1、BRITISH STANDARDBS EN 15081:2007Industrial valves Mounting kits for part-turn valve actuator attachmentThe European Standard EN 15081:2007 has the status of a British StandardICS 23.060.99g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51
2、g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15081:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2007 BSI 2007ISBN 978 0 580 54764 5National forewordThis British Standard is th
3、e UK implementation of EN 15081:2007.The UK participation in its preparation was entrusted by Technical Committee PSE/7, Industrial valves, to Subcommittee PSE/7/1, Valves Basic standards.A list of organizations represented on this committee can be obtained on request to its secretary.This publicati
4、on does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROP
5、ISCHE NORMEN 15081October 2007ICS 23.060.99English VersionIndustrial valves - Mounting kits for part-turn valve actuatorattachmentRobinetterie industrielle - Kits de montage pourraccordement des actionneurs fraction de tourIndustriearmaturen - Montagestze fr Anschlsse vonSchwenkantrieben an Armature
6、nThis European Standard was approved by CEN on 26 August 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical refer
7、ences concerning such nationalstandards may be obtained on application to the CEN 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 by translationunder the responsibility of a CEN member int
8、o its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
9、ithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007
10、CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15081:2007: EEN 15081:2007 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Design requirements .5 4.1 General5 4.2 Materials .5 4.3 Design
11、temperature .6 4.4 Environmental corrosion protection6 4.5 Mounting kit6 4.6 Coupling .7 4.7 Designation 7 4.8 Position indicator.8 4.9 Buried service 8 4.10 Safety requirement (mechanical/thermal protection) 8 4.11 Orientation8 4.12 Additional anti-rotation means.8 4.13 Valve/actuator package maint
12、enance8 5 Dimensions.9 5.1 Bracket9 5.2 Valve top flange .10 5.3 Coupling .10 5.4 Spools and adapter flanges12 6 Marking .12 6.1 General12 6.2 Mandatory information12 6.3 Optional information .12 7 Documentation.12 7.1 Language 12 7.2 Product documentation 12 Annex A (normative) Coupling axial clear
13、ance13 Annex B (informative) Proposed stem details for ball and butterfly valves15 B.1 General15 B.2 Proposed stem details for ball valves .16 B.3 Proposed stem details for butterfly valves .16 Bibliography 18 EN 15081:2007 (E) 3 Foreword This document (EN 15081:2007) has been prepared by Technical
14、Committee CEN/TC 69 “Industrial valves”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2008, and conflicting national standards shall be withdraw
15、n at the latest by April 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the
16、national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw
17、ay, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 15081:2007 (E) 4 1 Scope This European Standard provides requirements for metallic mounting kits for part-turn on-off valves and actuator attachments to enable safe and reliable operation. It inc
18、ludes all components transmitting torques from actuators to valves with a maximum flange torque up to 16 000 Nm (up to F30 flange type). It applies to part-turn valves and actuators having attachment flanges and drive components as described in EN ISO 5211. It includes recommendations and methods fo
19、r design and environmental corrosion protection. When reference is made to this European Standard, all the requirements apply, unless otherwise agreed between the purchaser and the manufacturer/supplier, prior to order. For the scope of this European Standard, the term “Valve” covers valve or shaft
20、extension top-flange. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 7
21、36-1:1995, Valves Terminology Part 1: Definition of types of valves EN 736-2:1997, Valves Terminology Part 2: Definition of components of valves EN 736-3:1999, Valves Terminology Part 3: Definition of terms EN ISO 5211:2001, Industrial valves Part-turn valve actuator attachments (ISO 5211:2001) 3 Te
22、rms and definitions For the purposes of this document, the terms and definitions given in EN 736-1:1995, EN 736-2:1997 and EN 736-3:1999 and the following apply. 3.1 mounting kit kit comprising an intermediate support, coupling and bolting 3.2 intermediate support mechanical component (bracket, spoo
23、l, adapter flange) that allows the attachment between a part-turn valve and actuator 3.3 coupling driven component that allows torque transmission from an actuator driving component to the valve shaft and which includes a position indicator 3.4 axial coupling clearance clearance to ensure that there
24、 is axial movement between the actuator and the valve stem to avoid thrust being applied between the driving and driven components EN 15081:2007 (E) 5 3.5 part-turn actuator actuator that transmits torque to the valve for a rotation of one revolution or less and which does not have to be capable of
25、withstanding thrust 3.6 valve top flange part of the valve which allows the attachment of actuating devices and ancillaries via an intermediate support 3.7 valve shaft part of the valve transmitting the drive torque to the obturator 3.8 part-turn actuator attachment attachment interface of the actua
26、tor which includes: flange necessary to attach the part-turn actuator to the intermediate support; driving component of the part-turn actuator necessary to attach it to the coupling or to the driven component of the valve, which may be an integral part or a removable component of the actuator 3.9 ma
27、ximum actuator output torque maximum output torque of the actuator available at the maximum motive energy input 3.10 maximum allowable shaft torque (MAST) maximum torque that can be applied to all the driven components, without damage and/or plastic deformation being sustained by any part 4 Design r
28、equirements 4.1 General Part-turn actuators shall be in accordance with EN ISO 5211. 4.2 Materials Unless otherwise agreed, mounting kit materials shall be: for intermediate supports, of cast iron (CI), carbon steel (CS) or stainless steel (SS); for coupling, see performance classes (Table 2); for b
29、olting (environmental corrosion categories according to Table 1): categories C2 and C3: stainless steel or a suitably corrosion protected carbon steel; categories C4 and C5-I: stainless steel; other categories: material to be specified by the purchaser. Special care shall be taken for material selec
30、tion, in the event of environmental critical conditions. EN 15081:2007 (E) 6 4.3 Design temperature The mounting kit shall be designed for operation at an ambient temperature range between 20 C and + 60 C. 4.4 Environmental corrosion protection Mounting kits shall be protected against corrosion by s
31、uitable material selection and/or surface treatment. The manufacturers technical documentation shall specify the choice of the materials and/or the type of the surface treatment. Surface treatment system for carbon or low-alloy steels (e.g. according to EN 10025) shall be chosen according to the cla
32、ssification categories given in Table 1. Test assessment and test procedures are the responsibility of the manufacturer. NOTE Table 1 may be used to define the corrosion category and help the mounting kit manufacturers to define the surface treatment for corrosion protection. Table 1 Environmental c
33、orrosion categories Typical environments Corrosion category Exterior Interior C2 (low) Atmospheres with low level of pollution. Mostly rural areas. Unheated buildings where condensation may occur, e.g. depots, sport halls. C3 (medium) Urban and industrial atmospheres, moderate sulphur dioxide pollut
34、ion. Coastal areas with low salinity. Production rooms with high humidity and some air pollution, e.g. food-processing plants, laundries, breweries. C4 (high) Industrial areas and coastal areas with moderate salinity. Chemical plants, swimming pools, coastal shipyards. C5-I (very high - industrial)
35、Industrial areas with high humidity and aggressive atmosphere. Buildings or areas with almost permanent condensation and with high pollution. C5-M (very high marine) Coastal and offshore areas with high salinity. Buildings or areas with almost permanent condensation and with high pollution. Immersed
36、 in water or buried in soil: Im 1 (Immersed in fresh water) River installations, hydro-electric power plants. Im 2 (Immersed in sea or brackish water) Harbour areas and offshore structures. Im 3 (buried in soil) Buried pipelines NOTE This table is taken from EN ISO 12944-2:1998. 4.5 Mounting kit 4.5
37、.1 Stiffness The dimensions of the mounting kit given in this European Standard ensure that the maximum flange torque - given in Table 1 of EN ISO 5211 - can be transmitted safely. For non-vertically mounted actuators, the user may need to design an extra support. EN 15081:2007 (E) 7 When specified
38、by the purchaser, the mounting kit shall also be designed for external loads (e.g. stepping load, earthquake, wind loading, additional plant induced dynamic loads). In this case, for instance, the thickness as given in Table 3 may be increased. 4.5.2 Intermediate support style The intermediate suppo
39、rt provides two equal or different attachment interfaces (actuator and valve), as per EN ISO 5211. The most common type is a “rectangular” bracket, as defined in 5.1. The “rectangular“ type is predominantly manufactured from a rectangular or square tube in compliance with EN 10219-2 or EN 10210-2. T
40、he “rectangular“ type can also be cast, fabricated or machined. Other commonly used types are the following: “adapter flange”: generally manufactured as one piece from casting, forging, plate or bar. It shall be provided with a suitable venting device; “spool type“: generally manufactured from two f
41、langes that correspond to the mating faces of valve and actuator, connected together by a piece of tube. The assembly is welded together to form a spool piece. The “spool“ type can also be in one piece: cast, forged or machined. The spool shall be provided with a suitable venting device and/or with
42、a suitable opening to visualise the coupling position. Other types of intermediate support may be used provided they meet the requirements of this European Standard. 4.6 Coupling The design of the coupling shall ensure the maximum transmissible torque (as specified in EN ISO 5211), can be delivered
43、to the valve shaft. The coupling performance class shall be specified by the purchaser in accordance with Table 2. The design of both coupling ends (driven/driving) shall avoid any contact between moving and fixed parts. Table 2 Coupling performance classes Coupling tolerances driven end / driving e
44、nd Performance designation Examples of material types Minimum yield strength type N/mm2Class 1 Class 2 Group A Austenitic stainless steels, nickel based alloys, carbon steel 200 g9 / H10 g6 / H7 Group B Duplex steels, martensitic stainless steels 450 g9 / H10 g6 / H7 4.7 Designation Mounting kits sh
45、all be designated as follows: a) mounting kit style: adaptor flange (AF), bracket (BR), spool (SP) or other (OT) followed by the intermediate support material as per 4.2 (CI, CS or SS); b) flange designations according to EN ISO 5211 (actuator flange type/valve flange type); c) coupling drive identi
46、fication (first for the actuator and second for the valve): EN 15081:2007 (E) 8 coupling driven (actuator side) diagonal square “D” designation, as per EN ISO 5211, followed by dimension saas per Table 4; coupling driving (valve side) designation either to Clause 6 of EN ISO 5211:2001 (additional ca
47、pital letters with actual dimensions d7or s) or to specified / agreed dimensions, followed by actual dimensions l8and l7in mm (see Figure A.1); d) environmental corrosion category as per Table 1; e) performance group/class as per Table 2. EXAMPLE EN 15081 - BR/CI - F07/F05 - D 14/H 11-11-24 - C3 - B
48、1. NOTE The designation is not a marking requirement. 4.8 Position indicator The coupling design shall have a provision for a clear and permanently marked indicator to show whether the valve is open or closed: special attention, during the assembly, should be taken when installing square drive coupl
49、ings. 4.9 Buried service When buried service is required, design details and corrosion protection shall be agreed between the purchaser and manufacturer/supplier. 4.10 Safety requirement (mechanical/thermal protection) The adapter flange or the spool shall have a provision for venting any leakage that may occur through the stem seal of the valve or from the actuator hydraulic/pneumatic supply. This may be obtained either by including a suitable vent or a pressure relief safety valve. 4.11 Orientation The mounting kit shall be
