BS/EN 1503-4-2016 pdf download.Valves Materials for bodies, bonnets and covers Part 4: Copper alloys specified in European Standards.
This BS/EN 1503-4 lists copper alloys for pressure containing valve bodies, bonnets and covers which are specified in European Standards.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1982, Copper and copper alloys — Ingots and castings
EN 12163, Copper and copper alloys — Rod for general purposes
EN 12164, Copper and copper alloys — Rod forfree machining purposes
EN 12167, Copper and copper alloys — Profiles and bars for general purposes
EN 12168, Copper and copper alloys — Hollow rod for free machining purposes
EN 12420, Copper and copper alloys — Forgings
EN 12449, Copper and copper alloys — Seamless, round tubes for general purposes
EN 12516-4:2014, Industrial valves — Shell design strength — Part 4: Calculation method for valve shells manufactured in metallic materials other than steel
3 Materials
3.1 General
The materials shall be as given in 3.2 and 3.3.
The selection of materials should take account of the intended use and all reasonably foreseeable operation conditions. Selecting materials from Group I will provide some assurance of their suitability for valve bodies, bonnets and covers, whereas selecting from Group 2 will not provide the same assurance.
Due consideration should be given to all reasonably foreseeable degradation mechanism (e.g. corrosion, creep, fatigue) that may occur in some applications.
3.2 Group 1 materials
EN 125 16-4:2014, Table 8, lists copper alloys specified in European material standards which have been in regular use for valve bodies, bonnets arid covers.
3.3 Group 2 materials
Table I lists copper alloys specified in European material standards that may be used for valve bodies bon nets and covers.BS/EN 1503-4-2016 pdf download.