Marine Globe Valve
Introduction
A marine globe valve is a type of valve commonly used in the marine industry to control the flow of fluids, such as seawater or fuel, through pipes on ships or other vessels. It is named "globe" valve because of the shape of its body, which is spherical or globe-like.
Marine globe valves are used in applications where precise flow control is required, such as in fuel systems or cooling systems. They are typically made of materials that are resistant to corrosion and wear, such as brass, bronze, or stainless steel. Marine globe valves may also be equipped with features such as a locking mechanism to prevent accidental or unauthorized operation.
Feature
Marine Globe Valves are designed specifically for marine applications where reliable and durable valves are essential. Some of the key features of these valves include:
1. Robust construction: Marine globe valves are made of high-quality materials such as bronze, stainless steel, and cast iron to withstand the harsh marine environment. They are designed to be corrosion-resistant and are able to withstand high pressure and temperature.
2. Tight shut-off: Globe valves have a disk that moves up and down to regulate the flow of fluid. The disk is pressed against the valve seat, creating a tight seal that prevents leaks.
3. Easy to maintain: Globe valves are easy to maintain and repair as they have a simple design with few moving parts. They are also readily available in the market, making it easy to replace parts that have worn out.
4. Versatile: Marine globe valves are available in a wide range of sizes and materials, making them suitable for different applications such as seawater cooling systems, fire-fighting systems, and fuel systems.
5. Accurate flow control: Globe valves are designed to provide accurate flow control, making them ideal for applications where precise control of fluid flow is necessary.
6. Compact design: Globe valves have a compact design, making them ideal for use in applications where space is limited.
Overall, marine globe valves are essential components of marine systems as they ensure reliable and efficient flow control of fluids in different marine applications.
Configuration Options
Name of Parts
Material
Advantages/Disadvantages
Valve Body
Bronze
It has good high temperature corrosion resistance and oxidation resistance. It has good corrosion resistance in the atmosphere, fresh water and sea water, and the machinability is acceptable. It can be welded and not easy to braze.
Cast Steel
Cast steel has the flexibility and strong variability of metallurgical manufacturing, one can choose different chemical compositions and control methods to suit the various requirements of different projects
Cast Iron
The compressive strength and shock absorption performance of cast iron are better than those of cast steel; the liquid fluidity of gray cast iron is better than that of cast steel, and it is more suitable for casting thin-walled castings with complex structures;
Valve Bonnet
Bronze
Seawater corrosion resistant, more expensive than cast steel, cast iron material
Cast Steel
The price is higher than cast iron and lower than bronze. Has high mechanical strength and toughness. It has special properties such as heat resistance, corrosion resistance and wear resistance.
Cast Iron
Corrosion resistant, cost less than bronze and cast steel
Valve Disc
Bronze
Bronze has excellent low temperature resistance, the price is a little more expensive than stainless steel, and the seawater resistance of bronze is better than that of stainless steel
Stainless Steel
Stainless steel will not corrode, pit, rust or wear and resist high temperatures.
Valve Stem
Stainless Steel 304
Acid resistance, alkali resistance, high temperature resistance, the price is lower than 316
Stainless Steel 316
Both corrosion resistance and acid resistance are better than 304, and the price is a little higher than 304
Hand Wheel
Cast Iron
Low production cost; good craftsmanship
Specific Difference Between Us and Other Suppliers
Comparison
Product Picture of other low quality supplier
Product Picture of our factory
Other low quality supplier
Consequence
Our Factory
Result
Bronze valve core is replaced with cast iron valve core in order to reduce cost
Cast iron valve core is easy to corrode and break
Material selection is strictly in accordance with user requirements
High safety factor, reasonable structure
The manufacturer considers the cost and purchases unqualified standard bolts
prone to security incidents
According to customer requirements, using standard bolt.
Reduce the safety hidden danger and accident rate.
Packing quality is poor, there are loose packing, wool, dry, impurities and other defects
Cause packing failure, easy to produce media leakage, easy to produce valve failure.
Selection of high quality filler, there is no loose, impurities and other phenomena.
Valve sealing, wear resistance is good, not easy to produce media leakage phenomenon, valve life is longer.
To reduce costs, omit raw materials, reduce intrinsic quality, resulting in the valve body wall thin
Safety risks are left, and the thin wall is easy to break or leak the valve in high temperature and high pressure or in operation.
Strictly in accordance with the standard processing, uniform thickness, uniform material
To meet the needs of users, long service life of products
Valve cover manufacturing quality is poor, uneven thickness
The bonnet is prone to breakage, sand holes, corrosion or aging
Strictly in accordance with the standard processing, uniform thickness
Valve cover quality is good, not easy to produce pores,
List
(1) GB T584-2008 Marine Cast Steel Stop Valve
(2) GB T587-2008 Marine Bronze Stop Valve
(3) GB T590-2008 Marine Cast Iron Stop Valve
(4) GB T594-1983 Marine Forged Steel Male Thread Stop Valve
(5) GB T595-1983 Marine Bronze Male Thread Stop Valve
(6) GB 1951-2008 Marine Bronze Male Threaded Stop Valve
Specification
|
standard |
GB |
|
medium |
Fresh water, sea water, lubricant oil, fuel oil etc. |
|
Brand name |
Customer required |
|
material |
Cast steel, bronze, cast iron |
|
application |
Repair ship, shipbuilding |
|
OEM service |
available |
|
certificate |
RINA, NK, LR, KR, DNV, CCS, BV, ABS |
IACS Certificate: RINA, NK, LR, KR, DNV, CCS, BV, ABS
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