EN 88-1-2011 8125 Pressure regulators and associated safety devices for gas appliances - Part 1 Pressure regulators for inlet pressures up to and including 50 kPa (Incorporates Ame.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 88-1:2011Pressure regulators and as-sociated safety devices for gasPart 1: Pressure regulators for inlet pressures up to and including 50 kPa Copyright European Committee f

2、or Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 88-1:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 88-1:2011. It supersedes BS EN 12067-1:1999, BS EN 12078:1

3、998 and BS EN 88-1:2007, which will be withdrawn on 26 February 2014.The UK participation in its preparation was entrusted to Technical Committee GSE/22, Safety and control devices for gas and oil burners and gas burning appliances.A list of organizations represented on this committee can be obtaine

4、d on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 67964 3 ICS 23.060.40Compliance with a British Standard cannot confer immunity from legal obligations.This

5、 British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2011.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or ne

6、tworking permitted without license from IHS-,-,-BS EN 88-1:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 88-1 April 2011 ICS 23.060.40 Supersedes EN 12067-1:1998, EN 12078:1998, EN 88-1:2007English Version Pressure regulators and associated safety devices for gas appliances - Part 1: Pres

7、sure regulators for inlet pressures up to and including 50 kPa Rgulateurs de pression et dispositifs de scurit associs pour appareils gaz - Partie 1: Rgulateurs de pression pour pression amont infrieure ou gale 50 kPa Druckregler und zugehrige Sicherheitseinrichtungen fr Gasgerte - Teil 1: Druckregl

8、er fr Eingangsdrcke bis einschlielich 50 kPa This European Standard was approved by CEN on 26 February 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any altera

9、tion. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made

10、by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia

11、, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPIS

12、CHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 88-1:2011: ECopyright European Committee for Standardization Provided by IHS under license with CENNo

13、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 88-1:2011EN 88-1:2011 (E) 2 Contents Page Foreword 51 Scope 72 Normative references 73 Terms and definitions .84 Classification . 114.1 Classes of control . 114.2 Groups of control 114.3 Classes of control functio

14、ns . 115 Units of measurement and test conditions 116 Construction requirements 126.1 General . 126.2 Mechanical parts of the control . 126.2.1 Appearance . 126.2.2 Holes 126.2.3 Breather holes . 126.2.4 Test for leakage of breather holes 126.2.5 Screwed fastenings 136.2.6 Jointing 136.2.7 Moving pa

15、rts 136.2.8 Sealing caps 136.2.9 Dismantling and reassembly . 136.2.101Adjustments 136.2.102Resistance to pressure 136.2.103Blockage of canals and orifices 136.2.104Signal tube connections 136.3 Materials 136.3.1 General material requirements 136.3.2 Housing 136.3.3 Test for leakage of housing after

16、 removal of non-metallic parts . 146.3.4 Zinc alloys . 146.3.5 Springs providing closing and/or sealing force 146.3.6 Resistance to corrosion and surface protection . 146.3.7 Impregnation . 146.3.8 Seals for glands for moving parts. 146.4 Gas connections . 146.4.1 Making connections . 146.4.2 Connec

17、tion sizes 146.4.3 Threads 146.4.4 Union joints . 146.4.5 Flanges 146.4.6 Compression fittings 156.4.7 Nipples for pressure test . 156.4.8 Strainers 156.5 Electronic parts of the control . 156.6 Protection against internal faults for the purpose of functional safety 157 Performance 157.1 General . 1

18、57.2 Leak tightness . 157.3 Test for leak tightness 157.3.1 General . 157.3.2 External leak-tightness 167.3.3 Internal leak-tightness 16Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IH

19、S-,-,-BS EN 88-1:2011EN 88-1:2011 (E) 3 7.3.101External leak-tightness for signal carrying compartment(s) 167.4 Torsion and bending . 167.5 Torsion and bending tests 167.6 Rated flow rate . 167.7 Test for rated flow . 167.7.1 Apparatus . 167.7.2 Test procedure . 167.7.3 Conversion of air flow rate .

20、 167.8 Durability 167.9 Performance tests for electronic controls 167.10 Long-term performance for electronic controls . 177.101 Pressure regulator performance 177.101.1General . 177.101.2General test procedure . 187.101.3Class A pressure regulator performance 207.101.4Class B pressure regulator per

21、formance 207.101.5Class C pressure regulator performance 217.101.6Endurance 227.101.7Lock-up pressure 227.101.8Requirement for rendered inoperative pressure regulators . 237.101.9Test for rendered inoperative pressure regulators 237.102 Pneumatic gas/air ratio pressure regulator performance . 237.10

22、2.1General . 237.102.2General test procedure . 237.102.3Control performance and stability . 247.102.4Settling time . 257.102.5Gas/air ratio adjustment . 257.102.6Offset adjustment 267.102.7Endurance 268 EMC/Electrical requirements 268.1 Protection against environmental influences. 268.2 Supply volta

23、ge variations below 85 % of rated voltage 278.3 Short term voltage interruptions and decreases . 278.4 Supply frequency variations 278.5 Surge immunity test 278.6 Electrical fast transient/burst . 278.7 Immunity to conducted disturbances . 278.8 Immunity to radiated fields . 278.9 Electrostatic disc

24、harge immunity test 278.10 Power frequency magnetic field immunity test 278.11 Electrical requirements . 278.11.1 General . 278.11.2 Electrical equipment . 289 Marking, installation and operating instructions . 289.1 Marking . 289.2 Installation and operating instructions . 289.3 Warning notice . 30

25、Annex A (informative) Gas connections in common use in the various countries . 31Annex B (informative) Leak-tightness test volumetric method . 32Annex C (informative) Leak-tightness test pressure loss method 33Annex D (normative) Conversion of pressure loss into leakage rate . 34Annex E (normative)

26、Electrical/electronic component fault modes 35Annex F (normative) Additional requirements for safety accessories and pressure accessories as defined in EC Directive 97/23/EC 36Annex G (normative) Materials for pressurized parts . 37Copyright European Committee for Standardization Provided by IHS und

27、er license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 88-1:2011EN 88-1:2011 (E) 4 Annex H (informative) Additional materials for pressurized parts 38Annex I (normative) Requirements for controls used in DC supplied gas burners and gas burning app

28、liances 39Annex AA (informative) Typical pressure regulators and pressure regulator parts . 40Annex BB (informative) Overview of requirements and test conditions (as given in Clause 7), and examples of performance curves for pressure regulators 41Annex ZA (informative) Relationship between this Euro

29、pean Standard and the Essential Requirements of EC Directive 2009/142/EC relating to appliances burning gaseous fuels 47Bibliography . 49Figures Figure 1 Step response of a transfer element . 10Figure 2 Performance test apparatus 19Figure 3 Delta p versus rated flow rate curve . 30Figure AA.1 Types

30、of constant pressure regulators 40Figure BB.1 Example for class A pressure regulator including maximum outlet pressure variations for constant outlet setting pressure p2sand lock-up pressure p2fincluding typical results 42Figure BB.2 Example for class A pressure regulator including maximum outlet pr

31、essure variations for adjustable outlet setting pressures p2smin, p2smax, and lock-up pressures p2fmin, p2fmax, including typical results . 43Figure BB.3 Example for class A pressure regulator including maximum outlet pressure variation for constant outlet setting pressure p2sincluding typical resul

32、ts 44Figure BB.4 Example for class B pressure regulator including maximum outlet pressure variation for constant outlet setting pressure p2sincluding typical results 44Figure BB.5 Example for class C pressure regulator including maximum outlet pressure variation for constant outlet setting pressure

33、p2sincluding typical results 45Tables Table 1 Gas pressure at inlet to the pressure regulator 17Table 2 Outlet pressure variation from the outlet setting pressure p2s17Table 3 Control performance test procedure 24Table BB.1 Overview of pressure regulator requirements 41Table BB.2 Test procedure . 46

34、Table ZA.1 Correspondence between this European Standard and Directive 2009/142/EC relating to appliances burning gaseous fuels 47Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-

35、BS EN 88-1:2011EN 88-1:2011 (E) 5 Foreword This document (EN 88-1:2011) has been prepared by Technical Committee CEN/TC 58 “Safety and control devices for burners and appliances burning gaseous or liquid fuels”, the secretariat of which is held by BSI. This European Standard shall be given the statu

36、s of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at the latest by April 2014. Attention is drawn to the possibility that some of the elements of this document may be the subjec

37、t of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 88-1:2007, EN 12067-1:1998 and EN 12078:1998. This document has been prepared under a mandate given to CEN by the European Commission and the European Free

38、Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This document is intended to be used in conjunction with EN 13611:2007. This document refers to clauses of EN 13611:

39、2007 or adapts clauses by stating “with the following modification”, “with the following addition”, “is replaced by the following” or “is not applicable“ in the corresponding clause. This European Standard adds clauses or sub-clauses to the structure of EN 13611:2007 which are particular to this Eur

40、opean Standard. It should be noted that these clauses and sub-clauses are not indicated as an addition. Sub-clauses or annexes which are additional to those in EN 13611:2007 are numbered starting from 101 or are designated as Annex AA, BB, CC etc. It should be noted that the following significant te

41、chnical changes compared to the previous edition have been incorporated in this European Standard: a) alignment with EN 13611:2007; b) requirements and tests of Pneumatic gas/air ratio pressure regulators (EN 12067-1) and Zero pressure regulators (EN 12078) included in this European Standard; c) req

42、uirements and tests for breather holes changed; d) requirements and tests for housings changed; e) general requirement for leak tightness changed; f) requirement for rated flow rate changed; g) tests for class A and B regulators changed; h) declarations of nominal diameters and maximum inlet pressur

43、e extended. EN 88 Pressure regulators and associated safety devices for gas appliances consists of the following parts: EN 88-1, Pressure regulators and associated safety devices for gas appliances Part 1: Pressure regulators for inlet pressures up to and including 50 kPa; EN 88-2, Pressure regulato

44、rs and associated safety devices for gas appliances Part 2: Pressure regulators for inlet pressures above 500 mbar up to and including 5 bar. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license f

45、rom IHS-,-,-BS EN 88-1:2011EN 88-1:2011 (E) 6 Performance Level (PL) or Safety Integrity Level (SIL) classifications according to EN ISO 13849-1 or EN 61508-1 cannot automatically be claimed based upon compliance with this European Standard. Pressure regulators with PL or SIL classification do not a

46、utomatically meet the requirements of this European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estoni

47、a, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 88-1:2011EN 88-1:2011 (E) 7 1 Scope This Eu