1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 10094-1:2010Pneumatic fluid power Electro-pneumatic pressurecontrol valvesPart 1: Main characteristics to include in thesuppliers literatureBS ISO 10094-1:2010 BRITISH STA
2、NDARDNational forewordThis British Standard is the UK implementation of ISO 10094-1:2010.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/18/-/5, Control components.A list of organizations represented on this committee can beobtained on request to its secretary.This pu
3、blication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 66275 1ICS 23.100.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the
4、authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS ISO 10094-1:2010Reference numberISO 10094-1:2010(E)ISO 2010INTERNATIONAL STANDARD ISO10094-1First edition2010-10-15Pneumatic fluid power Electro-pneumatic pressure cont
5、rol valves Part 1: Main characteristics to include in the suppliers literature Transmissions pneumatiques Appareils lectropneumatiques de distribution commande continue de pression Partie 1: Principales caractristiques inclure dans la documentation des fournisseurs BS ISO 10094-1:2010ISO 10094-1:201
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9、OPYRIGHT PROTECTED DOCUMENT ISO 2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address be
10、low or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedBS ISO 10094-1:2010ISO 10094-1:2010(E) ISO 2010
11、 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Symbols and units.2 5 Characteristics.3 5.1 General .3 5.2 Electric characteristics .3 5.3 Static characteristics 3 5.4 Dynamic characteristics .8 6 Identification statement
12、 (reference to this part of ISO 10094) .14 Bibliography15 BS ISO 10094-1:2010ISO 10094-1:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internat
13、ional Standards is normally carried out through ISO technical committees. 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 I
14、SO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical c
15、ommittees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to th
16、e possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 10094-1 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 5, Control products and comp
17、onents. ISO 10094 consists of the following parts, under the general title Pneumatic fluid power Electro-pneumatic pressure control valves: Part 1: Main characteristics to include in the suppliers literature Part 2: Test methods to determine main characteristics to include in the suppliers literatur
18、e BS ISO 10094-1:2010ISO 10094-1:2010(E) ISO 2010 All rights reserved vIntroduction In pneumatic fluid power systems, power is transmitted and controlled through a gas under pressure within a circuit. When it is required to track precisely a variable pressure set point or when precise pressure regul
19、ation is needed, electro-pneumatic continuous pressure control valves can be used. These control valves continuously modulate the pneumatic power of a system in response to a continuous electrical input signal and link the electrical input value to a proportional pressure value. It is therefore nece
20、ssary to know some performance characteristics of these electro-pneumatic continuous pressure control valves in order to determine their suitability. BS ISO 10094-1:2010BS ISO 10094-1:2010INTERNATIONAL STANDARD ISO 10094-1:2010(E) ISO 2010 All rights reserved 1Pneumatic fluid power Electro-pneumatic
21、 pressure control valves Part 1: Main characteristics to include in the suppliers literature 1 Scope This part of ISO 10094 specifies which characteristics of electro-pneumatic continuous pressure control valves are to be included in the suppliers literature. In accordance with ISO 5598, these contr
22、ol valves include electrically modulated pneumatic proportional pressure valves, pressure proportional control valves, and pressure servo-valves (closed loop). NOTE 1 The characteristics of non-electrically modulated pneumatic pressure control valves are specified in ISO 6953-1. NOTE 2 The character
23、istics of electro-pneumatic continuous flow control valves are specified in ISO 10041-1. NOTE 3 This part of ISO 10094 is limited to the characterization of components with an exhaust port to the atmosphere. 2 Normative references The following referenced documents are indispensable for the applicat
24、ion 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. ISO 5598, Fluid power systems and components Vocabulary ISO 6953-1, Pneumatic fluid power Compressed air pressure regu
25、lators and filter-regulators Part 1: Main characteristics to be included in literature from suppliers and product-marking requirements ISO 10094-2:2010, Pneumatic fluid power Electro-pneumatic pressure control valves Part 2: Test methods to determine main characteristics to include in the suppliers
26、literature BS ISO 10094-1:2010ISO 10094-1:2010(E) 2 ISO 2010 All rights reserved3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598, ISO 6953-1 and the following apply. 3.1 electro-pneumatic continuous pressure control valve control valve which cont
27、inuously modulates the pneumatic power of a system in response to a continuous electrical input signal and which links the electrical input quantity to a pressure value 3.2 inlet pressure pressure at inlet port of a component, piping or system 3.3 electrical control signal electrical signal applied
28、to a control device, also called set signal 3.4 control signal/pressure characteristic curve graphical representation of the relationship between the regulated pressure and the electrical control signal on its full scale while the forward flow rate or the relief flow rate is null, at constant inlet
29、pressure 3.5 minimum regulated pressure pressure at the first point of the control signal/pressure characteristic curve 3.6 flow/pressure characteristic curve graphical representation of the relationship between the regulated pressure and the forward flow rate or the relief flow rate while the contr
30、ol signal and the inlet pressure are maintained constant 3.7 pressure regulation characteristic variation of the regulated pressure for a given control signal, under the effect of an inlet pressure variation, measured for a defined flow 4 Symbols and units For the purposes of this document, the symb
31、ols and units listed in Table 1 apply. Table 1 Symbols and units Description Symbol SI unit Total relative pressure at the inlet portap1Pa Total relative pressure at the outlet portap2Pa Total relative pressure at the exhaust portap3Pa Hysteresis H % Linearity L % Repeatability r Resolution S a In a
32、ccordance with ISO 11727. BS ISO 10094-1:2010ISO 10094-1:2010(E) ISO 2010 All rights reserved 35 Characteristics 5.1 General Descriptive literature covering electro-pneumatic continuous pressure control valves shall include the characteristics given in 5.2 to 5.4. The data provided by the supplier s
33、hall assist the user to select the best-suited electro-pneumatic continuous pressure control valve for the particular application. 5.2 Electric characteristics The required minimum voltage, the required minimum current and the required minimum power of the power supply shall be given. 5.3 Static cha
34、racteristics 5.3.1 Control signal/pressure characteristics at null forward flow rate or relief flow rate 5.3.1.1 Characteristic curve The regulated pressure, p2, at null forward or relief flow rate shall be indicated on a graph as shown in Figure 1. This curve describes the measured regulated pressu
35、re versus the electrical control signal on its full scale, for a given inlet pressure, p1, indicated as a relative value as shown in Figure 1. The test shall be performed in accordance with ISO 10094-2:2010, 7.2.1. The characteristic straight line shall be plotted in accordance with ISO 10094-2:2010
36、, 7.3.1, taking, for each value of control signal, the mean value of two measured pressures with respectively an increasing and decreasing control signal. The offset value and the slope of the characteristic straight line shall be indicated on the graph as shown in Figure 1. 5.3.1.2 Linearity The li
37、nearity, L, expressed as a percentage of the regulated pressure full-scale, shall be calculated in accordance with ISO 10094-2:2010, Equation (1). The obtained value gives the maximum difference between the regulated pressure mean values and the characteristic straight line shown in Figure 1. 5.3.1.
38、3 Control signal/pressure hysteresis The hysteresis, H, expressed as a percentage of the regulated pressure full-scale, shall be calculated in accordance with ISO 10094-2:2010, Equation (2). The obtained value gives the maximum difference between the regulated pressure values measured with both an i
39、ncreasing and decreasing control signal. The hysteresis can also be expressed as an absolute value. BS ISO 10094-1:2010ISO 10094-1:2010(E) 4 ISO 2010 All rights reservedKey X electrical control signal, % a Offset. d95 % of p2, max.Y regulated pressure p2, in kPa b Slope. e5 % of p2, max.p1inlet pres
40、sure cp2, max.Figure 1 Control signal/pressure characteristic curve at null forward flow rate or relief flow rate 5.3.1.4 Minimum regulated pressure The test shall be performed in accordance with ISO 10094-2:2010, 7.2.2. The minimum regulated pressure corresponds to the pressure at the first point w
41、hich is within the allowable limits of linearity of the control signal/pressure characteristic curve determined in 5.3.1.2, as shown in Figure 2. The minimum regulated pressure, expressed as a percentage of the regulated pressure full-scale, shall be determined in accordance with ISO 10094-2:2010, 7
42、.3.4. The measured points corresponding to the test of ISO 10094-2:2010, 7.2.2, the minimum regulated pressure, as well as the offset, shall be indicated on a graph as shown in Figure 2. BS ISO 10094-1:2010ISO 10094-1:2010(E) ISO 2010 All rights reserved 5Key X electrical control signal, % a Offset.
43、 Y regulated pressure p2, in kPa b Minimum regulated pressure. 1 characteristic line Figure 2 Definition of the minimum regulated pressure and of the offset on the control signal/pressure characteristic curve at null flow rate 5.3.1.5 Resolution The resolution, w, corresponds to the minimal differen
44、ce between two control signal values for which there is a difference in the corresponding regulated pressure values. The test shall be performed in accordance with ISO 10094-2:2010, 7.2.3. The resolution, w, expressed in percentage of the control signal full-scale, shall be determined in accordance
45、with ISO 10094-2:2010, 7.3.5. 5.3.1.6 Repeatability The repeatability, r, corresponds to the maximal dispersion in regulated pressure, for a given electrical control signal. The test shall be performed in accordance with ISO 10094-2:2010, 7.2.4. The repeatability, r, expressed as a percentage of the
46、 regulated pressure full-scale, shall be determined in accordance with ISO 10094-2:2010, 7.3.6. BS ISO 10094-1:2010ISO 10094-1:2010(E) 6 ISO 2010 All rights reserved5.3.2 Flow/pressure characteristics 5.3.2.1 Characteristic curves The regulated pressure shall be indicated by curves according to the
47、graph shown in Figure 3. Each curve will describe the regulated pressure versus the forward flow rate and the relief flow rate, for a given inlet pressure indicated as a relative value as shown in Figure 3. This graph shall have five curves differing by the settings of the electrical control signal.
48、 These settings and the test procedure shall be performed in accordance with ISO 10094-2:2010, 8.3. Each curve shown in Figure 3 is plotted in accordance with ISO 10094-2:2010, 8.4.1, taking, for each value of flow rate, the median value of two pressures measured with respectively increasing and dec
49、reasing flow rates. Key X1 relief flow rate, in dm3/s (ANR) 1 1st quadrant X2 forward flow rate, in dm3/s (ANR) 2 2nd quadrant Y regulated pressure p2, in kPa p1inlet pressure Figure 3 Flow/pressure characteristic curves 5.3.2.2 Flow/pressure hysteresis The hysteresis, H, expressed as a percentage of the regulated pressure full-scale, shall be calculated in accordance with ISO 10094-2:2010, 8.4.2. The obtained value gives the maximum difference between the regulated pressure values
