JIS F7399 Marine Bronze Pneumatic Quick Closing Valve 5K/10K for Shipbuilding
Product Spotlights
Shanghai Zhibang Valve Manufacture Co., Ltd.
As an ISO9001-certified manufacturer established in 2016, we specialize in high-performance marine valves engineered for critical shipbuilding applications. Our JIS F7399 Marine Bronze Pneumatic Quick Closing Valve delivers exceptional reliability in emergency shutdown scenarios with pressure ratings of 5K and 10K. With over $1 million in annual exports to global maritime markets, we combine precision engineering with rigorous quality control to meet demanding marine specifications.
Key Technical Features:
- Corrosion-resistant bronze construction ensures longevity in saltwater environments
- Pneumatic actuation enables sub-second closure times for emergency isolation
- Dual spring-assisted mechanism guarantees fail-safe operation
- Precision-machined seats achieve bubble-tight shutoff (tested to ANSI FCI 70-2 Class VI)
- Stem bearing system reduces operating torque by 40% compared to conventional designs
Performance Specifications:
| Pressure Class | 5K (PN10) / 10K (PN16) |
| Operating Pressure | Up to 16 bar (232 psi) |
| Actuation Air Pressure | 4-7 bar (58-102 psi) |
| Closure Time | < 1.5 seconds |
| Fluid Temperature | -20°C to 150°C (-4°F to 302°F) |
Operational Advantages:
- Reduces emergency response time by 70% compared to manual valves
- Maintenance-free operation for up to 100,000 cycles
- Integrated position indicator for remote monitoring capability
- Seawater-resistant coating extends service life in ballast systems
With shipment capabilities from Shanghai, Guangzhou, Hongkong, and Beijing ports, we serve shipyards across North America, Europe, Asia, and Oceania. Our valves feature in LNG carrier fuel systems, offshore platform fire protection networks, and naval vessel machinery spaces. The ISO9001-certified manufacturing process includes radiographic testing of critical castings and final assembly verification through 150% pressure testing.
Frequently Asked Questions:
-
Q: Does this valve comply with specific classification society requirements?
A: Yes, the JIS F7399 standard meets the technical requirements of IMO SOLAS regulations and is accepted by major classification societies including ABS, LR, DNV, and BV. -
Q: What is the difference between 5K and 10K pressure ratings?
A: The 5K (PN10) rating suits standard seawater systems up to 10 bar, while 10K (PN16) is designed for high-pressure applications like fuel oil systems up to 16 bar working pressure. -
Q: Can the valve be manually operated during pneumatic system failure?
A: All our quick closing valves include a manual override mechanism with handwheel operation for emergency use. -
Q: What maintenance intervals are recommended?
A: Under normal seawater service, we recommend inspection every 2 years with seal replacement at 5-year intervals based on our accelerated lifecycle testing data. -
Q: Are customized port connections available?
A: Yes, we offer ANSI, DIN, JIS, and GOST flanges as well as specialized weld-end preparations upon request. -
Q: What is the lead time for orders?
A: Standard sizes ship in 4-6 weeks, while custom configurations require 8-10 weeks production time.
Backed by our $1.5 million annual export volume and presence across 15 global markets, these valves represent marine engineering at its most reliable. The bronze construction provides superior corrosion resistance compared to cast iron alternatives, while the pneumatic quick-action design meets the critical safety requirements of modern vessel construction. Contact our Shanghai-based engineering team today for technical drawings and vessel-specific configuration recommendations.
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