In-tune with a quieter environment:
INDUSTRIAL PROCESS PIPEWORK
ArmaSound Industrial Systems
Industrial Systems
The First Sound Control Systems to Minimise the Risk of Under Insulation Corrosion
ArmaSound Industrial Systems are high performance acoustic and thermal insulation systems for industrial, marine
and offshore environments. The sandwich system of Armaflex, ArmaSound RD 240 and Arma-Chek R covering
reduces the risk of corrosion under insulation (CUI) and provides exceptional noise reduction while minimising total
system weight and thickness.
» Combined thermal and acoustic properties
»The “built-in water-vapour-barrier” provides continuous long-term thermal efficiency
» Prevents condensation by using closed cell technology
» No galvanic corrosion
»Non-metal cladding system - reduces Health and Safety risks
»Significantly reduced insulation thickness and overall system
weight
» Resists UV, oil, chemical and weather attacks
» Considerable reduction in maintenance costs
»Meets ISO 15665 Class A to Class C,
Class D acc. to Shell DEP Spec. No. 31
»Meets NORSOK standard R-004 Class 6, 7
and 8
» Meets ASTM E 1222
What is ISO 15665:Acoustic
ISO 15665 is an international standard setting classes for acoustic pipework insulation systems. Insulation systems
are classified by their insertion loss performance and the diameter of pipe onto which they are applied.
The standard allows noise control engineers to select the correct insulation system during the design stage in
order to ensure that specified noise targets are met.
Table: Minimum insertion loss required for each class acc. ISO 15665:2003
Nominal pipe diameter D
mm
Class
lower limit
A1
Octave band centre frequency, Hz
125
250
upper limit
500
1 000
2 000
4 000
8 000
Minimum insertion loss, dB
< 300
-4
-4
2
9
16
22
29
A2
≥ 300
< 650
-4
-4
2
9
16
22
29
A3
≥ 650
< 1 000
-4
2
7
13
19
24
30
< 300
-9
-3
3
11
19
27
35
B1
B2
≥ 300
< 650
-9
-3
6
15
24
33
42
B3
≥ 650
< 1 000
-7
2
11
20
29
36
42
< 300
-5
-1
11
23
34
38
42
-7
4
14
24
34
38
42
1
9
17
26
34
38
42
C1
C2
≥ 300
< 650
C3
≥ 650
< 1 000
ArmaSound
Industrial
Systems
to ISO 15665
ArmaSound Industrial
Systems
acc. to acc.
ISO 15665
Application Areas_
pipe work in
Industrial Applications_
ArmaSound Industrial System A (EL)
Reduced Thickness
2
1
2
Arma-Chek R
1
Armaflex
2 mm
25 mm
Octave band centre frequency, Hz
Test Results Class A2
nom. pipe-Ø: ≥ 300mm to < 650mm
125
250
500
1 000
2 000
4 000
8 000
Insertion loss, dB
1.4
-.3.7
3.9
12.8
18.9
28.6
38.9
Gas & Oil Facilities_
ArmaSound Industrial System B (EL)
Reduced Thickness
3
2
3
1
Arma-Chek R
2 mm
2
ArmaSound RD 240
25 mm
1
Armaflex (1)
13 mm
Cryogenic Applications_
Octave band centre frequency, Hz
Test Results Class B2
nom. pipe-Ø: ≥ 300mm to < 650mm
125
250
500
1 000
2 000
4 000
8 000
Insertion loss, dB
0.9
0.8
9.2
17.2
28.6
38.2
42.0
(1) If thermal considerations for cold applications should be made: Class B will also be achieved with a 25mm layer of Armaflex
in place of the 13mm layer.
ArmaSound Industrial System C (EL)
5
3
4
2
1
5
Arma-Chek R
4
ArmaSound Barrier E
nom. 2 mm
3
ArmaSound Barrier E
nom. 3 mm
2
ArmaSound RD 240
25 mm
1
Armaflex
25 mm
2 mm
Octave band centre frequency, Hz
Test Results Class C2
nom. pipe-Ø: ≥ 300mm to < 650mm
125
250
500
1 000
2 000
4 000
8 000
Insertion loss, dB
-1.2
11.8
16.3
24.3
36.0
49.8
47.6
For more information and assistance on understanding ISO 15665, including a full calculation
tool, see www.armacell.com/uk.
INDUSTRIAL SYSTEMS
ArmaSound Industrial Systems acc. to SHELL DEP Spec No. 31
ArmaSound Industrial System D (EL)
6
5
4
3
6
Arma-Chek R
5
Armaflex
2 mm
25 mm
4
ArmaSound Barrier E
2
3
ArmaSound RD 240
25 mm
1
2
ArmaSound RD 240
25 mm
1
Armaflex
25 mm
nom. 4 mm
Octave band centre frequency, Hz
Test Results Class D2
nom. pipe-Ø: ≥ 300mm to < 650mm
125
250
500
1 000
2 000
4 000
8 000
Insertion loss, dB
-3.3
5.1
15.6
37.2
48.8
49.7
45.6
Components of ArmaSound Industrial Systems
ARMAFLEX
Armaflex is the worlds leading flexible elastomeric insulation material. Combining an excellent thermal conductivity with a closed cell structure, Armaflex is renowned for its built-in
water vapour barrier, its resistance to water ingress and its long term durability. Unlike other
insulation materials Armaflex requires no external vapour barrier and will maintain its thermal
properties over a long period of time.
As a dust and fibre free material Armaflex has the ideal combination of properties that make
it the thermal insulation material of choice for many large scale industrial and offshore
projects.
ARMASOUND RD 240
Delivering optimal performance at lower thicknesses than traditional materials, ArmaSound RD is
a uniquely advanced open cell acoustic insulation material. Depending on the thickness chosen,
ArmaSound RD240 offers excellent sound absorption behaviour across the frequency range.
Thanks to a density much greater than traditional acoustic absorption materials, ArmaSound
RD 240 is also suitable for some applications that may also call for an acoustic airborne noise
barrier.
ArmaSound RD 240 provides a dust and fibre free solution that is suitable for use in a range of
demanding environments.
ARMASOUND Barrier E
Vinyl sound barrier mat loaded with naturally occurring minerals. The product is free of lead,
unrefined aromatic oils and bitumen. It is excellent at reducing the transmission of airborne
sound and in enhancing the insertion loss performance of pipe insulation.
ARMA-CHEK R
ArmaChek R is a particularly resilient, non metallic, covering system. Markedly reducing the
corrosion and installation issues associated with metallic covering systems ArmaChek R has
been designed to work in harmony with Armaflex insulation, expanding and contracting as
required. It is also used to enhance the insertion loss performance of our acoustic insulation
systems.
INDUSTRIAL SYSTEMS
The First Sound Control Systems to Minimise the Risk of Under Insulation Corrosion
Armacell UK Limited
Mars Street Oldham, Lancs. OL9 6LY
Tel 0161 287 7100 · Fax 0161 633 2685
www.armacell.com · info.uk@armacell.com
All statements and technical information are based on results obtained under typical conditions. It is the responsibility of the recipient to verify with us that the information is appropriate for
the specific use intended by the recipient. For updates to this document please refer to our website www.armacell.com/uk.
© Armacell UK Ltd. · Subject to alterations · Printed in UK 038-001-0709-EN (UK,ROI)