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04/10143

Cryogenic SupportsCarpenter & Paterson are suppliers of Cryogenic Pipe Supports in threemain categories:

1) High Density Polyurethane Foam (HD PUF)2) Glass Reinforced Polyester Composite3) Hardwood.Densified Wood Blocks

The selection of one of the above forms of Pipe Support is dependanton many factors, which include: load carrying capacity, ease ofinstallation, piping contractors requirements etc.

This section includes typical details of all three types of CryogenicSupports, however due to the numerous individual requirements in themarketplace, we welcome all enquiries in connection with thesupporting of Cryogenic piping and our experienced engineers can offerguidance as to the benefits of all three systems.

1

2

3

04/10144 Cryogenic Insulated Pipe Supports

Carpenter & Paterson are suppliers of Cold Insulated PipeSupports consisting of a steel cradle containing High DensityPolyeurathane Foam inserts

“Thermafoam” is specifically formulated and moulded in singleor multi layer 180° segments with high density skins. Thedesign make-up of the insulated pipe support can becategorised as follows:-

i) "HD PUF monolithically moulded, or cut from bunstock,segments either single or multilayer.

ii) Aluminium foil vapour barrier to prevent ingress ofmoisture.

iii) Aluminised metal thin gauge protective jacket, to preventdamage to the vapour barrier.

iv) Mechanically strong carbon steel support cradle whichcontains the insulation element and allows pipe loading tobe transferred safely to supporting structures. (see page146 for typical details)

The two essential design parameters for Cryogenic PipeSupports are compressive strength and thermal conductivity,Polyurethane Foam has superior insulation properties toprevent heat loss and maintain temperatures in cold processpipelines to prevent freezing.Polyurethane Foams can be efficient over an extremely widerange of temperatures typically -196ºC to +120ºC. The densityof the foam which determines the compressive strength isgenerally between 160 kg/m3 and 320 kg/m3 and with theseload bearing properties it is evident why PUF is such a suitableinsulation material for Cryogenic Support Applications.

Polyurethane Foam is produced by mixing two liquids alongwith a blowing agent and Carpenter & Paterson using thelatest in moulding machine technology utilise CFC free blowingagents in producing monolithically moulded components with avery low isocyanurate index. Steps are machined to ensurealignment with the parent pipe insulation system.

With the manufacture of the steelwork and the PUF insulationundertaken side by side in our works, we ensure completecontrol of production progress throughout.

Cryogenic Insulated Pipe Supports

14504/10

Our Engineering Department is staffed by experienceddesigners who are able to give practical advice and assistancein the design of Cryogenic Pipe Supports.

Our Engineers upon receipt of all relevant information cancalculate and design the cryogenic supports needed for eachproject from simple shoes to complex anchors. Fullydimensioned detail drawings for each individual support areproduced for customer approval before manufacturecommences.

The moulding tools are designed on a project specific basisand they can be produced in pipe sizes ranging up to 900NBand above with insulation thickness of upto 250mm.

Independent testing is carried out to determine the thermalconductivity, the density and compressive strength of the HDPUF materials.

Our testing, calculation and design criteria are all based on:

i) Shell DEP No 30.46.00.31 - Gen document

ii) ASTM D-1621: Compressive strengths of HD PUF

iii) ASTM C-177: Thermal conductivity testing

Our Quality Systems are regularly audited by third parties andhave been fully endorsed by achieving certification inaccordance with BS EN ISO 9001.

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04/10146 Cryogenic Insulated Pipe Supports

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Resin Bonded Insulation BlocksWe are able to offer cryogenic supports manufacturedfrom a Resin Based compound capable ofwithstanding greater loads than that of polyeurathanefoam.

This material has a proven track record in Oil, Gasand Process Industries and offers an excellentcombination of Mechanical Thermal and FireResistant properties.

A compressive strength of 140 mpa is typical forthese types of supports together with a standardworking temperature range of between -190˚C to+160˚C.

As this material will accept inserts, individual blockscan be machined, bored or tapped and it is particularlysuited for use in supports which incorporate steelsections.

Typical supports incorporating this moulded materialare illustrated below.

04/10147

Hardwood Blocks/Densified WoodClose-grained hardwood such as oak, iroko or obecheare often used as load bearing insulators on lowtemperature services.

The woods are kiln dried to ensure an acceptable moisturecontent and then machined in segments according topipe diameters.

An alternative to hardwood blocks is a unique materialmanufactured from selected beech vaneers, which areimpregnated under vacuum with thermosetting synthetyicresin and then densified under heat and pressure.

The main benefit of both the above products is their highcompressive strengths coupled with their obviousmachining versatility.

There are numerous applications for both wood blockdesigns and enquiries are welcome.

Hardwood Blocks Densified Wood Blocks

PLEASE INDICATEWHICH PIC GOES

HERE.

04/10148