Subsea Floater
Engineered for reliable buoyancy and durability in deep water applications. Ideal for subsea cables, hoses, umbilicals, mooring systems and oceanographic instruments.
- Depth Rating up to 6,000 m
- Positive Buoyancy from 5–300 kg
- Custom Center Bore Diameter
- Lightweight Syntactic Foam
- Corrosion-Free
Depth Rating
6,000m
Buoyancy Range
5-300kg
Material
Syntactic Foam
Center Bore
Custom
Product Overview
The Subsea Floater is a high-performance buoyancy solution manufactured from premium syntactic foam for deepwater subsea applications. Designed to deliver stable positive buoyancy under extreme hydrostatic pressure, it is widely used on subsea cables, umbilicals, hoses, mooring systems, and oceanographic instruments.
Featuring a spherical profile with a customized center through-bore, the floater can be installed directly onto cables of various diameters. Different sphere sizes provide different buoyancy ratings, while the bore diameter is precisely machined to match the cable dimensions. This design ensures secure installation, reduces cable loading, minimizes hydrodynamic drag, and improves overall system stability.
Key Features
Engineered for reliable buoyancy, durability, and long-term performance in demanding subsea and deepwater environments.
High Buoyancy-to-Weight Ratio
Provides efficient positive buoyancy while minimizing additional weight to the subsea system.
Excellent Hydrostatic Strength
High-strength syntactic foam withstands extreme hydrostatic pressure for reliable deepwater operation.
Custom Center Bore
Center bore diameter can be customized to match different cable, hose, and umbilical dimensions.
Multiple Sizes & Buoyancy Options
Available in various sphere sizes and buoyancy ratings to meet different subsea system requirements.
Low Water Absorption
Low water absorption helps maintain stable buoyancy performance during long-term underwater deployment.
Durable & Maintenance-Free
Designed for long-term subsea service with excellent durability and minimal maintenance requirements.
Available Models
| Model | Outer Diameter (mm) | Center Bore (mm) | Buoyancy (kg) | Depth Rating (m) | Weight in Air (kg) |
|---|---|---|---|---|---|
| OOT-SF-260 | 260 | 10-20 | 4-4.5 | 2500 | 5 |
| OOT-SF-320 | 320 | 15-25 | 9.5-10 | 800 | 7 |
| OOT-SF-450 | 450 | 20-40 | 15-16 | 6000 | 31 |
| OOT-SF-500 | 500 | 40-60 | 30-31 | 3000 | 34 |
| OOT-SF-580 | 580 | 50-70 | 50-52 | 2000 | 48 |
*Custom sizes, buoyancy and bore diameters are available upon request.
Size & Bore Options
Available bore diameters (mm):
Center bore diameter is manufactured according to customer cable specifications.
Applications
Oceanographic Moorings
Subsea Cable
ROV
AUV
Technical Specifications
| Item | Data | Item | Data |
|---|---|---|---|
| Material | Syntactic Foam | Outer Diameter | 260-580 mm (Standard) |
| Density | 0.35-0.7 g/cm³ | Buoyancy | 5-300 kg |
| Color | Yellow (Standard) | Depth Rating | Up to 6,000 m |
| Center Bore | Custom (According to cable diameter) | Water Absorption | < 1% |
FAQ
What is a subsea floater?
A subsea floater is a buoyancy component designed to provide positive buoyancy for underwater cables, hoses, umbilicals, mooring systems, and other subsea equipment. Our spherical subsea floaters are manufactured from syntactic foam and feature a center bore for installation onto cables or other underwater lines.
What is the maximum operating depth?
The maximum operating depth depends on the floater model and material configuration. Our subsea floaters are available for a range of water depths, with selected models designed for deepwater applications up to 6,000 meters. Please provide your required operating depth so we can recommend a suitable model.
Can the center bore diameter be customized?
Yes. The center bore diameter can be customized to match the outside diameter of your cable, hose, or umbilical. Please provide the required diameter and installation requirements when requesting a quotation.
How do I choose the correct buoyancy?
The required buoyancy depends on factors such as cable weight in water, operating depth, installation configuration, and the amount of uplift required. Provide us with your cable dimensions, submerged weight, operating depth, and required buoyancy, and we can help recommend a suitable floater size and quantity.
What material are the subsea floaters made from?
Our subsea floaters are manufactured from high-strength syntactic foam, a lightweight buoyancy material designed to withstand hydrostatic pressure in deepwater environments. The material provides low water absorption and stable buoyancy performance during long-term subsea service.
What applications are subsea floaters used for?
Subsea floaters are commonly used for oceanographic moorings, subsea cables, hoses, ROV umbilicals, AUV systems, offshore equipment, and other underwater applications requiring reliable positive buoyancy and load support.
Are the subsea floaters pressure tested?
Pressure testing and inspection can be performed according to the product specification and project requirements. Test requirements should be confirmed based on the operating depth, application, and applicable project standards.
Can you manufacture custom subsea floaters according to drawings?
Yes. Custom subsea floaters can be manufactured according to customer drawings and project requirements. Outer diameter, center bore diameter, buoyancy, depth rating, and other dimensions can be customized where technically feasible. Please send us your drawing or specifications for evaluation.
Need Custom Buoyancy Solutions?
Our engineers can customize subsea floaters to meet your project requirements.
Diameter
(OD)
Bore Size
(Custom)
Buoyancy
(5-300kg)
Depth Rating
(Up to 6000m)