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For the Aluminium Flanges we
are allowed to give EN 10204-2.2 Test Report, indicating that our flanges can be used
for category 1 piping systems by PED 97/23/EC
For example:
1.3. Piping intended for
(a) gases, liquified gases,
gases dissolved under pressure, vapours and 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 1 with a DN greater than 25 (Annex
II, table 6),
- for fluids in Group 2 with a DN greater than 32 and a product of PS and DN
greater than 1 000 bar (Annex
II, table 7);
(b) liquids having a vapour pressure at the maximum allowable temperature
of not more than 0,5 bar above normal atmospheric pressure (1 013 mbar), within
the following limits:
- for fluids in Group 1 with a DN greater than 25 and a product of PS and DN
greater than 2 000 bar (Annex
II, table 8),
- for fluids in Group 2 with a PS greater than 10 bar, a DN greater than 200 and
a product of PS and DN greater than 5 000 bar (Annex
II, table 9).
Table
9
Piping
referred to in Article 3,
Section 1.3 (b), second indent
Table
8
Piping
referred to in Article
3, Section 1.3
(b), first indent.
Table
7
Piping
referred to in Article
3, Section 1.3
(a), second indent.
Exceptionally,
all piping containing fluids at a temperature greater than 350 °C and
falling within category II on the basis of Table 7 must be classified in
category III.
Table
6
Piping
referred to in Article
3, Section 1.3
(a), first indent.
Exceptionally,
piping intended for unstable gases and falling within categories I or II
on the basis of Table 6 must be classified in category III.
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