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Floatation collars

Compatt and DPT transponder buoyancy

Engineered for: Seabed

Our range of subsea floatation collars enable acoustic navigation and positioning transponders to be deployed, moored on the seabed and then recovered to the surface.


At a glance

Use it to recover seabed transponders without ROV intervention

Choice of shapes to suit application and environment

Available in 3,000, 5,000 and 7,000 metre depth ratings

Buoyancy for Compatts and DPTs

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Overview

Our range of subsea floatation collars enable acoustic navigation and positioning transponders to be deployed, moored on the seabed and then recovered to the surface.

The floats are compatible with all our transponder including; Compatt 6+, Compatt 6, AMT 6 and DPT 6. They can be used with directional and omni-directional transducer types.

Manufactured from high performance materials appropriate to the required depth rating, each float assembly comes in two halves and is clamped around the transponder using stainless steel fixings made of super duplex stainless steel.

Bright colours make sure good visibility, either when subsea and viewed from an ROV’s camera or when floating on the surface prior to recovery.

We also supply ultra low drag light bulb shaped float that provide significant reduction of the deflection caused by water currents and dramatically improves the stability of the transponder. The levels of both the deflection and stability directly affect the quality of the achievable positioning. The light bulb float therefore ensures optimum performance from the seabed installed transponders.

The ultra low drag and highly stable float further allows users to deploy transponders much higher off the seabed increasing the achievable acoustic range. This reduces the required number of transponders enabling life of field positioning without requiring complicated deflection correction methods.

Resources

Model Specification
Floatation Collar - 3,000 m Depth Rating 3,000 m
Weight in Air 60 kg
Nett Buoyancy 32.7 kg
Dimensions (Length x Width x Diameter) 595 x 445 x 445 mm
Floatation Collar - 5,000 m Depth Rating 5,000 m
Weight in Air 64.2 kg
Nett Buoyancy 32.1 kg
Dimensions (Length x Width x Diameter) 595 x 445 x 445 mm
Floatation Collar - 7,000m Depth Rating 5,000 m
Weight in Air 64 kg
Nett Buoyancy 27 kg
Dimensions (Length x Width x Diameter) 595 x 445 x 445 mm
Floatation Collar - Directional Depth Rating 5,000 m
Weight in Air 61 kg
Nett Buoyancy 35 kg
Dimensions (Length x Width x Diameter) 650 x 500 x 500 mm
Floatation Collar - Ultra Low Drag Depth Rating 3,000 m
Weight in Air 60.5 kg
Nett Buoyancy 34.5 kg
Dimensions (Length x Width x Diameter) 699 x 600 mm

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Buoyancy for Compatts and DPTs