Standard
Designated
BS EN 1759-3:2003
Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, class designated - Copper alloy flanges
Current, Under Review
•Published:
1 Scope
This European Standard specifies requirements for circular copper alloy flanges and
copper alloy collars combined with loose steel plate flanges in Class designations Class 150 and Class 300 and nominal sizes from DN 10 to DN 900 (NPS ½ to NPS 36) in the types shown in Table 1.
This standard also specifies dimensions and tolerances, materials and their associated
pressure/temperature (p/T) ratings, flange facings and related surface finish, weld
repairs and marking together with information on bolting, gaskets, application and
installation and approximate flange masses.
The flanges specified, with the exception of integral (type 21) flanges, are for attachment
to copper or copper alloy tubes in accordance with EN 12449.
NOTE 1 The size of copper and copper alloy tubes is designated by reference to the outside diameter in millimetres.
NOTE 2 See also annex B.
NOTE 3 Non-gasketed pipe joints are outside the scope of this standard.
Table 1
—
Types of flanges and collars
| Type No. | Description |
|---|---|
| 01 | Plate flange in copper alloy for brazing or welding |
| 04 | Loose plate flange in steel with a weld-neck collar (type 34) in copper alloy, for welding |
| 05 | Blank flange in copper alloy |
| 05C | Blank flange in steel clad with a copper alloy jointing face |
| 07 | Loose plate flange in steel with a slip-on collar (type 37) in copper alloy, for soft soldering, brazing or welding |
| 11 | Weld-neck flange in copper alloy for welding |
| 12 | Hubbed slip-on flange in copper alloy, for soft soldering, brazing or welding |
| 14 | Hubbed slip-on flange in copper alloy supplied with tube stops, for soft soldering, brazing or welding |
| 21 | Integral flange in copper alloy as part of some other equipment or component |
| 34 | Weld-neck collar in copper alloy |
| 37 | Slip-on collar in copper alloy |
Product Details
Descriptors
Copper alloys
Classification systems
Ratings
Dimensions
Flanged fittings
Marking
Valves
Temperature
Pressure
Gaskets
Pipe fittings
Holes
Designations
Bolting
Circular shape
Surface texture
Pipes
Flange facings
Flanges
ICS Codes
23.040.60 Flanges, couplings and joints
Committee
PSE/15
International relationships
Identical to:EN 1759-3:2003
ISBN
0 580 43543 1
Publisher
BSI