Product design, engineering and materials
The densities and composition of the modules are based on operational requirements such as hydrostatic pressure, uplift, water ingress, riser diameter, length, etc.
However, the main elements of the modules comprise microspheres and macrospheres encapsulated in a polymer syntactic foam matrix.
Operating what is probably the most advanced buoyancy manufacturing plant in the industry, Balmoral provides very high quality, consistent modules which result in low water absorption and compression throughout their service life.
In higher temperature applications the buoyancy modules incorporate convection channels.
Distributed buoyancy design features
Fastening systems
The buoyancy elements are fastened around the clamp and riser using two sets of securing straps, usually made from Kevlar. The straps are tensioned using cross bar and screw mechanisms and fitted into moulded-in recesses on the body of the buoyancy element.
Balmoral also offers a bolted fastening system.
External finishing
BOE provides finishing options of rotationally moulded polyethylene, polyurethane elastomer or GRE external skins which offer the following benefits:
• Abrasion and impact resistance
• Enhanced water ingress performance
• Marine growth resistance
• High-vis pigmentation
• Customised graphics option
