Product Description
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JIS F 7334 B is a Japanese Industrial Standard (JIS) that specifies requirements for marine fuel oil hose assemblies designed for use in ships and offshore applications.
Key Features of JIS F 7334 B:
Scope:
Applies to flexible rubber hoses used for transferring heavy fuel oil (HFO),marine diesel oil (MDO), and other petroleum-based fuels in marine environments.
Ensures safety against leaks, pressure surges, and harsh conditions.
Material & Construction:
Inner Tube: Oil-resistant synthetic rubber (e.g., NBR or HNBR) to prevent fuel degradation.
Reinforcement: Multiple layers of high-tensile textile or steel wire braid for burst resistance.
Cover: Weather/abrasion-resistant synthetic rubber (e.g., CR or CSM).
Performance Requirements:
Pressure Rating: Must withstand working pressures up to 1.0 MPa (10 bar) or higher, depending on class.
Temperature Range: Typically -30°C to +100°C (short peaks up to +120°C allowed).
Bend Radius: Designed for tight spaces on ships without kinking.
Testing & Compliance:
Burst Pressure Test: Minimum 4x working pressure.
Vacuum Resistance: Ensures no collapse under suction.
Flame Resistance: Some variants meet fire-retardant standards (e.g., IMO FTP Code).
Applications:
Ship fueling systems, bunkering hoses, offshore oil transfers.
Compatible with ISO 7840 and BS EN 1762 for international use.
Would you like details on specific tests or dimensions?
Note: "JIS F 7334 B" may refer to a variant/class within the standard-confirm if you need distinctions from other grades (e.g., Type A vs. B).
Introduction
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c4641 bd or be/sus420 |
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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