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Climaflex Pipe Insulation

Climaflex polyethylene pipe insulation is probably the best place to begin a discussion on pipe insulation. it is a grey, closed cell, polyethylene foam and widely available online and from DIY centres and plumbers merchants.

Polyethylene tends to be the cheapest insulation around, but that does not make it a poor quality product. It has a good thermal conductivity (0.034W/m.K @ 0ºC) comparable with nitrile rubber making it a good material for central heating pipes and frost protection applications. The material itself is not UV stable, so it is not advisable to use it out of doors but it has a closed cell structure so it does not absorb water, or at least it will not unless it is left in a body of water for an extended period. If you do use it outside the material is likely to degrade much quicker than normal, a time scale is difficult to predict dependent on how much sun the product gets, but it would certainly need replacing within 2-5 years.

In terms of application, most people would find it easy enough to do. You would need a sharp knife, a contact based neoprene adhesive (one where you apply a small small amount to either face to be joined and allow it to "tack dry" before joining the material together) and a steady hand. The material comes in 1m or 2m lengths and is relatively flexible, more so at thinner wall thickness's. It can go around most shallow bends, but for angles you would need to cut it with a mitre block or similar. The below video gives a more visual insight into how the material is installed:


Thinking in terms of what thickness to use, invariably the thicker the better. The material comes in 9mm, 13mm, 19mm and 25mm Thickness's. 9mm & 13mm tend to be used for domestic central heating pipes, they are cheap and effective for this kind of application. For frost protection, Water Bylaw 49 (UK) states that the thinner the pipe, the thicker the insulation is required. A brief table of pipe sizes and required thickness's is given below.


Pipe Dia O/D (mm)
Normal Conditions
15
25
22
19
28
19
35
13
42
9
54
9
76
9

The above refer to a normal home environment in an insulated loft space, where absences over 24 hours would not be considered normal.

If you are looking for energy conservation, the Energy Savings Trusts recommend 25mm Thick on 15mm, 22mm, 28mm and 35mm diameter pipes for maximum efficiency.

The product has a temperature range of -45ºC to plus 105ºC, although it will begin to soften around 90ºC. This is more than adequate for the majority of domestic applications. 

For more information on the complete range of sizes and clips, tapes and adhesives to match, plese visit:

Comments

  1. Could Climaflex be used in a commercial building (school) for insulating small bore hot & cold water pipes within boxings.There is minimal space available within the boxing and 9mm is being considered for 22 & 15 copper pipe.Would this be effective in preventing heat loss or heat gain to the cold water service?

    ReplyDelete
  2. Unfortunately you would not be able to use this product for a commercial building, as you would need a Class 0 fire rating to comply with the building regulations. 9mm of insulation is not what you would ideally want, and may not be adequate if you are required to comply with BS5422, but in these instances it is better to have thin insulation than no insulation at all. You may want to look at some of our Class 0 Pipe Insulation products such as Eurobatex or K Flex online at http://www.insulationandlagging.co.uk/. You are very welcome to give us a call on (01942) 295 926 if you need further advice.

    ReplyDelete
  3. Can climaflex be used in lieu of ducting to lay copper ch pipes in concrete?

    ReplyDelete
    Replies
    1. Climaflex can be used to protect the pipes under concrete, though it must be properly sealed using the appropriate adhesive at all seams and butt joints:

      http://www.insulationandlagging.co.uk/Pipe-Insulation-Lagging/Climaflex-Accessories/Climaflex-Adhesive-125g-Tubes

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