This standard specifies the requirements for the design and performance of threaded pipe fittings in malleable cast iron.<\/p>\n
These fittings are for general purposes for the transmission of fluids and gases up to the limits of pressure and temperature specified in this standard. They are intended for the connection of elements threaded in accordance with ISO 7-1, sizes 1\/8 to 6.<\/p>\n
For use in conditions outside the pressure and temperature limits specified, reference shall be made to the manufacturer.<\/p>\n
Fittings for general purpose transmission of fluids and gases for connecting elements threaded in accordance with ISO 7-1,size 1\/8 to 6.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | BRITISH STANDARD <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Committees responsible for this British Standard <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword Foreword to amendment A1 Foreword to amendment A2 <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Types of fitting <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Table 1 Index of fitting types, symbols and index to tables and patterns <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 4 Terminology 4.1 fitting 4.2 jointing thread 4.3 fastening thread 4.4 fitting size 4.5 designation of thread size 4.6 nominal size; DN 4.7 reinforcement 4.8 rib 4.9 outlet 4.10 run 4.11 branch 4.12 chamfer 4.13 face-to-face dimension <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4.14 face-to-centre dimension 4.15 laying length Figure 1 Forms of reinforcements 5 Materials 5.1 Material of the fitting 5.2 Hot dip zinc coating <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.3 Despatch conditions of finished fittings 6 Design 6.1 Table 2 Design symbols 6.2 6.3 6.4 <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 6.5 6.6 6.7 7 Dimensions and tolerances 7.1 Table 3 Tolerance on length 7.2 Figure 2 <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Table 4 Lengths of engagement Figure 3 Laying length 7.3 The dimensions of widths across flats depend on the design of the fittings and are left to th… Table 5 Minimum depth of spanner flats 8 Threads 8.1 Choice of thread 8.2 Alignment of threads 8.3 Chamfering <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 9 Manufacture 10 Required characteristics 10.1 Permissible working pressure and temperature 10.2 Design strength Figure 4 Pressure\/temperature ratings Table 6 Pressure\/temperature ratings Table 7 Design test pressures <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 10.3 Assembly 11 Testing and inspection 11.1 Malleable cast iron 11.2 Hot dip zinc coating 11.3 Threads 11.4 Leak tightness test 11.5 Final visual inspection 11.6 Acceptance tests for higher performances <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 11.7 Analysis of polycyclic aromatic hydrocarbons 11.8 Technical documentation 12 Clause deleted 13 Designation of fittings 13.1 Elements of the designation 13.2 Additional notes on designation of size <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 13.3 Example of designation 14 Marking Figure 5 Sequence of specifying outlets when the above mentioned abbreviated method does not apply <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Annex A (normative) Malleable cast iron fittings threaded to ISO 7-1 but having internal threads type Rc A.1 Design Table A.1 Design symbols A.2 Jointing A.3 Requirements Annex B (informative) Quality assurance system and assessment of conformity B.1 Quality assurance system B.2 Assessment of conformity <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Annex C (informative) Relationship with the essential requirements of the Construction Products Directive… Table C.1 Characteristics and corresponding clause in this standard for the\ufffdessential\ufffdrequirements Annex D (informative) Relationship between fitting size and nominal size (DN) Annex E (informative) Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Threaded pipe fittings in malleable cast iron<\/b><\/p>\n |