1、Performance Requirements for Atmospheric Type Vacuum BreakersASSE InternationalASSE Standard #1001-2017ASSE Board Approved: November 2016ANSI Approved: April 2017ICS Codes: 23 060 9991 140 60An American National StandardAtmospheric Type Vacuum Breakers iASSE Standard #1001-2017ASSE InternationalMoke
2、na, IllinoisCopyright 2017, 2008, 2002, 1993, 1990, 1988, 1980, 1970, 1962All rights reserved.Neither this standard, nor any portion thereof, may be reproduced without the written consent of ASSE International.No product may be said to be listed by ASSE unless the manufacturer has applied to ASSE In
3、ternational, had its product tested by an official ASSE recognized independent laboratory according to the applicable standard, passed the tests, and had its documentation reviewed and approved by the consensus ASSE Seal Control Board. Having completed the aforementioned, the manufacturer may displa
4、y the ASSE Seal on the product.Instructions for receiving the authorization to display the seal are available from the ASSE International office. Organizations wishing to adopt or list any ASSE standard should print the ASSE standard number on the cover page first in equal or larger type to that of
5、the adopting or listing organization. General Informationii Atmospheric Type Vacuum Breakers ASSE Standard #1001-2017This foreword shall not be considered a part of the standard; however, it is offered to provide background information.ASSE standards are developed in the interest of consumer safety.
6、 ASSE considers product performance standards to be of great value in the development of improved plumbing systems.To accomplish this, ASSE, through its Product Standards Committee, encourages manufacturers to assist in the development of performance and testing procedures. Realizing the need for a
7、uniform standard that manufacturers and laboratory personnel could use in testing and evaluating the performance of anti-siphon vacuum breakers installed in potable water supply systems, ASSE formed a committee to develop such a standard in 1958. The committee consisted of directors and personnel of
8、 plumbing testing laboratories in Chicago, Detroit and Los Angeles, as well as a representative of the Bureau of Water Register of the New York City Department of Water Supply. Through the Product Standards Committee, with the cooperation of interested manufacturers, a standard was developed Perform
9、ance Requirements and Test Methods for Atmospheric Type, Anti-Siphon Devices.At the 1962 ASSE Annual Meeting in Little Rock, Ark., the work of the committee culminated in the acceptance of the standard, which was assigned the official number ASSE 1001. This 2017 revision of the standard has added pe
10、rformance criteria specific to vacuum breakers intended specifically for flushometer applications and for those intended to be integral to other plumbing devices. In those cases, flushometers and integral-type devices shall have standards associated with their function covering certain sections in A
11、SSE 1001, e.g. ASSE 1037/ASME A112.19.1037/CSA B125.37-2015 covers flushometers, ASME A112.18.1/CSA B125.1 covers plumbing supply fittings, and ASME A112.4.2/ CSA B45.16 covers personal hygiene devices.The working group that developed this standard revision was set up within the framework of the ASS
12、E International Product Standards Committee. Recognition is made of the time volunteered by members of this working group and of the support of manufacturers, who also participated in the meetings for this standard.This standard does not imply ASSEs endorsement of a product that conforms to these re
13、quirements.Compliance 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 Stan
14、dards Institute (ANSI). ForewordAtmospheric Type Vacuum Breakers iiiASSE Standard #1001-2017ASSE Vacuum Breaker StandardsASSE Standard NumberStandard Name Typical Use Highlights1001Atmospheric Type Vacuum Breakers Faucet with hose thread spout Water closet fill valvePrevents Backsiphonage: Outlet is
15、 open to atmosphere Not subjected to backpressure Not be subjected to more than twelve (12) hours of continuous water pressure1011Hose Connection Vacuum Breakers Hose connections, such as hose bib, wall hydrant, yard hydrant Prevents backflow by use of a SINGLE CHECK valve Prevents backsiphonage by
16、use of AIR PORTS Prevents backpressure by use of check valve and relief of backpressure through air ports. i.e. relieves pressure in the hose. Non-removable and non-testable1020Pressure Vacuum Breakers Irrigation systems Industrial processesPrevents Backsiphonage: Uses a SINGLE CHECK Not subjected t
17、o backpressure Can be subjected to continuous water pressure in excess of twelve (12) hours1052Hose Connection Backflow Preventers Hose connections, such as hose bib, wall hydrant, yard hydrantSame as a 1011 device except there are two check valves. One check valve holds the pressure in the hose. Th
18、e Intermediate chamber between check vales becomes atmospheric. Device is non-removable but is testable.1056Spill Resistant Vacuum Breakers Indoor plumbing assemblies Medical equipmentSame as 1020 but does not spill water when pressurized.Standard No. Dual Check Air Ports Backflow Backsiphonage Back
19、pressure Frost Free Removable TestableHigh Hazard1001N Y N Y N N Y N Y1011N Y Y Y Y N N N Y1020N Y N Y N N Y Y Y1052Y Y Y Y Y N N Y Y1056N Y N Y N N Y Y Yiv Atmospheric Type Vacuum Breakers ASSE Standard #1001-2017Edward J. Lyczko, ChairpersonCleveland Clinic Retiree Cleveland, OHWilliam Briggs, Jr.
20、MGJ AssociatesNew York, NYTerry BurgerNSF InternationalYpsilanti, MIWilliam ChapinProfessional Code Consulting, LLCCullman, ALMark FishZurn Industries, LLCCary, NCRon GeorgePlumb-Tech Design 2) Not be subjected to backpressure;3) Not be subjected to more than twelve (12) hours of continuous water pr
21、essure; and4) Be installed with its critical level (CL) not less than 6.0 inches (152.4 mm) above the flood level rim of the fixture or appliances served; or deck mounted/equipment mounted atmospheric vacuum breakers shall be installed in accordance with the manufacturers instructions, with its crit
22、ical level (CL) not less than 1.0 inch (25.4 mm) above the flood level rim of the fixture or appliance served.1.2 Scope1.2.1 DescriptionVacuum breakers shall be classified in two general types: Atmospheric type, as described herein Pressure type (See ASSE Standard 1020, Performance Requirements for
23、Pressure Vacuum Breaker Assembly, and ASSE Standard 1056, Spill Resistant Vacuum Breakers)The atmospheric type design shall consist of:a) A check valve memberb) An air inlet valve that is closed when the check valve member is open, and normally open when the check valve member is normally closed.The
24、 atmospheric type design can be further classified into three categories, depending on use:1) Pipe-applied2) Flushometer-applied3) Integrally-appliedDevices shall include an air inlet shield.2 Atmospheric Type Vacuum Breakers ASSE Standard #1001-20171.2.2 SizesPipe-applied vacuum breaker assembly in
25、let and outlet pipe sizes shall range from NPT to 4 NPT (3 mm to 100 mm). Flushometer-applied and integrally-applied vacuum breaker assemblies inlet and outlet sizes are determined based on the smallest fitting they are designed to be installed to.1.2.3 Working Pressure Devices shall be designed to
26、operate within a working pressure of 8.0 psi (55 kPa) to a minimum of 125.0 psi (861.9 kPa).1.2.4 Temperature Rangea) Devices limited to cold water service shall operate within a range from 33 F +2.0 F, 0 F to 110 F +0 F, 2.0 F (0.56 C +1.1 C, 0 C to 43.3 C +0 C, 1.1 C).b) Devices intended for hot o
27、r cold water service shall operate within a range from 33 F +2.0 F, 0 F to 180.0 F +0 F, 2.0 F (0.56 C +1.1 C, 0 C to 82.2 C +0 C, 1.1 C) or to the manufacturers specifications, whichever is greater.1.3 Limitation on Design1.3.1 Threaded Connections for Pipe-Applied DevicesFemale pipe threaded conne
28、ctions shall be so constructed to prevent pipe penetrations from restricting flow through the devices or interfering with working parts.1.4 Referenced StandardsReferences to industry standards shall mean to the stated editions of the standards. ASME B1.20.1-2013, Pipe Threads, General Purpose, Inch
29、ASME B1.20.31976, Dryseal Pipe Threads, Inch ASSE 1037-2015 / ASME A112.1037-2015 / CSA B125.37-15, Performance Requirements for Pressurized Flushing Devices ISA 75.02.01 (rev. 08), Control Valve Capacity Test Procedures ISO 1219-1:2012, Fluid power systems and components Graphical symbols and circu
30、it diagrams Part 1: Graphical symbols for conventional use and data-processing applicationsAtmospheric Type Vacuum Breakers 3ASSE Standard #1001-2017Section II2.0 Test Specimens2.1 Samples Submitted for TestThree (3) devices of each size and model shall be submitted by the manufacturer.2.2 Samples T
31、estedThe testing agency shall select one (1) of each size and model for full test. Tests shall be performed in the order listed on one (1) device.2.3 DrawingsAssembly drawings, installation drawings, and other data that is needed to enable a testing agency to determine compliance with this standard
32、shall accompany devices submitted for examination and performance tests.2.4 RejectionFailure of one (1) device shall result in a rejection of that size and model.4 Atmospheric Type Vacuum Breakers ASSE Standard #1001-2017Section III3.0 Performance Requirements and Compliance Testing3.1 Deterioration
33、 at Extremes of Manufacturers Temperature and Pressure Range Test3.1.1 PurposeThe purpose of this test is to ensure the device continues to function after exposure to manufacturers extremes of temperature and pressure for pipe-applied and flushometer-applied devices.3.1.2 ProcedureCold water devices
34、 shall be tested at 110 F +0 F, 2.0 F (43.3 C +0 C, 1.1 C) or the manufacturers maximum rated temperature, whichever is greater; and at 33 F +2.0 F, 0 F (0.56 C +1.1 C, 0 C). Hot water devices shall be tested at 180 F +0 F, 2.0 F (82.2 C +0 C, 1.1 C) or the manufacturers maximum rated temperature, w
35、hichever is greater; and at 33 F +2.0 F, 0 F (0.56 C +1.1 C, 0 C).Install the device per Figure 1 with a pump capable of circulating water at the flow rates listed in Table 1 through the test setup. This test shall be performed at the manufacturers maximum rated pressure for both cold and hot water
36、devices. For cold water devices, water at a temperature of 110 F +0 F, 2.0 F (43.3 C +0 C, 1.1 C) or the manufacturers maximum rated temperature, whichever is greater, shall be circulated through the device for eight (8) hours per day for a total of ten (10) days (total of eighty (80) hours). For ho
37、t water devices, water at a temperature of 180 F +0 F, 2.0 F (82.2 C +0 C, 1.1 C) or the manufacturers maximum rated temperature, whichever is greater, shall be circulated through the device for eight (8) hours per day for a total of ten (10) days (total of eighty (80) hours). After each eight (8) h
38、our test period, verify that the air inlet valve returns to its fully opened position when the system pressure is reduced to atmosphere.Within one (1) minute of the conclusion of the final eight (8) hour test period, water maintained at 33 F +2.0 F, 0 F (0.56 C +1.1 C, 0 C) shall be circulated throu
39、gh the device for at least one (1) hour.Next, water at ambient temperature shall be allowed to flow freely through the device. Close valve #2 and allow the water pressure in the test assembly to rise to 250.0 psi (1724 kPa) or two (2) times the manufacturers maximum rated working pressure, whichever
40、 is greater. This pressure shall be maintained for five (5) minutes, during which time the device shall be examined for evidence of any leaks or structural deformation. Atmospheric Type Vacuum Breakers 5ASSE Standard #1001-2017Figure 1 DeviceOutletInletReservoirDrainPumpChillerThermometerPressure Ga
41、ugeFlowmeterHeaterWater Supply2341Table 1 Required Rate of Water Flow for Test ApparatusDevice Size Required Rate of Water FlowNPT DN (mm) GPM (L/s) (3) 1.1 (0.070) (6) 1.1 (0.070) (10) 2.3 (0.14) (15) 3.6 (0.23) (20) 12.1 (0.763)1 (25) 20.6 (1.30)1 (32) 31.3 (1.96)1 (40) 44.4 (2.80)2 (50) 77.0 (4.8
42、5)2 (65) 119.0 (7.507)3 (75) 170.0 (10.72)4 (100) 299.0 (18.86)3.1.3 CriteriaAny leaks shall result in a rejection of the device.6 Atmospheric Type Vacuum Breakers ASSE Standard #1001-20173.2 Allowable Pressure Loss at Rated Flow Test3.2.1 PurposeThe purpose of this test is to determine if the requi
43、red water flow shown in Table 2 is obtained at or below the maximum allowable pressure loss of 10.0 psi (68.9 kPa).Table 2 Required Rate of Water FlowDevice Size Minimum Water FlowNPT DN (mm) GPM (L/s) (3) 1.5 (0.095) (6) 3.0 (0.18) (10) 6.0 (0.38) (15) 10.0 (0.632) (20) 17.0 (1.07)1 (25) 27.0 (1.70
44、)1 (32) 45.0 (2.83)1 (40) 65.0 (4.10)2 (50) 100.0 (6.308)2 (65) 150.0 (9.463)3 (75) 250.0 (15.77)4 (100) 400.0 (25.23)3.2.2 ProcedureThe test system shall be equipped with means of measuring the rate of flow through the device and indicating or recording pressures. Piezometers, if used, shall be ins
45、talled in accordance with ISA 75.02. The supply system shall be capable of supplying a volume of cold water adequate to meet the flow requirements of the device on test while sustaining a steady inlet pressure of not less than 25.0 psi (172 kPa). See Table 2. With the device installed per Figure 1,
46、purge the air from the system and then close valve #2. Open valve #1 fully and gradually open valve #2 until the minimum required rate of flow is reached. Record the pressure drop.3.2.3 Criteriaa) Pressure loss across the device greater than 10.0 psi (68.9 kPa) at flows stated in Table 2 shall resul
47、t in a rejection of the device.b) If the inner diameter of the smallest connection size is not listed in Table 2, perform a linear interpolation between the two nearest listed sizes to find the required minimum water flow. The criteria per 3.2.3.a shall apply.3.3 Examination of Air Inlet Shield3.3.1
48、 PurposeThe purpose of this test is to ascertain compliance of the air inlet shield for pipe-applied and flushometer-applied devices. Integrally-applied devices shall be within the overall enclosure of the assembly with sufficient ventilation to pass Section 3.4.Atmospheric Type Vacuum Breakers 7ASS
49、E Standard #1001-20173.3.2 ProcedureThe air inlet shield shall be examined when the device is installed in the intended mounting position to determine if it extends down to the bottom of the lowest air inlet opening. Clearances between the shield and the body of the device shall be measured to determine if an unobstructed 3/16 inch (4.8 mm) air passageway is maintained between the inner lower edge of the shield and the lowest surface
