1、BS ISO 7368:2016 Hydraulic fluid power Two- port slip-in cartridge valves Cavities BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 7368:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 7368:2016. It supersedes BS 7
2、296-1:1990 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MCE/18/-/5, Control components. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessar
3、y provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 87177 1 ICS 23.100.50 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard
4、was published under the authority of the Standards Policy and Strategy Committee on 30 September 2016. Amendments/corrigenda issued since publication Date Text affectedBS ISO 7368:2016 ISO 2016 Hydraulic fluid power Two-port slip-in cartridge valves Cavities Transmissions hydrauliques Distributeurs
5、cartouche, bride, deux orifices Logements INTERNATIONAL STANDARD ISO 7368 Second edition 2016-08-01 Reference number ISO 7368:2016(E)BS ISO 7368:2016ISO 7368:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in Switzerland All rights reserved. Unless otherwise s
6、pecified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below o
7、r ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgBS ISO 7368:2016ISO 7368:2016(E)Foreword iv Introduction v 1 Scope . 1 2 Normative reference
8、s 1 3 Terms and definitions . 1 4 Symbols 1 5 Tolerances . 2 6 Dimensions . 2 7 Identification statement (Reference of this International Standard) .3 Bibliography .36 ISO 2016 All rights reserved iii Contents PageBS ISO 7368:2016ISO 7368:2016(E) Foreword ISO (the International Organization for Stan
9、dardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International 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
10、 to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures
11、used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rule
12、s of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the 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. Details of any patent rights identi
13、fied during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation
14、on the meaning of ISO specific terms and expressions related to conformit y assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html. The committee responsibl
15、e for this document is ISO/TC 131, Fluid power systems, Subcommittee SC 5, Control products and components. This second edition cancels and replaces the first edition (ISO 7368:1989), which has been technically revised. This edition includes the following significant changes with respect to the prev
16、ious edition: New sizes 15 and 16 are introduced; Surface tolerances for sealing purposes are aligned with ISO 3601-2.iv ISO 2016 All rights reservedBS ISO 7368:2016ISO 7368:2016(E) Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure wit
17、hin an enclosed circuit. Typical components found in such systems are hydraulic valves. These devices control flow direction, pressure or flow rate of liquids in the enclosed circuit. ISO 2016 All rights reserved vBS ISO 7368:2016BS ISO 7368:2016Hydraulic fluid power Two-port slip-in cartridge valve
18、s Cavities 1 Scope This document specifies only geometrical data relating to cavities in which two-port hydraulic slip-in cartridge valves are mounted in order to ensure interchangeability. NOTE For example, this document does not specify rated pressures. It applies to cavities for two-port hydrauli
19、c slip-in cartridge valves which are generally applicable to industrial equipment. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applie
20、s. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1302, Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular di
21、mensions without individual tolerance indications ISO 3601-2, Fluid power systems O-rings Part 2: Housing dimensions for general applications ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters 3 Terms and definitions F
22、or the purposes of this document, the terms and definitions given in ISO 5598 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/ /www.electropedia.org/ ISO Online browsing platform: available at http:/ /ww
23、w.iso.org/obp 4 Symbols a) A, B, X, Y, Z 1and Z 2identify ports the operational usage of which, in some cases, may be different from that given in the following examples: 1) A: inlet, service, return corresponding to the placing in the hydraulic circuit; 2) B: inlet, service, return corresponding to
24、 the placing in the hydraulic circuit; 3) X: pilot, inlet; 4) Y: pilot, return; INTERNATIONAL ST ANDARD ISO 7368:2016(E) ISO 2016 All rights reserved 1BS ISO 7368:2016ISO 7368:2016(E) 5) Z 1 : supplementary pilot, inlet; 6) Z 2 : supplementary pilot, return; b) F 1 F 12identify threaded holes for fi
25、xing screws; c) G, G 1and G 2identify the location of pin holes; d) D identifies the fixing screw diameter; e) r maxidentifies the mounting surface edge radius; f) R 1indicates the maximum radius at the bottom of d 1 . The code system used in this document is defined in ISO 5783. NOTE Size 15 and si
26、ze 16 are not yet listed in ISO 5783. 5 Tolerances The following requirements shall be applied to the sealing and chamfer surfaces, i.e. that area within the chain lines: surface roughness (see ISO 3601-2); surface roughness, Rz: as indicated on the figures according to ISO 1302 and ISO 4287; all no
27、n-specified surface finishes: Rz 63; surface roughness values are given in micrometres (m); surface flatness: 0,01 mm over a distance of 100 mm (see ISO 3601-2). The following tolerances shall be complied with along the x, y and z axes with respect to the origin: pin holes: 0,2 mm; screw holes: 0,2
28、mm; port holes: 0,2 mm; general tolerances according to ISO 2768-1 for linear and angular dimensions without tolerances. As for other dimensions, see Figure 1 to Figure 16. 6 Dimensions 6.1 Cavity dimensions for hydraulic slip-in cartridge valves with two main ports shall be selected from Figure 1 t
29、o Figure 16 and Table 1 to Table 16 as specified in 6.2 to 6.17. 6.2 Cavity dimensions for all types of valves, except main system pressure-relief valves, with main ports of 16 mm nominal diameter (size 06) (code 7368 - 06 - 1 - 1 - 16) are specified in Table 1 and shown in Figure 1. 6.3 Cavity dime
30、nsions for main system pressure-relief valves with main ports of 16 mm nominal diameter (size 06) (code 7368 - 06 - 2 - 1 - 16) are specified in Table 2 and shown in Figure 2. 6.4 Cavity dimensions for all types of valves, except main system pressure-relief valves, with main ports of 25 mm nominal d
31、iameter (size 08) (code 7368 - 08 - 3 - 1 - 16) are specified in Table 3 and shown in Figure 3.2 ISO 2016 All rights reservedBS ISO 7368:2016ISO 7368:2016(E) 6.5 Cavity dimensions for main system pressure-relief valves with main ports of 25 mm nominal diameter (size 08) (code 7368 - 08 - 4 - 1 - 16)
32、 are specified in Table 4 and shown in Figure 4. 6.6 Cavity dimensions for all types of valves, except main system pressure-relief valves, with main ports of 32 mm nominal diameter (size 09) (code 7368 - 09 - 5 - 1 - 16) are specified in Table 5 and shown in Figure 5. 6.7 Cavity dimensions for main
33、system pressure-relief valves with main ports of 32 mm nominal diameter (size 09) (code 7368 - 09 - 6 - 1 - 16) are specified in Table 6 and shown in Figure 6. 6.8 Cavity dimensions for all types of valves, except main system pressure-relief valves, with main ports of 40 mm nominal diameter (size 10
34、) (code 7368 - 10 - 7 - 1 - 16) are specified in Table 7 and shown in Figure 7. 6.9 Cavity dimensions for main system pressure-relief valves with main ports of 40 mm nominal diameter (size 10) (code 7368 - 10 - 8 - 1 - 16) are specified in Table 8 and shown in Figure 8. 6.10 Cavity dimensions for al
35、l types of valves, except main system pressure-relief valves, with main ports of 50 mm nominal diameter (size 11) (code 7368 - 11 - 9 - 1 - 16) are specified in Table 9 and shown in Figure 9. 6.11 Cavity dimensions for main system pressure-relief valves with main ports of 50 mm nominal diameter (siz
36、e 11) (code 7368 - 11 - 10 - 1 - 16) are specified in Table 10 and shown in Figure 10. 6.12 Cavity dimensions for all types of valves, except main system pressure-relief valves, with main ports of 63 mm nominal diameter (size 12) (code 7368 - 12 - 11 - 1 - 16) are specified in Table 11 and shown in
37、Figure 11. 6.13 Cavity dimensions for main system pressure-relief valves with main ports of 63 mm nominal diameter (size 12) (code 7368 - 12 - 12 - 1 - 16) are specified in Table 12 and shown in Figure 12. 6.14 Cavity dimensions for all types of valves, except main system pressure-relief valves, wit
38、h main ports of 80 mm nominal diameter (size 13) (code 7368 - 13 - 13 - 1 - 16) are specified in Table 13 and shown in Figure 13. 6.15 Cavity dimensions for all types of valves, except main system pressure-relief valves, with main ports of 100 mm nominal diameter (size 14) (code 7368 - 14 - 14 - 1 -
39、 16) are specified in Table 14 and shown in Figure 14. 6.16 Cavity dimensions for all types of valves, except main system pressure-relief valves, with main ports of 125 mm nominal diameter (size 15) (code 7368 - 15 - 15 - 1 - 16) are specified in Table 15 and shown in Figure 15. 6.17 Cavity dimensio
40、ns for all types of valves, except main system pressure-relief valves, with main ports of 160 mm nominal diameter (size 16) (code 7368 - 16 - 16 - 1 - 16) are specified in Table 16 and shown in Figure 16. 7 Identification statement (Reference of this International Standard) Use the following stateme
41、nt in test reports, catalogues and sales literature when electing to comply with this International Standard: “Cavity dimensions conform to ISO 7368, Hydraulic fluid power Two-port slip-in cartridge valves Cavities.” ISO 2016 All rights reserved 3BS ISO 7368:2016ISO 7368:2016(E) Dimensions and geome
42、trical tolerances in millimetres Key a The dimension specifying the area within the chain lines is the minimum dimension for mounting the cartridge valve cover. The corners of the square may be rounded to a maximum radius, r max , equal to the thread diameter of the fixing screws. Along each axis, t
43、he fixing holes are at equal distances to the valve cover mounting surface edges. b Pilot valves and adjustment devices may exceed this dimension. c This dimension gives the minimum space required for a two-port hydraulic slip-in cartridge valve and its cover with this cavity. The dimension is also
44、the minimum distance from centreline to centreline of two identical cavities on a manifold. The valve manufacturers attention is drawn to the fact that no part of the complete valve assembly shall exceed this dimension. d No burrs permitted in this area; the edges shall be rounded. e Visual examinat
45、ion. f Minimum length over which the specified surface finish shall apply. Figure 1 Cavity for two-port hydraulic slip-in cartridge valves of all types, except main system pressure-relief valves, with main ports of 16 mm nominal diameter (size 06) and square flange cover (code: 7368 - 06 - 1 - 1 - 1
46、6)4 ISO 2016 All rights reservedBS ISO 7368:2016ISO 7368:2016(E) Table 1 Cavity for two-port hydraulic slip-in cartridge valves of all types, except main system pressure-relief valves, with main ports of 16 mm nominal diameter (size 06) and square flange cover Dimensions in millimetres Axis d 1 e d
47、2 e d 3 c d 4 b,c X c Y c Z 1 c Z 2 c F 1 a F 2 a F 3 a F 4 a G d,e R 1 32 H7 25 H7 16 max. 16 4 max. 4 max. 4 max. 4 max. M8 M8 M8 M8 4 H13 max. R 2 x 23 23 23 2 48 23 23 0 46 46 0 12,5 y 23 23 23 23 23 2 48 0 0 46 46 0 z 43 0,2 56 + 0,1 8 min. a The minimum thread depth is 1,8 times the screw diam
48、eter, D. The recommended full thread depth is 2D + 6 mm to facilitate interchangeability of valves and to reduce the number of fixing screw lengths. However, sufficient distance from fixing hole to port B shall be respected. The recommended engagement of fixing screw thread for ferrous mounting is 1
49、,25D. b Suggested diameter of port B, but may be of any size located within the space between the dimensions indicated as 20 mm and 42,5 mm; port B is not necessarily machined and may be provided by casting. c The depth and angle of the pilot ports and the main ports are determined by the graphical layout of the hydraulic circuit and by the location of the valves in the manifold. d Blind hole to accommodate the locating pin on
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