I.S. EN 50216-8:2005
Current
The latest, up-to-date edition.
POWER TRANSFORMER AND REACTOR FITTINGS - PART 8: BUTTERFLY VALVES FOR INSULATING LIQUID CIRCUITS
Hardcopy , PDF
English
01-01-2005
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
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1 Scope
2 Normative references
3 Requirements and characteristics
3.1 Description
3.2 Operating characteristics
3.3 Components characteristics
4 Assembly arrangements and dimensions
4.1 Types of assembly
4.2 Overall dimensions
5 Dimensions and types of gaskets, dimensions of gasket
seats
5.1 General
5.2 Gaskets and gasket material
5.3 Admissible operating conditions
5.4 Design criteria for gasket seats - Choice of flange
gaskets
6 Performances
6.1 Tightness of the mounted valve
6.2 Tightness of the butterfly blade
6.3 Operating torque
6.4 Maximum working overpressure with the butterfly valve
in open and closed position
7 Tests
7.1 Tightness of the mounted valve
7.2 Tightness of the butterfly blade
7.3 Operating torque
7.4 Maximum working overpressure with the butterfly valve
in open and closed position
8 Supply conditions
Define valves used on the pipelines, in which the insulating liquid of power transformers or reactors flows, in order to allow the replacement of components, without removing the whole or a large amount of the insulating liquid from the conservator and the tank.
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| NEN EN 50216-8 : 2005 AMD 1 2006 | Identical |
| NF EN 50216-8 : 2005 AMD 1 2006 | Identical |
| SN EN 50216-8 : AMD 1 2006 | Identical |
| NBN EN 50216-8 : 2005 AMD 1 2007 | Identical |
| DIN EN 50216-8 : 2007 | Identical |
| UNE-EN 50216-8:2006 | Identical |
| BS EN 50216-8:2005 | Identical |
| EN 50216-8 : 2005 AMD 1 2006 | Identical |
| EN 50216-1:2002 | Power transformer and reactor fittings - Part 1: General |
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