1、BRITISH STANDARD Pneumatic fluid power - Identification of ports and control mechanisms of control valves and other components ICs 23.100.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGH LAW BS IS0 1172R1999 COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed
2、 by Information Handling ServicesSTD-ES1 BS IS0 11727-ENGL 1999 Lb24669 0788742 723 = BS IS0 11727:1999 direction of the Engineering AmdNo. Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 1999 National foreword Date Comments This Britis
3、h Standard reproduces verbatim IS0 11727: 1999 and implements it as the K national standard. The UK participation in its preparation was entrusted to Technid Committee MCW18, Fluid power systems and components, which has the responsibility to: - aid enquirem to understand the text; - present to the
4、responsible internationallEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related intemational and European developments and promulgate them in the UK A list of organizations represented on this committee can be obtained
5、on request to its 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 entitled “International Standards Correspondence Index”, or by using the “Find” facili
6、ty of the BSI Standards Electsonic 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 obligati
7、ons. Summary of pages This document comprises a front cover, an inside front cover, the IS0 title page, pages ii to iv, pages 1 to 11 and a back cover. The BSI copyright notice displayed throughout this document indicates when the document was last issued O BSI 07-1999 ISBN O 680 32635 7 COPYRIGHT B
8、ritish Standards Institute on ERC Specs and StandardsLicensed by Information Handling ServicesSTD.BS1 BS IS0 11727-ENGL 1777 Lb24bb7 0788743 bbT BS IS0 11727:1999 INTERNATIONAL STANDARD IS0 11 727 First edition 199945-01 Pneumatic fluid power - Identification of ports and control mechanisms of contr
9、ol valves and other components Transmissions pneumatiques - Identification des orifices et des mcanismes de commande des distributeurs de commande et autres composants Reference number IS0 1 1727: 1 999( E) COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handl
10、ing Services STD-BSI BS IS0 l11727-ENGL 1999 lb24bb9 0788744 5Tb BS IS0 11727:1999 Contents 1 scope 1 2 Normative reference 1 3 Terms and definitions . 1 4 General principles 3 5 Directional control valves . 3 5.1 Um of singledigit ickntif2caon numbers . 3 5.2 Use of two-digit identification numbers
11、 . 3 5.3 Manifold port identificetbns 5 5.4 External pilot supply port identification . 6 5.5 Pilot exhaust ports identification 6 6 Quick exhaust. shuttle and lockout valves . 6 7 Shut-off valves . 6 8 Flow control valves. nwi-return (check) valves and relief valves . 6 9 Pressure regulators and fi
12、r-ulators 7 10 Filters, lubricators and ancillary units . 7 11 Examplee 7 12 Identification statement 7 Annex A (informative) Symbols giving examples of identification 8 Bibliography 11 COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling ServicesSTD-BSI B
13、S IS0 LL727-ENGL L999 0 3624669 0788745 432 W BS IS0 11727:1999 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical co
14、mmittees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with th
15、e International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards ar0 drafted in accordance with the rules given in the ISOAEC Directives, Part 3. Draft Intemational Standards adopted by the technical committees are circulated to the member
16、 bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standards IS0 11727 was prepared by Technical Committee ISO/TC 131, Fluid power systems, 5ubcommittee SC 5, Confrolproducfs and components. Annex A of th
17、is International Standard is for information only. iii COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling ServicesSTD-BSI BS IS0 L172?-ENGL 1999 II Lb24bb9 078874b 379 W BS IS0 11727:1999 Introduction In pneumatic fluid power systems, power is transmitte
18、d and controlled through a gas under pressure within a circuit. Flow is directed through and blocked from selected passages in the several components of a pneumatic system. Identification of the ports and the control mechanisms permits the user to properly connect components in a system when using a
19、 circuit diagram. COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling Services- STDmBSI BS IS0 11727-ENGL 1999 m lb24bb9 0788747 205 D BS IS0 11727:1999 Pneumatic fluid power - Identification of ports and control mechanisms of control valves and other com
20、ponents 1 scope 1.1 This Intemational Standard includes rules for identifying and marking ports in pneumatic directional control valves. These ports are the main flow connections, control connections and pilot supply connections. 1.2 This Intemational Standard includes rules for identifying and mark
21、ing electrical leads for solenoids. It is not applicable to internal electrical connections across manifold sections, such as connections to bus systems. 1.3 This International Standard includes rules for identifying and marking control mechanisms of directional control valves. 1.4 This Intemational
22、 Standard includes rules for identifying and marking ports and/or flow path directions in filters, regulators, lubricators, non-return (check) valves, flow control valves and other ancillary devices. 1.5 This International Standard does not include rules for identifying and marking ports on proporti
23、onal pneumatic valves, air logic valves, cylinders, air motors, semi-rotary actuators, air compressors, air dryers or other devices not specifically described in this International Standard. 2 Normative reference The following normative document contains provisions which, through reference in this t
24、ext, constitute provisions of this Intemational Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re
25、cent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IS0 and IEC maintain registers of currently valid Intemational Standards. IS0 5598, Fluid power systems and components - Vocabulary. 3 Terms an
26、d definitions For the purposes of this International Standard, the terms and definitions given in IS0 5598 and the following apply. 3.1 control mechanism device that provides an input signal to a component (e.g. lever, solenoid) NOTE is preferred. The terms “operator“ and “actuator“ have sometimes b
27、een used for this definition, but the term “control mechanism“ 3.2 port that is subject to a change in pressure, usually an applied pressure signal from an external source, that produces a change in state of the component under control pilot control port 1 COPYRIGHT British Standards Institute on ER
28、C Specs and StandardsLicensed by Information Handling ServicesSTD.BSI BS IS0 11727-ENGL 3999 E llb24bb9 0788748 141 E BS IS0 11727:1999 3.3 external pilot rupply port port that receiv8s a continuous, uninterrupted supply of pressure from an external source for use by a control mechanism 3.4 main por
29、ts ports in a component that are either connected to one another or blocked upon actuation by the control mechanism 3.5 solenoid lead electrical wires directly attached to a solenoid winding 3.6 elemic lead electrical wires communicating with an electrically operated valve that are used for field co
30、nnections. NOTE connections. These might not be directly attached to a solenoid winding when the valve has electrical circuitry or other internal 3.7 normally closed (NC) valve valve that, in its normal position (as defined in IS0 5598), has its inlet port closed 3.8 normally open (NO) valve valve t
31、hat, in its normal position (as defined in IS0 5598), has its inlet port connected to its outlet port 3.9 diverter valve 3/2 directional control valve with a single inlet port that can divert flow to either of two separate outlet ports 3.10 seiector valve 3/2 directional control valve with a single
32、outlet port, flow to which can be selected from either of two separate inlet ports 3.1 1 lockout valve manually controlled valve that has two operating positions NOTE The first position allows normal passage of pressurized fluid into a machine or system. The second prevents the passage of fluid from
33、 the inlet and allows a discharge of the pressurized fluid from a machine or system. The control device is capable of being locked, by a key or combination padlock, in the second position only. 3.12 ientification means of reference to be used in descriptive literature or on a label associated with a
34、 component 3.13 mark means of reference to be applied directly on the component 3.14 pilot exhaust port exhaust port associated with a control mechanism which provides an exhaust or relief function which is not part of the actual control function 2 COPYRIGHT British Standards Institute on ERC Specs
35、and StandardsLicensed by Information Handling Services- STD-BSI BS IS0 11727-ENGL 1979 m lb24bb 0788747 O88 BS IS0 11727:1999 3.16 3/2 directional control valve supplied as a normally closed valve, and marked or identified as such, but constructed so that the inlet and exhaust connection can be inte
36、rchanged to provide a normally open mode of operation 3/2 normiilly open optioilcii wive 3.16 5i2 Optionpl dual pressum vaive 5i2 directional control valve with standard main port identification, but which is constructed so that the exhaust ports 5 and 3 can be used as separate inlets and the normal
37、 inlet port 1, used as a common exhaust port 4 General principles 4.1 The numerals used in this International Standard are the principal means of port identification based on the preoedence established in IS0 5599-1, IS0 5599-2 and IS0 5599-3. Some exceptions are defined for pilot supply ports in va
38、lves and for flow direction arrows in two-ported devices. 4.2 Main ports are identified by single-digit numbers. 4.3 Control mechanisms, the pilot control ports and their electrical leads are identified by double-digit numbers. The first of these digits is the number one (1) and the second digit is
39、the main port that communicates with main port 1 when the correspondingly numbered control mechanism is actuated. If the control mechanism causes main pori 1 to become blocked, a zero (O) is used as the second digit. NOTE 1 Other flow paths may exist or become blocked as a result of a control mechan
40、ism actuation, in addiion to the flow path related to main port 1. These may be determined from the graphic symbol for the valve. NOTE 2 The principle in 4.3, however, does not apply to the centre position of three-position valves or to mechaniceUrnanual control mechanisms that have multiple indepen
41、dent positions. 4.4 Port locations and control mechanism locations are not required to occupy any specific position on a component. Their physical location relative to graphic symbols on a drawing also need not correspond. 5 Directional control valves 5.1 Use of singie-digit identif cation numbers U
42、se the single-digit identification numbers as listed in Table 1 to identify and mark the main ports. Marking shall be placed next to the ports on the component or on labels that are located to identify the ports. 5.2 Use of two-digit identification numbers Use the wo-digit identification numbers as
43、listed in Table 1 to identify and, if desired, mark the control mechanisms and to identiy and mark the pilot control ports (if any exist), plus the solenoid leads (if any exist - see 5.2.1). 3 COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling ServicesST
44、DmBSI BS IS0 11727-ENGL b) colour-coded electrical wiring at the field connection, with instructions directly on the valve, identifying the control mechanism associated with the colour code; c) markings on the terminal block or on the electrical wiring, using the identification numbers described in
45、Table 1, identifying the control mechanism associated with the markings. 4 COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling ServicesSTD-BSI BS IS0 L1727-ENGL 3999 Lb24bb9 0788753 73b m BS IS0 11727:1999 w Vatve Base or two ports - 1 outlet port - 2 7 S
46、hut-off valves These devices are 2/2 valves and, where the direction of flow is not important for valve functioning, no port identification and marking is required. Where the direction of flow is important to the correct functioning of the valve, two options are permitted: a) the inlet port shall be
47、 identified and marked “1 I and the outlet port “2“; or b) instead of numbers, the products may be marked with an arrow that indicates the direction of flow from the inlet port to the outlet port. 8 Flow control valves, non-return (check) valves and relief valves These devices are all two-port valve
48、s with various control mechanisms. A graphic symbol oriented in the direction of its function and located on the product is preferred. The main ports shall be identified and marked as follows: - inlet port - 1; - exhaust or outlet port - 2. Relief valves with an exhaust passage that is not designed
49、for a connection need not have any port markings. 6 COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling ServicesSTD=BSI ES IS0 11727-ENGL L999 M Lb24bb9 0788753 509 BS IS0 11727:1999 3 Pressure regulators and filter-regulators One of the following options shall be selected for inlet and outlet ports: a) the inlet port shall be identified and marked “1“ and the outlet port as “2“; or b) instead of numbers, these products may be marked with an arrow to indicate the flow direction from the inlet to the outlet. A relief pori shall be i
