1、BRITISH STANDARD Installations for oil supply systems for oil burners - Part 2: Safety requirements and tests - Parts, valves, pipes, filters, oil de-aerators, meters S EN 2514-2:2000 The European Standard EN 125142:2000 has the status of a British Standard ICs 27 060 10 NO COPYING WITHOUT BSI PERMI
2、SSION EXCEPT AS PERMITTED BY COPYBIGHT LAW STD-BSI BS EN 12514-2-ENGL 2000 .I Lb24bb9 0056471 T3b - direction of the Engineering Amd. No. Date Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 O BSI 07-2000 BS EN 12614-2:2000 Comment
3、s National foreword This British Standard is the official English language version of EN 125142:2000. The K participation in its preparation was entrusted to Technical Committee ml3, Oil burning equipment, which has the responsibility to: - aid enquirers to understand the text; - present to the resp
4、onsible European committee any enquiries on the - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK. A list of organizations represented on this committee can be obtained on request to it
5、s secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitied “Inteniational Standards Correspondence Index”, or by using the “Find” facility of the BSI St
6、andards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of
7、pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. ISBN O 680 32988 7 EUROPEAN STANDARD NORME EUROPENNE EUROPISCH
8、E NORM EN 12514-2 March 2000 ICs 27.060.10 English version Installations for oil supply systems for oil burners - Part 2: Safety requirements and tests; Parts, valves, pipes, filters, oil de-aerators, meters Installations des systmes dalimentation de fioul pour les brleurs de fioul domestique - Part
9、ie 2: Prescriptions de scurit et essais ; Composants, vannes, conduites, filtres, dgazeurs de fioul domestique, compteurs Olversorgungsanlagen fr Olbrenner - Teil 2: Sicherheitstechnische Anforderungen und Prfungen; Bauelemente, Armaturen, Leitungen, Filter, Heizlentlfter, Zhler This European Standa
10、rd was approved by CEN on 21 July 1999. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this Europmn Standard the status of a national standard without any alteration. Up-todate lists and bibliographical references concerning sich na
11、tional standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by traslation under the responsibility of a CEN member into its own language and n
12、otified to the Central Secretariat has the same status as he official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
13、 and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 8-1050 Brussels Q 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
14、EN 12514-2:ZOOO E - STD.BS1 BS EN L2514-2-ENGL 2000 Is Lb24669 0858473 809 H Page 2 EN 12514-2:2000 Contents Page Foreword 2 1 Scope . 2 2 Normative references 2 3 Definitions 3 4 Safety requirements 3 5 Test methods . 6 6 Installation, maintenance and operating instructions . 14 7 Marking 14 Annex
15、A (informative) Conformity 15 Annex B (informative) Bibliography . 16 Foreword This European Standard has been prepared by Technical Committee CENTTC 47, Atomizing oil burners and their components - Function - Safety - Testing, the secretariat of which is held by DIN. This European Standard shall be
16、 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2000, and conflicting national standards shall be withdrawn at the latest by September 2000. According to the CENKENELEC Internal Regulations, the national standards org
17、anizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 1 Scope This standa
18、rd applies to parts, valves, pipes, filters, oil de-aerators and meters of oil supply installations for automatic supply of one or more oil burners or oil consuming units with light fuel oil (maximum viscosity of 10 mm2/s at a temperature of 20 OC) from one or more central storage tanks under static
19、 or dynamic pressure. This standard covers all the above mentioned components between the connection to one or more tanks and the connection to oil burners or oil consuming units, including the direct series-connected shut-off devices. EN 12514-1 covers technical safety requirements and tests for pa
20、rts, oil feed pumps, control and safety devices and oil supply tanks. This standard specifies the safety requirements and corresponding tests for all parts, valves, pipes, filters, oil de-aerators and meters within an oil supply installation. 2 Normative references This European Standard incorporate
21、s, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when in
22、corporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 12514-1 Installations for oil supply systems for oil burners - Part 1: Safety requirements and tests: Parts, oil feed pumps, control and safety devices, supply tanks O BSI
23、07-2000 STDmBSI BS EN L2514-2-ENGL 2000 6 Lh24bL9 0858474 745 Page 3 EN 12514-2:2000 EN 60335-1 Safety of household and similar electrical appliances - Part 1: General requirements (IEC 60335-1 :1991, modified) EN 60529 Degrees of protection provided by enclosures (IP-Code) (IEC 60529:1989) EN IS0 6
24、806 Rubber hoses and hose assemblies for use in oil burners - Specification (IS0 6806:1992) IS0 228-1 Pipe threads where pressure-tight joints are not made on the thread - Part 1 : Dimensions, tolerances and designation 3 Definitions For the purposes of this standard the following definitions apply:
25、 3.1 shut-off valve: device to shut-off and release the flow in oil pipes. Depending on their type, these can be for example valves, slide valves, cocks, butterfly valves. 3.2 quick-acting shut-off valve: device to shut-off and release the flow in oil pipes by short-stroke or maximum 90“ rotation by
26、 hand or automatically. 3.3 reversing valve: device in oil pipes to shut-off or release one of several flow inlets to one flow outlet individually. 3.4 forced reversing valve: device in oil pipes with several forward-flow inlets and corresponding return outlets and with one or more forward-flow outl
27、ets and corresponding return inlets. 3.5 non-return valve: device to release the flow in oil pipes in flow direction and to shut-off in reverse direction automatically. 3.6 pressure compensating device: device to limit the pressure increase in closed pipe sections due to temperature depending volume
28、 changes of the fuel oil. 3.7 relief valve: device to limit the pressure to a predetermined maximum pressure value. 3.8 oil pressure controller: device to keep the supply pressure constant within the preset limits independently of fluctuations of initial pressure and changes of volume flow. 3.9 filt
29、er: device to retain solid matter of a specified minimum size out of the pumped fuel oil. 3.10 meter: device for the volumetric measurement of fuel oil. 3.1 I oil de-aerator: device for automatic bleeding of gas and air from oil pipes. 3.12 protective siphon valve: mechanically or electromagneticall
30、y actuated valve to prevent siphoning of the oil tank automatically. 3.13 other components: components according to the scope stated in clause 1 and not defined in 3.1 to 3.12. 4 Safety requirements 4.1 Material and construction requirements The quality of the material as well as type and dimensioni
31、ng of components shall ensure the continuous safe operation and an adequate service life of the components forming part of the oil supply system, provided they are installed in accordance with the Good Practice and treated as required in the manufacturers conditions for operation, maintenance and ad
32、justment, and they shall be resistant against the mechanical, chemical and thermal stresses imposed under operational conditions. Test according to 5.4.1 and 5.4.2. O BSI 07-2000 STD.BS1 BS EN 12514-2-ENGL 2000 II 1624bb 0858475 bd1 E Page 4 EN 12514-2:2000 4.2 Pressure resistance All components sub
33、jected to pressure shall be capable of withstanding 1,3 times the maximum allowed operating pressure, but at least an overpressure of 6 bar. Test according to 5.4.6. 4.3 Temperature range Components according to this standard shall operate without failure in an oil temperature range between 0C and 4
34、0 “C. 4.4 Pipe connections Components with threaded connections shall have a metric ISO-thread or a pipe-thread according to IS0 228-1, at least four complete (carrying) turns and flats for spanner or other suitable holding means to meet the necessary torque to obtain leaktightness. Pipe connections
35、 (screws, flanges or soldered connections) and the seals used shall meet the requirements of 4.1 and shall be leaktight. Test according to 5.4.1, 5.4.2 and 5.4.5.1 NOTE: Flanges should be designed according to IS0 7005-1. 4.5 Flow resistance Under test conditions specified in 5.4.4.1 (measuring resu
36、lts x 13, the differential pressure shall not exceed 50 mbar except for reversing valves in accordance with 4.9, forced reversing valves in accordance with 4.1 O and non-return valves in accordance with 4.1 1 where the differential pressure shall not exceed 100 mbar. If any components are integrated
37、 in one construction unit, e.g. filter and shut-off valve, this requirement is considered as met, if the differential pressure of the unit does not exceed n x 50 mbar or n x 100 mbar respectively. Test according to 5.4.4.2. 4.6 Leaktightness All components specified in accordance with this standard
38、shall be leaktight from inside and outside. Test according to 5.4.5. 4.7 Shut-off valve The shut-off valve shall be leaktight in the closed position. Test according to 5.4.1,5.4.3 and 5.4.5.1. 4.8 Quick-acting shut-off valve The quick-acting shut-off valve shall be tight in the closed position and s
39、hall only allow a completely opened or closed position, but no intermediate position. The opened or closed position shall be visible. Testaccording to5.4.1, 5.4.3 and 5.4.5.1. O BSI 07-2000 Page 5 EN 12514-2:2000 4.9 Reversing valve The outlet of the reversing valve shall be connected only with one
40、inlet and shall be leaktight against the other inlet. The respective adjusted position shall be visible. Testaccording to5.4.1, 5.4.3and 5.4.5.1. 4.10 Forced reversing valve The forced reversing valve shall be adjustable only in a way where on the inlet side only one adjoined outlet connection (e.g.
41、 return flow) is opened for the flow from each adjustable inlet connection (e.$ forward flow). The respective position shall be visible and be protected against unintentional adjustment (e.g. by engaging). Test according to 5.4.1, 5.4.3 and 5.4.5.1. 4.1 1 Non-return valve The non-retum valve shall p
42、revent the decrease of the oil column. Non-return valves with a distance pin (foot valves) shall be designed in such a way that a distance of at least 50 mm is ensured between the tank bottom and the inlet opening of the non-return valve. The distance pin shall neither damage the tank bottom mechani
43、cally nor cause a contact corrosion with the tank bottom. Test according to 5.4.1, 5.4.2 and 5.4.5.2. 4.12 Pressure compensating device The pressure compensating device shall compensate for changes of the oil volume in a closed pipe section in the temperature range of 40 K. Test according to 5.4.3 a
44、nd 5.4.7. 4.1 3 Overflow valve The overflow valve shall prevent an excess of the preset pressure. It shall open at a specified inlet pressure and remain in the open position when a predetermined inlet pressure is reached. For adjustable overflow valves, the adjusted values shall be readable (e.9. th
45、rough a pressure gauge). Its adjustment shall not change automatically and shall only be possible by means of tools. An unauthorized adjustment shall be visible (e.g. protection by a lacquer layer or a seal). A connection for a return pipe shall be provided for safe discharge of the overflowing oil.
46、 Test according to 5.4.1 and 5.4.3. 4.14 Oil pressure controller An oil pressure controller preset at a fixed pressure by the manufacturer shall ensure an output pressure between 0,l bar and 0,3 bar for a supply pressure between 0,5 bar and 4,O bar. Adjustable oil pressure controllers shall be adjus
47、table, at a supply pressure between 0,5 bar and 4,O bar and within the adjustment range stated by the manufacturer, to ensure an output pressure between 0,l bar and 0,3 bar. If this adjustment range is exceeded or not reached, the range of the output pressure shall be indicated in the capacity diagr
48、am or sheet. O BSI 07-2000 Page 6 EN 12514-2:2000 The proper functioning of preset (fixed pressure) and adjustable oil pressure controllers shall be ensured within the range of flow rate stated by the manufacturer. Test according to 5.4.8. 4.15 Filter The filter shall meet the requirement of 4.5, if
49、 50 % of the filter surface are covered. A filter that can be opened shall be vacuum-tight when closed again. The filter shall retain solid matters of a grain size) 0,2 rnm. Test according to 5.4.3, 5.4.4.2 and 5.4.5.3. 4.16 Meter if a counter is employed for account calculations subject to calibration regulations, it shall be checked periodically by national test laboratories. Test according to 5.4.1 4.17 Hoses Hoses and hoses with a textile coating shall comply with the requirements of EN ISO6806. The test with the Bunsen burner is not required. Test
