armaflex application uk

7/27/2019 ArmaFlex Application Uk

1/36

a p p

l i c a t

i o n m a n u a l > >

A R M A F L E X

a p p

l i c a t


A R M A F L E X

application manual


2/36

applicationmanual>>ARMAFLEX

2

'%.%2!,

Working with Armaex 3

Tools for installing Armaex 3

The correct use of Armaex adhesive 3

Wet sealing of butt joints 4

Outdoor Use of Armaex 5

Advice for insulating in refrigeration and A/C equipment 5

Insulating stainless steel pipes 5

0)0%3 !.$ &)44).'3

Insulating pipes using Armaex tubes

Cutting Armaex Tubes 7

Insulating new pipes by Sleeving -On 8

Insulating existing pipes by Snap -On 8

Insulating pipes with Armaex SelfSeal tubes 9

Multi-layer insulation of pipes 10

Using the Armaex template 10

Detailed drawings for fabrication of

- Bend with 90 angle 11

- Bend with 45 angle 11

- Segmented bend with 1 middle part 11

- Segmented bend with 2 middle parts 11

- Segmented bend with 3 middle parts 11

- Cross piece joint 11

- Y-tube 12

- Swept T-piece 12

- T-Piece 12

- Insulating coupling pipe joints 13

- Angle T-piece (in question) 13

- Pipe reducer 14

Insulating pipes & ttings using Armaexsheet

Insulating pipes with Armaex sheet 15

Insulating large pipes with Armaex sheet 15

Step-by-step guides for the fabrication of

- Two part bend 16

- Valve insulation with D-box 17

- Insulation of valve body 18

- Neck-T / Pipe-T / Valve Handle 19

- Offset angle &pipework bend angle joints 20

- Strainers, Strainer Valves &inclined seat valves 21

- Flange-Box 22

- Victaulic Couplings 23

- Concentric Reducers 24

ARMACELL UK LTD.

APPLICATION MANUAL

Pipe Supports 25

Insulating pipe supports 25

Installing Armax insulated pipe supports 25

Installing Armaload pipe supports 25

Insulating over (encapsulating) pipesupports with Armaex 26

Insulating through mounted saddlesupports 26

Install ing Armaload pipe supports sections 26

$5#43

Measure surface dimension for insulatingrectangular ducts 27

Insulating ducts with Armaex sheets 27

Insulating ducts with self-adhesiveArmaex sheets 27

Insulating duct brackets with Armaex 28

Insulating circular ducts with Armaexsheets 28

6%33%,3 !.$ 4!.+3

Insulating vessels and tanks using Armaex sheet 29

Insulating small (< 1.5m) tanks andvessels using Armaex sheet 30

Insulating big ( > 1.5m) tanks andvessels using Armaex sheet 31

!$$)4)/.!, !00,)#!4)/.!$6)#% 2%&%2%.#%3

Use of adhesive in applications involvinghot and humid environment 33

Insulation of Non-Armaex-System pipesupports 33

ReferencesIn addition to this manual Armacell providesadditional documents, freely available fromwww.armacell.com/uk (or as part of our

ArmaPlus CD). These documents contain

further detailed advice for specic applicat-ions. 34

!,, !2-!&,%8 02/$5#43


3/36

1 - General >> Working with Armaex APPLICATION MANUAL

ARMACELL UK LTD.

G e n e r a l > >

W o r

k i n g w

i t h A r m a e x

4(% #/22%#4 53% /& !2-!&,%8 !$(%3)6%

Armaex Adhesive 520

Armaex Adhesive 520 has been specially developed tobond Armaex. It joins the surfaces reliably and safelyat medium temperatures of up to +105C. The bond isresistant to weathering and aging.

Armaex Adhesive HT625

Armaex Adhesive HT625 has been specially devel-oped to bond HT Armaex insulation for medium tem-peratures of up to +150C*. When using HT Armaexonly Armaex Adhesive HT625 should be used.

* For temperatures below -50C or above +150C, please consult our

Customer Services Department.

PREPARING FOR WORK

Check condition of Armaex Adhesive. Cans of Armaex Adhesive should have been stored in a cool environ-ment wherever possible. Cans must also have beenkept free from frost.

Damage due to frost can be reversed by storing in warmconditions, or for immediate use by placing the can intoa bucket of hot water. Shelf life approx. 1 year.

1. Where installation surfaces are soiled with dust, dirt,oil or water all of these contaminants must be

removed and, where applicable, cleaned with Armaex cleaner before starting work. In addition allsurfaces to be joined must be dry before gluingbegins.

2. Pay close attention to the installation instructions onthe adhesive can. Use small cans during work so thatthe adhesive does not thicken too quickly. Rell fromlarger cans when necessary and keep closed whennot in use to avoid thickening

3. Plants must not be in operation during the installationprocess!

4. Do not use adhesive under 0C. If the adhesive is toocold it can be warmed in a bucket of hot water. Attemperatures below 5C, condensation can appear on the surfaces to be glued or the adhesive lm. If this occurs the materials can be glued only withdifculty.

Check whether this has happened by applying absorbentpaper. When working in areas with a high atmospheric humidity andhigh temperatures see Hot Climates page 33 of this manual.

5. Stir adhesive well after opening. If left to stand,heavier components in the adhesive may settle in thebottom of the can. These must be mixed thoroughlybefore use in order to effectively activate theadhesive.

3

7/2+).' 7)4( !2-!&,%8

Use good quality tools, in particular a sharp knife,fresh Armaex adhesive and a good brush.

Oval tubes should always be split on the at side.

Use clean Armaex material with no dust, dirt, oilor water on the surface, if present clean with Armaexcleaner.

Use the right dimensions! Never pull glued jointswhen sealing them, always push them together.

Never insulate plants and systems that are inoperation! Only start insulated plants after 36 hours- after this time the adhesive is fully cured.

Armanish FR paint can be applied immediately after the insulation has been installed, with a second coatof paint applied within 3 days, to provide UV protec-tion (see page 5).

4//,3 &/2 ).34!,,).' !2-!&,%8

Folding rule / tapemeasure T-Ruler

Template(printed on every

Armaex carton)

Scissors

Chalk for markingirregular shapes

Silver ink marker pen

Dividers

Brushs with short,rm bristles

Callipers Smooth spatulafor smoothingdown covering

Knifes * Sharpened pipeends for the mostcommon pipediameters

Safe edge craftknife

Paint fabric rollersfor surface gluingand smoothingdown covering

Sharpening stone Gluemaster

* A three knife set plus sharpening stone are available together as atool kit


4/36

General>>WorkingwithArmaex

ARMACELL UK LTD.

APPLICATION MANUAL 1 - General >> Working with Armaex

4

STEEL PIPES

Check that the adhesive will adhere to any rust-inhib-iting primer that has been used to protect steel pipes.

Armaex adhesive may not adhere to asphalt, bitumen,red-lead or cement surfaces.

APPLICATION

1. Use a brush with short, stiff bristles and keep clean.For larger areas a spatula or (non foam type) paintroller or the Armaex Gluemaster may be used tospeed up application.

2. Apply Armaex adhesive thinly and evenly onto bothsurfaces to be glued.

3. When adhering Armaex to other materials (e.g.metal), rst apply the adhesive to the Armaex andthen to the other clean surface.

4. The tack time for Armaex adhesives rangesbetween 3 and 10 min. (1) .The time will vary accord-ing to the grade, ambient temperature and relativehumidity. Avoid open times (2) in excess of 20 min.

(1) Tack time for NH/Armaex varies - please see special applicationadvice for NH/Armaex - available from www.armacell.com/uk. (2) The open time is dened as the period between ~ rst applyingadhesive and nally closing together the joint, seams or surfaces.

5. Allow the adhesive to tack-dry. The correct initialdrying time may be determined by the ngernail-test:touch the surface with a ngernail, if the ngernail

does not adhere to the surface and the surface itself does not feel tacky the joint may be closed. The maxi-mum adhesive force will be obtained when two tackdry surfaces are brought together.

6. The glued surfaces should be pressed together, donot stretch. Do not leave glued seams on the top of the insulation in external locations. When workingoutdoors, always turn the glued seams away from thesun.

7. When gluing joints under compression, with no gapspresent, the wet adhesive method should be applied.Pull the seam apart slightly and apply Armaexadhesive thinly and evenly with the brush to bothsurfaces and press together. No open time is neededin this case.

8. Use Armaex cleaner to clean your tools, contami-nated metal surfaces and surfaces which have hadtalc applied.

9. Curing time for Adhesive 520 / 625: 36 hours.

Note: Do not mix Armaex cleaner with Armaex adhe-sive to thin it out - warm it.

7%4 3%!,).' /& "544 */).43

1. On all cold lines and all piping equipment in aexternal location, x and secure down to the pipingsurface, Armaex tube/sheet ends with Armaexadhesive.

2. The adhesive bonding will equal the isulation thick-

ness as a minimum.

3. For the nal wet sealing of the tube/sheet, pull thecompressed butt joint apart with the nger and apply

a thin even lm of adhesive to the two butt joint edgeswith a small brush.

4. Apply rm and even pressure to the glued joint usingthe ngers and thumbs to nish.

Note: In addition all other types of Hot piping lineslocated externally, it is highly recommended to follow thesame procedures as with cold lines.


5/36

1 - General >> Working with Armaex APPLICATION MANUAL

ARMACELL UK LTD.

G e n e r a l > >

W o r

k i n g w

i t h A r m a e x

5

/54$//2 53% /& !-2!&,%8

Whenever used externally Armaex (with the excep-tion of HT Armaex) must be either painted, covered or clad.

Armanish FR paint will provide UVprotection and can be applied imme-diately after the insulation has beeninstalled, with a second coat of paintapplied within 3 days.

Normal consumption

l / m m / l wet lmmmdry lm

mm

1st coat 0.275 3.6 0.275 0.132nd coat 0.275 3.6 0.275 0.13

Total 0.550 1.8 0.550 0.26

The UV-resistant HT/Armaex canbe used for outdoor applications with-out any additional UV-protection

If additional mechanical protection or protection againstsevere weahter conditions is required Arma-Chek cov-ering systems offer a non-metallic cladding option. For installation details please see the Arma-Chek installa-tion manual.

!$6)#% &/2 ).35,!4).' 2%&2)'%2!4)/. !.$! # %15)0-%.4

Attach each end of the Armaex tube to the pipe with Armaex adhesive, and make sure the adhesive joints are rm at critical points such as anges,T-sections, elbows, supports, etc.

All connected items of equipment shall be insulatedwith equal thickness where practical.

Never insulate chilled water lines or refrigerationequipment if the sections to be insulated are too closetogether. An air gap of at least 25mm should bepresent between the chilled water line insulatedsurfaces to prevent sweating.

Provide effective protection against corrosion on sur-face of steel pipes and vessels. Armaex should notcontribute to corrosion however, due to the presenceof chloride ions in the normal building environment,it remains best practice to pre-coat the steel surfaceto be insulated using either aluminium foil or specialpaints before applying the Armaex.

).35,!4).' 34!).,%33 34%%, 0)0%3

BS 5970 gives a number of specic recommendationswhen insulating stainless steel pipes. These installa-tion practices greatly reduce the risk of stress corrosioncracking. All Armacell recommendations for installationon stainless steel pipework are intended to be in compli-ance with the procedure laid out in BS 5970.

For further information relating to the insulation of stain-less steel pipes using Armaex please see the Keytecdetailed in the other references section of this applica-tion manual.


6/36

General>>WorkingwithArmaex

ARMACELL UK LTD.

APPLICATION MANUAL 1 - General >> Working with Armaex

6


7/36

2 - Pipes & Fittings >> Using Armaex Tubes APPLICATION MANUAL

ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

T u b e s

7

#544).' !2-!&,%8 45"%3

Use a sharp knife. Keep knife at a low angle when slit-ting tube

Use sharpened off-cuts of pipes to make holes.

Always cut on the at sides of tubes.

).35,!4).' .%7 0)0%7/2+ 7)4(3,%%6% /. 4%#(.)15%

In principle, tube material can simply be slid roundbends.

However, with tight bends (such as those likely to beencountered on small bore pipes) there is a risk thatthe insulation will kink in the throat of the bend, reduc-ing insulation thickness.

In the refrigeration/air-conditioning sector the calcu-lated insulation thickness is then no longer achievedand condensation can occur on the surface of theinsulation. When installing tubes with a self-adhesiveseal there is the additional risk of compression of theadhesive lining in the bend area, which can lead toseams coming apart.

The following should be taken into account in thesecases:

If the insulation kinks and the adhesive seam is com-pressed the bends should be cut into segments to t(see page 11).

Note: Do not attempt to pull the Armaex tube along thepipe as this may cause the insulation to tear.

Always push the Armaex tube over the pipe as shown.


8/36

Pipes&Fittings>>UsingArmaexTubes

ARMACELL UK LTD.

APPLICATION MANUAL 2 - Pipes & Fittings >> Using Armaex Tubes

8

).35,!4).' %8)34).' 0)0%7/2+ 7)4(3.!0 /. 4%#(.)15%

1. With a sharp knife, slit the at part of the unslit tubealong the entire length.

2. Place the slit tube onto the clean pipe; apply Armaexadhesive to the two cut edges with a thin even lm of adhesive using a short bristle brush. Apply theadhesive at 200mm intervals , along the tube length.

3. Allow the adhesive to touch dry, test with the nger-nail.

4. Free the seams from the pipe where applicable, linethe edges together and press the seam detail withrm even pressure to nish.


9/36


ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

T u b e s

).35,!4).' 0)0%3 7)4( !2-!&,%8 3%,&3%!, 45"%3

Clean all dust, dirt, oil and water frompipework using Armaex cleaner where necessary. Install Armaexwhen ambient temperature is between+10 and +35C.

Open pre-slit Armaex and snap ontopipe (the release paper is still protect-ing the self-adhesive strip)

Adjust tted Armaex to ensure slit iseasily accessible.

Locate the end of yellow releasepaper for the self-seal strip.

Remove the yellow protection pa-per strip on both sides , by draw-ing it away from the insulation.Please note: remove protective re-lease paper strip from both sides!

Close the slit seam and squeezetogether with rm pressure, to ensurea permanent seal.

Push the Armaex along the pipe us-

ing a circular motion. Do not pull theinsulation.

Using a circular motion, push the

Armaex around bends. Do not pullthe insulation.

Seal all joints with Armaex Adhesive.

Do not stretch when sealing joints.

Note: In principle, tube material can simply be s lid over bends. However, with tight bends in pipes (small radius) there is a risk that theinsulation will kink in the throat of the bend, reducing insulation thickness.

In the refrigeration/air-conditioning sector the calculated insulation thickness is then no longer achieved and condensation can occur on the surface of the insulation.

When installing Armaex SelfSeal tubes there is the additional risk of compression of the adhesive lining in the bend area, which canlead to seams coming apart.

The following should be taken into account in these cases: If the insulation kinks and the adhesive seam is compressed the bendsshould be cut into segments to t (see page 11).

ca 20 cm

9

+35

+10

C

C


10/36


ARMACELL UK LTD.


Multi-layer insulation for at surface

In the case of single and multi-layering applicationsadhesive is applied with all-over adhesive coverage

to all contacting surfaces. DO NOT apply only spots or strips of adhesive.

53).' 4(% !2-!&,%8 4%-0,!4%

The fabrication of bends and tees using Armaex tuberequires tubes to be cut to different angles. In order tomake this process easier and quicker, the Armaex tem-plate is provided on every box of Armaex.

1. Place a copy of the Armaex template face up on atable or worktop.

2. Line a tube of Armaex across the template parallelalong the horizontal base line.

3. Select the required angle cut from the template andcut along this line.

Additional copies of the Armaex template on hardPVC sheet are available on request (contact your local

Armacell representative for more information).

10

-5,4) ,!9%2 ).35,!4)/. /& 0)0%7/2+

Staggering on pipe-work: cross section view

The inside diameter of the second oversize tube(where applicable) should be selected according to themaximum outside diameter of the rst layer.

Staggering on pipe-work: longitudinal view

Yellow lines indicate glued seams

Important: Stagger all joints and seams

If the outer diameter of the rst insulating layer is above114mm, we recommend that the second layer be madewith sheet, since this can be adapted exactly to the out-side diameter of the rst layer.The ends of the tube or sheet of the second layer shouldbe glued to the under layer of Armaex.

Note: For pipework >500 mm O.D. please see page 15Armaex Adhesive and its use on large bore pipeworkof this manual.

Multi-layer insulation for pipework > 500 mm O.D.

In the case of double-layer insulation the rst andsecond layers should be glued over the entire sur face. DO NOT apply only spots or strips of adhesive.

The butt and longitudinal seams of the second layer

must always be positioned offset to the rst layer.The Armaex surfaces of the rst layer should beclean, dry and free from contamination. Armaexcleaner can be used when oil or grease are present

Caution : Ensure that the underlying glued seamshave cured for 36 hours, before using the Armaexcleaner.

Yellow lines indicate glued seams

Template is printed on everyArmaex tube carton


11/36


ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

T u b e s

11

"%.$ 7)4( !.',%53).' !2-!&,%8 45"%

45

Note: Yellow lines indicate where cuts are to be made. For correct angle

measurements please use the Armaex template located on each tube

box.

"%.$ 7)4( !.',%53).' !2-!&,%8 45"%

22.5

1/3 *

* The details to achieve the 45 angle are approximate values!



box.

3%'-%.4 "%.$7)4( -)$$,% 0!24

53).' !2-!&,%8 45"%



box.

22.5

3%'-%.4 "%.$7)4( -)$$,% 0!24353).' !2-!&,%8 45"%



box.

3%'-%.4 "%.$7)4( -)$$,% 0!24353).' !2-!&,%8 45"%



box.

#2/330)%#% */).4

53).' !2-!&,%8 45"%


measurements please use the Armaex template located on each tube box.

11,25

Consists of two 90 angle pieces


12/36


13/36


ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

T u b e s

13

).35,!4).' #/50,).' 0)0% */).43

Method 1: Oversized 90 bend

The tting cover is made from tube, the bore of whichis the O.D. of the incoming tube. Provide a minimum

25 mm overlap at each side. The tting may be madeup using any of the methods described on page11. Slitin the throat, apply adhesive to seams, t when tack dry.Wet seal both over-lapping contact surfaces.

1. Push the Armaex tube as far as the pipe tting.

For chilled water and refrigeration pipework securethe bore of the tube to the pipe with adhesive. Theadhesive band to be the same width as the insulationthickness.

2. The tting cover is made from tube the bore of whichis the O.D. of the incoming tube. Provide a minimum25 mm overlap at each side. The tting may be madeup using any of the methods described on pages 11.Slit in the throat, apply adhesive to seams, t whentack dry. Wet seal both over-lapping contact sur-faces

Method 2: Smooth nish 90 bend

1. The tting cover is made from tube material, the boreof which corresponds to the maximum outsidediameter of the screwed tting. Provide at least a38mm overlap beyond the end of the tting on eachside.

2. For pipes up to 35mm, cut two wedge-shaped

pieces at 180 to each other, from top and bottomcentres, at each end of the tting. For large bore

tubes cut four wedges, one at each 90 around thecircumference.

The wedges should taper back to the points wherethe tting would start and be sized so that the bore of the Armaex reduces to the O.D. of the incomingpipe. Glue the seams on the reducing sections.

3. Slit in the throat, apply adhesive, allow to tack dry,then t. To complete, wet seal butt joints with Armaexadhesive.

!.',% 4 0)%#% /&& 3%4 53).'!2-!&,%8 45"%

45



box.

1. Make a 45 cut as shown above



box.

2. Use the piece of the tube with the 45 and mark a22.5 angle and cut off as displayed above.

3. Chamfer the inside of the tube where it touches theinsulation around the straight pipe

4. Wet seal all seams.


14/36


ARMACELL UK LTD.


14

PIPE REDUCER USING ARMAFLEX TUBE

Pipe reducer to be insulated

Cut out segments and glue seams with Armaexadhesive

Cut reducer to size - allow compression of 5mm ateach end. Slit tting on the at side

Install and glue seam and butt joints


15/36

2 - Pipes & Fittings >> Using Armaex Sheets APPLICATION MANUAL

ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

S h e e t s

15

I .35,!4).' 0)0%3 7)4( !2-!&,%8 3(%%4

Armaex tubes are available for pipe with outer diam-eters up to 114mm. Larger pipes, ducts and tanks mustbe insulated using Armaex sheet.

It is often advantageous to insulate smaller pipesusing Armaex sheet, even when correctly dimensionedtubes are available. Care should be taken to ensure thatthe stresses in the seams, caused by the bending in thesheet, do not become too great.

These stresses rise as the insulation thickness increas-es and as the pipe diameter decreases. Please consultthe table below to gauge the applicability of differentthicknesses of Armaex sheet (recommendations may

vary for HT/Armaex and NH/Armaex).The ambient temperature during installation will also im-pact on the levels of stress likely to be encountered.

For advice on installation Armaex sheet in ambienttemperatures 5C please see please see table below.

SheetThickness

Pipe Outer Diamter / mm

88.9 114 139 406

9 mm

13 mm

19 mm

25 mm32 mm

50 mm

(Recommendations may vary for HT/Armaex and NH/Armaex. pleasesee special application advice - available on www.armacell.com/uk)

!2-!&,%8 !$(%3)6% !.$ )43 53% /.0)0%7/2+ -- / $

Armaex adhesive must be applied to all seams and joints on tube and sheet fabrications up to 500 mm O.Dpipe size, at each tube and sheet end Armaex shall be

adhered to the pipe.In addition

when insulating horizontial pipework with anO.D. > 500 mm adhesive should also be applied to of the pipe surface and the facing Armaex sheetsurface in order to prevent bellowing. The picturebelow illustrates the area which should be coveredusing adhesive.

When insulating vertical pipework , all-over ad-hesive coverage must be applied to both to thepipework and the facing Armaex sheet regardless of pipe outer diameter.

For temperatures lower than -50C please refer tospecial application advice Insulating low temperaturelines

) .35, !4). ' , !2 '% 0)0%3 7)4( !2-!&,%83(%%4

1. Determine the circumference of the pipe.Important: Always measure with a strip of Armaexof the thickness to be used for the insulation.Warning: Do not stretch the strip.

2. Cut Armaex sheet to the required size - apply Armaex adhesive to the cut surfaces in a thin layer,allow to touch dry.

3. Press together at the ends and then in the middle.Close the entire seam starting from the middle.Note: In order to prevent the seam re-opening ensurethe adhesive has been fully applied to the edges of the xing seam and ensure the correct amount of adhesive has been applied.Check the open time of adhesive to ensure it is still tfor use.


16/36

Pipes&Fittings>>UsingArmaexSheets

ARMACELL UK LTD.

APPLICATION MANUAL 2 - Pipes & Fittings >> Using Armaex Sheets

16

47/ 0!24 "%.$ 7)4( !2-!&,%8 3(%%4

Establish the inside radius, r, by dropping a perpendicu-lar line to meet a horizontal line from the outside of thetwo welds. The point where these two lines intersectgives the origin for the radius, r. This is the throat ra-dius.

Measure in a trimming allowance equal to the thicknessof insulation being used along both vertical and horizon-tal edges then transfer r to the sheet as indicated.

Determine the circumference of the pipe using a strip of Armaex of the thickness to be installed.Note: Do not stretch

Halve the pipe circumference and transfer this dimen-sion to the Armaex sheet.

Mark out the two arcs from the intersection of the trimlines.

r = inside radius of bend c = half of pipe circumferencet = insulation thickness (in mm)d = 1/4 pipe diameter

Cut out the rst half-section of the elbow.

Use the rst half- section as a template to cut out thesecond half-section of the elbow.

Place the sections together with the rough surfaces in-wards. Apply Armaex adhesive to the outer edges.

Allow the adhesive to tack dry (ngernail test) thenpress the two sections together at one side to make ashort seam.

Next, press the opposite sides together, also making ashort seam. Repeat alternately closing 50-75mm at atime on each side, working towards the centre.

Press the remainder of the joint rmly together.

Turn the assembly over and press the seam rmly to-gether from the inside, so that a good adhesive joint isachieved across the entire wall thickness.

Apply Armaex adhesive to the inner joint edges.

Place the insulation cover over the pipe bend. Allow theadhesive to tack dry then press the joint faces rmly to-gether.

Wet seal jointing details with adhesive, tted under slightcompression, to complete the bend.


17/36


ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

S h e e t s

17

Use a strip of Armaex (used thickness) to determinethe circumference around one end panel (including thetop panel).

Mark measurement L and circumference out and cut thebody panel to size. Apply Armaex Adhesive to the bodypanel end and the body panel edges as shown.

Gently roll the body panel edges around the end panelsuntil the cover panel resembles a box.

Fix down the square 90 edge as shown. Ensure theedge is in-line and neat. Continue to x all edges in thisway.

Cut holes for the insulated piping connections on each

of the end panels and a nal cut-out for the valve spindleconnection at the top.

Split the box into two halves and t around the valve.

If required the tting cover can be slit through three quar-ters of the way round the fabrication cover and snappedover the tting - with adhesive applied to all xing seamdetails as stated.

To nish, apply Armaex adhesive to the xing seams,allow to touch dry and x the seams together.

Vapour seal the connections (joints) to the linear insu-lated pipes using Armaex adhesive.

Note: For external installations, weather-seal aroundthe valve spindle connection cut using Arma-Chek blackmastic.

).35,!4).' 6!,6%3 7)4( $ "/8 -!$% /&!2-!&,%8 3(%%4

Establish the following measurements:

L = length of valve + 2 x thickness of insulationH = height of valve + 2 x thickness of insulation

W = (diameter) + 10mm

Mark out and fabricate 2x end panels and 1x top panelusing the measurements made in the previous step.

Cut cleanly using a small sharp knife.

Apply Armaex adhesive along the edges as indicated.

Note: The glue line must be as wide as the thickness of the Armaex in use.

Glue the top edges of the end panels and the top paneledge.

Fix down the end panels to the top panel making surethe edges are in-line

Recommended method


18/36


ARMACELL UK LTD.


18

6!,6% ).35,!4)/. 7)4( !2-!&,%8 3(%%4

Small bore heating and plumbing valves or stopcocksmay be insulated using oversized tube sections.The following section gives the general techniques for insulating larger valves and gate valves.It is recommended that the valve body is packed withstrips of Armaex insulation stuck onto the valve bodywith Armaex adhesive.

Insulate the pipe as far as the ange. Where applicable,allow for bolt removal.

Determine theb = circumference of insulated piped = depth of ange ring

Mark out and cut a strip. Adhere both ends and applyaround the ange ring (skin side of Armaex should facetop).

Measureh = height between the outer faces of the two rings.a = diameter of spindle neckc = circumference of the rings

Important: Always measure with a strip of Armaex

of the thickness to be used for the insulation. Do notstretch the strip.

Transfer height (h),circumference (c) and diameter of

spindle neck (a) to the Armaex sheet and mark on thecut outs for the spindle neck.

Apply a thin coat of Armaex adhesive to all xing seamsof the valve cover.

Allow to tack dry (ngernail test), t, then press together rmly.

Note: The valve body should always be insulated after the insulated pipe has been completed.

Traditional method


19/36


20/36


ARMACELL UK LTD.


20

Apply Armaex adhesive to the longitudinal seam, thento the connecting seam.

The insulation is now complete.

/&&3%4 !.',% 0)0%7/2+ "%.$ !.',% */).43

The following illustrations show the various stages of work when insulating a mitre angle or bevel joint in apipe. The procedure when insulating a right angle pipe

joint is effectively the same.

Determine the circumference of the pipe (c).

Important: Always measure with a strip of Armaex of the thickness to be used for the insulation.Do not stretchthe strip.

Measure the outer height (B) and the inner height (A) of the mitre joint.

Transfer the circumference to the Armaex sheet andmark in the centre line.

Transfer the outer and inner height to the Armaex

sheet.

Measure the half-circumference using dividers and markout 3 arcs.

Join the arcs with a continuous line.

Cut along the line. When repositioned by 180, the up-per and lower sections produce

the two parts of the mitre joint.


21/36


ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

S h e e t s

21

342!).%23 342!).%2 6!,6%3 ).#,).%$3%!4 6!,6%3

The work involved in insulating a strainer valve or an in-clined seat valve is similar (some measurements need tobe extended) except that an end disc may be required.

Insulate the pipe as far as the ange.

Determine theb = circumference of insulated piped = depth of ange ring

Mark out and cut strip. Adhere both ends and applyaround the ange ring (skin side of Armaex should face

top).Note: It is often desirable to apply strips of Armaex di-rectly to the strainer at this point. Packing out in this waycan add additional strength to the tting cover and canreduce the impact of shrinkage at low temperatures.

h = Measure the distance over the outer faces of the

two Armaex rings you have positioned next to theanges.

a1 = Measure the distance from the strainer to the outer face of the lower ring

a2 = Measure the distance between the strainer and theouter face of the upper ring

e = depth of strainer

c = Circumference of the rings.

Important: Always measure with a strip of Armaex of the thickness to be used for the insulation.

Warning: Do not stretch the strip.

Transfer these measurements to the Armaex sheet andmark the cut-out required for the strainer.

Cut the sheet and attach the insulation to the strainer body using Armaex Adhesive.

Cut a ring of Armaex with inner diameter equal to the

outer diameter of the insulated offset part of the strainer. Attach this ring at the end of the insulated section asshown using Armaex Adhesive.

Determine the

a = shortest distance from the ring of Armaex to theinsulation around the strainer body.b = longest distance from the ring of Armaex to the

insulation around the strainer body.d = 1/4 diameter of the insulated valve body

Using the circumference of the offset section of thestrainer prepare a sheet of Armaex.

Cut the remaining section of sheet

Chamfer the sheet away where it is to touch the insula-tion around the strainer body.


22/36


ARMACELL UK LTD.


22

&,!.'% "/8%3

The following section gives the installation techniquesfor insulating anges.On chilled water or refrigeration applications it is advis-able to pack the gaps between the nuts with strips of

Armaex insulation.

Using a pair of callipers, determine the diameter of theange face. Please add 10mm to this measurement.Measure the length of the ange (incl. Bolts) and add2x the insulation thickness of the used sheet. Whereapplicable allow for bolt removal.

Transfer these measurements to a piece of Armaexsheet. Mark out two concentric circles with dividers. Re-peat on a second piece of sheet. Cut out two Armaexrings.

Determine the circumference of the disc.

Roll the body panel up and a round the the end discs,do not stretch during application. Check alignmentthroughout.Place the edge to the a joining seams edge opposite.

Using a small sharp knife cut out for the insulated pipediameter.

To nish t the two halfs of the ange box around theange and wet seal all seams and joints to the insulatedpipe branch.

If required the tting cover can be snapped over thetting, by only cutting the insulation cover half waythrough.


23/36


ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

U s i n g

A r m a e x

S h e e t s

23

6)#4!5,)# #/50,).'3

1. Insulate pipes up to the coupling.

2. Determinedc = diameter of coupling + 2 x insulation thicknessh = height of srews + 2 x insulation thickness

L = length of coupling3. Using of dc (diameter coupling + 2 x insulation

thickness) as a radius transfer a circular arc to the Armaex sheet and mark a horizontal centre line.

4. From the centre of the line mark the width of thecoupling.

5. At both ends mark out the height of the screws plus2x insulation thickness at a 90 angle to the centreline.

6. Connect the four endpoints and the circular arc witha tangent so that a oval like disc is built.

7. Determine the diameter of the insulated pipe andmark it on the Armaex sheet.

8. Cut out this disc and use as a template to create asecond identical disc.

9. Adhere both discs immediately next to the coupling

as shown.

10. Determine the circumference of the disc andmeasure the distance over the outer faces of the two

discs.

Transfer these measurements to a sheet of Armaex.

Important: Always measure with a strip of Armaexof the thickness to be used for the insulation. Do notstretch the strip.

11. Cut this section and adhere over the Armaex discsaround the coupling.


24/36


ARMACELL UK LTD.


24

#/.#%.42)# 2%$5#%23

Determine the following measurements

h = height of the reducer, incl. both weldsd1 = diameter of larger pipe + 2 x insulation thicknessd2 = diameter of smaller pipe + 2 x insulation thickness

Mark out the Armaex sheet with a centre line .

d1 and d2 are marked off at each end, as shown, togive points a,b,c and d (yellow markings show meetingpoints).

Distance between the lines d1 and d2 is height h.

Extend the lines d--a and c--b to meet at th apex pointwhich is on the extension of the centre line.

From the apex point strike two arches through a-b andd-c.

Determine the circumference of the c1 (large pipe) andc2 (small pipe) .

Important: Always measure with a strip of Armaex

of the thickness to be used for the insulation.

Warning: Do not stretch the strip.

Transfer the two circumferences by using the two stripsused to measure the circumferences and mark the nal

dimension of the insulation of the reducer.Cut out the reducer piece with a sharp knife (yellow areaindicates the cutting lines)

Apply a thin coat of adhesive to the edges to be joined,allow to tack dry. Press togehter rmly at one end, thenat the other end and complete the joint.

Complete insulation by insulating the pipes on either side of the reducer and wet seal both butt joints.


25/36

2 - Pipes & Fittings >> Insulating Pipe Supports APPLICATION MANUAL

ARMACELL UK LTD.

P i p e s

& F i t t i n g s > >

I n s u

l a t i n g

P i p e

S u p p o r

t s

25

).35,!4).' 0)0% 3500/243

Where Armaex is installed, the use of Armax or Armaload pipe supports are the preferred solution for the prevention of ice and condensation on cold instal-lations. However, when Armax pipe supports are notselected, the following instructions are imperative:

Ensure that the Armaex is tted tight to thesupport, with no air gaps present and vapour sealedwith Armaex adhesive.

Install Armaex self adhesive tape to the butt jointwhere the Armaex and the support meet. Ensure thesurface of the butt joint is free from dust before install-ing the Armaex tape.

).34!,,).' !2-!&)8 ).35,!4%$ 0)0% 3500/243

Armax pipe supports are sections of Armaex with loadbearing PUR/PIR inserts and an aluminium outer shellcladding.

Note: Select the correctly dimensioned Armax pipesupport (min. insulation thickness of tube).

Use a standard pipe support bracket around the outer aluminium shells.

Install the Armaex insulation on either side of the Arma-x pipe support. Wet seal the butt joints with the Armaxpipe support using Armaex adhesive.

Note: Ensure that the pipe insulation is installed under slight compression.

).34!,,).' !2-!,/!$ 0)0% 3500/243

Armaload pipe supports are sections of high densityelastomeric insulation with no outer aluminium shell.

Armaload pipe supports are suitable for use on heating,hot water and domestic cold water pipes.

Note: Contact Armacell customer services beforeinstalling Armaload pipe supports on chilled water andcold pipes.

Note: Ensure that the pipe insulation is installed under slight compression.


26/36

Pipes&Fittings>>

InsulatingPipeSupport

ARMACELL UK LTD.

APPLICATION MANUAL 2 - Pipes &Fittings >> Insulating Pipe Supports

26

).35,!4).' 4(2/5'( -/5.4%$ h3!$$,%v3500/243

Insulate throughout continuously using Armaex tube/ sheet. Where the mounted saddles are located asshown, install two half (galvanized) metal sleevesaround the insulated pipe.Note: 1 - 1.5mm thick galvanized sheet will be suitable.If using metal sheet with a highly reective, low emis-sivity, surface the insulation thickness may no longer besufcient to prevent condensation.

).34!,,).' !2-!,/!$ 0)0% 3500/243%#4)/.3

Armaload is a high density load bearing grade of

Armaex in the form of a one metre long, half round sec-tion. It is designed to be used as a load bearing insertbetween overhead support systems, such as unistruts,and banks of small bore copper pipes insulated with

Armaex.

Use only with copper pipes up to 54mm O.D.

Suggested hanger spacing:

Outer pipe - mm Distance of hangers

35 3 m

42 2 m

54 1.5

Some compression will occur on both the Armaloadand the Armaex, but this is acceptable and has beenallowed for in the design principal.

).35,!4).' h/6%2v %.#!035,!4).' 0)0%3500/243

On cold lines pipe supports must be insulated to preventcondensation. If no insulated pipe supports have beenspecied the following approach should be followed asa minimum precaution.

Note: It is best practice to always have an insulated pipesupport such as Armax or Armaload installed.

1. Install the Armaex as close to the xing bracketas possible. Seal the ends of the tube to the pipe with

Armaex adhesive.

2. With a large off-cut of Armaex tube, core out a smallhole to allow for the oil thread support of the bracketand slit with a small sharp knife along the at face of the tube.

3. Place the Armaex cover over the support area, markand cut the true circumference of the cover.

Fix and vapour seal all seams and joints in and aroundthe attached insulation using Armaex adhesive.

Note: Armaex 3mm Insulating self adhesive tapecan be applied 50-100mm along the attached oil

thread support.


27/36

3 - Ducts >> Insulating Ducts with Armaex Sheet APPLICATION MANUAL

ARMACELL UK LTD.

D u c t s > >

I n s u

l a t i n g

D u c t s w

i t h A r m a e x

S h e e

t

27

-%!352% 352&!#% $)-%.3)/.3 &/2).35,!4).' 2%#4!.'5,!2 $5#43

Measure surface dimensions and cut Armaex sheetto size. Note: Add 5mm so that material is tted under compression.

a = width of duct + 5mm

b = length of duct + 5mm +thickness of insulation

c = width of duct + 5mm +2x thickness of insulation

).35,!4).' 2%#4!.'5,!2 $5#43 7)4(!2-!&,%8 3(%%4

Clean all surfaces using Armaex cleaner to removegrease, oil, dirt etc. and cut sheets to size

Spread a thin lm of adhesive onto the metal surfaceand then onto the Armaex sheet.

When the adhesive is tack dry (ngernail test) place Armaex sheet in position and press rmly to achieve agood bond. Continue, applying Armaex adhesive toboth surfaces, including the Armaex edge, and allowto tack dry before pressing rmly into position.

Note: Remember to roll the sheet down into positionalong the insulated edges.

The cut sheets should be positioned so that there is a 5-10mm overlap (for compression). Do not apply adhesiveto this area..

When pressed together the material is under compres-sion and is not stretched.

Apply an additional wet seal along the butt joints.

).35,!4).' 2%#4!.'5,!2 $5#43 7)4(!2-!&,%8 3%,& !$(%3)6% 3(%%4

Clean all surfaces using Armaex cleaner to removegrease, oil, dirt etc. and cut sheets to size

Peel back release paper & line up sheet. Press rmly toactivate adhesive.

Align material and continue to correctly line up, press-ing rmly whilst slowly removing release paper. At butt

joints allow 5mm overlap for compression

For additional information and more details please seeapplication guide Armaex on ductwork

Insulate acc. to drawing, this is

especially important for external

duct work.


28/36

Ducts>>InsulatingDuctswithArmaexSheet

ARMACELL UK LTD.

APPLICATION MANUAL 3 - Ducts >> Insulating Ducts with Armaex Sheet

28

).35,!4).' $5#4 "2!#+%43 7)4( !2-!&,%8

Insulating duct brackets by using Armaex tubes

For a cost effective solution with a high-end nish, Armaextube can be used to over-cover raised ductwork-connect-ing brackets.

1. Using unslit Armaex tube with equal thickness as the

attached main duct branch; split with a sharp knife thetube into two equal halves.

2. Measure the four insulated sides of the duct body.

3. Using a mitre box, or the Armaex template, cut the Armaex as shown with a 45 degree angle. From thethroat measurement, determine the length of the ttingand cut an opposite 45 angle as shown.

4. Continue to cut the other 3 sides of the tube picturefame tting.

5. Using Armaex adhesive, apply a thin even lm with abrush to the three sets of 45 angles.

6. Allow the adhesive to touch dry, x the angles together,applying rm even pressure for a good bond.

7. Place the picture frame Armaex tube around the duct-ing, apply the adhesive to the nal angle cuts and bondto complete the xing of the picture frame.

8. To nish, wet seal around the picture frame ttingcover.

Insulating duct brackets by using Armaex sheet

Single strip method - Four single stripsapplied to the insulation.

Three-sided box method - Built up sidestrips with over-covering body strips.

Continuous single strip method - Com-plete single continuous strip.

In all situations the fabricated Armaex insulation bracketcovers have the same thickness as the attached ductworkconnections. For a continuous vapour sealed system, allinsulation covers shall be securely xed and wet sealedwith Armaex adhesive.

).35,!4).' #)2#5,!2 $5#43 7)4( !2-!&,%83(%%4

For circular ducts proceed as described in section Insulat-

ing large pipes with Armaex sheets & Armaex Adhe-sive and its use on pipework > 88.9 MM O.D. on page 15of this manual.

For additional information and more details please seeapplication guide Armaex on ductwork


29/36

4 - Vessel & Tanks >> Insulating with Armaex sheet APPLICATION MANUAL

ARMACELL UK LTD.

V e s s e

l a n

d T a n

k s > > I n s u

l a t i n g w

i t h A r m a e x

S h e e

t

29

).35,!4).' 6%33%,3 !.$ 4!.+3 7)4(!2-!&,%8 3(%%4

Draw up a cutting schedule

Work out the most efcient way of covering the surfacesusing Armaex sheet (2 x 0.5 metre) or continuous roll(1m width and length 4-15m dependent upon the thick-ness).

Armaex sheet layout for large vessels and tanksNote: ensure that sheet joints are staggered.

Compression joints

Provide an allowance of an additional 5mm on alldimensions when cutting from Armaex sheet or roll.

Always make compression joints. On curved surfaces,measure the circumference with a strip of Armaex of thesame thickness to be used for the insulation,includingany surface nish. Do not stretch the strip.

Adhesion

Apply Armaex adhesive rst to the insulation before ap-plying adhesive to the metal surface.

Note: All over adhesive is required on both contactingsurfaces in all situations. No spot or strip adhesive isrecommended.

All seams are joined wet. Leave about 15 mm withoutan adhesive coating on the Armaex surface. Attach theconnecting sheet with adhesive and with 5 mm overlap.Then press in the overlapping butt join to give additionalcompression.Wet sealing of joints on at surfaces:

Multi-layer application

Where multi-layer insulation is installed use Armaexcleaner, after 36 hours (see page 10) to remove anytalc, chalk, dirt, grease and moisture from the surfacesto be joined. Stagger all seams and butt joints on thesecond layer relative to the rst layer.

Complex shapes

Where complex shapes are to be insulated, the shapeof the body is outlined with chalk and this may be trans-ferred directly to the Armaex sheet by pressing the ex-ible material against the metal surface so that the chalkis transferred. Cut along the chalked line with a sharpknife to obtain a good t for the Armaex.

Outdoor installations

All Armaex materials (excl. HT/Armaex) used out-doors will require additional protection against UV radia-tion. We recommend the use of Armanish FR paint or

one of the Arma-Chek Systems (see page 5).HT/Armaex insulation does not require painting whenused outdoors.


30/36


31/36


32/36

VesselandTanks>>InsulatingwithArmaexSheet

ARMACELL UK LTD.

APPLICATION MANUAL 4 - Vessel & Tanks >> Insulating with Armaex sheet

32


33/36


34/36

AdditionalInformation,ApplicationGuides&CalculationTools

ARMACELL UK LTD.

APPLICATION MANUAL 5 - Additional Information, Application Guides & Calculation Tools

OTHER APPLICATION GUIDES

Application Guides for Arma-Chek S Plus, Arma-Chek T, Arma-Chek D and Arma-Chek R

Special Application Advice for NH/Armaex

Special Application Advice for HT/Armaex

Application Hints for Armaex Underground

Application hints for Armaex TuffCoat

Application of Armaex DuoSolar VA

Armaex application guide for plastic pipes

Armaex Protect R-90 application guide

Application guide for Armaex on ductwork

Application guide for ArmaSound Industrial Systems

Armaex & Arma-Chek application video

CALCULATION TOOLS

Armanish FR paint - Coverage Calculator

Arma-Chek T - Coverage Calculator

keytec. ISO 15665Determine the right ArmaSound Industrial Systems

keytec. Armaex UndergroundCalculate the impact of insulation on the time untilpipe freezing occurs.

keytec. Arma-Chek R shtail calulator Calculate the exact shape and measurements for stails used to cover bends insulated with Armaex

keytec. Unit converter metric / imperialCalculate the most common units from metric toimperial measurements

ArmWin ASArmwin AS is the technical calculation program todetermine insulation thicknesses required to preventsurface condensation and limit energy losses.It also allows users to calculate U-values, heat owsand temperature changes for pipes, ducts and tanks.

. E W

34

2%&%2%.#%3

In addition to this manual Armacell provides the followingdocuments, freely available from www.armacell.com/uk(or as part of our ArmaPlus CD). These documents con-tain further detailed advice for specic applications.

-%#(!.)#!, 02/4%#4)/. !.$ /54$//2 !00,)#!4)/.37)4( !2-!&,%8

Explanation of the issues arising when installing Armaexoutdoors and evaluation of solutions to protect Armaexfrom mechanical damage.

).35,!4).' #/,$ ,).%3 7)4( ,).% 4%-0%2!452%3

"%47%%. # 4/ # & TO &

Installation advice on issues arising when insulating lowtemperature lines below -40C.

!2-!&,%8 5.$%2'2/5.$

Explanation of the theory underlying insulating under-ground pipes, including advice on insulating under-ground pipes using Armaex and also including a cal-culation tool to calculate the impact of insulation on thetime until pipe freezing occurs.

TRACE HEATING

Explanation of the theory underlying insulating traceheated pipes, including advice on selecting correctly di-mensioned insulation tube.

ARMAFLEX ON RECTANGULAR & CIRCULAR DUCT-WORK

Additional detailed installation advice when installing Armaex onto rectangular or circular ductwork.

ARMAFLEX IN CONCRETE

Installation advice when burying pipes insulated in Armaex directly in concrete.

GLUING ARMAFLEX ONTO CELLULAR GLASS

Installation advice when installing Armaex directly ontoa cellular glass surface.

. E W

. E W

. E W

. E W

. E W

. E W

. E W


35/36

a p p

l i c a t


A R M A F L E X

ARMAFLEX TUFFCOAT

Class O Armaex tubes with a tough white covering pre-applied. Covering provides protection against UV expo-sure, impact damage and weathering.

ARMAFLEX SPLIT / DUOSPLIT

Copper pipes pre-insulated with a naturally UV resistantclosed cell EPDM rubber based Armaex insulation. In-sulation comes with a tough white covering pre-applied.Designed for use with split air conditioning systems.

ARMAFLEX DUOSOLAR

Parallel stainless steel or copper pipes pre-insulatedwith a naturally UV resistant closed cell EPDM rub-ber based Armaex insulation. Insulation comes witha tough black covering pre-applied. Designed to with-stand the temperatures associated with solar hot water systems.

ARMAFLEX PROTECT R-90

Effective re penetration sealing for pipe and ductwork. Available in tubes and sheet, Armaex Protect R-90 pro-vides up to 120 minutes insulation and integrity ratings.

ARMAFIX PIPE SUPPORT

Armaex sections with load bearing PUR/PIR insertsand an aluminium outer cladding to prevent excessivematerial compression.

ARMALOAD PIPE SUPPORT & SECTIONS

High density sections of Armaex designed to resist ma-terial compression.

ARMAFLEX ACCESSORIES

Armaex Adhesive 520, for adhering nitrile rubber based Armaex materials and Armaex Adhesive 625 for ad-hering EPDM based Armaex materials.

Armanish FR paint, for visual impact and to preventdamage from UV exposure when Armaex is used out-side.

35 ARMACELL UK LTD.

APPLICATION MANUAL

!2-!&,%8 02/$5#43

CLASS O ARMAFLEX

Closed cell, elastomeric, nitrile rubber insulation mate-rial with a Class O re rating and excellent thermal prop-erties. Available in tubes, pre-slit tubes, sheets, self-ad-hesive sheets and tapes.

CLASS O ARMAFLEX 15M COILS

Continuous and coils of Class O Armaex tube ideal for new pipework.

CLASS O ARMAFLEX SELFSEAL

Pre-slit Class O Armaex tubes with a pair of self adhe-

sive strips down the longitudinal seam. Specically de-signed to reduce installation time on existing pipework.

ARMAFLEX AC COILS

Long lengths of continuous Armaex coils for air condi-tioning and domestic heating pipes. Achieves a Class Ore rating. Supplied in easy to carry boxes.

HT/ARMAFLEX

Naturally UV resistant closed cell EPDM rubber based Armaex insulation material capable of operating at linetemperatures up to 150C.

NH/ARMAFLEX

Halogen free, closed cell nitrile rubber based Armaexinsulation material with a low smoke toxicity rat-ing. Achieves a number of maritime re performancecerticates.

CLASS O ARMAFLEX DUCT

The highly exible, aluminium foil coveredClass O Armaex Duct is designed for insulation of both,rectangular and circular ductwork - matching contoursexactly.


36/36

armaflex application uk

Documents