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1、STD-JIS S 3200-3-ENGL 3977 H 4933b08 0571352 147 . I I JAPANESE I N DUSTR IAL STANDARD Translated and Published by Japanese Standards Association JIS S 3200-3 1997 Equipment for water supply service - Test methods of water hammer ICs 91.140.60 Descriptors : waterworks, fluid equipment, fluid equipme
2、nt components, hydraulic Reference number : JIS S 3200-3 : 1997 (E) pressure, impact testing 4 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 20:13:32 MSTNo reproduction or networking pe
3、rmitted without license from IHS -,-,- S 3200-3 : 1997 Date of Establishment: 1997-06-20 Date of Public Notice in Official Gazette: 1997-06-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Consumer Life JIS S 3200-3: 1997, First English edition published in 2001-05 T
4、ranslated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. 4 i L O JSA2000 All rights reserved. Unless otherwise specified, no part of this publicat
5、ion 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. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111
6、111001, User=Wing, Bernie Not for Resale, 03/10/2007 20:13:32 MSTNo reproduction or networking permitted without license from IHS -,-,- STDaJIS S 3200-3-ENGL S 3200-3 : 1997 Foreword 1997 This translation has been made based on the original Japanese Industrial Standard established by the Minister of
7、 International Trade and Industry through deliberation at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. This Standard specifies the testing methods of water hammer of equipment for water supply service designed to prevent from occurrence of the wa
8、ter hammer. The Japanese Industrial Standards in connection with this Standard are given below a). Other standards given below b), specimng the testing methods relating to the structure and material of water supply systems based on the Water Works Law, have also been established on the same date as
9、this Standard. a) The Japanese Industrial Standards in connection with this Standard 1) JIS B 2061 Faucets, ball taps and flush valves 2) JIS C 9219 Electric storage tank water heaters 3) JIS S 2109 4) JIS S 3021 Oil burning water boilers 5) JIS S 3024 Oil burning water heaters for domestic use 6) J
10、IS S 3027 Oil burning bath boilers with water heaters for domestic use The standards other than this Standard for the testing methods relating to the Water Works Law 1) JIS S 3200-1 Equipment for water supply service - Test methods of hydrostatic pressure 2) JIS S 3200-2 Equipment for water supply s
11、ervice - Test method of low temperature resistant 3) JIS S 3200-4 Equipment for water supply service - Test method of prevention from back current 4) JIS S 3200-5 Equipment for water supply service - Test methods of destruction by vacuum pressure 5) JIS S 3200-6 Equipment for water supply service -
12、Test methods of durability 6) JIS S 3200-7 Equipment for water supply service - Test methods of effect to water quality Gas burning water heaters for domestic use b) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie No
13、t for Resale, 03/10/2007 20:13:32 MSTNo reproduction or networking permitted without license from IHS -,-,- Equipment for water supply service - Test method of water hammer Introduction This Japanese Industrial Standard has been established so that it specifies the standardized testing methods of wa
14、ter hammer of equipment for water supply service in line with the ordinance revised in 1997, standards for structure and material of water supply systems under the Water Works Law, for the purpose of more comprehension and effective application of the testing methods and serviceabil- ity to users. 1
15、 Scope This Standard specifying the testing methods of water hammer applies to such equipment for water supply service designed to prevent from occurrence of the water hammer as faucets other than water stop valve, electric storage tank wa- ter heaters, gas burning water heaters, oil burning water h
16、eaters, etc. 2 Device The deviceishall be as given in Fig. 1 and the installation of a pipe, a combination faucet and a pressure measuring instrument and piping material shall be as follows. The diameter of pipe shall not be less than the nominal diameter of the equip- ment to be tested. Furthermore
17、, a straight pipe shall be used for horizontal piping, its diameter shall be equal to the nominal diameter of the equipment to be tested and the distance from the starting point of the horizontal pipe to the pressure measuring instrument shall be 10 m. The combination faucet shall be piped at either
18、 inlet side of usual water or hot water. The equipment to be tested other than the combination faucet having the same type of multi-mechanism to prevent from occurrence of the water hammer, shall be piped at any of them. The pressure measuring instrument shall be of superior response capable of ac-
19、tive measuring and recording of the maximum value of water hammer. The pressure measuring instrument shall be fixed at horizontal distance of 1 m from the inlet of equipment to be tested. However, the velocity meter may be fixed to any position on the horizontal pipe. Piping material shall not readi
20、ly be corrosive pipe inside and expansive such as unplasticized polyvinyl chloride lining steel pipes for water works, polyethylene powder lining steel pipes for water supply or at least equivalent. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees
21、/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 20:13:32 MSTNo reproduction or networking permitted without license from IHS -,-,- STDmJIS S 3200-3-ENGL 1997 2 S 3200-3 : 1997 - - - Supplementary means (cock for instrument) Equipment to be tested valve Horizontal Pipe 10 - - f - Fig. 1 Exa
22、mple of device for water hammer testing 3 Procedure The testing procedure shall be as follows. of water-stop mechanisms where those multiple mechanisms are all identical. a) Equipment with water-stop mechanism to be closed by hand The equipment to be tested such as the combination faucet may be test
23、ed on any The equipment to be tested shall be fixed in the usual operating state to the testing device specified in above 2. The water-stop mechanism shall be opened and water of ordinary tempera- ture shall be flowed through the equipment to be tested sufficiently to remove the inside air. The equi
24、pment to be tested shall be kept fully opened (l) and water at ordi- nary temperature shall be run through it until either condition (2) of water velocity of 2 m/s or hydrodynamic pressure of 0.15 MPa becomes stable. Notes (9 For equipment with the water-stop mechanism closed and opened by turning a
25、 wheel, it shall be positioned to the angle of 120“ to open. For equipment with the water-stop mechanism fully opened by less turning angle, it shall be positioned to the maximum an- gle to open. Fulfillment of either condition of the water velocity or the hydro- dynamic pressure is required for tes
26、ting. When the test is car- ried out checking both conditions, provided that the hydrodynamic pressure shall reach 0.15 MPa, the water velocity may not reach 2 d s . The water-stop mechanism of the equipment to be tested shall be closed in 0.5 s as the standard duration, from the stable condition of
27、 running water specified in above 3 ) . The increase of pressure (3) due to water hammer occurred shall be mea- sured. (2) Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 20:13:32 MSTNo rep
28、roduction or networking permitted without license from IHS -,-,- STD-JIS S 3200-3-ENGL 3937 4933608 0573357 723 3. S 3200-3 : 1997 Note (3) Hydrodynamic pressure described in above 3) is not included to the measurement. b) Equipment with water-stop mechanism to be closed automatically The equipment
29、to be tested shall be fixed to the device described in above 2 in the usual operating state. The water-stop mechanism of the equipment to be tested shall be opened, and filled up with water at ordinary temperature to remove the inside air. The equipment to be tested shall be fully opened and water a
30、t ordinary temperature shall be run through it until either condition (2) of water veloc- ity of 2 m/s or hydrodynamic pressure of 0.15 MPa becomes stable. The water-stop mechanism of the equipment to be tested shall be closed automatically while keeping the state of running water specified in above
31、 3 ) . The increase of pressure (3) due to water hammer occurred shall be mea- sured. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 20:13:32 MSTNo reproduction or networking permitted wit
32、hout license from IHS -,-,- STD-JIS S 3200-3-ENGL 1997 - 4933608 0571158 bb5 m Errata for JIS (English edition) are printed in Sfandurdization Jouml, published monthly by the Japanese Standards Association, and also provided to subscribers of JIS (English edition) in MonrhZy Infomation. Emta will be
33、 provided upon request, piease contact: Standarization Promotion Department, Japanese Standards Association 4-1-24, Aicasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 20:13:32 MSTNo reproduction or networking permitted without license from IHS -,-,-