1、 STD=BSI BS EN IS0 14847-ENGL 1999 Lb24bb9 0828189 729 - BRITISH STANDARD Rotary positive displacement pumps - Technical requirements Tlie European Standard EN IS0 14847:lW has the status of a British Standard NO COPYING WITHOIIT RSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW 35 EN IS0 14847:19
2、99 STD-BSI BS EN IS0 LY847-ENGL 1999 H 3624669 0828390 440 H BS EN IS0 148471999 Amd. No. National foreword Date Comments This British Standard, having k*ii prepat14 under tli dirrction (ithr Enginerring Swtrir (omrnitlrv-, was published undrr thc- authority o tli Standards (ominitkc and comrs inti)
3、 rrci on I5 May i9!N 10836 Corrigendum No. 1 ISBN O 580 30986 1 February 2000 inserted Duplicate page 12 of EN IS0 deleted and page 11 This British Standard is the English language version of EN Is0 148471999. It is identical with EN IS0 148471999. The K participation in its preparation was entruste
4、d to Technical Committee MCW6, Pumps and pump testing, to Subcommittee MCW6/6, Positive displacement pumps, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible internationalEuropean committee any enquiries on the interpretation, or proposals for chan
5、ge, and keep the UK interests informed; - monitor related htermtionai and European developments and promulgate them in the K A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is dram to the fact that CEN and CENELEC Stand
6、ards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement intemational or European publications referred to in this document may be found in the BSI Standards Catalogue under the
7、 section entitled “International Standa,rds Correspondence index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include ail the necessary provisions of a contract. Users of British Standards are responsible for their correct applic
8、ation. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 20, an inside back cover and a back cover. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NO
9、RM EN IS0 14847 April 1999 ICs 23.080 English version Rotary positive displacement pumps - Technical requirements (IS0 14847: 1 999) Pompes vdum6triques B mouvement rotatif - Prescriptions techniques (IS0 14847:1999) Rotierende Verdrngerpumpen - Technische Anforderungen (IS0 14847:1999) This Europea
10、n Standard was approved by CEN on 8 November 1998. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographicel references conce
11、rning such national standards may be obtained on application to the Centrai secretariat or to any GEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member Into its own
12、language and notified to the Central Secretariat has the same status as the officiai versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France. Germany. Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal. Spain, Swede
13、n, Switzerland and United Kingdom. EUROPEAN COMMiITEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG Central Secretariat: rue de Saimrt. 36 E-1050 Brussels 0 1999 GEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Me
14、mbers. - Rel. No. EN IS0 14847:1999 E STD-BSI BS EN IS0 14Bq7-ENGL 1999 = 1624667 0828392 213 = Page 2 EN IS0 14847: 1999 Contents Page Foreword 3 Introduction 4 1 scope 5 2 Normative references 3 Definitions 5 7 4 Information and requirements to be confirmed, agreed and documented 7 5 Fitness for p
15、urpose 6 Pumpdesign 7 Auxiliary equipment 8 Noise 8 8 12 14 9 Installation and maintenance 14 1 O Materials, welding and repairs 11 Surface protection 12 Nameplates and marking 13 Preparation for dispatch 14 16 16 16 Annex A (informative) Data sheet 18 - - STDeBSI BS EN IS0 14847-ENGL 1777 Lb24bb9 0
16、828193 15T Page 3 EN IS0 14847: 1999 Foreword The text of EN IS0 14847:1999 has been prepared by Technical Committee CEN/TC 197 “Pumps“, the secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 1 15 “Pumps“. This European Standard shall be given the status of a nat
17、ional standard, either by publication of an identical text or by endorsement, at the latest by October 1999, and conflicting national standards shall be withdrawn at the latest by October 1999. According to the CENKENELEC Internal Regulations, the national standards organizations of the following co
18、untries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Ponugal, Spain, Sweden, Switzerland and the United Kingdom. Page 4 EN IS0 14847: 1999 Introduction This Europe
19、an Standard specifies all the technical requirements for rotary positive displacement pumps and rotary positive displacement pump units with the exception of safety and testing. Safety and testing of positive displacement pumps and pump units are specified in the following European Standards: EN 809
20、 Pumps and pump units for liquids - General safety requirements prEN 12 162 Liquid pumps - Procedure for hydrostatic testing EN . Positive displacement pumps and pump units - Code for acceptance tests WI 0197018 EN 12639 Liquid pumps and pump units - Noise test code - Grade 2 and 3 of accuracy Page
21、5 EN IS0 14847: 1999 1 Scope This standard specifies the technical requirements, other than safety and testing, for rotary positive displacement pumps and rotary positive displacement pump units. This standard does not apply to rotary positive displacement pumps for fluid power applications. 2 Norma
22、tive references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of
23、any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 287-1 EN 287-2 EN 288-1 EN 288-2 EN 288-3 EN 809 EN 20898-1 EN 20898-2 prEN 1956 prEN 12162 Approval t
24、esting of welders - Part i: Steels Approval testing of welders - Pan 2: Aluminium Approval of procedures for welding metallic materials - l?an i : General rules Approval of procedures for welding metallic materials - PJ 2: Arc welding :pproval of procedures for welding metallic materials - iBn 3. Ar
25、c welding steels Pumps and rotary positive displacement pump units for liquids - ( icncrlil safety requirements hlcchanical properties of fasteners - Part 1: Bolts, screws and studs ( IS0 898- 1 : 1988) Mechanical properties of fasteners - Part 2: Nuts with specified proof load values - Course threa
26、d (IS0 898-2: 1992) Non-destructive testing - Penetrant testing and magnetic particle testing - Viewing conditions Liquid pumps - Procedure for hydrostatic testing Page 6 EN IS0 14847: 1999 prEN 12723 prEN IS0 4 126- 1 prEN IS0 9934-1 IS0 7-1 IS0 14 IS0 228-1 1som 773 1som 774 ISOR 775 ISOn75: ADD 1
27、 IS0 1027 IS0 2491 IS0 2492 IS0 31 i7 IS0 3453 IS0 3912 IS0 4156 IS0 7005-1 Liquid pumps - General terms for pumps and rotary positive displacement pump units, definitions, quantities, symbols and units Safety devices for protection against exessive pressure - Part 1 : Safety relief valves (ISODIS 4
28、 126- 1 : 1995) Non-destructive testing - Magnetic particle inspection - General principles (ISODIS 9934-1 : 1996) Pipe threads where pressure-tight joints are made on the threads - Part 1 : Designation, dimensions and tolerances Straight-side splines for cylindrical shafts with internal centering -
29、 Dimensions, tolerances and verification Pipe threads where pressure-tight joints are not made on the threads - Part 1 : Designation, dimensions and tolerances Rectangular or square parallel keys and their corresponding keyways (Dimensions in millimetres) Taper keys with or without gib head and thei
30、r corresponding keyways (Dimensions in millimetres) Cylindrical and 1/10 conical shaft ends Checking of the depth of keyways in conical shaft ends - Addendum 1 Radiographic image quality indicators for non-destructive testing - Principles and identification Thin parallel keys and their corresponding
31、 keyways (Dimensions in millimetres) Thin taper keys with or without gib head and their corresponding keyways (Dimensions in millimetres) Tangential keys and keyways Non-destructive testing - Liquid penetrant inspection - Means of verification Woodruff keys and keyways. Straight cylindrical involute
32、 splines - Metric modules, side fit - Generalities, dimensions and inspection Metallic flanges - Part 1: Steel flanges STD-BSI BS EN IS0 L4847-ENGL 1999 Lb24bb 0828L97 BT5 IS0 7005-2 IS0 7005-3 IS0 10375 Page 7 EN IS0 14847: 1999 Metallic flanges - Pari 2: Cast iron flanges Metallic flanges - Part 3
33、: Copper alloy and composite flanges Non-destructive testing - Ultrasonic inspection - Characterization of search unit and sound field 3 Definitions For the purposes of this standard the definitions given in prEN 12723 apply together with the following: 3.1 rotary positive displacement pump: A machi
34、ne in which liquid is trapped in confined volumes and transported from an inlet port to an outlet port by a rotational movement of the pumping element or elements. NOTE: According to EN 809, pumps are defined as being terminated by their inlet and outlet branches as well as, in general, by their sha
35、ft ends without couplings. 3.2 rotary positive displacement pump unit: An assembly of a rotary positive displacement pump and its driver, with necessary transmission and structural supporting elements terminating at the connections for the inlet and outlet branches and at the energy supply to the dr
36、iver. 4 Information and requirements to be confirmed, agreed and documented 4.1 Purchaser information The purchaser shall provide the supplier with the information necessary for the proper selection of a pump or pump unit. To facilitate this the data sheet included as annex A can be used. The select
37、ion shall consider all received and relevant information on performance requirements, environment and intended operating conditions. Any missing information necessary for pump selection shall be requested by the supplier. The purchasers information shall include specification of options and items fo
38、r special agreement according to this Standard and, where applicable, requests for deviations from this Standard. Clauses of this Standard referring to options and special agreements are listed in 4.2 and 4.3. 4.2 Optional requirements If thc purchaser wishes to include any of the optional requireme
39、nts given in this standard such requirements shall be specified and documented at the time of enquiry and confirmed at the time of order. See clauses: STD-BSI BS EN IS0 34847-ENGL 3979 m Lb24bb7 0828398 733 m Page 8 EN IS0 14847: 1999 6.5.2 constant level oilers; 6.7.1 flanged or screwed connections
40、; 6.7.1 studded flange facings; 6.7.1 alternative flange specifications; 6.7.1 alternative pipe thread specifications; 6.9.2 altemative connection specifications for auxiliary ports. 4.3 Items to be agreed Items to be agreed between purchaser and supplier shall be fully documented at the time of pla
41、cing the order. See clauses: 7.4 Baseplates; 7.4.1 drain rim baseplates; 7.4.1 7.6.2.2 systems for heatinglcooling; 13.6 Installation / operating instructions special alignment facilities for baseplates; 5 Fitness for purpose The design and selection of the pump and pump components shall be compatib
42、le with the liquid, environment and operating conditions supplied by the purchaser in accordance with clause 4. 6 Pump design 6.1 Environmental conditions Pumps and rotary positive displacement pump units shall be designed to operate under the following normal conditions: - minimum air temperature 2
43、 “C; - maximum air temperature 40 OC; - maximum relative humidity 80 %. If unusual environmental or operating conditions, such as those listed below, have been specified by the purchaser at the time of enquiry, the pump shall be designed to meet these requirements: - ambient temperatures or humidity
44、 deviating from the above values; - exposure to direct sunlight; - atmospheric pollution including airborne solids; - biological attack; STD-BSI BS EN IS0 24847-ENGL 2999 Lb24bb9 0828139 638 m Page 9 EN IS0 14847: 1999 - wetting by directed water; - cleaning by hot water, steam or chemicals; - exter
45、nal shock or vibration; - lack of ventilation; - flooding; - extended periods of shut-down. 6.2 Basic design criteria Pumps shall be designed to operate continuously as well as intermittently with any combination of parameters supplied by the purchaser in accordance with clause 4. Consideration shal
46、l be given during design to the handling of components and assemblies when erecting, assembling and maintaining the pump/pump unit. Facilities shall be provided, where necessary, for jacking bolts, extraction screws, locating dowels and spigots and lifting eyes. Designs shall comply with the safety
47、requirements of EN 809. 6.3 Design of structural and pressure containing parts The design of the pump and pump unit components shall be suitable for the operating conditions and for the environment specified. 6.4 Sealing systems All shafts extending outside of enclosed machinery shall be fitted with
48、 a suitable seal. The seal shall be selected and installed according to the seal manufacturers recommendations for the operating conditions. 6.5 Bearing lubrication 6.5.1 suitable means for re-lubrication shall be provided. If grease lubricated bearings need re-lubrication during their service life
49、of the pump, 6.5.2 Oil lubricated bearings which are not lubricated by the process liquid shall be fitted with an oil reservoir with a visual oil level indicator. Adding or draining oil shall be accomplished without disassembly other than plugs or breathers. NOTE: Constant level oilers may be used providing the working oil level is clearly marked on the bearing housing. STD-BSI BS EN IS0 14847-ENGL 1999 H 1b24bbS 0828200 LIT Page 10 EN IS0 14847: 1999 6.6 Shafts 6.6.1 IS0 249 1. Shafts with rectangular or square parallel keys shall comply with
