zhibang Valve Manufacture Co., Ltd., we are committed to delivering reliable fluid handling solutions. Our DIN 3202 pneumatic butterfly valve has been exported to over 20 countries across North America, Europe, Southeast Asia, Africa, and the Middle East, with annual export value exceeding US$1 million. We hold ISO9001 certification for our quality management system, ensuring every valve is tested for pressure, leakage, and functional performance before shipment. Our factory is strategically located in Shanghai, China, with convenient shipping from Shanghai, Guangzhou, Hong Kong, and Beijing ports. We invite you to experience the durability and performance of our valve in your bulk material handling line. Contact us today for a quote or technical consultation – our expert team is ready to support your project with tailored solutions and competitive pricing.
Frequently Asked Questions (FAQ)
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Q: What is the lead time for standard sizes?
A: Typical lead time is 15–25 working days for standard sizes (DN50-DN300). Larger sizes may require 30–40 working days. Rush orders can be arranged upon request. -
Q: Can this valve handle abrasive bulk materials like cement or fly ash?
A: Yes. We recommend a hardened stainless steel disc (e.g., with Stellite coating) and an EPDM or PTFE seat. The valve's design minimizes abrasion and extends service life. Please provide material details for the best recommendation. -
Q: Do you offer a fail-safe (spring-return) actuator?
A: Absolutely. Spring-return actuators are available in both normally closed (NC) and normally open (NO) configurations. Specify your requirement when ordering. -
Q: What is the warranty period?
A: We offer a standard 12-month warranty from the date of shipment, covering manufacturing defects. Extended warranties are negotiable. -
Q: Can I get a sample valve for testing?
A: Yes, sample orders are accepted. Contact our sales team to discuss sample availability and terms. -
Q: What control accessories can be integrated (solenoid valves, limit switches, etc.)?
A: We can mount solenoid valves (Namur) and mechanical/inductive limit switches as per your specification. Electrical connections can be customized for 24V DC or 220V AC. -
Q: How do you ensure the valve is resistant to dust ingress?
A: The actuator housing has IP67 protection as standard, and we apply special seals on the stem entry to prevent dust from penetrating the internal mechanism. -
Q: Do you provide certificates of material and pressure test?
A: Yes. Each valve can be supplied with material certificates (EN 10204 3.1) and a hydrostatic/pneumatic test report. Please request at order placement.
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