UNI EN 1092-2 : 1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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FLANGES AND THEIR JOINTS - CIRCULAR FLANGES FOR PIPES, VALVES, FITTINGS AND ACCESSORIES, ON DESIGNATED - CAST IRON FLANGES
24-01-2024
28-02-1999
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
3.1 Flange
3.2 DN (nominal size)
3.3 PN
3.4 Ductile iron
3.5 Grey iron
3.6 Malleable iron
3.7 Joint
4 Designation and types
4.1 Range of DN
4.2 Range of PN designations
4.3 Types of flanges
4.4 Standard designation
4.5 Information to be supplied by the purchaser
5 General requirements
5.1 Flange material
5.2 Repairs by welding
5.3 Bolting
5.4 Gaskets
5.5 Pressure/Temperature (p/T) ratings
5.6 Dimensions
5.7 Flange facings
5.8 Spot facing or back facing
5.9 Tolerances
5.10 Marking and stamping
5.11 Quality assurance
Annex A (normative) Information to be supplied by the
purchaser
Annex B (informative) Notes to tables 6 to 12
Annex C (informative) Bibliography
Tables
1 Numerical values of the surface finish parameters
(Ra and Rz) of flange jointing faces
2 Synoptic table for ductile iron flanges
3 Synoptic table for grey iron flanges
4 Synoptic table for malleable iron flanges
5 Dimensions for type B flange facings
6 Dimensions of PN 2,5 flanges
7 Dimensions of PN 6 flanges
8 Dimensions of PN 10 flanges
9 Dimensions of PN 16 flanges
10 Dimensions of PN 25 flanges
11 Dimensions of PN 40 flanges
12 Dimensions of PN 63 flanges
13 Tolerances on dimensions
14 Materials and assigned PN values
15 Pressure/temperature ratings for high strength
ductile iron flanges
16 Pressure/temperature ratings for low strength ductile
iron flanges
17 Pressure/temperature ratings for grey iron flanges
18 Pressure/temperature ratings for malleable iron
flanges
Figures
1 Types of flanges
2 Flange facing types A and B
3 Dimensions of PN 2,5 flanges
4 Dimensions of PN 6 flanges
5 Dimensions of PN 10 flanges
6 Dimensions of PN 16 flanges
7 Dimensions of PN 25 flanges
8 Dimensions of PN 40 flanges
9 Dimensions of PN 63 flanges
Defines requirements for circular flanges made from ductile, grey and malleable cast iron for DN 10 to DN 4000 and PN 2,5 to PN 63. Defines flange type and facings, dimensions and tolerances, bolt sizes, surface finishes of jointing faces, marking, testing quality assurance and materials in addition to associated pressure/temperature (p/T) ratings.
| DevelopmentNote |
Partially replaces: UNI 2223; UNI 2224; UNI 2225; UNI 2226; UNI 2227; UNI 2249; UNI 2250; UNI 2253; UNI 2287; UNI 2288; UNI 2289; UNI 2290; UNI 2291; UNI 2292; UNI 2293; UNI 2300; UNI 6087; UNI 6088; UNI 6089; UNI 6090. Replaces UNI 2234; UNI 2235; UNI 2236; UNI 2237; UNI 2238; UNI 2239. (06/99)
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| UNE-EN 1092-2:1998 | Identical |
| NF EN 1092-2 : 1997 | Identical |
| NS EN 1092-2 : 1ED 1997 | Identical |
| NBN EN 1092-2 : 1997 | Identical |
| EN 1092-2:1997 | Identical |
| BS EN 1092-2:1997 | Identical |
| NEN EN 1092-2 : 1997 | Identical |
| I.S. EN 1092-2:1997 | Identical |
| SN EN 1092-2 : 1997 | Identical |
| ONORM EN 1092-2 : 1997 | Identical |
| DIN EN 1092-2:1997-06 | Identical |
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