1、Performance Requirements for Hose Connection Vacuum BreakersASSE InternationalASSE Standard #1011-2017ASSE Board Approved: November 2017ANSI Approved: November 2017 ICS Code: 23 060 99An American National StandardHose Connection Vacuum Breakers iASSE Standard #1011-2017ASSE InternationalMokena, Illi
2、noisCopyright 2017, 2004, 1995, 1993, 1981, 1970All 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 International, has had its p
3、roduct tested by an official ASSE recognized independent laboratory according to the applicable standards, and had its documentation reviewed and approved by the consensus ASSE Seal Control Board. Having completed the aforementioned, the manufacturer may display the ASSE seal on the product. Instruc
4、tions 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 the adopting or listing organization.G
5、eneral Informationii Hose Connection Vacuum Breakers ASSE Standard #1011-2017This foreword shall not be considered a part of the standard; however, it is offered to provide background information.ASSE International is dedicated to the preservation of public health and safety through its guiding prin
6、ciple, “Prevention Rather Than Cure.” ASSE standards are developed in the interest of consumer safety.ASSEs Standards Program systematically evaluates new technologies through formal requests and addresses the development and promulgation of performance standards designed to safeguard public health
7、and safety.Standards for the performance of plumbing system components are considered by ASSE International to be of great value in the development of improved plumbing systems for the increased protection of public health and safety.Cross-connections between the potable water supply and a possible
8、source of contaminated liquids in a plumbing system are recognizable potential hazards to health and safety. Much research and educational work has been done by this organization in the search for adequate preventive means.One of the many hazards, which is generally ignored, is that created by conne
9、cting the common garden hose to the potable water supply by means of a hose threaded outlet. In this application, backsiphonage, due to the creation of a vacuum in the supply line, or backpressure, due to the terminal end of a hose being at an elevation above the hose connection of a system simultan
10、eously with a loss of supply pressure, can cause contaminants to flow into the potable supply. Another hazard is created by attaching insecticide or agricultural spraying devices and other types of dispensers containing toxic materials to a hose. All of these are highly dangerous conditions to which
11、 persons may be exposed unless means are applied to protect the potable water in the system.This standard is tailored specifically for hose threaded outlet (hose bibb or sill cock) faucets in potable water supply systems. Although many of the material specifications are detailed within Section 4.1 o
12、f this standard, it is the responsibility of the manufacturer and the installer to comply with the relevant jurisdictional requirements.Recognition is made of the time volunteered by members of this working group and of the support of manufacturers, who also participated in meetings for this standar
13、d.The standard does not imply ASSEs endorsement of a product which conforms to these requirements.Compliance with this standard does not imply acceptance by any code body.Plumbing codes mandate how and where these devices are installed. However, this standard was promulgated using a specific set of
14、installation requirements and conditions for the purpose of providing reasonable performance requirements and compliance testing.It is recommended that these devices be installed consistent with local codes by qualified and trained professionals.This standard was promulgated in accordance with proce
15、dures developed by the American National Standards Institute (ANSI). ForewordHose Connection Vacuum Breakers iiiASSE Standard #1011-2017ASSE Vacuum Breaker StandardsASSE Standard NumberStandard Name Typical Use Highlights1001Atmospheric Type Vacuum Breakers Faucet with hose thread spout Water closet
16、 fill valvePrevents Backsiphonage: Outlet is 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 S
17、INGLE CHECK valve Prevents backsiphonage by 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 Backsi
18、phonage: Uses a SINGLE CHECK Not subjected to 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 ch
19、eck valve holds the pressure in the hose. The 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
20、 Check Air Ports Backflow Backsiphonage Backpressure 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 Hose Connection Vacuum Breakers ASSE Standard #1011-2017Edward J. Lyczko, ChairpersonCleveland Clin
21、ic Retiree Cleveland, OHWilliam Briggs, Jr.MGJ AssociatesNew York, NYTerry BurgerNSF InternationalYpsilanti, MIWilliam ChapinProfessional Code Consulting, LLCCullman, ALMark E. FishZurn Industries, LLCCary, NCRon GeorgePlumb-Tech Design & Consulting Services, LLCNewport, MIDaniel GleibermanSloan Los
22、 Angeles, CAJohn F. Higdon, P.E.Apollo Valves / Conbraco Industries, Inc.Matthews, NCGary HowardIllinois Plumbing Inspector RetireeLaGrange, IL2017 Product Standards CommitteeConrad L. Jahrling (non-voting)ASSE InternationalChicago, ILChuck LottPrecision Plumbing ProductsPortland, ORPeter MarzecUnit
23、ed Association of Plumbers and PipefittersPearl River, NYThomas PitcherelloState of New JerseyBordentown, NJDaniel RademacherPlumbing Code and Design ConsultingButte, MTShabbir RawalpindiwalaKohler CompanyKohler, WIBilly SmithAmerican Society of Plumbing Engineers (ASPE)Montgomery, ALTsan-Liang Su,
24、PhDStevens Institute of TechnologyHoboken, NJHose Connection Vacuum Breakers vASSE Standard #1011-2017William Chapin, ChairpersonProfessional Code Consulting, LLCCullman, ALMike BoehkLegend ValveShelby Township, MIMatt BrizzeeConbraco Industries, Inc.Matthews, NCRobert BurnhamZurn IndustriesErie, PA
25、Fernando FernandezTOTOOntario, CADaniel GleibermanSloanLos Angeles, CALarry HimmelblauChicago Faucet Co.Lisle, ILVacuum Breaker Working GroupJoel HippHobart - ITWTroy, OHHerb HoeptnerHoeptner Preferred ProductsGilroy, CAConrad L. Jahrling (non-voting)ASSE InternationalChicago, ILJerry McDanalJ.R. Sm
26、ithMontgomery, ALBrad NollZurn IndustriesPaso Robles, CAShabbir RawalpindiwalaKohler CompanyKohler, WIvi Hose Connection Vacuum Breakers ASSE Standard #1011-2017Table of ContentsSection I 11.0 General . 11.1 Application 11.2 Scope . 11.3 Reference Standards . 2Section II 32.0 Test Specimens 32.1 Sam
27、ples Submitted for Test . 32.2 Samples Tested 32.3 Drawings 32.4 Rejection 3Section III . 43.0 Performance Requirements and Compliance Testing 43.1 Hydrostatic Pressure Tests . 4Figure 1 43.2 Water Flow Capacity and Pressure Loss . 4Figure 2 5Table 1 53.3 Deterioration at Maximum Rated Temperature a
28、nd Pressure 53.4 Life Cycle Test 53.5 Pull Test 6Figure 3 63.6 Low Head Back Pressure . 6Figure 4 73.7 Atmospheric Vent Opening . 7Figure 5 83.8 Leakage from Vent Ports 83.9 Backsiphonage . 8Figure 6 93.10 Non-removable Feature . 9Section IV 104.0 Detailed Requirements . 104.1 Materials . 104.2 Mark
29、ings . 104.3 Installation Instructions . 10Section V . 115.0 Definitions . 11Appendix A 12Fouling Methods for Selected Check Valve Designs . 12Hose Connection Vacuum Breakers 1ASSE Standard #1011-2017Performance Requirements for Hose Connection Vacuum BreakersSection I1.0 General 1.1 ApplicationHose
30、 Connection Vacuum Breakers, herein referred to as “device,” shall provide protection of the potable water supply against pollutants or contaminants that can enter the system through backpressure equal to the force created by an elevated hose from 6.0 inches (15.2 cm) to 10.0 feet (3.0 meters) in he
31、ight and backsiphonage through the hose threaded outlets.1.2 Scope1.2.1 DescriptionThis standard applies only to those devices which are designed to be installed on the discharge side of the hose bibb, hydrant, or faucet which is fitted with hose threads. The design embraces a check valve member for
32、ce loaded, or biased, to a closed position, and an atmospheric vent valve, force loaded, or biased, to an open position when the device is not under pressure. This device shall not be subjected to more than twelve (12) hours of continuous water pressure. This device shall only be used on systems whe
33、re the only source of low head back pressure comes from an elevated hose equal to or less than 10.0 feet (3.0 meters) in height.1.2.2 SizesSizes shall include NH, 3/4 NH and 1 NH male hose threaded outlets.1.2.3 PressureThe devices shall be designed for a working pressure of at least 125 psi (862 kP
34、a).1.2.4 Temperature RangeThe devices shall be designed for flow temperatures of 33 F to 180 F (0.56 C to 82 C).1.2.5 Mechanical FunctionThe devices shall be designed for flow temperatures of 33 F to 180 F (0.56 C to 82 C).1.2.5.1 Atmospheric Venta) The atmospheric vent shall be open when the supply
35、 pressure is at atmospheric as defined in Section 3.7.b) The atmospheric vent shall open when subjected to conditions defined in Section 3.9.c) The atmospheric vent ports shall be of a size that cannot be threaded for iron pipe size or connected with tubing either internally or externally.1.2.6 Repa
36、irabilitya) Devices shall be permitted to be repairable or non-repairable.b) All replacement parts of the devices of the same size and model shall be interchangeable with the original parts.2 Hose Connection Vacuum Breakers ASSE Standard #1011-20171.3 Referenced Standards ASME B1.20.7-1991 (R2013),
37、Hose Coupling Screw Threads (Inch) ISA-75.02.01-2008 (IEC 60534-2-3 Mod), Control Valve Capacity Test ProceduresHose Connection Vacuum Breakers 3ASSE Standard #1011-2017Section II2.0 Test Specimens2.1 Samples Submitted for TestThree (3) devices of each size and model shall be submitted by the manufa
38、cturer.2.2 Samples TestedThe testing agency shall select one of each type, or model, and outlet size for full test. The tests shall be run in the order described in the standard on one (1) device. 2.3 DrawingsAssembly drawings, installation drawings, and other data that is necessary to enable a test
39、ing agency to determine compliance with this standard shall accompany devices when submitted for examination and performance tests under this standard.2.4 RejectionFailure of one (1) device shall be cause for rejection of that size or model.4 Hose Connection Vacuum Breakers ASSE Standard #1011-2017S
40、ection III3.0 Performance Requirements and Compliance Testing3.1 Hydrostatic Pressure Tests3.1.1 PurposeThe purpose of this test is to determine if the device withstands a pressure of 250 psi (1720 kPa), or two (2) times the manufacturers maximum rated working pressure, whichever is greater.3.1.2 Pr
41、ocedureThe device shall be installed in the open position on the test system, as shown in Figure 1, with the inlet connected to an ambient water supply and the throttling valve open. The device shall be purged of air and the throttling valve closed. The device shall be pressurized to 250 psi (1720 k
42、Pa) or twice the manufacturers maximum rated working pressure, whichever is greater. The pressure shall be held for not less than five (5) minutes.Figure 1DrainHigh Pressure GaugeSupplyBleeder line and connection for hydrostatic testDevice3.1.3 CriteriaAny indication of external leakage shall result
43、 in the rejection of the device.3.2 Water Flow Capacity and Pressure Loss3.2.1 PurposeThe purpose of this test is to determine the pressure losses across the device at various flow rates. 3.2.2 ProcedureThe device shall be installed as shown in Figure 2 in a test system equipped with means for accur
44、ately measuring the rate of water flow and pressure loss across the device.After purging the system of air, close the throttling valve. The throttling valve shall then be opened slowly until the 25.0 psi (172 kPa) pressure differential is reached.Hose Connection Vacuum Breakers 5ASSE Standard #1011-
45、2017Figure 2DrainFlowmeterDeviceSupplyShut-offDifferential Pressure GaugePressure Reducing ValveTable 1 Hose Thread Size (Nominal) Minimum Flow Maximum Pressure LossNH GPM L/s psi kPa (mm)1/2 3.0 (0.19) 25.0 (172) (0.81 - 0.86)3/4 6.0 (0. 38) 25.0 (172) (0.81 - 0.86)1 12.0 (0.76) 25.0 (172) (0.81 -
46、0.86)3.1.3 CriteriaFailure to meet the flow requirements of Table 1, or minimum flow capacity per manufacturer if greater, shall result in a rejection of the device.3.3 Deterioration at Maximum Rated Temperature and Pressure3.3.1 PurposeThe purpose of this test is to determine if the device continue
47、s to function without leakage when exposed to the maximum rated temperature and pressure.3.3.2 ProcedureWater at a temperature of 180 F 5 F (82 C 3C) or the manufacturers maximum rated temperature, whichever is greater, and at a pressure of 125 psi (860 kPa) or the manufacturers maximum rated workin
48、g pressure, whichever is greater, shall be circulated at a flow for the size of the device on test per Table 1 through the device for eight (8) hours per day for a total of ten (10) days, or for eighty (80) continuous hours at the manufacturers request.3.3.3 CriteriaAny indication of external leakag
49、e shall result in a rejection of the device.3.4 Life Cycle Test3.4.1 PurposeThe purpose of this test is to determine if there is any deterioration of performance upon the completion of five thousand (5000) cycles.6 Hose Connection Vacuum Breakers ASSE Standard #1011-20173.4.2 ProcedureInstall the device with ambient temperature water at the minimum working pressure per Section 1.2.3 or the manufacturers maximum rated working pressure, whichever is greater, being applied at the inlet. The device shall be cycled using a so
