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1、J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association (Reaffirmed : 2002) Equipment for water supply service-Test method of low temperature resistant ICs 91.140.60 Descriptors : waterworks, fluid equipment, fluid equipment components, cold-weather Reference nu
2、mber : JIS S 3200-2 : 1997 (E) tests PROTECTED BY COPYRIGHT 4s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:08:59 MSTNo reproduction or networking permitted without license from IHS -
3、,-,- S 3200-2 : 1997 Foreword This translation has been made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law.
4、This Japanese Industrial Standard specifies the test method of low temperature resistant of the equipment for water supply service of the specification in cold areas, and the Japanese Industrial Standards of the equipment related to this Standard are indicated in a) be- low. In addition to this Stan
5、dard, the standards indicated in b) below are established on the same day for the test method related to the standards on the structure and the material of water supply apparatuses based on the Water Works Law. a) Japanese Industrial Standards related to this Standard 1) JIS A 4413 Piping units for
6、dwellings 2) JIS B 2061 Faucets, ball taps and flush valves 3) JIS B 8410 Pressure reducing valves for water works 4) JIS B 8414 Relief valves for hot water appliances 5) JIS C 9219 Electric storage tank water heaters 6) JIS C 9618 Drinking-water coolers 7) JIS S 2109 Gas burning water heaters for d
7、omestic use 8) JIS S 3021 Oil burning water boilers 9) JIS S 3024 Oil burning water heaters for domestic use 10) JIS S 3027 Oil burning bath boilers with water heaters for domestic use b) Test methods related to the Water Works Law except this Standard 1) JIS S 3200-1 Equipment for water supply serv
8、ice-Test methods of hydrostatic pres- 2) JIS S 3200-3 Equipment for water supply service-Test method of water hammer 3) JIS S 3200-4 Equipment for water supply service-Test method of prevention from 4) JIS S 3200-5 Equipment for water supply service-Test methods of destruction by 5) JIS S 3200-6 Equ
9、ipment for water supply service-Test methods of durability 6) JIS S 3200-7 Equipment for water supply service-Test methods of effect to water sure back current vacuum pressure quality Date of Establishment: 1997-06-20 Date of Reaffirmation: 2002-10-20 Date of Public Notice in Official Gazette: 2002-
10、10-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Consumer Life JIS S 3200-2 : 1997, First English edition published in 2003-04 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts
11、arising as to the contents, the original JIS is to be the final authority. O JSA 2003 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 permis
12、sion in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:08:59 MSTNo reproduction or networking permitted without licen
13、se from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS S 3200-2 : 1997 Equipment for water supply service- Test method of low temperature resistant Introduction This Standard has been established in order to specify the unified test method of low temperature resistant of the equipment for water supply s
14、ervice based on the amendment of “Standard of structure and material of water supply ap- paratuses based on the Water Works Law” in 1997, and to improve the efficiency of understanding and applying the test method, and to achieve the convenience for users. 1 Scope This Standard specifies the test me
15、thod of low temperature resistant of the equipment for water supply service including the valves such as water tap fau- cets, pressure reducing valves and pressure relief valves, house-piping units, elec- tric beverage water coolers, storage type electric water heaters, gas water heater, and kerosen
16、e-fired water heating equipment of the specification for cold area. 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards indicated below shall be applied. JIS S 3
17、200-1 Equipment for water supply service-Test methods of hydrostatic pressure JIS S 3200-3 Equipment for water supply service-Test method of water hammer JIS S 3200-4 Equipment for water supply service-Test method of prevention from back current JIS S 3200-5 Equipment for water supply service-lest m
18、ethods of destruction by vacuum pressure 3 Test apparatus The test apparatuses shall be as indicated in the examples in Figs. 1 and 2, and piping, combination faucets, pressure measuring devices, and pipe materials shall be as follows. a) b) Pipes shall have the diameter not to cause any troubles in
19、 draining. The combination faucets shall be connected to the test apparatus at either the water side or the hot water side. Faucets other than the combination faucets and having a plurality of anti-freezing mechanisms of the same specification shall be connected to the test apparatus at either one o
20、f the mechanisms. The gradient of the horizontal part of the piping shall be at least 1 0 0 . Information : 1 c) The gradient is provided for draining water. Thus, in Fig. 1, the test equipment may be disposed on the upper side or the lower side with respect to the horizontal part of the piping. Whe
21、n the test equipment is disposed on the upper side, the tip of the hori- zontal part of the piping is directed upwardly. When the test equipment is disposed on the lower side, the tip of the horizon- tal part of the piping is directed downwardly. Water is drained from the test equipment. PROTECTED B
22、Y COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:08:59 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 S 3200-2 : 1997 Unit: cm Pressure indicator
23、Pressure source ! (Low temperature test chamber) - Test Control valve Water feedidischarge connection port equipment Fig. 1 Example of test apparatus of equipment except relief valve Unit : cm Pressure source Fig. 2 (Low temperature test chamber) Test equipment Pressure indicator Control valve h y.
24、2-50 Control valve Water feeddischarge connection port Example of test apparatus of relief valve 4 Procedure The procedure of the test shall be as follows: a) The test equipment is fitted to the test apparatus in clause 3 in a regular ser- vice condition, and water at ordinary temperature is passed
25、therethrough. After water flooding is stopped, operations for preventing freezing of water shall be performed according to the specification of the equipment, including water discharge from the pipe, water draining from the test equipment, and heating by a heater, and the test equipment is naturally
26、 left for 10 min. The temperature of the low temperature test chamber shall be dropped gradually from the normal temperature to -20 f 2 OC, and maintained at -20 f 2 “C for 1 h. b) c) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS E
27、mployees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:08:59 MSTNo reproduction or networking permitted without license from IHS -,-,- 3. S 3200-2 1997 d) After ice in the test equipment is melted, water is re-passed from the pressure source at the normal temperature and with the prede
28、termined pressure of the equipment. Ice may be melted by the heating using the heater, etc. if necessary. Ice melting may be omitted when the anti-freezing operation is performed by the heating using a heater. After checking presence/absence of water flooding (presence/absence of water flooding shal
29、l be checked from either one part if there is a plurality of outlets), presence/absence of any breakage and deformation caused by freezing is checked, and the tests shall be carried out on the pressure resistant performance, water hammer limit performance, back current preventive performance, and va
30、cuum pressure destruction performance in accordance with JIS S 3200-1, JIS S 3200-3, JIS S 3200-4, and JIS S 3200-5. Only the performance tests applicable to the equipment may be carried out. e) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALic
31、ensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:08:59 MSTNo reproduction or networking permitted without license from IHS -,-,- E r r a t a for JIS (English edition) are printed in Standardization J u K Z , published monthiy by the Japanese Standards Association, and
32、also provided to subscribers of 3?S (EngIish edition) in Monthly Infonnarion. Errata will be provided upon request, please contact: Standardization Promotion Departmen& Japanese Standanis Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 100% Recycled paper PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 19:08:59 MSTNo reproduction or networking permitted without license from IHS -,-,-