Product Overview
The BBUAF is an ultrasonic marine growth prevention system for vessels and offshore facilities. It consists of a four-channel control module, ultrasonic transducers, connecting cables, installation adhesive and mounting accessories. The system delivers adaptive 19.5-60 kHz pulsed vibration through the hull or pipe material to help reduce the initial adhesion of algae, shellfish and other marine fouling organisms on submerged surfaces.
Flat bonded and pipe-adapter transducer configurations are available. The system can be applied to fiberglass, aluminum and steel hulls, seawater pipelines, sea chests, seawater filters, structures near propellers, offshore platforms and other underwater facilities. It is designed for continuous preventive operation and should be installed while the protected surface is clean.
System Components
- Four-channel intelligent control module
- Flat-mount or pipe-mount ultrasonic transducers
- Standard 5 m connecting cables
- Flat fixing rings or pipe adapter brackets
- Installation adhesive and mounting accessories
- Power protection components
Key Features
- Adaptive 19.5-60 kHz pulse-frequency operation
- Four-channel control module rated at 200 W
- Approx. 50 W average power consumption per transducer
- Reference coverage of up to 20 m² per transducer
- IP65 control module and IP68 transducers
- AC 100-240 V or adapted DC 12-24 V power options
- Flat bonded and pipe-adapter installation methods
- Non-penetrating installation on hull structures
- Continuous 24-hour operation
- Cable runs extendable up to 80 m
Technical Specifications
| Parameter | Specification |
|---|---|
| System purpose | Helps inhibit marine fouling on hulls, seawater pipelines, sea chests, seawater filters and other submerged structures |
| Control channels | 4 |
| Operating frequency | 19.5-60 kHz with adaptive pulse adjustment |
| Control module rated power | 200 W |
| Average power per transducer | Approx. 50 W |
| Operating voltage | AC 100-240 V; DC 12-24 V with an adapted power module |
| Control module dimensions | Approx. 304 × 218 × 105 mm |
| Control module weight | Approx. 4.2 kg |
| Control module protection | IP65 |
| Transducer protection | IP68 |
| Reference coverage per transducer | ≤20 m², depending on installation position and substrate thickness |
| Standard cable length | 5 m |
| Maximum cable length | 80 m |
| Operating mode | Continuous 24-hour operation |
| Operating temperature | -20°C to +60°C |
| Compatible substrate materials | Fiberglass, aluminum and steel |
| Standard warranty | 1 year, excluding consumables and human-caused damage |
Transducer and Mounting Options
| Configuration | Dimensions | Installation | Typical Location |
|---|---|---|---|
| Flat-mount transducer | Φ115 × 88 mm including fixing ring | Adhesive-bonded fixing ring | Flat hull sections, sea chests and other flat substrates |
| Pipe-mount transducer | 130 × 80 × 106 mm including adapter bracket | Pipe-size-specific adapter bracket | Seawater pipes, filters and cooling-water pipelines |
Operating Principle
The control module generates pulsed drive signals within the specified frequency range. The transducers convert these signals into mechanical vibration that propagates through the hull or pipe material to the submerged surface. This continuous microscopic vibration is intended to interfere with the early attachment conditions of fouling organisms and help extend the cleaning interval of the protected structure.
The system is intended for preventive anti-fouling. Surfaces with established heavy growth should be cleaned before installation and operation. Coverage depends on substrate material, structural thickness, mounting position, obstacles and the number of installed transducers.
Typical Applications
- Commercial vessels, fishing vessels, yachts and workboats
- Sea chests and seawater inlets
- Seawater cooling pipelines and filters
- Submerged structures near propellers
- Offshore wind and marine engineering platforms
- Deep-sea aquaculture cages and related seawater equipment
- Other underwater facilities exposed to marine biofouling
Installation Requirements
- Remove oil, rust, coatings and existing fouling before installation to expose a clean substrate.
- Install flat transducers with bonded fixing rings and select pipe adapter brackets according to pipe diameter.
- Mount the control module in a dry engine-room or equipment-room location.
- Keep cables at least 20 cm away from other important wiring and protect them with flame-retardant corrugated conduit.
- Keep transducers at least 30 cm away from large obstacles such as rudder bearings and stringers.
- Separate the transducers from depth sounders, fish finders and other acoustic equipment to reduce interference risk.
- Avoid installation on fuel-tank and freshwater-tank outer walls and within 50 cm of these areas.
Maintenance Recommendations
- Check control-module indicators and cable connections monthly.
- Inspect transducer fixation, sealing and fuses every six months.
- Inspect transducer surfaces and mounting locations during annual hull maintenance.
- Evaluate anti-fouling performance together with hull coating condition, operating area and local fouling pressure.
Information Required for Selection
Please provide the following information when requesting a system configuration:
- Vessel or offshore-facility type
- Hull and pipeline materials
- Areas to be protected and estimated surface area
- Seawater-pipe outside diameters and mounting locations
- Available power source and voltage
- Cable distance between the control module and each transducer
- Locations of existing depth sounders, fish finders or other acoustic equipment
- Structural drawings or photographs of the intended installation areas
The ≤20 m² coverage per transducer is a reference value. Final transducer quantity and placement should be determined according to hull structure, substrate thickness, protected areas and installation obstacles.