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PED Professional Directive 97/23/EC - Pressure Equipment Directive
06/08/2013
Calculation of test pressure acc. to EN 13445-5 for the standard water pressure test, taking into account temperature dependent material properties without considering the fluid pressure (hydrostatic pressure) Projekt:
Duvaci gara Novoprojektovani cevovod viskog pritiska 2"-SS-9601-0
Wall thickness emin:
5.13 mm
Max. allowable temp.Ts:
412 °C
Max. allowable pressure Ps:
47 bar
Design pressure Pd at Td: Material:
45.5 bar
P265GH (1.0425)( EN 10216-2:2002 )
Type of material: Non austenitic steels acc. to EN 13445-3, 6.2 with A < 30% Testing group:
Testing group 1-3
Design stress
Calculation of test pressure
Allowable design strength fTd of design conditions at design temperature Rp0,2/T =
132.56 MPa
Rp0,2/T / 1.5 = 88.37 MPa
Rm/20 =
410.00 MPa
Rm/20 / 2.4 = 170.83 MPa
fd = fTd =
88.37 MPa
Allowable design strength of design conditions at proof temperature, normally 20 °C Rp0,2/20 =
245.00 MPa
Rp0,2/20 / 1.5 = 163.33 MPa
Rm/20 =
410.00 MPa
Rm/20 / 2.4 = 170.83 MPa
fa =
163.33 MPa
Calculation of the test pressure PT in bar acc. to EN 13445-5
Pt =
105.12 bar
Pt1 = Ps * 1,43 =
67.21 bar
Pt2 = Ps * 1,25 * fa / fTd =
105.12 bar
Pt = max(Pt1, Pt2) with
Exceptions and special cases are to be taken into account according to EN 13445-5! In case of doubt, the original text of the DIN EN 13445 is authoritative.
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