BS EN 13941-2:2019
$215.11
District heating pipes. Design and installation of thermal insulated bonded single and twin pipe systems for directly buried hot water networks – Installation
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 98 |
This European Standard specifies requirements for design, calculation and installation of factory made thermal insulated bonded single and twin pipe systems for directly buried networks for continuous operation with treated hot water at various temperatures up to 120 ºC and occasionally with peak temperatures up to 140 ºC and maximum internal pressure 2,5 MPA. Flexible pipe systems according to EN 15632 are not under the scope of this standard. The standard EN 13941, Design and installation of thermal insulated bonded single and twin pipe systems for directly buried hot water networks consists of two parts: a) EN 13941-1: Design; b) EN 13941-2: Installation. The requirements and stipulations in this part: prEN 13941-2, form an unbreakable unity with those of prEN 13941-1. This part shall therefore exclusively be used in combination with prEN 13941-1. The principles of the standard may be applied to thermal insulated pipe systems with pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure. Adjacent pipes, not buried, but belonging to the network (e. g. pipes in ducts, valve chambers, road crossings above ground etc.) may be designed and installed according to this standard. This standard presupposes the use of treated water, which by softening, demineralisation, de-aeration, adding of chemicals, or otherwise has been treated to effectively prevent internal corrosion and deposits in the pipes. This standard is not applicable for such units as: a) pumps; b) heat exchangers; c) boilers, tanks; d) systems behind domestic substations.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 15 | 6.3.1 General |
| 20 | 10.2.1 Loading and unloading |
| 21 | 10.2.2 Checking of the delivery 10.3.1 General 10.3.2 Storage of pipe assemblies |
| 22 | 10.3.3 Storage of fitting and valve assemblies 10.3.4 Storage of joint casing systems and other materials |
| 23 | 11.3.1 Welding of the steel service pipe and testing of the welds 11.3.1.1 General |
| 24 | 11.3.1.2 Quality system for the different project classes |
| 26 | 11.3.1.3 Welding procedures and the welding process 11.3.1.4 Welding consumables 11.3.1.5 Place and position of the weld 11.3.1.6 Performance of welding work |
| 29 | 11.3.1.7 Special procedures |
| 31 | 11.3.1.8 Documentation |
| 36 | 11.5.1 General 11.5.2 Visual test with over pressure by air |
| 37 | 11.5.3 Visual test below atmospheric pressure by air 11.5.4 Hydrostatic test 11.5.4.1 General 11.5.4.2 Safety |
| 38 | 11.5.4.3 Procedures 11.5.4.4 Water as test medium |
| 39 | 11.5.4.5 Acceptance criteria 11.5.4.6 Leak finding |
| 40 | 11.5.4.7 Testing equipment 11.5.4.8 Test documentation and records |
| 41 | 11.5.4.9 Disposal of test water 11.5.4.10 Protection following test 11.6.1 General 11.6.2 Joints 11.6.3 Site prepared components |
| 47 | 11.11.1 Wall penetrations 11.11.1.1 General 11.11.1.2 Sealing on the building side of the pipe entry 11.11.1.3 Sealing of the casing of the pipe assembly against the pipe entry |
| 48 | 11.11.2 Connections to other pipe systems 11.11.3 Pipe laying in protection tubes 11.11.4 Protection against external impact for above ground installations |
| 51 | 15.1.1 Range of application 15.1.2 Documentation — aims and uses |
| 52 | 15.1.3 Technical documentation 15.1.3.1 General 15.1.3.2 Project documentation |
| 53 | 15.1.3.3 Test and proof documentation 15.1.3.4 Checklists for technical documentation |
| 56 | 15.1.4 Drawings of the technical documentation 15.1.4.1 General |
| 58 | 15.1.4.2 Design plan |
| 59 | 15.1.4.3 Detailed drawing 15.1.4.4 Pipeline sequence drawing and wiring diagram |
| 60 | 15.1.5 As-built documentation |
| 61 | Annex A (informative)Venting and Draining A.1 General A.2 Venting and draining devices |
| 63 | A.3 Draining devices for large pipeline dimensions |
| 64 | A.4 Venting of new pipe sections A.4.1 Venting by house connection pipeline |
| 65 | A.4.2 Venting by venting cabinets |
| 67 | Annex B (informative)Recommendations for HDD B.1 General B.2 Depth under roads |
| 68 | B.3 Minimum intermediate distances B.4 Casing and casing field joints B.5 Drilling fluid composition B.6 Drilling fluid pressures |
| 69 | B.7 Borehole dimensions and borehole stability B.8 Ballasting |
| 70 | B.9 Installation of pipe bundles B.10 Determination of position and route corrections |
| 71 | B.11 Registration and control of HDD B.12 Drilling Tolerances |
| 72 | B.13 Verification of design and methodology for the pullback operation B.14 As-Built information |
| 73 | Annex C (informative)Qualification of fitters installing joints in pre-insulated bonded pipe networks C.1 Knowledge and skills C.2 Background for training and testing C.3 Subjects for training and testing C.3.1 General |
| 74 | C.3.2 Casing of polyethylene (PE) C.3.2.1 Important construction characteristics and properties C.3.2.2 Technological behaviour of PE C.3.2.3 Mechanical properties of PE |
| 75 | C.3.2.4 Conditions for casing elements under load C.3.3 Surveillance C.3.4 PUR-foam system C.3.4.1 PUR-foam as a two component material C.3.4.2 Insulation procedures on job site |
| 76 | C.3.5 Joint types/jointing systems C.3.5.1 General C.3.5.2 Shrink sleeve joint with mastic/adhesive sealing C.3.5.3 Welded joints/systems |
| 77 | C.3.6 Installation of joints C.3.6.1 General C.3.6.2 Installation of surveillance system |
| 78 | C.3.6.3 Sealed joints |
| 79 | C.3.6.4 Welded joints C.3.6.5 Insulation of joints |
| 80 | C.3.6.6 Documentation |
| 81 | Annex D (informative)Quality control program and documentation |
| 93 | Annex E (normative)Commissioning E.1 Commissioning E.1.1 General |
| 94 | E.1.2 Filling with water for initial operation E.1.3 Surveillance system |
| 95 | Annex F (informative)Operation |
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