Industrial Compre Modular Foam Chain Through Mooring Buoy for Chafe Chain
Description
Chain through buoys are a type of buoy that is used to provide support and stability for mooring chains in marine applications. These buoys are designed with a hole, or multiple holes, that allow the mooring chain to pass through them. The chain is held in place by the buoy, providing support that prevents dragging or entanglement in the seabed.
Chain through buoys are commonly used in the oil and gas industry, offshore wind farms, marine construction, aquaculture, and recreational boating. They are typically made of durable materials, such as high-density polyethylene or steel, that are resistant to corrosion, UV radiation, and harsh marine environments.
One significant advantage of chain through buoys over traditional chain support buoys is that they provide increased stability and reduce the risk of damage caused by excess tension on the chain. The chain passes through the buoy, and the buoy's weight distributes the load evenly across the chain's length, reducing the strain placed on individual links.
Chain through buoys also offer a low profile, streamlined design that reduces drag and minimizes the risk of entanglement with other equipment or marine life.
In summary, chain through buoys provide a reliable and cost-effective solution for mooring chain support in various marine applications. They provide increased stability, a low profile design, and reduce the risk of damage due to excess tension.
Specifications
| No. | Material Property Requirements | Test Item | Test Method | Required Value | Test Value |
| 1 |
Polyurethane Elastomer Skin |
Hardness | ASTM D-2240 | 75-95 Shore A | 80 Shore A |
| Tensile Strength | ASTM D-412 | ≥13.8 MPA | 14.5 MPA | ||
| Elongation | ASTM D-412 | ≥300% | 400% | ||
| Tear Strength | ASTM D-624 | ≥ 32.4 kN/m | 33.4 kN/m | ||
| Flex Life (Ross) | ASTM D-1052 | ≥10000 Cycles | 12000 Cycles | ||
| Abrasion Resistance | ASTM D1630 | ≥ 100 NBS | 113 NBS | ||
| 2 |
Polyethylene Foam Core |
Density | ASTM D-3575 Suffix W | 62 kg / cu m (+/-10%) | 62 kg / cu m (+/-10%) |
| Tensile Strength | ASTM D-3575 Suffix T | ≥289 kPa | 295 kPa | ||
| Elongation | ASTM D-3575 Suffix T | ≥95 % | 97 % | ||
| Tear Resistance | ASTM D-3575 Suffix G | ≥2.2 kN/m | 2.3 kN/m | ||
|
Compressive Strength 10% deflection |
ASTM D-3575 Suffix D | ≥27 kPa | 29 kPa | ||
|
Compressive Strength 25% deflection |
≥48 kPa | 51 kPa | |||
|
Compressive Strength 40% deflection |
≥77 kPa | 82 kPa | |||
|
Compressive Strength 50% deflection |
≥110 kPa | 122 kPa | |||
| Compression Set Average | ASTM D-3575 Suffix B | 17.2 % | 17.2 % | ||
| Thermal Stability | ASTM D-3575 Suffix S |
< 0.5 % change (24 hrs at 70 deg C) |
0.37 % change (24 hrs at 70 deg C) |
||
| Water Absorption | ASTM D-3575 Suffix L | < 0.34 kg / sq m (skived) | 0.31 kg / sq m (skived) | ||
| Flammability | FMVSS302 | Pass | Pass | ||
| PPP-C-1752B | -54 deg C to 99 deg C | -54 deg C to 99 deg C | |||
| 3 |
Nylon Filament Reinforcement |
Nylon Cord Weight | ASTM D-885 | 0.280 g/m avg. | 0.280 g/m avg. |
| Breaking Strength | ASTM D-885 | 231 N avg. | 231 N avg. | ||
| Elongation (Ultimate) | ASTM D-885 | 16% avg. | 16% avg. | ||
| Tensile Strength | ASTM D-412 | ≥31 MPA | 33 MPA | ||
| Elongation | ASTM D-412 | ≥16% | 19.5% | ||
| Tear Strength | ASTM D-624 | ≥78.8 kN/m | 88.3 kN/m |
|
Body Length (mm) |
Overall Length (mm) |
Body Diameter (mm) |
Tube I.D. (mm) |
Weight (kg) |
Nett Buoyancy (kg) |
| 1550 | 2096 | 1300 | 335 | 440 | 1360 |
| 2000 | 2546 | 1300 | 335 | 480 | 1815 |
| 2000 | 2546 | 1400 | 335 | 535 | 2270 |
| 2000 | 2546 | 1520 | 335 | 585 | 2720 |
| 2000 | 2546 | 1705 | 335 | 630 | 3630 |
| 2350 | 2890 | 1750 | 335 | 750 | 4540 |
| 2350 | 2890 | 1950 | 335 | 800 | 5400 |
Features
1. Durable materials - Chain through buoys are typically made of durable materials, such as high-density polyethylene (HDPE) or steel, that can withstand harsh marine environments and resist corrosion, UV radiation, and other environmental factors.
2. Multiple holes - Chain through buoys usually have several holes to allow the mooring chain to pass through them. The holes are designed to accommodate different chain sizes and configurations for various marine applications.
3. Low profile design - Many chain through buoys have a low profile design, which makes them less prone to entanglement with other equipment or marine life and reduces drag in the water, resulting in reduced stress on the chain.
4. Increased stability - The chain passing through the buoy provides secure support and stability, reducing the risk of chain dragging or breaking due to excess tension or wave action.
5. Customization - Chain through buoys can be customized to meet specific requirements, including color, size, and custom logos.
6. Easy installation - Chain through buoys are designed for easy installation, with a simple and user-friendly installation process that requires minimal equipment and labor.
Applications
● Oil and gas industry
● Offshore wind farms
● Aquaculture
● Recreational boating
Advantages
◆ Customization: Some companies may offer customization options for chain through buoys, allowing customers to choose the color, size, and logo to meet their specific requirements.
◆ Durability: Companies may use high-quality materials, such as high-density polyethylene (HDPE) or steel, to build chain through buoys that can withstand harsh marine environments and resist corrosion, UV radiation, and other environmental factors.
◆ Innovation: Some companies may offer innovative design features that improve the performance and reliability of their chain through buoys, such as a low profile design that reduces drag and minimizes the risk of entanglement or damage.
◆ Product Range: A company's range of chain through buoys might cater to different marine applications, and various sizes and types for the different mooring chain requirements.
◆ Cost-effective solutions: Companies may offer cost-effective solutions without sacrificing the product's quality. Some companies may offer competitive pricing, bulk orders, and overall cost-effectiveness to customers.
