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Help CenterJIS F7399 Cast Steel Pneumatic Quick Closing Valve, Flange End Connection DN50 to DN300
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As a leading manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our JIS F7399 Cast Steel Pneumatic Quick Closing Valve. Engineered for demanding industrial applications, this valve combines robust construction with rapid response to ensure reliable isolation and safety in critical pipelines. Our expertise, honed since 2016 and trusted by clients across North America, Southeast Asia, Europe, and beyond, is embedded in every valve we produce. This specific model is designed to offer superior performance where fast, positive shut-off is paramount, protecting your systems from potential hazards with precision and durability.
The core value of this valve lies in its swift and dependable operation. The pneumatic actuator provides a powerful and immediate closing action upon receiving a control signal, making it an ideal choice for emergency shutdown (ESD) systems, process isolation, and other scenarios requiring fail-safe functionality. The cast steel body ensures exceptional strength and resistance to high pressures and temperatures, suitable for a wide range of media including steam, oil, gas, and water. With flange end connections conforming to JIS standards and a size range from DN50 to DN300, it offers versatile integration into existing Japanese standard or compatible piping networks worldwide.
Key Features and Technical Advantages:
- Rapid Closure Mechanism: The optimized pneumatic actuator and valve trim design enable closure times that can be customized to meet specific system requirements, minimizing spillage or exposure risk.
- Robust Construction: Manufactured from high-grade cast steel, the valve body and internal components resist corrosion, erosion, and mechanical stress, ensuring a long service life even in harsh environments.
- Reliable Sealing: Available with either metal-to-metal or soft seat (upon request) sealing, providing excellent bubble-tight shut-off and low leakage rates to meet stringent industry standards.
- Fail-Safe Design: Standard configurations include spring-return actuators that automatically drive the valve to the closed (or open) position upon loss of air supply, enhancing system safety.
- Easy Maintenance: Features such as a separable gland flange and accessible internals simplify inspection, maintenance, and part replacement, reducing downtime and operational costs.
- Versatile Actuator Options: The pneumatic actuator can be supplied as double-acting or spring-return, with various accessories like solenoid valves, limit switches, and positioners available for complete control integration.
Technical Specifications Table:
| Parameter | Specification |
|---|---|
| Design Standard | JIS F7399 |
| Valve Type | Pneumatic Quick Closing (Swing Check Type) |
| Size Range (Nominal Diameter) | DN50, DN65, DN80, DN100, DN150, DN200, DN250, DN300 |
| Pressure Rating | JIS 10K, 16K, 20K (Selectable) |
| Body Material | Cast Steel (WCB, LCB, WC6, etc. available) |
| Seat & Disc Material | 13Cr, Stainless Steel, or with Stellite Hardface |
| End Connection | Flange End, JIS B2220 / 10K/16K/20K RF Face |
| Operating Temperature | Standard: -29°C to 425°C; Low-temp/Hi-temp options |
| Actuator Air Supply | 0.4 - 0.7 MPa (Standard); Other ranges customizable |
| Optional Features | Manual Override, Position Indicator, Locking Device |
Benefits for Your Operation:
- Enhanced Safety: Provides a reliable and fast-acting barrier in emergency situations, protecting personnel, equipment, and the environment.
- Process Integrity: Ensures positive isolation, preventing backflow or unwanted mixing of media between different sections of your process line.
- Reduced Maintenance Costs: Durable materials and design minimize wear and tear, leading to fewer replacements and lower lifecycle costs.
- Global Compatibility: Built to JIS standards with flange connections, facilitating easy installation in international projects, particularly in Asian and global markets familiar with these specifications.
- Operational Efficiency: The quick response time helps in optimizing process control sequences and reducing product loss during shutdowns or changeovers.
Backed by our company's commitment to quality evidenced by our ISO9001 certification and a consistent annual export value, we have established a strong reputation in markets from Eastern Europe to Oceania. Our valves are shipped efficiently from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring timely delivery. Choosing our JIS F7399 Quick Closing Valve means partnering with a dedicated manufacturer that prioritizes reliability, safety, and customer satisfaction. Contact us today to discuss how this valve can be integrated into your system for enhanced performance and protection.
Frequently Asked Questions (FAQ):
-
What is the primary application for this quick closing valve?
This valve is primarily designed for emergency shutdown (ESD) services, pump protection, and process isolation in industries like oil & gas, petrochemical, power generation, and marine, where rapid and positive shut-off is critical to safety. -
Can this valve be customized for different pressure ratings?
Yes. While it conforms to JIS F7399, we offer it in standard pressure classes like JIS 10K, 16K, and 20K. Custom pressure ratings can be evaluated based on your specific design conditions. -
What is the typical closing time for this pneumatic valve?
The closing time depends on valve size, actuator type, and air supply. Standard spring-return actuators provide fast closure, typically within 1 to 5 seconds for most sizes. Specific timing can be engineered upon request. -
Is a manual override feature available?
Yes, a manual override device is a common optional accessory. It allows for manual operation of the valve in case of pneumatic system failure or for maintenance purposes. -
Are the flanges compatible with ANSI or other standards?
The valve is manufactured with JIS B2220 flanges as standard. For projects requiring compatibility with ANSI, DIN, or other flange standards, modifications or adaptor flanges can be discussed as a custom solution. -
What kind of maintenance does this valve require?
Routine maintenance includes periodic checking of the actuator's air supply, lubrication of moving parts (if specified), and inspection of sealing surfaces for wear. The design allows for easy access to internal components for servicing. -
Do you provide complete packages with accessories?
We can supply the valve as a standalone unit or as a complete package including the pneumatic actuator, solenoid valve, air filter regulator, limit switches, and other control accessories as per your piping and instrumentation diagram (P&ID) requirements. -
What is your lead time for an order of DN200 valves?
Lead times vary based on order quantity and specific configuration. For standard DN200 valves, typical production lead time is available upon request. We leverage efficient logistics from multiple ports to ensure prompt delivery.
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