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Help CenterExplosion-Proof Design Pneumatic Marine Gate Valve, DN Range 50-200, Pressure Rating 1.6-4.0 MPa
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As a professional valve manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our robust Explosion-Proof Design Pneumatic Marine Gate Valve. Engineered for the most demanding maritime and industrial environments, this valve combines the reliability of a gate valve with the safety and automation of a pneumatic actuator, making it an ideal solution for critical flow isolation applications where operational safety is paramount. Our years of experience supplying to global markets, including North America, Europe, and Southeast Asia, ensure this product meets international expectations for performance and durability.
The core value of this valve lies in its intrinsic safety. The explosion-proof design of the pneumatic actuator prevents ignition in hazardous atmospheres commonly found in marine engine rooms, offshore platforms, and chemical processing plants. This feature, coupled with a sturdy valve body capable of handling pressures from 1.6 to 4.0 MPa across DN 50 to 200 sizes, provides a dependable shut-off mechanism for water, oil, gas, and other media.
Key Features & Technical Advantages:
- Enhanced Safety: The pneumatic actuator is housed in a certified explosion-proof enclosure, eliminating spark risks in Zone 1 and Zone 2 hazardous areas.
- Rugged Construction: Valve body is typically constructed from high-grade cast steel or stainless steel, offering excellent corrosion resistance and mechanical strength for marine applications.
- Rapid & Reliable Operation: Pneumatic actuation allows for quick opening and closing (typically within seconds), enabling fast emergency shutdowns and remote control integration.
- Bi-Directional Sealing: The gate valve design provides tight sealing in both flow directions, ensuring zero leakage when fully closed.
- Low Maintenance: Simple design with minimal moving parts reduces wear and tear, leading to lower lifetime costs and less downtime.
- Versatile Configurations: Available with various accessory options such as limit switches, solenoid valves, and positioners for advanced control systems.
Technical Specifications Overview:
| Parameter | Specification |
| Valve Type | Rising Stem, Parallel / Wedge Gate |
| Nominal Diameter (DN) | 50, 65, 80, 100,152, 200 |
| Pressure Rating (PN) | 1.6 MPa (PN16), 2.5 MPa (PN25), 4.0 MPa (PN40) |
| Actuator Air Supply | Standard: 4-7 bar (0.4-0.7 MPa). Other pressures customizable. |
| Temperature Range | -20°C to +150°C (Standard Seat). Extended ranges available. |
| Flange Standard | GB, ANSI, JIS, DIN, BS. Available upon request. |
Benefits for Your Operation:
- Operational Safety Compliance: Meets stringent safety requirements for hazardous area classification, protecting personnel and assets.
- Improved Process Efficiency: Enables remote and automated valve control, reducing manual labor and improving response times.
- Reduced Total Cost of Ownership: Durable construction and low maintenance design lead to long service life and minimal operational interruptions.
- Global Supply Chain Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and reliable delivery to your location worldwide.
Backed by our ISO9001 certification and nearly a decade of manufacturing expertise since 2016, Shanghai Zhibang guarantees consistent product quality and performance. Our valves have been successfully exported to diverse markets across North America, South America, Europe, Asia, Africa, and Oceania, with an annual export value demonstrating our capacity and reliability. We understand the critical needs of marine and industrial clients. Choose our Explosion-Proof Pneumatic Marine Gate Valve for a combination of safety, durability, and automated control that enhances the reliability of your fluid handling systems. Contact us today to discuss your specific requirements and receive a competitive quotation.
Frequently Asked Questions (FAQ)
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What does "explosion-proof" mean for this valve?
It means the pneumatic actuator is housed in a specially designed enclosure that contains any internal spark or explosion, preventing it from igniting the surrounding flammable atmosphere. This is crucial for safety in areas with gas, vapor, or dust hazards. -
Can this valve be used for seawater applications?
Yes, when ordered with appropriate body and trim materials like stainless steel (e.g., CF8M/316) and suitable seat materials, it is highly resistant to corrosion from seawater and other aggressive media. -
What is the typical actuation time for opening/closing?
Actuation time depends on valve size and air supply, but generally ranges from 3 to 15 seconds for full travel. Faster or slower cycle times can be achieved with different actuator sizing. -
Do you provide accessories like limit switches or solenoid valves?
Yes, we offer a range of accessories including limit switches (mechanical or proximity) for position feedback, solenoid valves for remote air control, and filter regulators for air supply conditioning. These can be pre-mounted. -
What flange standards do you support?
We commonly manufacture to GB, ANSI (ASME), JIS, DIN, and BS standards. Please specify your required flange face type (RF, RTJ, FF) and rating when inquiring. -
Is a manual override available on the pneumatic actuator?
Yes, most of our pneumatic actuators can be equipped with a manual override mechanism (handwheel or lever), allowing manual operation in case of air supply failure. -
What is the lead time for an order?
Lead time varies based on order quantity, material selection, and customization. Standard configurations typically have shorter lead times. We provide accurate timelines upon receipt of your detailed inquiry. -
Can you provide technical drawings and documentation?
Absolutely. We provide detailed 2D/3D drawings, datasheets, and operation manuals for all our valves to facilitate your engineering and installation process.
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