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Hlavní stránka>BS 1560-3.2:1989 Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges Specification for cast iron flanges
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sklademVydáno: 1990-03-30
BS 1560-3.2:1989 Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges Specification for cast iron flanges

BS 1560-3.2:1989

Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges Specification for cast iron flanges

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Označení normy:BS 1560-3.2:1989
Počet stran:24
Vydáno:1990-03-30
ISBN:0 580 17563 4
Status:Standard
Popis

BS 1560-3.2:1989


This standard BS 1560-3.2:1989 Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges is classified in these ICS categories:
  • 23.040.60 Flanges, couplings and joints

This Section of BS 1560 specifies requirements for circular grey and malleable cast iron flanges having Class 125 and Class 250 designations and ductile cast iron1) flanges having Class 150 and Class 300 designations. The flanges are in the range of nominal sizes ½ in to 24 in and of the type given in Table 1.

Table 1 — Types of grey, malleable and ductile cast iron flanges

Code no.a Description
205 Blank flange
212 Hubbed slip-on flange for welding
213 Hubbed threaded flange
215 Loose hubbed flange for lapped pipe end
221 Integral flange

NOTE 1 Figure 1 illustrates flanges according to description and code numbers.

NOTE 2 Flanges may be designated by description or code numbers.

a Code numbers have been made non-consecutive to permit possible future additions.

This Section of BS 1560 specifies the types of cast iron flanges and their facings, dimensions, bolt sizes, flange face surface finish, marking, materials for bolting and flange materials together with their associated pressure/temperature ratings.

NOTE 1 To assist purchasers Appendix A lists information which should be supplied when ordering flanges.

NOTE 2 Dimensional details of attachment for welded flanges of ductile cast iron (code 212) and threaded flanges of grey and ductile cast iron (code 213) attached to ductile and grey cast iron pipes to BS 4772 and BS 4622 (see 7.1) and their routine inspection and pressure testing are outside the scope of this Section of BS 1560 but some guidance is given in Appendix B.

NOTE 3 The titles of the publications referred to in this standard are listed on page 17.


Grey, malleable and ductile cast iron flanges in the range of nominal sizes ½ to 24 in.