6_1258_normflyer_engl.
qxd
13.04.2006
11:51 Uhr
Seite 1
Materials / Components
The manufacturer of the pressure equipment, who undertakes
the CE marking, requires documentation prepared by the
material manufacturer affirming compliance with a specification. When a material manufacturer uses a certified Quality
Assurance System (guidelines 7/2 and 7/16), the inspection
certificate 3.1 is issued; otherwise the inspection certificate 3.2
is issued (guideline 7/5).
erne fittings
Materials include product types, such as cast pieces, and forged pieces (including forged flanges), bars, plates, seamless
pipes and seamless fittings. Continuously machine-welded
tubes, i.e. tubes made from coils as starting materials in an
automatic process, which are usually heat treated after
welding, shall be, in terms of certification procedures,
considered as materials (guideline 7/25).
If such materials are further processed, for example by
the application of welding, such pieces are considered
components, but in the PED sense they are not yet pressure
equipment. Examples of which are pipes welded from
individual plates, or welded fittings.
For such components, the pressure equipment manufacturer
requires, aside from the material certificates from the material
supplier (e.g. manufacturer of the plates), additional documents (guideline 7/19), including to the degree applicable:
Approval of welders and welding procedures
NDT operator qualifications,
Test reports,
Information about forging and heat treatment etc.
According to the fittings standard prEN 10253, these documents are required for fittings that underwent welding as part
of the manufacturing process. For fittings that are manufactured from welded pipe, in addition to the starting material
certificate, information regarding the forging and heat treatment is required. For fittings that are manufactured from seamless pipe, a starting material certificate is not required.
The guidelines can be found on the PED Homepage of the EU Commission:
http://europa.eu.int/comm/enterprise/pressure_equipment/ped/index_en.html
better fittings. best connections.
For further information regarding the PED, EN 10253 or the
business and products of ERNE Fittings, please contact us
directly or visit our website www.ernefittings.com.
erne fittings gmbh
A-6824 Schlins, Hauptstrasse 48, Austria/Europe
Tel. +43 / 5524 501- 0, Fax +43 / 5524 501-930
office@ernefittings.com, www.ernefittings.com
erne fittings
Infoservice
PED & EN 10253
This information regarding the European
Standard for pipes and fittings and the Pressure
Equipment Directive 97/23/EC is a exclusive
service provided by ERNE Fittings GmbH, released
for the TUBE in April 2006.
Pressure Equipment Directive
The application of the Pressure Equipment Directive 97/23/EC
(PED) is mandated by law for all pressure equipment, including
piping. Principally it applies to pressures above 0.5 bar.
However, the PED is of practical consequences mainly at high
pressures, which is dependent on the facilitys volume and
the fluid it contains. There are also areas, such as nuclear
facilities or pipelines, which are excluded.
The PED regulates the CE marking of pressure equipment, by
which the manufacturer certifies that the piece corresponds to
the Directive. Depending on the pressure, volume and the
danger level of the medium (state of aggregation, gaseous or
liquid, or combustibility), a subdivision into four categories is
made. These categories in turn determine which module of
the PED has to be applied in the documentation so that the
equipment corresponds to the Directive. In part, it is required
that notified bodies (e.g. TV) be included.
In addition, essential safety requirements are also included in
the Directive. Additional technical details are regulated by
harmonized European Standards. When the harmonized
standards are used, conformity with the Directive is assumed.
The use of the harmonized standards is not mandatory,
however, it makes the CE marking easier.
6_1258_normflyer_engl.qxd
13.04.2006
11:51 Uhr
Seite 1
Materials / Components
The manufacturer of the pressure equipment, who undertakes
the CE marking, requires documentation prepared by the
material manufacturer affirming compliance with a specification. When a material manufacturer uses a certified Quality
Assurance System (guidelines 7/2 and 7/16), the inspection
certificate 3.1 is issued; otherwise the inspection certificate 3.2
is issued (guideline 7/5).
erne fittings
Materials include product types, such as cast pieces, and forged pieces (including forged flanges), bars, plates, seamless
pipes and seamless fittings. Continuously machine-welded
tubes, i.e. tubes made from coils as starting materials in an
automatic process, which are usually heat treated after
welding, shall be, in terms of certification procedures,
considered as materials (guideline 7/25).
If such materials are further processed, for example by
the application of welding, such pieces are considered
components, but in the PED sense they are not yet pressure
equipment. Examples of which are pipes welded from
individual plates, or welded fittings.
For such components, the pressure equipment manufacturer
requires, aside from the material certificates from the material
supplier (e.g. manufacturer of the plates), additional documents (guideline 7/19), including to the degree applicable:
Approval of welders and welding procedures
NDT operator qualifications,
Test reports,
Information about forging and heat treatment etc.
According to the fittings standard prEN 10253, these documents are required for fittings that underwent welding as part
of the manufacturing process. For fittings that are manufactured from welded pipe, in addition to the starting material
certificate, information regarding the forging and heat treatment is required. For fittings that are manufactured from seamless pipe, a starting material certificate is not required.
The guidelines can be found on the PED Homepage of the EU Commission:
http://europa.eu.int/comm/enterprise/pressure_equipment/ped/index_en.html
better fittings. best connections.
For further information regarding the PED, EN 10253 or the
business and products of ERNE Fittings, please contact us
directly or visit our website www.ernefittings.com.
erne fittings gmbh
A-6824 Schlins, Hauptstrasse 48, Austria/Europe
Tel. +43 / 5524 501- 0, Fax +43 / 5524 501-930
office@ernefittings.com, www.ernefittings.com
erne fittings
Infoservice
PED & EN 10253
This information regarding the European
Standard for pipes and fittings and the Pressure
Equipment Directive 97/23/EC is a exclusive
service provided by ERNE Fittings GmbH, released
for the TUBE in April 2006.
Pressure Equipment Directive
The application of the Pressure Equipment Directive 97/23/EC
(PED) is mandated by law for all pressure equipment, including
piping. Principally it applies to pressures above 0.5 bar.
However, the PED is of practical consequences mainly at high
pressures, which is dependent on the facilitys volume and
the fluid it contains. There are also areas, such as nuclear
facilities or pipelines, which are excluded.
The PED regulates the CE marking of pressure equipment, by
which the manufacturer certifies that the piece corresponds to
the Directive. Depending on the pressure, volume and the
danger level of the medium (state of aggregation, gaseous or
liquid, or combustibility), a subdivision into four categories is
made. These categories in turn determine which module of
the PED has to be applied in the documentation so that the
equipment corresponds to the Directive. In part, it is required
that notified bodies (e.g. TV) be included.
In addition, essential safety requirements are also included in
the Directive. Additional technical details are regulated by
harmonized European Standards. When the harmonized
standards are used, conformity with the Directive is assumed.
The use of the harmonized standards is not mandatory,
however, it makes the CE marking easier.
6_1258_normflyer_engl.qxd
13.04.2006
11:51 Uhr
Seite 1
Materials / Components
The manufacturer of the pressure equipment, who undertakes
the CE marking, requires documentation prepared by the
material manufacturer affirming compliance with a specification. When a material manufacturer uses a certified Quality
Assurance System (guidelines 7/2 and 7/16), the inspection
certificate 3.1 is issued; otherwise the inspection certificate 3.2
is issued (guideline 7/5).
erne fittings
Materials include product types, such as cast pieces, and forged pieces (including forged flanges), bars, plates, seamless
pipes and seamless fittings. Continuously machine-welded
tubes, i.e. tubes made from coils as starting materials in an
automatic process, which are usually heat treated after
welding, shall be, in terms of certification procedures,
considered as materials (guideline 7/25).
If such materials are further processed, for example by
the application of welding, such pieces are considered
components, but in the PED sense they are not yet pressure
equipment. Examples of which are pipes welded from
individual plates, or welded fittings.
For such components, the pressure equipment manufacturer
requires, aside from the material certificates from the material
supplier (e.g. manufacturer of the plates), additional documents (guideline 7/19), including to the degree applicable:
Approval of welders and welding procedures
NDT operator qualifications,
Test reports,
Information about forging and heat treatment etc.
According to the fittings standard prEN 10253, these documents are required for fittings that underwent welding as part
of the manufacturing process. For fittings that are manufactured from welded pipe, in addition to the starting material
certificate, information regarding the forging and heat treatment is required. For fittings that are manufactured from seamless pipe, a starting material certificate is not required.
The guidelines can be found on the PED Homepage of the EU Commission:
http://europa.eu.int/comm/enterprise/pressure_equipment/ped/index_en.html
better fittings. best connections.
For further information regarding the PED, EN 10253 or the
business and products of ERNE Fittings, please contact us
directly or visit our website www.ernefittings.com.
erne fittings gmbh
A-6824 Schlins, Hauptstrasse 48, Austria/Europe
Tel. +43 / 5524 501- 0, Fax +43 / 5524 501-930
office@ernefittings.com, www.ernefittings.com
erne fittings
Infoservice
PED & EN 10253
This information regarding the European
Standard for pipes and fittings and the Pressure
Equipment Directive 97/23/EC is a exclusive
service provided by ERNE Fittings GmbH, released
for the TUBE in April 2006.
Pressure Equipment Directive
The application of the Pressure Equipment Directive 97/23/EC
(PED) is mandated by law for all pressure equipment, including
piping. Principally it applies to pressures above 0.5 bar.
However, the PED is of practical consequences mainly at high
pressures, which is dependent on the facilitys volume and
the fluid it contains. There are also areas, such as nuclear
facilities or pipelines, which are excluded.
The PED regulates the CE marking of pressure equipment, by
which the manufacturer certifies that the piece corresponds to
the Directive. Depending on the pressure, volume and the
danger level of the medium (state of aggregation, gaseous or
liquid, or combustibility), a subdivision into four categories is
made. These categories in turn determine which module of
the PED has to be applied in the documentation so that the
equipment corresponds to the Directive. In part, it is required
that notified bodies (e.g. TV) be included.
In addition, essential safety requirements are also included in
the Directive. Additional technical details are regulated by
harmonized European Standards. When the harmonized
standards are used, conformity with the Directive is assumed.
The use of the harmonized standards is not mandatory,
however, it makes the CE marking easier.
6_1258_normflyer_engl.qxd
13.04.2006
11:51 Uhr
Seite 2
Pipe Standards
Fittings Standards
Types of Fittings
Intended for use in the area of validity of the PED mainly the
Standards EN 10216 and EN 10217 Steel Tubes for Pressure
Purposes. These Standards are considered for harmonization
and they consist of multiple parts:
The European Standard EN 10253 butt-welding pipe fittings
describes fittings and consists of four parts. Part 2 and Part 4 are
planned for harmonization.
In prEN 10253-2 and prEN 10253-4, two types of fittings are
described; similar to products covered by the two the German
fittings standards (e.g. DIN 2605-1 and DIN 2605-2).
Seamless
Welded
Room temperature
EN 10216-1
EN 10217-1
Elevated
Temperatures
EN 10216-2
EN 10217-2
EN 10217-5
Fine Grain Steel
EN 10216-3
EN 10217-3
Low
Temperatures
EN 10216-4
EN 10217-4
EN 10217-6
Stainless Steel
EN 10216-5
EN 10217-7
For pressure purposes, in addition, the EN 10208-2 Steel
pipes for pipelines of combustible fluids, technical delivery
conditions pipes of delivery class B is to be mentioned.
However, due to its predominant application in pipelines
(excluded from the PED) this Standard will not be harmonized.
Without specific
inspection
requirements
With specific
inspection
requirements
Non-alloy
and ferritic
alloy steel
EN 10253-1
(1999)
prEN 10253-2
(2005)
Stainless
steel
prEN 10253-3
(2005)
prEN 10253-4
(2005)
Fittings of Type A are characterized in that they have the same
wall thickness in the body as at the welding ends. Their
resistance to internal pressure is, in general, less than that of a
straight pipe of the same dimension. (Reduced pressure factor).
Fittings of Type B are designed to resist the same internal
pressure as a straight pipe with the same nominal dimension,
and have, in general, a wall thickness in the body of the fitting
that is greater than the nominal thickness. (Full pressure factor).
Part 1 of the Standard was already issued in 1999. Parts 2
through 4 are, as of early 2006, solely white drafts. These parts
may be issued as Standards by early 2007.
EN 10253-1
Applicable to PED
Non-alloy and alloy steel
Pipe Classes of the Chemical Industry
In October 2005, the German chemical industry made public
the PAS 1057 specification Pipe classes for process plants.
Considered as a pipe class are parts such as pipes, fittings,
flanges with different diameters made from one material
designed for the same nominal pressure.
The design follows from the European Norm EN 13480
Industrial piping and not from German regulations.
Also for the parts themselves, reference is made to European
Norms (e.g. EN 10216). For fittings, for which the European
Norms are not yet existent, reference is still made to the DIN
standards.
Fittings with reduced pressure
factor (Type A)
prEN 10253-2
prEN 10253-3
X
X
X
X
X
X
X
X
X
X
X
X
X
DIN 2609
A St 37.0
P265TR2
B St 44.0
P235GH
F St 35.8 I
G St 35.8 III
3.1 (3.2)
2.2 (others)
3.1 (3.2)
Number of materials
1+1
24
25
25
Diameter
21,3 - 406,8 mm
21,3 - 1219 mm
21,3 - 1016 mm
21,3 - 1016 mm
Wall thickness series
1+2
Elbows
2D, 3D, 5D
2D, 3D, 5D
2D, 3D, 5D
ID+100, 3ID, 5ID
2D, 3D, 5D
ID+100, 3ID, 5ID
regular, pulled,
branch welded
regular, pulled,
branch welded
regular
Reducers
concentric,
eccentric
concentric,
eccentric
concentric,
eccentric
concentric,
eccentric
Caps
caps, dished ends
caps
caps
caps
H 15 Mo 3
13CrMo4-5
13 CrMo 4 4
10CrMo9-10
10 CrMo 9 10
X11CrMo5
X11CrMo9-1
X10CrMoVNb9-1
Fine Grain Steel
Low Temperatures
2.2
regular
prEN 10253-2
P235TR2
10CrMo5-5
Inspection documents
Tees
Elevated
Temperatures
prEN 10253-4
X
X
X
Fittings with full pressure
factor (Type B)
Room temperature
16Mo3
Stainless steel
Establishment of:
Geometry
Material
Delivery requirements
Internal pressure resistance
The EN 10253-1 contains only two materials, the S235,
which replaces the St 37.0 from the DIN 2609 and the S265
mentioned in the annex.
The prEN 10253-2 contains non-alloy and alloy steels for
various applications, which, in part, correspond to materials in
the DIN 2609:
P265GH
X
X
Materials in the Standard for Fittings
EN 10253
P355N
C St 52.0
P355NH
WStE 355
P355NL1
TStE 355
P265NL
TStE 285
12Ni14
U 10 Ni 14
P215NL
X10Ni9
Combustible Fluids
L290NB
D StE 290.7
L360NB
StE 360.7
L360QB
L415NB
L415QB
L450QB
grey: similar, but not equivalent
The proposals prEN 10253-3 and prEN 10253-4 pertain to all
austenitic and austenitic-ferritic stainless steels which are
enclosed in EN 10217-7 for welded pipes made of stainless
steel.
6_1258_normflyer_engl.qxd
13.04.2006
11:51 Uhr
Seite 2
Pipe Standards
Fittings Standards
Types of Fittings
Intended for use in the area of validity of the PED mainly the
Standards EN 10216 and EN 10217 Steel Tubes for Pressure
Purposes. These Standards are considered for harmonization
and they consist of multiple parts:
The European Standard EN 10253 butt-welding pipe fittings
describes fittings and consists of four parts. Part 2 and Part 4 are
planned for harmonization.
In prEN 10253-2 and prEN 10253-4, two types of fittings are
described; similar to products covered by the two the German
fittings standards (e.g. DIN 2605-1 and DIN 2605-2).
Seamless
Welded
Room temperature
EN 10216-1
EN 10217-1
Elevated
Temperatures
EN 10216-2
EN 10217-2
EN 10217-5
Fine Grain Steel
EN 10216-3
EN 10217-3
Low
Temperatures
EN 10216-4
EN 10217-4
EN 10217-6
Stainless Steel
EN 10216-5
EN 10217-7
For pressure purposes, in addition, the EN 10208-2 Steel
pipes for pipelines of combustible fluids, technical delivery
conditions pipes of delivery class B is to be mentioned.
However, due to its predominant application in pipelines
(excluded from the PED) this Standard will not be harmonized.
Without specific
inspection
requirements
With specific
inspection
requirements
Non-alloy
and ferritic
alloy steel
EN 10253-1
(1999)
prEN 10253-2
(2005)
Stainless
steel
prEN 10253-3
(2005)
prEN 10253-4
(2005)
Fittings of Type A are characterized in that they have the same
wall thickness in the body as at the welding ends. Their
resistance to internal pressure is, in general, less than that of a
straight pipe of the same dimension. (Reduced pressure factor).
Fittings of Type B are designed to resist the same internal
pressure as a straight pipe with the same nominal dimension,
and have, in general, a wall thickness in the body of the fitting
that is greater than the nominal thickness. (Full pressure factor).
Part 1 of the Standard was already issued in 1999. Parts 2
through 4 are, as of early 2006, solely white drafts. These parts
may be issued as Standards by early 2007.
EN 10253-1
Applicable to PED
Non-alloy and alloy steel
Pipe Classes of the Chemical Industry
In October 2005, the German chemical industry made public
the PAS 1057 specification Pipe classes for process plants.
Considered as a pipe class are parts such as pipes, fittings,
flanges with different diameters made from one material
designed for the same nominal pressure.
The design follows from the European Norm EN 13480
Industrial piping and not from German regulations.
Also for the parts themselves, reference is made to European
Norms (e.g. EN 10216). For fittings, for which the European
Norms are not yet existent, reference is still made to the DIN
standards.
Fittings with reduced pressure
factor (Type A)
prEN 10253-2
prEN 10253-3
X
X
X
X
X
X
X
X
X
X
X
X
X
DIN 2609
A St 37.0
P265TR2
B St 44.0
P235GH
F St 35.8 I
G St 35.8 III
3.1 (3.2)
2.2 (others)
3.1 (3.2)
Number of materials
1+1
24
25
25
Diameter
21,3 - 406,8 mm
21,3 - 1219 mm
21,3 - 1016 mm
21,3 - 1016 mm
Wall thickness series
1+2
Elbows
2D, 3D, 5D
2D, 3D, 5D
2D, 3D, 5D
ID+100, 3ID, 5ID
2D, 3D, 5D
ID+100, 3ID, 5ID
regular, pulled,
branch welded
regular, pulled,
branch welded
regular
Reducers
concentric,
eccentric
concentric,
eccentric
concentric,
eccentric
concentric,
eccentric
Caps
caps, dished ends
caps
caps
caps
H 15 Mo 3
13CrMo4-5
13 CrMo 4 4
10CrMo9-10
10 CrMo 9 10
X11CrMo5
X11CrMo9-1
X10CrMoVNb9-1
Fine Grain Steel
Low Temperatures
2.2
regular
prEN 10253-2
P235TR2
10CrMo5-5
Inspection documents
Tees
Elevated
Temperatures
prEN 10253-4
X
X
X
Fittings with full pressure
factor (Type B)
Room temperature
16Mo3
Stainless steel
Establishment of:
Geometry
Material
Delivery requirements
Internal pressure resistance
The EN 10253-1 contains only two materials, the S235,
which replaces the St 37.0 from the DIN 2609 and the S265
mentioned in the annex.
The prEN 10253-2 contains non-alloy and alloy steels for
various applications, which, in part, correspond to materials in
the DIN 2609:
P265GH
X
X
Materials in the Standard for Fittings
EN 10253
P355N
C St 52.0
P355NH
WStE 355
P355NL1
TStE 355
P265NL
TStE 285
12Ni14
U 10 Ni 14
P215NL
X10Ni9
Combustible Fluids
L290NB
D StE 290.7
L360NB
StE 360.7
L360QB
L415NB
L415QB
L450QB
grey: similar, but not equivalent
The proposals prEN 10253-3 and prEN 10253-4 pertain to all
austenitic and austenitic-ferritic stainless steels which are
enclosed in EN 10217-7 for welded pipes made of stainless
steel.
6_1258_normflyer_engl.qxd
13.04.2006
11:51 Uhr
Seite 2
Pipe Standards
Fittings Standards
Types of Fittings
Intended for use in the area of validity of the PED mainly the
Standards EN 10216 and EN 10217 Steel Tubes for Pressure
Purposes. These Standards are considered for harmonization
and they consist of multiple parts:
The European Standard EN 10253 butt-welding pipe fittings
describes fittings and consists of four parts. Part 2 and Part 4 are
planned for harmonization.
In prEN 10253-2 and prEN 10253-4, two types of fittings are
described; similar to products covered by the two the German
fittings standards (e.g. DIN 2605-1 and DIN 2605-2).
Seamless
Welded
Room temperature
EN 10216-1
EN 10217-1
Elevated
Temperatures
EN 10216-2
EN 10217-2
EN 10217-5
Fine Grain Steel
EN 10216-3
EN 10217-3
Low
Temperatures
EN 10216-4
EN 10217-4
EN 10217-6
Stainless Steel
EN 10216-5
EN 10217-7
For pressure purposes, in addition, the EN 10208-2 Steel
pipes for pipelines of combustible fluids, technical delivery
conditions pipes of delivery class B is to be mentioned.
However, due to its predominant application in pipelines
(excluded from the PED) this Standard will not be harmonized.
Without specific
inspection
requirements
With specific
inspection
requirements
Non-alloy
and ferritic
alloy steel
EN 10253-1
(1999)
prEN 10253-2
(2005)
Stainless
steel
prEN 10253-3
(2005)
prEN 10253-4
(2005)
Fittings of Type A are characterized in that they have the same
wall thickness in the body as at the welding ends. Their
resistance to internal pressure is, in general, less than that of a
straight pipe of the same dimension. (Reduced pressure factor).
Fittings of Type B are designed to resist the same internal
pressure as a straight pipe with the same nominal dimension,
and have, in general, a wall thickness in the body of the fitting
that is greater than the nominal thickness. (Full pressure factor).
Part 1 of the Standard was already issued in 1999. Parts 2
through 4 are, as of early 2006, solely white drafts. These parts
may be issued as Standards by early 2007.
EN 10253-1
Applicable to PED
Non-alloy and alloy steel
Pipe Classes of the Chemical Industry
In October 2005, the German chemical industry made public
the PAS 1057 specification Pipe classes for process plants.
Considered as a pipe class are parts such as pipes, fittings,
flanges with different diameters made from one material
designed for the same nominal pressure.
The design follows from the European Norm EN 13480
Industrial piping and not from German regulations.
Also for the parts themselves, reference is made to European
Norms (e.g. EN 10216). For fittings, for which the European
Norms are not yet existent, reference is still made to the DIN
standards.
Fittings with reduced pressure
factor (Type A)
prEN 10253-2
prEN 10253-3
X
X
X
X
X
X
X
X
X
X
X
X
X
DIN 2609
A St 37.0
P265TR2
B St 44.0
P235GH
F St 35.8 I
G St 35.8 III
3.1 (3.2)
2.2 (others)
3.1 (3.2)
Number of materials
1+1
24
25
25
Diameter
21,3 - 406,8 mm
21,3 - 1219 mm
21,3 - 1016 mm
21,3 - 1016 mm
Wall thickness series
1+2
Elbows
2D, 3D, 5D
2D, 3D, 5D
2D, 3D, 5D
ID+100, 3ID, 5ID
2D, 3D, 5D
ID+100, 3ID, 5ID
regular, pulled,
branch welded
regular, pulled,
branch welded
regular
Reducers
concentric,
eccentric
concentric,
eccentric
concentric,
eccentric
concentric,
eccentric
Caps
caps, dished ends
caps
caps
caps
H 15 Mo 3
13CrMo4-5
13 CrMo 4 4
10CrMo9-10
10 CrMo 9 10
X11CrMo5
X11CrMo9-1
X10CrMoVNb9-1
Fine Grain Steel
Low Temperatures
2.2
regular
prEN 10253-2
P235TR2
10CrMo5-5
Inspection documents
Tees
Elevated
Temperatures
prEN 10253-4
X
X
X
Fittings with full pressure
factor (Type B)
Room temperature
16Mo3
Stainless steel
Establishment of:
Geometry
Material
Delivery requirements
Internal pressure resistance
The EN 10253-1 contains only two materials, the S235,
which replaces the St 37.0 from the DIN 2609 and the S265
mentioned in the annex.
The prEN 10253-2 contains non-alloy and alloy steels for
various applications, which, in part, correspond to materials in
the DIN 2609:
P265GH
X
X
Materials in the Standard for Fittings
EN 10253
P355N
C St 52.0
P355NH
WStE 355
P355NL1
TStE 355
P265NL
TStE 285
12Ni14
U 10 Ni 14
P215NL
X10Ni9
Combustible Fluids
L290NB
D StE 290.7
L360NB
StE 360.7
L360QB
L415NB
L415QB
L450QB
grey: similar, but not equivalent
The proposals prEN 10253-3 and prEN 10253-4 pertain to all
austenitic and austenitic-ferritic stainless steels which are
enclosed in EN 10217-7 for welded pipes made of stainless
steel.
6_1258_normflyer_engl.qxd
13.04.2006
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Materials / Components
The manufacturer of the pressure equipment, who undertakes
the CE marking, requires documentation prepared by the
material manufacturer affirming compliance with a specification. When a material manufacturer uses a certified Quality
Assurance System (guidelines 7/2 and 7/16), the inspection
certificate 3.1 is issued; otherwise the inspection certificate 3.2
is issued (guideline 7/5).
erne fittings
Materials include product types, such as cast pieces, and forged pieces (including forged flanges), bars, plates, seamless
pipes and seamless fittings. Continuously machine-welded
tubes, i.e. tubes made from coils as starting materials in an
automatic process, which are usually heat treated after
welding, shall be, in terms of certification procedures,
considered as materials (guideline 7/25).
If such materials are further processed, for example by
the application of welding, such pieces are considered
components, but in the PED sense they are not yet pressure
equipment. Examples of which are pipes welded from
individual plates, or welded fittings.
For such components, the pressure equipment manufacturer
requires, aside from the material certificates from the material
supplier (e.g. manufacturer of the plates), additional documents (guideline 7/19), including to the degree applicable:
Approval of welders and welding procedures
NDT operator qualifications,
Test reports,
Information about forging and heat treatment etc.
According to the fittings standard prEN 10253, these documents are required for fittings that underwent welding as part
of the manufacturing process. For fittings that are manufactured from welded pipe, in addition to the starting material
certificate, information regarding the forging and heat treatment is required. For fittings that are manufactured from seamless pipe, a starting material certificate is not required.
The guidelines can be found on the PED Homepage of the EU Commission:
http://europa.eu.int/comm/enterprise/pressure_equipment/ped/index_en.html
better fittings. best connections.
For further information regarding the PED, EN 10253 or the
business and products of ERNE Fittings, please contact us
directly or visit our website www.ernefittings.com.
erne fittings gmbh
A-6824 Schlins, Hauptstrasse 48, Austria/Europe
Tel. +43 / 5524 501- 0, Fax +43 / 5524 501-930
office@ernefittings.com, www.ernefittings.com
erne fittings
Infoservice
PED & EN 10253
This information regarding the European
Standard for pipes and fittings and the Pressure
Equipment Directive 97/23/EC is a exclusive
service provided by ERNE Fittings GmbH, released
for the TUBE in April 2006.
Pressure Equipment Directive
The application of the Pressure Equipment Directive 97/23/EC
(PED) is mandated by law for all pressure equipment, including
piping. Principally it applies to pressures above 0.5 bar.
However, the PED is of practical consequences mainly at high
pressures, which is dependent on the facilitys volume and
the fluid it contains. There are also areas, such as nuclear
facilities or pipelines, which are excluded.
The PED regulates the CE marking of pressure equipment, by
which the manufacturer certifies that the piece corresponds to
the Directive. Depending on the pressure, volume and the
danger level of the medium (state of aggregation, gaseous or
liquid, or combustibility), a subdivision into four categories is
made. These categories in turn determine which module of
the PED has to be applied in the documentation so that the
equipment corresponds to the Directive. In part, it is required
that notified bodies (e.g. TV) be included.
In addition, essential safety requirements are also included in
the Directive. Additional technical details are regulated by
harmonized European Standards. When the harmonized
standards are used, conformity with the Directive is assumed.
The use of the harmonized standards is not mandatory,
however, it makes the CE marking easier.
