Product Description
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Marine Fire Valve - Definition & Function
A marine fire valve is a specially designed safety valve installed in shipboard firefighting systems to automatically or manually isolate flammable liquid flow in emergency situations. These valves are critical components required by SOLAS (Safety of Life at Sea) regulations to prevent fuel-fed fires from spreading through piping systems.
Key Features of Marine Fire Valves
1. Design Characteristics
- Fail-safe operation: Automatically closes upon fire detection (thermal fuse melts at 68-79°C)
- Positive shut-off: Metal-to-metal or soft-seated sealing for bubble-tight closure
- Remote activation: Can be manually operated from safe locations via wire/cable systems
- Fireproof construction: Certified to withstand 30-60 minutes of direct flame exposure
2. Material Specifications
- Body materials: Bronze, gunmetal, or fire-rated stainless steel (AISI 316)
- Seat materials: Graphite, PTFE, or metal for high-temperature sealing
- Class approvals: ABS, DNV, LR, BV with fire-safe certifications (API 607/BS 6755)
3. Critical Locations
- Fuel oil tank penetrations
- Bunker manifold connections
- Purifier room piping
- Engine room fuel supply lines
- Flammable liquid storage areas
Operational Requirements
Automatic Function
Thermal release mechanism activates at predetermined temperatures
Fusible links or bulbs melt to trigger spring-loaded closure
Manual Override
Local handwheel operation
Remote mechanical cable release (minimum 10m from hazard area)
Hydraulic/pneumatic actuation for large valves
Testing Protocols
Monthly operational checks (manual operation)
Annual thermal element testing
5-year pressure testing per class requirements
Comparison with Standard Valves
| Feature |
Fire Valve |
Regular Stop Valve |
| Activation |
Auto/manual |
Manual only |
| Materials |
Fireproof construction |
Standard materials |
| Certification |
SOLAS/API 607 compliant |
No fire rating required |
| Cost |
3-5× standard valve price |
Economical |
Maintenance Best Practices
Quarterly Inspections
Verify free movement of operating mechanism
Check for corrosion at thermal elements
Confirm remote cables are unobstructed
Post-Fire Procedures
Immediate replacement of activated valves
Complete system pressure test
Thermal element replacement
Record Keeping
Maintenance logs for class surveys
Valve activation history
Spare parts inventory (minimum 10% onboard)
Note: Per SOLAS Chapter II-2, all fire valves must be clearly marked with red identification plates indicating their purpose and operating instructions.
Would you like specific information about installation requirements for different vessel types?
| stem |
c3771bd or be/sus420 |
Introduction
Company
Qingdao Hongfeng Xianglong Valve Manufacturing Co., Ltd. is a professional marine valve manufacturing enterprise located in Mingcun Town, Pingdu City, Qingdao, China. We mainly produce marine valves and accessories like gate valve, globe valve, stop valve,check valve, stop-check valve, butterfly valve, ball valve, storm valve with Japanese, German, and national standards. Providing customers with high-quality and efficient products and services is our business philosophy, which we have always followed and continuously developed over the years.
The company's predecessor has been deeply involved in railway parts for 16 years, with rich processing technology and advanced processing equipment. It has an experienced professional team that can carry out specialized production from product design, mold development, product casting, processing, assembly, and testing. High quality products have won us the trust of customers, and good service has established a long-term cooperative relationship.
The company's factory has complete production and equipment, with an 8000 square meter production workshop and around 60 employees. It has a complete management team and management process, equipped with processing workshops, assembly workshops, pressure testing workshops, painting workshops, and complete valve production equipment such as lathes, milling machines, CNC machines, drilling machines, valve sealing test benches, and painting assembly lines. While ensuring internal quality, it provides customers with the shortest delivery time.
Workshop
Packaging & Shipping
FAQ
Q: Are you trading company or manufacturer ?
A: We are manufacturer in PingDu city, Qingdao city, China.
Q: What's your product range?
A: We produce marine valves, like gate valve, check valve, stop valve, stop-check valve, globe valve, ball valve, butterfly valve and accessories .
Q: What's Execution Standard?
A:JIS/GB/DIN/BS etc.
Q: What's your Strong product ?
A: Gate valve.
Q: How long is your delivery time?
A: Normally it is 3 days if the goods are in stock. or it is 35 days if the goods are not in stock, it is based on the quantity.
Q: Do you provide samples ?
A: Yes, we could offer the sample.
Q: What is your terms of payment ?
A: 30% deposit in advance and balance before shipment.
Q: What's the packing?
A: Plywood packing.
Q: Can I have my own logo on the products?
A: Yes, you can send us the drawing and we can make it.
Q: Can you produce the products based on my own drawing?
A: Yes.
Q: Which price terms can be accepted?
A: FOB,CIF etc.
Our Advantages
(1)Own production line and workshop to do all processes so can save cost and offer you competitive price.
(2)Own workshop to control schedule more flexibly.
(3)We can assure quality in every process in production line.
(4)Class Approval Certifications.
(5)Quality guarantee after sale.
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