IEC 60534-7:2010 pdf free download

IEC 60534-7:2010 pdf free download ndustrial-process control valves – Part 7: Control valve data sheet
1Scope
This part of the lEC 60534 series provides a list of requirements that are normally necessaryfor the procurement of the majority of control valves for process systems. No attempt is madeto include all possible requirements for any conceivable process.
The list is arranged in a format designed to assist the specification writer with a standardizedpresentation of data and also to be a basis for use with data processing facilities.
A detailed set of instructions is included in order to ensure that the abbreviated terms are fullyunderstood and that consistent data entries are always made.
2Normative references
The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies.For undated references, the latest editionof the referenced document (including any amendments) applies.
IEC 60529:2001 Degrees of protection provided by enclosures (IP Code)lEC 60534(all parts), Industrial-process control valves
lEC 60534-1:2005, Industrial-process control valves – Part 1: Control valve terminology andgeneral considerations
IEC 60534-2-1:1998, Industrial-process control valves – Part 2-1: Flow-capacity – Sizingequations for fluid flow under installed conditions
IEC 60534-2-4:2009,Industrial-process control valves – Part 2-4: Flow capacity – Inherentflow characteristics and rangeability
IEC 60534-2-5:2003, Industrial-process control valves -Part 2-5: Flow-capacity-Sizingequations for fluid flow through multistage control valves with interstage recovery
IEC 60534-3-1:2000, Industrial-process control valves -Part 3-1: Dimensions-Face-to-facedimensions for flanged, two-way, globe-type, straight patterm and centre-to-face dimensionsfor flanged, two-way, globe-type, angle pattern control valves
IEC 60534-3-2:2001, Industrial-process control valves – Part 3-2: Dimensions -Face-to-facedimensions for rotary control valves except butterfly valves
IEC 60534-3-3:1998, Industrial-process control valves – Part 3-3: Dimensions- DimensionsEnd-to-end dimensions for buttweld, two-way, globe-type, straight pattern control valves
IEC 60534-4:2006,Industrial-process control valves- Part 4: Inspection and routine testingIEC 60534-5:2004,Industrial-process control valves – Part 5: Marking
3 Terms and definitions
For the purposes of this document, the terms and definitions given in the IEC 60534 series apply.
4Application
4.1General
The control valve data sheet (Figure 1) below may be used for three different levels of controlvalve selection.
4.2Preliminary valve specification
For a preliminary inquiry and/or quotation, buyer and vendor may agree on a minimum level ofinformation. In this case, the buyer and manufacturer mark a few lines only in column 1 by adot, triangle or other symbol.This method minimizes efforts for both buyer and vendor.
4.3 Inquiry valve specification
In inquiry stage, some of the process data and also some of the general requirements will notbe fully known and specified.This may not allow the application of the lEC calculation
methods given in IEC 60534-2-1 and iEC 60534-2-5.Preliminary valve sizing methods may beused at this stage.Since the main focus of the inquiry specification is to provide all data
required to work out a comparable technical and commercial quote, in most cases there is aneed to mark additional lines beyond those in 6.1.Also on the inquiry specification, the linesin column 1 shall be marked by a dot, triangle or other symbol by the buyer and manufacturer.
4.4Order valve specification
A complete ordering specification should ideally include all relevant information about thevalve, actuator and accessories concerned. In this case, the fully completed control valvedata sheet becomes a kind of passport, which allows an exact identification and can be usedfor many purposes.