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1、ASSE STANDARD 1003-2001 ERRATA SHEET ISSUED: JANUARY 3,2003 TABLE 1 TABLE 2 Copyright American Society of Sanitary Engineering Provided by IHS under license with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without licens
2、e from IHS -,-,- ASSE Standard #lo03 Revised: July, 2001 Arnercun Society of Sunitu y Engneerng Performance Requirements for Water Pressure Reducing Valves Copyright American Society of Sanitary Engineering Provided by IHS under license with ASSE Licensee=University of Texas/5626000001 Not for Resal
3、e, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- General Information Neither this Standard, nor any portion thereof, may be reproduced without the written consent of the American Society of Sanitary Engineering. Although this Standard may be used as a
4、benchmark for in-house evaluation, no product may be said to be ASSE approved unless the manufacturer has applied to the ASSE, has had his product tested by an official ASSE recognized independent laboratory, according to the applicable ASSE Standard, and when the product has passed the test, displa
5、ys the ASSE Seal on the product. Instructionsfor receiving the authorization to display the Seal are available from the ASSE Central Office. It is recommended that all devices designed for plumbing systems, especially those which pertain to public health and safety, should be installed consistent wi
6、th local codes by qualified and trained professionals. American Society of Sanitary Engineering Westlake, Ohio Copyright O 2001, 1993, 1982 All rights reserved. - Water Pressure Reducing Valves for Domestic Water Distribution Systems ASSE WO03 Revised: 2001 i Copyright American Society of Sanitary E
7、ngineering Provided by IHS under license with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- II Wafer Pressure Reducing Valves for Domestic Wafer Distribution Systems ASSE #I003 Revised: 2001
8、Copyright American Society of Sanitary Engineering Provided by IHS under license with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- F orewo rd This foreword shall not be considered a part of
9、the standard, however, it is offered to provide background information. ASSE Standards are developed in the interest of consumer safety. The American Society of Sanitary Engineering for Plumbing and Sanitary Research is dedicated to the preservation of public health and safety through its guiding pr
10、inciple “Prevention Rather Than Cure”. The ASSES Standards Program systematically evaluates new technologies through a formal request, and addresses the development and promulgation of performance standards de- signed to safeguard public health and safety. Standards for the performance of components
11、 of systems of plumbing are considered by the American Society of Sanitary Engineering for Plumbing and Sanitary Researchto be of great value in the development of improved plumbing systems for the increased protection of public health and safety. To accomplish this, the ASSE, through its Product St
12、andards Committee, encourages manufacturers to develop performance standards and testing procedures for their products. These standards have the consensus of the manufacturers and others who have pertinent interests in plumbing systems, and are acceptable to this Society. This standard for water pre
13、ssure reducing valves is one for which the need was expressed. It was developed by a sub-committee of the ASSE Standards Committee using as a base the standard of the City of Los Angeles, which was originally created by a group which included the major manufacturers of this class of product. To this
14、 basic standard have been added testing procedures and test equipment diagrams to enable uniform testing by testing agencies with adequate facilities and qualified personnel. At the October 1964 Annual Meeting of the Society, this standard was accepted as an ASSE Standard and assigned the identifyin
15、g number 1003. Performance standards for systems and devices must be reviewed periodically and upgraded as research, field conditions and experience suggest. The policy of the American Society of Sanitary Engineering is to review each standard on a five year cycle for revisions or reaffirmation. Bet
16、ween such reviews, the Product Standards Committee works with interested o Water Pressure Reducing Valves for Domestic Water Distribution Systems ASSE #I003 Revised: 2001 iii Copyright American Society of Sanitary Engineering Provided by IHS under license with ASSE Licensee=University of Texas/56260
17、00001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- groups in obtaining information for study and evaluation for acceptance in upgrading a standard. Although many of the material specifications are detailed within Section IV of this Sta
18、ndards, it is the responsibility of the manufacturer to comply with the requirements of the Safe Drinking Water Act, United States Public Law 93-523. The working group which developed this standard revision, was set up within the framework of the Product Standards Committee of the American Society o
19、f Sanitary Engineering. Recognition is made of the time volunteered by members of this working group and of the support of the manufacturers who also participated in the meetings for this standard. This standard does not imply ASSES endorsement of a product which conforms to these require men ts. Co
20、mpliance with this standard does not imply acceptance by any code body. It is recommended that these devices be installed consistent with local codes by qualified and trained professionals. This standard was promulgated in accordance with procedures developed by the American National Standards Insti
21、tute (ANSI). This edition of the standard was approved by the ASSE Board of Directors on month day, year, as an ASSE standard. iV Water Pressure Reducing Valves for Domestic Water Distribution Systems ASSE #I003 Revised: 2001 Copyright American Society of Sanitary Engineering Provided by IHS under l
22、icense with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- 2000-01 Product Standards Committee O Richard J. Prospal Michael Kobel Standards Committee Chairman Reliance Mechanical and Mechanica
23、l Officials Cleveland, Ohio Walnut, California International Association of Plumbing Rand H. Ackroyd Rand Engineering Newburyport, Massachusetts Lynne Arie Building Officials and Code Administrators, Inc. Country Club Hills, Illinois Michael Bec kw it h State of Wisconsin DILHR Madison, Wisconsin Va
24、lentine Lehr, P.E. Lehr Associates New York, New York Herbert Panzer, P.E. Herbert Panzer, PE, Consulting Engineer Delra y Beach, F lorida Gerald Phariss United Association of Plumbers and Pipefitters Washington, D. C. Charles Caruana / Edwin Ho S ha b bi r Rawal pi nd iwala Canadian Standards Assoc
25、iation Etobicoke, Ontario, Canada Shannon M. Corcoran ASSE Standards Coordinator Westlake, Ohio A. Richard Ernrnerson Chicago Faucet Company Des Plaines, Illinois Patrick J. Higgins P. J. Higgins t throttling valve rate of flow indicator - water supply T thermometer -o - HEATER reservoir 55-4 -/circ
26、ulating Pump by-pass - system shall be permitted to be used instead ofthe vented reservoir at the option of the At the end of eight (80) hours, run water maintained at 4.4 “C ( 40 O F ) through the device for one hour at the minimum capacity listed in Table I. Water Pressure Reducing Valves for Dome
27、stic Water Distribution Systems ASSE #I003 Revised: 2001 5 Copyright American Society of Sanitary Engineering Provided by IHS under license with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,-
28、Table I mm 15 I Size of Device I Minimum Capacity I inches US GPM 1 I2 0.32 5 20 25 32 40 50 65 75 I I 314 0.44 7 1 0.50 8 1 114 0.57 9 1 II2 0.63 10 2 0.95 15 2 112 1.58 25 2 1.90 30 I I I I 3.3.3 Criteria Any indication of change in physical characteristics of the materials which would prevent ful
29、l compliance with all the remaining requirements of this Standard shall result in a rejection of the device. 3.4.1 Purpose The purpose of this test is to determine reduced flowing pressure changes thatoccurwith changes in the supply pressure. 3.4.2 Procedure With the device installed as in Figure 3,
30、 maintain 690 kPa (100 psi) supply pressure. With valves #4 and #6 closed and orifice valve #5 open bleeding through a 1.6 mm (1/16) orifice, adjust the device to deliver a reduced flowing pressure of 345 kPa (50 psi) indicated by gauge number 4. Increase the supply pressure to 1034 kPa (1 50 psi) a
31、nd record the reduced pressure. Then lower the supply pressure to 345 kPa (50 psi) and record the reduced flowing pressure. 6 Water Pressure Reducing Valves for Domestic Wafer Distribution Systems ASSE #lo03 Revised: 2007 Copyright American Society of Sanitary Engineering Provided by IHS under licen
32、se with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- Figure 3 25 32 40 50 65 75 Throttling Valve #4 1 1.58 25.0 1 114 2.65 42.0 1 112 3.46 54.8 2 4.90 77.5 2 112 6.30 100.0 2 15.75 250.0 Sup
33、ply source shall be capable of maintaining 1723.8 kPa ( 250 psi) with a minimum flow of 6.3 Us (1 O0 gpm). Pipes shall be same size as pressure reducing valve pipe connection sizes. Auxiliary Water Supply - Minimum 1723.8 kPa (250 psi) 3.4.3 Criteria Deviation of reduced flowing pressure more than 7
34、 kPa (1 psi) for every 69 kPa (1 O psi) change in the supply pressure shall result in a rejection of the device. 3.5.1 Purpose The purpose of this test is to determine if the device is capable of being adjusted to a reduced flowing pressure of 172 kPa (25 psi) at the rates shown in Table 2 when the
35、supply pressure is maintained at 1724 kPa (250 psi) or the manufacturers rated pressure, whichever is higher. Table 2 I Size of Device I Minimum Flow I inches 314 1 .O5 16.7 Water Pressure Reducing Valves for Domestic Water Distribution Systems ASSE #lo03 Revised: 2001 7 Copyright American Society o
36、f Sanitary Engineering Provided by IHS under license with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- 3.5.2 Procedure With the device installed as in Figure 3, control the supply pressure t
37、o 1724 kPa (250 psi), or the manufacturers rated pressure, whichever is higher, and with the downstream valves #5 and #6 closed, open the throttling valve #4 slowly until the rate of flow conforms to Table 2 for the size of device on test, continuously adjusting the device to maintain 172 kPa (25 ps
38、i) reduced flowing pressure and readjusting the throttling valve as necessary to maintain the required flow rate. If the supply pressure cannot be maintained at 1724 kPa (250 psi), or the manufacturers rated pressure, whichever is higher, during the specified rate of flow, the reduced flowing pressu
39、re shall be permitted to be adjusted to 7 kPa (1 psi) less than 172 kPa (25 psi) for every 69 kPa (1 O psi) supply pressure falls below 1724 kPa (250 psi), or the manufacturers rated pressure, whichever is higher. 3.5.3 Criteria Failure to attain a reduced flowing pressure of 172 kPa (25 psi) shall
40、result in a rejection of the device. 3.6.1 Purpose The purpose of this test is to determine if the device allows a minimum adjustment range of 172 kPa (25 psi). 3.6.2 Procedure With the device installed as in Figure 3, maintain a supply pressure of 690 kPa (100 psi); close all downstream valvesexcep
41、t valve number 5 to the 1.6 mm (1/16“) orifice. Adjust the device to its maximum and minimum reduced pressure. 3.6.3 Criteria Lack of a 172 kPa (25 psi) adjustment range shall result in a rejection of the device. 3.7.1 Purpose The purpose of this test is to determine if the device has a minimum capa
42、city as shown in Table 2 when maintaining a reduced pressure (fall-off) of 117 kPa (1 7 psi) less than its no-flow set (lock- up) pressure and with the supply pressure maintained at 345 kPa (50 psi) higher than the reduced flowing pressure. 3.7.2 Procedure Install the device in the system as shown i
43、n Figure 3. Close all downstream valves except valve number 5 in the line to the 1.6 mm (1/16“) orifice. Open valve number 3 and regulate the supply pressure to a suitable pressure indicated by gauge number 3which shall be maintained throughout the test. Adjust the device to rnaintaina set pressure
44、of 228 kPa (33 psi) less than supply pressure. Close valve number 5 and slowly open the throttling valve number 4 until the reduced pressure gauge number4 is 117 kPa (1 7 psi) less than the set pressure and record the rate of flow through the device. 3.7.3 Criteria Failure to flow the required minim
45、umcapacity as indicated in Table 2 at 117 kPa (17 psi) below the no-flow set pressure shall result in a rejection of the device. 8 Water Pressure Reducing Valves for Domestic Water Distribution Systems ASSE #lo03 Revised: 2007 Copyright American Society of Sanitary Engineering Provided by IHS under
46、license with ASSE Licensee=University of Texas/5626000001 Not for Resale, 12/24/2006 00:23:07 MSTNo reproduction or networking permitted without license from IHS -,-,- 3.8.1 Purpose An integral or built-in by-pass relief valve shall be capable of opening to permit a reverse flow of water through the
47、 device to prevent a build-up of system pressure by thermal expansion of the water with an increase of reduced pressure not to exceed 35 kPa ( I O psi) above the prevailing initial pressure at the inlet of the device. 3.8.2 Procedure With the device installed as in Figure 3 and with valves number 4,
48、5 and 6 closed, open the supply valve number 3 and regulate the supply pressure at 690 kPa (100 psi). Open throttling valve number 4, purge the system of air and then close valve number 4. Record the exact pressure registered on gauge number 3. Open valve number 7 and adjust the pressure shown on gauge number 5 to read 35 kPa (5 psi) less than the pressure shown on gauge number 3. Open valve #6. Slowly raise the pressure in the down stream line until the pressure registered by gauge num