OCIMF2000 Cylindrical Chafe Chain Support Buoy for SPM Offshore System
Description
A chain support buoy is an anchoring system used in marine environments to support the anchor chain of a vessel. It typically consists of a buoyant structure that is attached to the anchor chain and provides floatation and stability to the chain, preventing it from dragging along the seabed and causing damage to marine life or the environment.
Chain support buoys are commonly used in offshore moorings, fish farming, and other marine applications where anchors are required to secure equipment, structures, or vessels in place. They come in a variety of shapes and sizes, depending on the weight and size of the anchor chain and the marine environment in which they will be used.
Chain support buoys can be made of different materials, including high-density polyethylene, steel, and foam-filled buoys. They may also include features such as reflective tape, custom labels, and weather-resistant coatings to increase visibility and improve performance.
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) |
Swivel SWL (Tonnes) |
Weight (kg) |
Nett Buoyancy (kg) |
| 1500 | 2120 | 1180 | 10 | 240 | 1360 |
| 1500 | 2120 | 1350 | 10 | 285 | 1815 |
| 2000 | 2620 | 1350 | 10 | 340 | 2270 |
| 1950 | 2620 | 1370 | 10 | 355 | 2500 |
| 2000 | 2620 | 1430 | 10 | 365 | 2750 |
| 2000 | 2620 | 1650 | 15 | 415 | 3630 |
| 2000 | 2620 | 1850 | 15 | 485 | 4540 |
| 2000 | 2620 | 2000 | 15 | 550 | 5454 |
Features
1. Durable construction: Chain support buoys are typically made of high-density polyethylene (HDPE) or other materials that are resistant to harsh marine environments.
2. Floatation capacity: The buoy's floatation capacity is its ability to keep the weight of the anchor chain and other components suspended in the water. This ensures that the chain remains stable and does not cause any damage to the seabed.
3. Stable design: The support buoy should have a stable and balanced design that keeps it upright and prevents it from tipping over due to wind, waves, or currents.
4. Easy installation: A good chain support buoy should be easy to install and secure in place. It should also be compatible with different types of chains and anchor systems.
5. Customizable features: Some chain support buoys come with customizable features such as colored bands, reflective tape, and customized labels. This makes them more visible and easier to locate in the water.
6. Weather-resistant: Chain support buoys need to be able to withstand different weather conditions, including strong winds and heavy rain. They should also be able to resist corrosion and UV radiation.
7. Compliance with regulations: Chain support buoys need to comply with applicable regulations, including those related to buoy markings, navigational aids, and offshore installations.
Applications
● Offshore oil and gas production
● Marine transportation
● Marine construction
● Aquaculture
● Recreational boating
Advantages
◆ High-quality materials: We use high-quality materials such as UV-resistant polyethylene and marine-grade steel to ensure the buoy's durability and longevity in harsh marine environments.
◆ Customization: We offer customized chain support buoys to meet unique requirements, including special sizes, colors, and customized logos.
◆ Easy installation: Our chain support buoys are designed for easy installation with a simple and user-friendly installation process.
◆ Cost-effective: Our chain support buoys provide a cost-effective solution for mooring chain support. They are designed to withstand harsh marine environments and have a long service life, reducing the need for frequent replacements.
◆ Environmentally friendly: Our chain support buoys are made of recyclable materials and have a low environmental impact.
◆ Technical support: We provide technical support and services for our customers, including on-site installation assistance, maintenance, and repair services.
