K-FLEX NAME PRODUCTDecember K-FLEX K-FLEX SRC/SRC ECO SRC/INT_APPLICATI… · Method of application. When using a large quantity (eg. a tin of 2.6 litres), pour a small amount out

K-FLEX NAME PRODUCTD e c e m b e r 2 0 1 6

K-FLEX SRC/SRC ECO K-FLEX

Application ManualK - F L E X S R C a n d K - F L E X S R C E C O

K-FLEX SRCK-FLEX SRC ECO

Introduction Pg. 3K-FLEX SRC/SRC ECO Pg. 4K-FLEX Accessories Pg. 5Using products and accessories Pg. 6Tools Pg. 7Practical tips Pg. 8Insulating piping over 125 mm in diameterStraight pipes Pg. 10Insulating ducting with standard SRC/SRC ECO sheets

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K-FLEX SRC/SRC ECO APPLICATION MANUAL

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K-FLEX APPLICATION MANUAL

Insulating piping for cooling, heating or air-conditioning systemsrequires a methodical approach, as well as the right tools to do the job properly.

K-FLEX products are backed up by a comprehensive range of accessories specifically designed to help the installer.

This manual contains a wealth of information and practical tips, along with clear, step-by-step, illustrated instructions to ensure you get the best results quickly and easily.

A blue arrow indicates parts or sections to be glued.

Green lines and arrows indicate a dimension to be measured.

A red line with an arrow indicates the direction for measuring or fitting.

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K-FLEX SRC INFO

Thermal insulation sheets with reduced smoke emission.

DescriptionK-FLEX SRC’s innovative design combines the high thermal performance of a rubber based flexible elastomeric foam with a reduced smoke emission coating.

ApplicationsK-FLEX SRC sheet is ideal for thermal insulation of pipes, ducting and technical systems in public buildings. ClassificationK-FLEX SRC sheet has been tested according to the current European Standard EN 13501-1 for fire classification of construction products, and is classified B-s2, d0.

K-FLEX SRC ECO INFO

Thermal insulation HALOGEN FREE with reduced smoke emission.

DescriptionK-FLEX SRC ECO sheet is an insulating sheet comprising a layer of closed cell elastomeric foam and a protective jacket. The special K-FLEX SRC ECO configuration offers a unique product which, in case of fire, minimises the emission of smoke and fumes which are also free of hydrohalic acids and organochlorine compounds.

ApplicationsK-FLEX SRC ECO sheets are ideal for thermal insulation and technical installations where low smoke emission is required in case of fire.

ClassificationK-FLEX SRC ECO sheet has been tested according to the current European standard EN 13501-1, for fire classification of construction products, and is classified B-s2, d0.


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K-FLEX SRC ACCESSORIES

K-FLEX GLUESK-FLEX glues are specifically designed for K-FLEX products and provide secure bonding. The glue hardens on drying and is thus resistant to ageing and is weatherproof.

K-FLEX THINNERIt is recommended that surfaces to be lagged should first be cleaned with K-FLEX thinner, which is suitable for use with K-FLEX glues. The glue will adhere perfectly to surfaces cleaned with the proprietory thinner. K-FLEX thinner can also be used to clean tools (brush, spatula, etc.).

K-FLEX SRC ANTICONDENSATION TAPE, SRC TAPE AND SRC FOIL

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K-FLEX USING PRODUCTS AND ACCESSORIES

CLEANING SURFACESThe surfaces to be glued must be perfectly clean and free of grease (use K-FLEX thinner). Ensure that the surface of the K-FLEX insulating material is also clean, otherwise it will not stick properly.

COATED SURFACESWhere surfaces have previously been painted, ensure that the glue is compatible and will adhere to the paint. Do not use the glue on surfaces that have been treated with products containing asphalt, bitumen or linseed oil. Use only chrome-zinc rust inhibitors and removers.

USING THE GLUEPreparation and storage. Before use, stir the K-FLEX glue thoroughly.To store the glue, close the lid tightly to prevent the solvents evaporating.If the glue should become too hard (eg. when stored in contact with the air or in extreme temperatures), dilute with K-FLEX thinner.Method of application. When using a large quantity (eg. a tin of 2.6 litres), pour a smallamount out into a separate container and top up when necessary.When applying K-FLEX insulation to metallic or other surfaces, the glue must firstbe applied to the insulating material, then to the corresponding surface.Conditions for use. Do not apply to systems that are in use.Do not use in sunlight.The insulation should be left to dry for 36 hours before turning the system back on.The ideal working temperature of the glue is +20° C.Do not use the glue at temperatures below +5° C as drying times are excessive.At temperatures above +30° C, the glue dries very rapidly.

HARDENING TIME : 36 hoursSTORAGE : in cool conditions, away from cold and heatSHELF LIFE : one yearQUANTITIES USED : with insulation sheets, approx 7m2 per liter

CHOOSING K-FLEX INSULATING MATERIALSBefore starting, choose the right type of K-FLEX insulation for the parts to be lagged.Use the thicknesses and sizes which are most suitable for the individual parts of theinstallation.Don’t forget - your K-FLEX dealer can give expert advice.

USING K-FLEX INSULATING MATERIALSInsulating tubing that is oval or flattened (eg. the larger cross-sections) should be cut along the flattened surface.


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REFRIGERATION PLANTS AND AIR-CONDITIONING SYSTEMS- Treat steel surfaces with rust inhibitor prior to applying insulation. The paint should be left for a minimum of 24 hours to dry.- Take special care over glueing critical areas such as curved sections, flanging and support brackets. Ensure that the ends of the insulating material are always firmly attached to the piping.- Do not apply insulation where parts are too close together, as this will result in the insulation becoming squashed and losing some of its properties.

When carrying out particularly complicated installations on nickel steel, refer to ourTechnical Office.

RIGID ANDFLEXIBLE TAPEMEASUREfor measuring andtracing lines to cut.

SCISSORSto facilitate cuttinginsulating material.

CHALK ANDCOMPASSto draw reference lines for measurements and cuts.

METAL BANDto help cut insulatingsheets at the end oflarge diameter pipes.

CUTTERS AND KNIVESuse both long andshort bladed knives,with spare blades.

BRUSHES(VARIOUS) AND FLEXIBLE SPATULAfor spreading glueand painting.

CALLIPERfor measuring theexternal diameterof surfaces to beinsulated.

CIRCULARPUNCHESwith a cutting edgeto make holes in theinsulation in a rangeof sizes.

K-FLEX TOOLS

A selection of good tools is essential for carrying out jobs to the highest standards.

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K-FLEX PRACTICAL TIPS

Many tasks encountered when insulating a system are repetitive. We have attempted to provide examples which can help bring optimum results straight away, saving time and effort.

MEASURING A CIRCUMFERENCEThe measurement is obtained by using a strip of K-FLEX of the same thickness to be used as the insulation. This gives you the measurement of the circumference, including the thickness of the insulating material itself.Do not stretch the strip when encircling the pipe, as this will alter the measurement. Mark the strip with chalk where the two edges overlap.

GLUEING THE EDGES OF A K-FLEX SHEETWhen insulating large diameter pipes, sheeting should be cut to fit and both edges glued.For the best results, a thin, even layer of K-FLEX glue should be applied using a brush with short, hard bristles.


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After spreading the glue, ensure that it has dried properly before attempting to stick the edges together.The best test is by touching the surface with your finger: if K-FLEX glue no longer sticks to your finger forming threads, it is ready to be positioned.

When attaching the two surfaces, press them together firmly with your fingers, starting at the far ends, then the centre and lastly along the intermediate points to avoid an irregular joint.

Use a straight-edgedspatula to spreadthe glue over largerareas. If the whole ofthe surface is to beinsulated, first applythe glue to theK-FLEX sheet, thento the surface it isto be stuck to.When the glue hasdried sufficiently,apply the sheet tothe surface.

USING OFF-CUTS

Off-cuts from K-FLEX tubes and sheets can be re-used when filling in gaps, or where smaller quantities of material are required.

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Remove the two strips of 5 cm from the elastomeric layer where the extra allowance is, leaving the cladding sheet intact.For the operation, make a clean cut in the elastomeric sheet and remove the remaining material with a scraper.The illustration shows the procedure to obtain the overlap necessary for the joints.

K-FLEX INSULATING PIPING OVER 125 MM IN DIAMETER

INSULATING A STRAIGHT PIPE

Cut a section of K-FLEX SRC/SRC ECO corresponding to the circumference of the pipe to insulate, including an extra 5 cm to allow for overlapping of the longitudinal joint. Leave an additional 5 cm on the side which will be joined to the tube already installed.

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Apply adhesive to the edges of the longitudinal joints of the elastomeric sheet.

Seal the elastomeric edges. It would be useful to make cuts in the overlap to facilitate the insertion of tube I.

Apply glue to the two elastomeric ends of the two tubes and seal together.Glue the internal sides of the overlap and the end of tube I.

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Push tube II onto tube I until the elastomeric heads, which should adhere firmly, come into contact.Fix the end parts of I to the walls of the female overlap of tube II.

If cuts are made in the overlap it is neccessary to seal the covering with SRC tape applied with glue.

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Glue the sides of the longitudinal joint of tube II.

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1Use K-FLEX thinner to thoroughly clean thesurface to be insulated.Insulation is not recommended where there is incrustation or other flaws which could prevent the sheeting from sticking perfectly.

K-FLEX INSULATING DUCTING WITH STANDARD SHEET

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Apply K-FLEX glue to the surface to beadhered to the conduit, and to the conduit surface.

Use K-FLEX glue to join the edges together.

In the example given, for the best results we recommend first lagging the lower surface of the conduit, then the side walls and lastly the top. This will prevent the penetration of humidity.

Mark the measurements of the surface to be lagged on the sheeting and cut the requiredsize from the roll.


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K-FLEX INSULATING DUCTING WITH SELF-ADHESIVE SHEET

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Using self-adhesive sheeting, carry out thesame cleaning and cutting procedures as indicated for standard sheeting.

The backing paper must be removed from the adhesive side before sticking it to theconduit surface.


Position the uncovered edge at the starting point (a). Pull the backing paper off gradually, pressing the material down as you go.


In the example given, for the best results we recommend first lagging the lower surface of the conduit, then the side walls and lastly the top. This will prevent the penetration of humidity.

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K-FLEX SRC/SRC ECO

Application ManualK - F L E X S R C a n d K - F L E X S R C E C O

L’ISOLANTE K-FLEX S.p.A. Via Leonardo da Vinci, 36 - 20877 Roncello (MB) - ItalySales [email protected] - tel. +39 039 6824.1Technical Marketing [email protected] - Tel: +39 039 6824.269 / 364 - www.kflex.com

Documents

K-FLEX NAME PRODUCTDecember K-FLEX K-FLEX SRC/SRC ECO SRC/INT_APPLICATI… · Method of application. When using a large quantity (eg. a tin of 2.6 litres), pour a small amount out