Product Description
Marine Globe Valve - Definition & Function
A marine globe valve is a linear-motion valve designed for precise flow regulation in shipboard piping systems. Unlike simple on/off valves (e.g., gate valves), it allows fine-tuned throttling of liquids/gases (e.g., seawater, fuel, steam) while maintaining reliable shutoff.
Key Features of Marine Globe Valves
1. Design & Working Principle
- Spherical body with an internal baffle (partition) forcing flow to change direction, increasing resistance for better control.
- Movable disc/plug presses against a stationary seat to regulate flow (screwed via a handwheel or actuator).
- Stem operation: Raises/lowers the disc linearly (unlike rotary ball/gate valves).
2. Why Ships Use Globe Valves
- Accurate flow adjustment: Critical for cooling systems, fuel dosing, or steam lines.
- Positive sealing: Prevents leaks when fully closed (e.g., high-pressure steam isolation).
- Corrosion-resistant materials: Bronze, stainless steel, or duplex alloys for seawater/chemical resistance.
3. Common Marine Applications
- Engine cooling water control
- Fuel oil supply regulation
- Steam system throttling (e.g., boiler feed lines)
- Hydraulic system pressure management
Globe Valve vs. Other Marine Valves
| Valve Type |
Primary Function |
Best for Marine Use When... |
| Globe Valve |
Throttling/flow control |
Precise adjustment needed (e.g., cooling systems) |
| Gate Valve |
Full on/off (low resistance) |
Main seawater intake (minimal pressure drop) |
| Ball Valve |
Quick on/off operation |
Fuel tank isolation (fast shutoff) |
| Check Valve |
Prevent backflow |
Bilge pumps, overboard discharges |
Pros & Cons in Marine Environments
Pros:
- Excellent for frequent flow adjustments.
- Tight shutoff (less leakage than gate valves).
- Repairable without removing from pipeline.
Cons:
- Higher pressure drop than gate/ball valves (not ideal for high-flow, low-resistance systems).
- Heavier and bulkier than ball valves.
Need help selecting a globe valve for a specific ship system? Ask me about materials, pressure ratings, or installation tips!
Here is a professional introduction to JIS F7314 in English:
JIS F7314 Standard Overview
Full Title: Shipbuilding - Cast steel 20K angle globe valves.
Scope: Specifies requirements for cast steel angle globe valves with a pressure rating of 20K (20 kgf/cm²) designed for marine piping systems.
Key Features
Material: Made of cast steel (typically WCB or equivalent stainless steel for sealing).
Pressure Rating: Rated for 20K working pressure (≈20 bar).
Connection Type: Flanged ends (compliant with marine piping standards).
Design:
Angle-type globe valve (90° flow path for compact installation).
Manual operation (handwheel-driven).
Applications
Controls fluids like fuel oil, seawater, steam, and compressed air in ships.
Commonly used in engine rooms and pipeline systems.
Additional Notes
Typical sizes range from DN15 to DN300.
Often includes marine certification (e.g., ABS, DNV).
For technical drawings or procurement details, consult manufacturer specifications.
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| 1. Strict-selected materials, meet with domestic and foreign standards, reasonable structure and beautiful shape. |
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| 2. Stem has a good anti-corrosion and scratch resistance. |
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| 3. Can be used with a variety of flange pipe standard and sealing surface pattern to meet the various engineering needs and users' requirements. |
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| 4. Full range of body materials, packing and gasket can matched based on the actual working conditions and users' reasonable requirement, applied to all kinds of pressure, temperature and medium conditions. |
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| 5. For SS material valves, corrosion resistance stainless steel valve body, high hardness, strong oxidation resistance. |
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| 6. Flexible hand wheel operation, small torque, convenient switching. |
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| 7. Good sealing performance-metal hard seal, high temperature resistance of 200 |
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| Rating |
SIZE |
φd |
L |
L1 |
H |
H' |
RF Flange |
φW |
| φD |
φC |
t |
| 20K |
32A |
32 |
190 |
100 |
270 |
250 |
135 |
100 |
18 |
160 |
| JIS F 7314 |
40A |
40 |
200 |
110 |
290 |
265 |
140 |
105 |
18 |
160 |
| |
50A |
50 |
230 |
125 |
305 |
275 |
155 |
120 |
18 |
200 |
| |
65A |
65 |
270 |
135 |
345 |
305 |
175 |
140 |
20 |
224 |
| |
85A |
80 |
300 |
150 |
385 |
340 |
200 |
160 |
22 |
250 |
| |
100A |
100 |
350 |
170 |
440 |
385 |
225 |
185 |
24 |
280 |
| |
125A |
125 |
430 |
200 |
500 |
440 |
270 |
225 |
26 |
315 |
| |
150A |
150 |
500 |
225 |
550 |
485 |
305 |
260 |
28 |
355 |
| NO. |
Parts |
Material |
| 1 |
Body |
SC480 |
| 2 |
Bonnet |
SC480 |
| 3 |
Handwheel |
FC200 |
| 4 |
Disc |
SCS2 |
| 5 |
Valve seat |
SCS2 |
| 6 |
Disc nut |
SCS2 |
| 7 |
Stem |
SUS410 |
| 8 |
Screwed bonnet bush |
C3604 |
| 9 |
Seat ring |
C3604 |
| 10 |
Packing gland |
S25C |
| 11 |
Stud bolt |
SS400 |
| 12 |
Stud bolt |
SS400 |
| 13 |
Hex. nut |
SS400 |
| 14 |
Hex. nut |
SS400 |
| 15 |
Hex. nut |
SS400 |
| 16 |
Lock pin |
SS400 |
| 17 |
Split pin |
C2600 |
| 18 |
Disc lock washer |
C2801 |
| 19 |
Packing |
GRAPHITE |
| 20 |
Gasket |
NON ASBESTOS |
| 21 |
Name plate |
C2801 |
Company Profile
Workshop
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.
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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