Durability
Crown Pipe Insulation is rot proof, does not sustain vermin and
will not encourage the growth of fungi, mould or bacteria. Crown
Pipe Insulation is odourless and non-hygroscopic.
Thermal performance
Crown Pipe Insulation has one of the lowest thermal
conductivities of any mineral wool pipe section and complies with
the requirements of the Building Regulations for pipe insulation.
The thermal conductivity varies with temperature in accordance with
the table to the right.
|
|
Mean temperature
°C
|
Thermal conductivity
(W/mK)
|
| 10 |
0.031 |
| 50 |
0.035 |
| 100 |
0.042 |
| 125 |
0.050 |
Note: Tested in accordance with BS 874: 1973
(1980).
|
Acoustic performance
Where there is a need to reduce radiated noise levels from
pipework, Crown Pipe Insulation provides effective control. The
actual performance varies with insulation thickness and surface
finish.
As an example, 50mm thickness of Crown Pipe Insulation under 20
swg mild steel gives an average reduction of over 28 dB. Particular
care is required to seal joints and avoid bridging to achieve the
best results.
Chloride content
Crown Pipe Insulation contains inherently low levels of
chlorides and high levels of stress corrosion inhibitors in the
form of sodium ions and silicate ions.
Chlorides are common to most environments and can be deposited
on the surface of the insulation from the air or even from
operatives' hands. In the presence of water the chlorides can
migrate through the insulation and be concentrated on the insulated
surface thus increasing the risk of stress corrosion cracking of
austenitic stainless steels.
The water resistance of Crown Pipe Insulation helps prevent this
migration whilst its natural inhibitors afford additional
protection.
Vapour and condensation
Crown Pipe Insulation will help to prevent condensation and
protect pipework from freezing when applied in thicknesses as
recommended in BS 5422.
Environmental
Crown Pipe Insulation is free from CFCs, HCFCs and any other
material with ozone depletion potential in its manufacture and
content and represent no known threat to the environment.
Crown Pipe Insulation’s
manufacture has a low impact on the environment and is classified
as Zero ODP and Zero GWP.
Handling and Storage
Crown Pipe Insulation is easy to handle and install, being
lightweight and easily cut to size.
Crown Pipe Insulation is supplied in boxes which are designed
for short term protection only. For longer term protection on site,
the product should either be stored indoors, or under cover and off
the ground. Installation instructions are on every pack.
Crown Pipe Insulation should not be left permanently exposed to
the elements.
Product Data
| Pipe o/d (mm) |
Sections
per box for the following insulation wall thicknesses: |
|
|
|
20mm |
25mm |
30mm |
35mm |
40mm |
45mm |
50mm |
60mm |
| 15 |
42 |
32 |
20 |
– |
16 |
– |
– |
– |
| 17 |
42 |
32 |
– |
– |
– |
– |
– |
– |
| 21 |
42 |
27 |
20 |
16 |
12 |
10 |
9 |
– |
| 27 |
30 |
25 |
16 |
12 |
12 |
9 |
9 |
– |
| 34 |
25 |
20 |
13 |
12 |
9 |
9 |
6 |
– |
| 42 |
20 |
16 |
12 |
12 |
9 |
6 |
6 |
– |
| 48 |
18 |
13 |
10 |
9 |
9 |
6 |
5 |
– |
| 54 |
16 |
12 |
9 |
– |
6 |
– |
5 |
– |
| 60 |
13 |
10 |
9 |
6 |
6 |
5 |
4 |
9 |
| 67 |
– |
9 |
6 |
– |
5 |
– |
4 |
– |
| 75 |
9 |
9 |
6 |
5 |
5 |
4 |
4 |
7 |
| 80 |
– |
6 |
6 |
5 |
4 |
4 |
9 |
6 |
| 89 |
– |
6 |
5 |
5 |
4 |
4 |
9 |
6 |
| 102 |
– |
5 |
4 |
4 |
4 |
4 |
6 |
3 |
| 108 |
– |
5 |
4 |
4 |
4 |
6 |
6 |
5 |
| 114 |
– |
4 |
4 |
4 |
4 |
6 |
6 |
3 |
| 127 |
– |
9 |
6 |
6 |
6 |
5 |
5 |
4 |
| 140 |
– |
8 |
6 |
6 |
5 |
5 |
5 |
4 |
| 168 |
– |
5 |
5 |
4 |
4 |
4 |
4 |
4 |
| 194 |
– |
– |
4 |
4 |
4 |
1 |
1 |
1 |
| 219 |
– |
– |
4 |
1 |
1 |
1 |
1 |
1 |
| 273 |
– |
– |
– |
1 |
1 |
1 |
1 |
1 |