Mono Single Point Buoyancy Units

DOOWIN mono single point buoyancy units are one kind enclosed pipeline buoyancy bags. It only has one single lifting point. So it is very effective for the steel or HDPE pipelines laying work at or near the surface. Moreover, it can  work at a large angle, like the parachute type underwater lift bags. 

Vertical single point buoyancy units are made of heavy duty PVC coating fabric material comply with IMCA D-016. Each enclosed vertical buoyancy bag equip with pressure relief valves, and filling/discharge ball valves. One internal strop is used to connect the top lifting point with the bottom lifting point. In addition, we can make lifting belts from the top to the bottom to reinforce the lifting capacity.

DOOWIN make mono single point buoyancy bags with a capacity less than 5ton. As a result, if with the bigger capacity, you can choose our parachute type underwater lift bags.

pipeline installation in use
pipeline buoyancy units in use

Advantages and Specifications

Advanced design according to IMCA D016 guidance. HF welding seam technology. ISO 9001:2015 strict quality management system.  Top quality with competitive price. DOOWIN is your best partner of mono single point buoyancy units in pipeline engineering industry.

Comply with IMCA D016

Mono single point buoyancy units are designed and tested comply with IMCA D016. Safety factory is over 5:1.

Auto Pressure Relief Valves

Vertical buoyancy units equip enough pressure relief valves. It can open when the pressure reaches rated valve.

One Single Lifting Point

Mono buoyancy bags have only one single lifting point. Allow the big angle work. Easy to connect and release.

Heavy Duty PVC Material

Made from SGS certificated heavy-duty fabric, Superior abrasion resistance, UV-resistant, HF welded.

DOOWIN single ponint buoys have 1t, 2t, 3t, 5t common size. The standard color is yellow. In addition, we can design and supply upon clients’ request.

mono buoyancy units specifications
single point buoyancy bag structure

Type Certificate by Drop Test

DOOWIN vertical single point buoyancy units passed drop test type certificate by BV third party. So it has proven a factor of safety in excess of 5:1. Our vertical inflatable buoyancy units are manufactured and tested compliance with IMCA D016. Moreover, we can provide BV, ABS, LR third party certificate upon request.

mono buoyancy units drop test resultsingle point buoyancy bag drop test picture

The peak force of SPB-5 drop test is 253KN.

The peak force of SPB-3 drop test is 177KN.

Drop test BV certificatecertificate logo

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