INSULATION JUST GOT BETTER ArmaGel HT Know-How

INSULATION JUST GOT BETTER

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ArmaGel HT Know-HowKey Installation Points - Vessles, Tanks and Spheres

2 / VESSEL, TANK AND SPHERE | KNOW-HOW

Application ServicesOur job does not end with the manufacturing and supply of the right products. We are there throughout the project execution, to ensure contractors receive the right training, follow best practice and to help with any unexpected design or application challenges that may emerge.

That’s why we continuously work in partnership with operators, EPC’s and insulation contractors around the world on developing complete solutions, offering value added services to meet and exceed our clients’ expectations, in order to ensure successful project delivery.

Invest in better with Armacell.

VESSEL, TANK AND SPHERE | KNOW-HOW / 3

Contents

04PREPARATION

04 Tools

04 Preparation & PPE

05 Fixing & Securing of

Material

23REFERENCE

23 Learning Guide

06KEY POINTS

06 Key points for installing on

equipment shell surfaces


equipment shell surfaces -

Horizontal vessel



Horizontal vessel ends



Vertical vessel



Sphere



Tank


equipment vessel head /

dome ends (flat/curved) and

sphere

13 Key points for equipment

lifting lugs

13 Key points for vessel lifting

lugs (typical examples)


support rings

CONTENT

06KEY POINTS


support rings (all in one

continuous insulation cover

method)


support rings (boxed in

method)

16 Key points for saddle

supports - (horizontal

positioned vessels)

17 Key points for leg supports

(sphere)

18 Key Points for leg supports-

(Sphere). Extent of insul

tion at leg support from

sphere shell – typical

example

19 Key points for protrusions,

stairwell connections

20 Key points for vessel nozzle

& blank flange insulation

21 Key points for applications

above 400°C

22 Damage and repair

Tools

Preparation and PPE

• Folding rule / Tape measure• Black ink marker• Dividers• Callipers• Straight edge

• Surfaces be clean, dry and free from contamination.

• Fabricate and cut material on a smooth surface – for example large work bench.

• For mass fabrication activity – pipe stands and roller sleeves can be used for ease of handling.

• All tools be fit for purpose.

• Do not use damaged insulation during handling and fabrication/application.

• In workshop locations, for good housekeeping & worker comfort an industrial type vacuum should be available.

• Protect the insulation from rain during construction and at the end of each shift.

• Where appropriate wear PPE applicable to local regulations. (Dust mask (disposable filtering half mask, class FFP3 acc. to EN 149 or equivalent)

• Retractable knife / mechanical cutting hand tool• Tin snips (for cutting of bands/wire)• Banding tensioning tool• Wire cutter



Fixing and securement of Material

• ArmaGel HT is only secured to these equipment surfaces or the underlying insulation surface using 0.5mm thick x 19mm wide stainless steel insulation banding and clips.• Stainless steel banding are installed with a maximum of 300mm centers on all insulation layers. Additional bands can be installed where required.• Industry standard welded insulation pins (min 3mm thick) and retaining clips (washers) are required for large vessels and flat surfaces subject to approval by Project Engineer / Vessel / Sphere / Tank Construction Specification. Note: Where welded pins are not permitted, during the installation of the insulation panels prior to the final securement with the stainless steel bands, temporary tensioning straps / industrial rubber bands can be used to hold the insulation in position during its construction.• Number of pins and positioning subject to size and geometry of equipment type, examples below in drawing details.

Insulation banding at 300mm centres

Welded insulation pins at 500mm x 750 centres


Key points for installing on equipment shell surfaces

l Material is applied to a tight fit around the outer equipment‘s / insulation surfaces.

l All longitudinal and circumferential seams joints shall be tightly butted with no visible gaps.

l If overlaps are applied on single or multi-layers, care should be taken to increase the sizing of insulation required on multi-layering and sizing of the outer metal jacket – overlaps will increase the final outer diameter of the insulated equipment. l Material is cut into appropriate sized insulation panels. The size of insulation panels installed be appropriate to the configuration of the equipment, location, position and manpower available to perform the task.

l For single layer applications minimum 50mm overlaps should be added in all directions of the cut insulation panels.

l For small vessels continuous insulation panels can be installed around the entire circumference surface area like a very large bore pipe.

l All longitudinal and circumference seams and joints shall be staggered on all layers.

Note: No seams or joints shall be directly in-line on multi-layer applications


Key points for installing on equipment shell surfaces -Horizontal vessel

Key points for installing on equipment shell surfaces -Horizontal vessel ends


Key points for installing on equipment shell surfaces -Vertical vessel


Key points for installing on equipment shell surfaces -Sphere


Key points for installing on equipment shell surfaces -Tank


Key points for installing on equipment vessel head / dome ends (flat/curved) and sphere

l ArmaGel HT insulation panel segments are fabricated to fit the applicable dimensions of the vessel head /Dome ends and tightly installed without any visible gaps between all seams and joints.

l The insulation panel segments shall be secured minimum 19mm wide x 0.5mm thick stainless steel bands and clips with minimum of 1 securement per segment – more added as required.

l All bands are supported and secured typically with a 6mm*-10mm* thick steel “floating ring” at the top and bottom of spheres / vessels, or 3 x 1mm thick stainless steel insulation wire (twisted to make a loop) can also be used to support the securement on vessel heads and connecting nozzles on small sized equipment.

l Thickness and design of floating ring dependent on size* and weight** of equipment* and insulation** layering.

l Additional fixings such as industry standard welded insulation pins (3mm thick) and washers can be used to support and secure the applicable insulation parts on the top / bottom of the vessel heads.


Key points for installing on equipment vessel head / dome ends (flat/curved) and sphere

Typical securement layout – Bands/Clips & Floating ringsat top and bottom of curvature of equipment.


Key points for equipment lifting lugs

l For CUI reduction and for reducing the potential for water ingress at these weak points, its good practice to insulate these items with the same thickness* as the connecting equipment shell.

l Be fully insulated with the same thickness* and type as the vessel surface insulation unless otherwise indicated in the Projects Piping / Vessel Insulation Specification / Project Engineer.

l The material is cut around the Lug in a clean, tidy way before insulating the Lug with the appropriate fabricated insulation cover as indicated in the Drawing details below.

Key points for vessel lifting lugs (typical examples)


Key points for equipment support rings

l ArmaGel HT Insulation covers for Support Rings can be fabricated to follow the contour and circumference of the vertical support ring in one continuous insulation section cover due to the flexibility of the product.

l Typically there are two insulation fabrication methods to insulate the Support Ring;- 1. the continuous rap around method or 2. the boxing in method. Options are shown in the Drawing details below.

l The insulation cover should extended onto the main insulated Equipment surface by a minimum of 100mm or as required by the Project Engineer.

l Be fully insulated with the same thickness and type as the vessel surface insulation unless otherwise indicated in the Projects Piping / Vessel Insulation Specification / Project Engineer.

l The ArmaGel HT insulation vertical support ring cover shall be secured with minimum 19mm wide x 0.5mm thick stainless steel bands & clips.


Key points for equipment support rings(all in one continuous insulation cover method)

Key points for equipment support rings (boxed in method)


Key points for saddle supports -(horizontal positioned vessels)

l For CUI and heat loss reduction - Saddle Support insulation can be extended from the insulated shell surface by minimum of 250 mm unless otherwise advised by the Vessel Insulation Specification / Project Engineer.

l ArmaGel HT Insulation parts are fabricated and installed to follow the contours of the saddle support.

l The insulation thickness applied be equal to the thickness of the connecting Equipment shell.

l If overlaps are applied on single or multi-layers, care should be taken to increase the sizing of insulation required on multi-layering and sizing of the outer metal jacket – overlaps will increase the final outer diameter of the insulated equipment.

l All seams and joints of ArmaGel HT shall be staggered by a minimum of 100mm away from the layer below on multiple layering applications.

Note: No joints shall be in directly in-line on multi-layer applications. l The insulation parts on the Saddle Support are secured with minimum 19mm wide x 0.5mm thick stainless steel bands & clips.


Key points for leg supports (sphere)

l For CUI and heat loss reduction - Leg Support insulation can be extended from the insulated shell surface by minimum of 250mm unless otherwise advised by the Vessel Insulation Specification / Project Engineer.

l ArmaGel HT Insulation parts are fabricated and installed to follow the contours of the Sphere Leg support.

l The insulation thickness applied be equal to the thickness of the connecting Sphere shell.

l If overlaps are applied on single or multi-layers, care should be taken to increase the sizing of insulation required on multi-layering and sizing of the outer metal jacket – overlaps will increase the final outer diameter of the insulated equipment.

l All seams and joints of ArmaGel HT shall be staggered by a minimum of 100mm away from the layer below on multiple layering applications.

Note: No joints shall be in directly in-line on multi-layer applications.

l The insulation parts on the Leg Support are secured with minimum 19mm wide x 0.5mm thick stainless steel bands & clips.


Key Points for leg supports - (Sphere). Extent of insulation at leg support from sphere shell – typical example

(Min) 250mm from Sphere shell.


Key points for protrusions, stairwell connections

l For CUI and heat loss reduction, all metal part protrusion that penetrate through the insulation such as but not limited too;- instrument piping, nozzle piping connections, ladder stairwell platform supports shall be insulated along its length with minimum 250mm from the surface of the equipment shell unless otherwise indicated in the Projects Insulation Specification or Project Engineer.

l The insulation parts can be secured if required with 1mm thick stainless steel insulation binding wire or stainless steel bands.


Key points for vessel nozzle & blank flange insulation


Key points for applications above 400°C

l All high-temperature insulation materials in the market have the potential to self-heat and / or display exothermic behavior when first in contact with temperatures near their maximum range – this is normal.

l To manage this self-heating behavior within an acceptable range as defined by ASTM C1728 and ASTM C411 “the installation instructions 1 to 4 below must be followed and adhered to”- as a minimum.

1. Avoid gaps in the insulation.

2. For applications above 250°C (480°F), do not use organic adhesives or tapes.

3. For applications above 400°C (752°F) apply a continuous layer of metallic foil, (minimum thickness 0.05 mm/0.002 in.) between the final two layers of the of ArmaGel HT system, taking care not to leave any gaps.

4. With valve and flange applications, pack all void spaces with ArmaGel HT to prevent a chimney effect occurring.

Design and installation method to achieve the above requirement.

l The outer surface and all insulated parts of penultimate layer of ArmaGel HT insulation is 100% over-covered with 1 x layer 0.05mm thick of pure metallic foil (NO PET type foils) - including all connecting ArmaGel HT insulated piping fittings and insulated piping penetrations. This is designed to reduce the oxygen flow through the outer insulation surface in the 1st instance as stated above.

l The metallic foil is secured with 0.3 / 0.5mm thick insulation binding wire! NO self- adhesive tapes of any type including glass re-enforced or aluminium can be used for securement under any circumstances. The metallic foil is NOT required to be vapour tight / sealed.

l The metallic foil is overlapped in all directions (longitudinal & circumference) by a minimum of 200mm, overlaps shall NOT be sealed over with any type of aluminium self- adhesive tape!

l ArmaGel HT insulated elbow fittings can be over-covered using continuous bandaging strips of metallic foil of 50 – 100mm wide depending on pipe size. The bandaging to be over-lapped by 50%. Alternatively, individual fabricated metallic segments can be installed to cover the insulated part, overlaps on segments (gores) to be a minimum of 25mm to reduce passage of oxygen flow!

l At Nozzle / pipe terminations, an outer metal jacketing cap ends is fabricated to fit the total outer diameter of the insulated piping. The cap end shall be extended onto the final layer of the ArmaGel HT insulations outer layer.

Note: The minimum thickness of the metal cap end to be (0.05 mm/ 0.002 in.)


Damage and repair

l Damage of the ArmaGel HT insulation can easily repaired if required.

Note: Extent of damage and repair where applicable shall be determined and agreed by site QA/C Engineer / Insulation Contractor

l The procedure for a repair (example) as indicated below;-

a) Measure and cut away cleanly the applicable damaged insulation with a sharp knife or scissors. Care shall be taken when cutting the insulation, so not to damage the painted vessel surface / insulation layer below where applicable.

b) The repair “cut out” size (rectangle) shall exceed by a minimum of 100mm in all directions from the damaged location.

c) Remove damaged insulation, take measurements for the replacement insulation. If required overlap can be added to the sizing.

d) Replacement insulation shall be either tightly on all seams or overlapped* over excising cut out insulation edges. (Overlaps minimum 100mm in all directions*)

e) Additional stainless steel bands can be used to secure the new ArmaGel HT insulation “patch” in position if required, to complete the applicable workscope.


Learning guide

All data and technical information are based on results achieved under the specific conditions defined according to the testing standards referenced. It is the customer’s responsibility to verify if the product is suitable for the intended application. The responsibility for professional and correct installation and compliance with relevant regulations and project specification lies with the customer. Armacell takes every precaution to ensure the accuracy of the data provided in this document and all statements, technical information and recommendations contained within are believed to be correct at the time of publication. By ordering/receiving product you accept the Armacell General Terms and Conditions of Sale applicable in the region. Please request a copy if you have not received these.

© Armacell, 2020. ArmaFlex® is a trademark of the Armacell Group.00394 | ArmaGel HT Vessel and tanks | ArmaGel | KnowHow | 092020 | GBL | EN

As the inventors of flexible foam for equipment insulation and a leading provider of engineered foams, Armacell develops innovative and safe thermal, acoustic and mechanical solutions that create sustainable value for its customers. Armacell’s products significantly contribute to global energy efficiency making a difference around the world every day. With 3,135 employees and 24 production plants in 16 countries, the company operates two main businesses, Advanced Insulation and Engineered Foams. Armacell focuses on insulation materials for technical equipment, high-performance foams for high-tech and lightweight applications and next Generation aerogel blanket technology.

For more information, please visit:www.armacell.com/armagel

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