1、ISO 9669 90 4851903 0508243 374 INTERNATIONAL STANDARD Series 1 freight containers - Interface connections for tank containers AMENDMENT 1 : Sections 3 and 4 ISO 9669 First edition 1990-10-15 AMENDMENT1 1992-07-01 Conteneurs de la serie 1 - Interfaces des equipements pour conteneurs-citernes AMENDEM
2、ENT 1: Sections 3 et 4 Reference number ISO 9669 : 1990/ Amd.1 : 1992 (E) ISO 9669 90 4851903 0508244 200 ISO 9669 : 1990/ Amd.1 : 1992 (E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepar
3、ing 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 to be represented on that committee. International organizations, govern mental and non-governmental, in l
4、iaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publica
5、tion as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Amendment 1 to International Standard ISO 9669 : 1990 was prepared by Technical Committee ISO/TC 104, Freight containers, Sub-Committee SC 2, Specific purpose containers. Annex A of this amendme
6、nt is for information only. ISO 1992 All rights reserved. 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 the publisher. International Organization for Standardiz
7、ation Case postale 56 CH-1211 Geneve 20 Switzerland Printed in Switzerland ii ISO 9669 90 4851903 0508245 147 ISO 9669 : 1990/ Amd.1 : 1992 (E) Series 1 freight containers - Interface connections for tank containers AMENDMENT 1 Sections 3 and 4 After section 2, add the following sections and annex.
8、Section 3: Man-hole openings and man-hole lids for tank containers of type codes 70 to 76 and 85 to 88 3.1 General This section specifies certain dimensions and characteristics of man-hole openings and man-hole lids, primarily to ensure that tank containers are equipped with openings of sufficient s
9、ize to allow complete internal inspection and cleaning, and to provide ease of filling and easy passage of persons in an emergency. In addition, the dimensions and characteristics specified also simplify emergency maintenance and parts replacement by pro viding compatibility between manufacturing so
10、urces. The dimensions and characteristics specified are applicable to tank containers complying with the requirements of ISO 1496-3, in tended to contain liquids or pressurized dry bulk, with a specified test pressure not exceeding 600 kPa1l, i.e. tank containers of type codes 70 to 76 and 85 to 88.
11、 Except where otherwise stated, the requirements of this Inter national Standard are minima. Tank containers to be used for the carriage of dangerous goods may be subject to additional inter national and national requirements as applied by competent authorities. 1) 100 kPa = 1 bar 3.2 Dimensions and
12、 characteristics 3.2.1 General The dimensions specified in this section relate particularly to the man-hole access opening into the tank. However, the use of the dimensions specified for hinge pins and sealing ring cross-sections should be considered when designing other tank openings closed by lids
13、 for example cleaning apertures above the cargo level. Care should be taken to ensure stability of the man-hole lid in the open position. 3.2.2 Pressure requirements Man-hole openings and man-hole lids shall be constructed to a recognized pressure vessel code. 3.2.3 Opening diameter The internal di
14、ameter of the man-hole opening shall be 500 mm 1 mm (A on figure 2). Maximum out-of-roundness shall not exceed 5 mm. 1 ISO 9bb9 90 4851903 0508246 083 ISO 9669 : 1990/ Amd.1 : 1992 E) 3.2.4 Man-hole lid sealing ring 3.2.4.1 The man-hole lid sealing ring shall be positively re tained in the man-hole
15、lid, not in the neckring (see figure 2). 3.2.4.2 The nominal internal diameter of the man-hole lid seal ing ring shall be 490 mm (Bon figure 2). 3.2.4.3 The nominal cross-section of the man-hole lid sealing ring shall be 16 mm wide by 10 mm deep or 16 mm square. 3.2.4.4 The man-hole lid hinge shall
16、be slotted to allow the use of 16 mm wide by 10 mm deep or 16 mm square sealing rings. 3.2.5 Swing bolts 3.2.5.1 There shall be six swing bolts, equally spaced around the man-hole circumference (see figure 2). c /IE x-x f/JB f/JA 3.2.5.2 Swing bolt hinge pins shall be located on a 285 mm radius circ
17、le at their centre (Con figure 2). 3.2.5.3 Swing bolt hinge pins shall be 19 mm in diameter (D on figure 2). 3.2.5.4 Swing bolt threads (see figure 2, dimension El are not specified in this International Standard. However, to ensure compatibility, it is recommended that the swing bolt thread should
18、be ISO general purpose metric screw thread M20 (see ISO 261 11). 3.2.6 Slots for swing bolts Slots for swing bolts shall have a nominal width of 22 mm (Fon figure 2), with provision to prevent the swing bolt from slipping out of the slot as it is tightened. 3.3 Marking Man-hole lids shall be permane
19、ntly marked with their design maximum allowable working pressure and test pressure. Sealing ring Figure 2 - Man-hole and man-hole lid dimensions 2 ISO 9669 90 4851903 0508247 T1T ISO 9669 : 1990/ Amd.1 1992 (E) Section 4: Inlet and outlet connection screw threads for tank containers of type codes 70
20、 to 76 and 85 to 88 4.1 General This section specifies a range of screw threads for threaded in terface connections for tank containers complying with ISO 1496-3, of type codes 70 to 76 and 85 to 88, i.e. tank con tainers for liquids and pressurized dry bulk with a specified test pressure not exceed
21、ing 600 kPa. The threaded interface connections for which the screw threads are applicable are the final connections used to inter face with external loading/discharge equipment, external heating and cooling sources, and air and inert gas pressure sup plies. The screw threads specified conform to IS
22、O 228-1 rz1 and, for the external threads, to tolerance class A. 4.2 Symbols The following symbols are used in 4.4, figure 3 and table 2. A Tighter class of tolerance of external pipe threads where pressure-tight joints are not made on the threads d Basic major diameter of the external thread d 1 =
23、d - 1,280 654 P; basic minor diameter of the external thread dz = d - 0,640 327 P; basic pitch diameter of the external thread D = d; basic major diameter of the internal thread D 1 = D - 1,280 654 P = d 1 ; basic minor diameter of the internal thread Dz = D - 0,640 327 P = dz; basic pitch diameter
24、of the internal thread G Pipe thread where pressure-tight joints are not made on the threads h Height of the thread profile with rounded crests and roots H Height of the triangle of the thread profile P Pitch r Radius of rounded crests and roots T Truncated form of thread T d Tolerance on the major
25、diameter of the external thread Tdz Tolerance on the pitch diameter of the external thread T D1 Tolerance on the minor diameter of the internal thread T DZ Tolerance on the pitch diameter of the internal thread 4.3 Dimensions The dimensions of the screw threads shall be as given in table 2 and as il
26、lustrated in figure 3. The crests of external threads shall be truncated to the limits of tolerance on the major diameter as given in table 2. 4.4 Designation For the purposes of this International Standard a simplified designation is used rather than the full designation in accord ance with ISO 228
27、1. EXAMPLE For the purposes of this International Standard, the designation G 1/2 T indicates a 1 /2 thread in accordance with ISO 228-1, with the external thread truncated. The full designation in accordance with ISO 228-1 is Internal thread: Pipe thread ISO 228-1 - G 1/2 External thread: Pipe thread ISO 228-1 - G 1 /2 A NOTE - ISO 228-1 contains no symbol to indicate a truncated thread. 3
