26
4. OPERATING CONDITIONS Allowable temperatures: - 20 °C / + 70 °C Nominal operating pressure: NP 12,5 Carrier fluid: compressed air
Max. temperature [°C]
Max. operating pressure [bar]
30 50 70
12,5
9 5
5. TECHNICAL DETAILS Specifications are only guaranteed with SICOAIR components. The SicoAir product consists of a Pipe in Primary aluminum EN AW-6060 T6 aluminum (Al Mg Si 0.5) having the following characteristics
Chemical composition
Alloy Al 6060 0,1 0,1-0,3 0,1 0,35-0,6 0,3-0,6 0,15 0,05 0,1 Remainder Cu Fe Mn Mg Si Zn Cr Ti
Specific weight 2,70 Kg/dm 3
Chemical composition
Alloy Tensile strength 6060 R m 215 N/mm 2
Limit yield
Elongation A% Hardness HB
R p0,2 160 N/mm 2
8
75
Elasticity module 69000 N/mm 2
Internal and extrenal chromate
Electrical resistance 0,033 Ω mm 2 /m Calibrated extrusion Thermal conductivity of 210 W/mK Permitted tolerances on diameter +0,1 – 0,3 Melting temperature 615-655 °C Coefficient of thermal expansion K = 0,000023
The electrostatic coating of pipes, RAL 5015, is in accordance with Legislative Decree 81/08 Title V. The pipes are marked as required by our quality assurance procedures and product guarantee to ensure the identification and traceability of the product. The range of products available is shown in the table below:
20
25
32
40
50
63
DN (mm)
6. PED DIRECTIVE 97/23/CE The SicoAir product as indicated in the operating conditions can be used at working pressures of NP 12.5 bar and therefore is subject to a verification of the applicability of European Directive 97/23/EC (PED) that must be applied when the NP is greater than 0.5 bar. To check if the SicoAir product falls within the scope of Directive 97/23/EC the following parameters need to be considered: - Type of fluid: compressed air (fluid group 2) - NP operating pressure: 12.5 bar (considered the maximum operating pressure) - DN Nominal diameter: 63 mm (considered the maximum DN) Article 3, Section 1.3 b - Directive 97/23/EC Piping intended for: a) gases, liquefied gases, gases dissolved under pressure, vapours and also those liquids whose vapour pressure at the maximum allowable
temperature is greater than 0.5 bar above normal atmospheric pressure, (1,013 mbar) within the following limits: - for fluids in Group 2 with a DN greater than 32 and the product PS x DN greater than 1 000 bar (Annex II, table 7);
It shows the calculation of the product of PS and DN: PSxDN = 12.5x63= 787.5 bar < 1000 bar
The values of PS and DN are shown on the graph.
Art. 3. Par. 3
SicoAir DN 63 and PS 12.5
Tab. 7
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