Product Description
We support OEM and the producing capacity is big, fast shipment, professional design team for you, welcome to contact us!
The explanation of a marine drain valve is as follows:
Core Terminology
Drain valve: Standard term for valves controlling fluid discharge.
Blow-off valve: Used for pressure relief or fluid expulsion.
Discharge valve: General term for valves releasing fluids (e.g., fuel, water).
Functional Types
Self-closing drain valve: Automatically seals after discharge (common in marine systems).
Release valve: Specifically for pressure or fluid release (e.g., fuel/oil).
Emergency shut-off valve: Rapid closure for safety (e.g., emergency shut-off valve in ships).
Marine Applications
Used in fuel tanks, lubricating oil systems, and seawater pipelines.
Materials often include bronze or stainless steel for corrosion resistance.
Related Standards
Designations like JIS F7398U (Japanese Industrial Standard for marine valves).
Note: Terminology may vary by context (e.g., discharge valve vs. drain valve)






item |
value |
Application |
General |
Port Size |
F7398U 5K15-5K50 10K15-10K40 |
Warranty |
1 YEAR |
Place of Origin |
China |
|
Shandong |
Model Number |
F7398U |
Power |
Manual |
Temperature of Media |
Normal Temperature |
Structure |
self-closing drain valves |
Media |
Water |
Customized support |
OEM |
Body material |
BRONZE |
Connection |
Flange Ends |
Type |
self-closing drain valves |







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.