Manifolds, PLETs, FLETs, ILTs and other similar structures are relatively complex structure comprising both straight pipe and bend sections linked to flowline anchor flanges and/or bulkheads and culminating in a connection system.
Often ball and/or gate valves are present in the structure in differing sizes depending on the combination of pipe diameters used within the structure. The pipework is contained within a steel superstructure which can add complexity to the insulation process with insulated components often close too or placed on a sliding interface with the steel work.
Both ContraTherm® C25 and C55 are ideal products for such structures. Both materials are readily applied in the temperate and humidity ranges seen in the oil and gas business with only cold temperatures presenting a challenge solved by the provision of heated facilities. Their cold curing, low shrinkage attributes offer defined thicknesses with minimised internal stress loadings that guarantee a secure joint between mouldings that are often complex in shape and loading condition. Such structures generally have painted anti corrosion coatings and both Advanced Insulation products have been qualified for use with the paints most commonly used in the market.
ContraTherm® C55 is capable of higher compression loadings than C25 and presents a better solution where an insulated component must slide along the steel superstructure as part of the design movement.
ContraTherm® C25 has been successfully applied to such structures in cold territories such as the UK and Norway, hot and humid climates such as Malaysia and the Gulf of Mexico and also in hot and remote territories such as Nigeria and Angola.