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Help CenterDN50-DN600 Marine Pneumatic Actuated Butterfly Valve With Explosion Proof Option
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, specializes in designing and manufacturing high-performance industrial valves for demanding global markets. Our DN50-DN600 Marine Pneumatic Actuated Butterfly Valve with Explosion Proof Option represents our commitment to engineering robust solutions for critical marine and offshore fluid control applications. This valve combines reliable pneumatic actuation with a durable butterfly valve design, offering precise flow control, rapid response, and enhanced safety features suitable for harsh environments.
Engineered to meet the stringent requirements of marine operations, this valve series is a cornerstone for shipboard systems, offshore platforms, and coastal industrial facilities. The optional explosion-proof configuration adds a critical layer of protection for operations in potentially hazardous atmospheres, making it a versatile and secure choice for engineers and procurement specialists worldwide.
Key Product Features & Technical Specifications:
- Versatile Size Range: Available from DN50 (2 inches) to DN600 (24 inches), accommodating a wide spectrum of pipeline diameters and flow capacities.
- Robust Pneumatic Actuation: Utilizes a double-acting or spring-return pneumatic actuator, providing reliable, fail-safe operation with fast opening/closing cycles. The actuator is designed for compatibility with standard marine compressed air systems.
- Explosion-Proof Option: A critical safety feature for applications in areas with flammable gases or vapors. The explosion-proof actuator enclosure is constructed to prevent ignition of the external atmosphere, meeting relevant safety standards for hazardous locations.
- Durable Valve Body & Disc: The valve body and butterfly disc are manufactured from materials like carbon steel, stainless steel, or duplex steel, selected for corrosion resistance and strength in saline or chemically aggressive marine environments.
- High-Performance Sealing: Equipped with seals such as PTFE, EPDM, or Viton, ensuring excellent leak-tight closure and long service life across a broad temperature range.
- Flexible Connection Designs: Offered in flanged or wafer styles to simplify installation and integration into existing piping networks.
Detailed Technical Parameters Table:
| Parameter | Specification / Range |
|---|---|
| Nominal Diameter (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600 |
| Pressure Rating (PN) | PN10, PN16, PN25 (customizable) |
| Body Material Options | Carbon Steel (WCB), Stainless Steel (304/316), Duplex Steel |
| Disc Material Options | Stainless Steel, Nickel-plated, Coated Steel |
| Seal Material Options | PTFE, EPDM, Viton, NBR |
| Actuator Air Supply Pressure | Typically 4-7 bar (adjustable) |
| Operating Temperature Range | -20°C to +120°C (dependent on seal material) |
| Connection Standards | ISO, ANSI, DIN flanges; Wafer type |
| Optional Features | Explosion-proof actuator, Manual override, Position indicator, Limit switches |
Benefits for Your Operations:
- Enhanced Operational Safety: The explosion-proof option mitigates risks in hazardous zones, protecting personnel and assets.
- Reliable & Rapid Control: Pneumatic actuation offers quick response times and consistent performance, essential for process control and emergency shutdowns.
- Corrosion Resistance for Marine Use: Material selections are tailored to withstand seawater, humidity, and other corrosive elements common in maritime settings.
- Simplified Maintenance & Long Life: The robust design and quality seals reduce wear and the frequency of maintenance interventions.
- Global Compliance & Flexibility: Designed to align with international standards, facilitating use across diverse markets and projects.
Shanghai Zhibang Valve Manufacture Co., Ltd. operates under a certified ISO9001 quality management system, ensuring consistent product quality and reliable manufacturing processes. With an annual export value ranging between US$1 Million and US$1.5 Million, our valves have been successfully supplied to markets across North America, South America, Europe, Asia, Africa, and Oceania, demonstrating our global reach and customer trust. We ship from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics for our international clients.
Choosing our Marine Pneumatic Butterfly Valve means selecting a product backed by professional manufacturing expertise, rigorous quality control, and proven performance in challenging applications worldwide. Its combination of size versatility, pneumatic reliability, and critical safety options makes it a strategic component for upgrading or building marine fluid systems.
For detailed quotations, specific configuration requests, or technical support, please contact our team. We are ready to provide solutions that match your exact project requirements.
Frequently Asked Questions (FAQ):
-
What is the primary advantage of a pneumatic actuator over other types for this valve?
Pneumatic actuators provide fast, powerful, and repeatable operation using compressed air, which is commonly available on ships and offshore platforms. They are suitable for frequent cycling and offer a good balance of performance and cost for marine applications. -
How does the explosion-proof option work, and when is it required?
The explosion-proof design involves a specially constructed actuator housing that contains any internal spark or explosion, preventing it from igniting the surrounding flammable atmosphere. It is required in classified hazardous areas on vessels or offshore installations where flammable gases or vapors may be present. -
Can this valve be used for seawater or other corrosive fluids?
Yes, by selecting appropriate body and disc materials like stainless steel (316) or duplex steel, the valve offers excellent resistance to corrosion from seawater, bilge water, and various chemical fluids encountered in marine operations. -
What is the typical delivery time for a custom-sized order (e.g., DN400)?
Delivery times vary based on configuration and order volume. Standard sizes may have shorter lead times, while custom configurations might require additional manufacturing. Specific timelines can be provided upon request after reviewing your order details. -
Are manual override mechanisms available for these pneumatic valves?
Yes, manual override kits are often available as an optional feature. They allow for manual operation of the valve in case of pneumatic system failure or for maintenance purposes. -
What pressure rating (PN) is standard, and can higher ratings be accommodated?
Standard ratings typically include PN10, PN16, and PN25. Higher pressure ratings can be engineered based on specific project requirements, involving design adjustments for the body, disc, and seals. -
Does the valve come with position feedback or limit switches?
Position indicators are commonly included. Limit switches for signaling open/closed positions to a control system are available as an optional add-on to the actuator. -
What are the main maintenance considerations for this valve?
Primary maintenance involves periodic inspection of the seal for wear, checking actuator function, and ensuring the pneumatic supply is clean and dry. The robust design generally requires minimal routine maintenance.
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