1、ASSE Standard #1011-2004ASSE Board Approved: February 2004Performance Requirements for Hose Connection Vacuum BreakersASSE InternationalHose Connection Vacuum Breakers iASSE #1011 - 2004General InformationNeither this standard, nor any portion thereof, may be reproduced without the written consent o
2、f ASSE International.No product may be said to be ASSE approved unless the manufacturer has applied to the ASSE has had his product tested according to the applicable ASSE Standards, and when the product has passed the test, displays the ASSE Seal on the product.Instructions for receiving the author
3、ization to display the Seal are available from ASSEs International Office. Organizations wishing to adopt or list any ASSE Standard should print the ASSE Standard number on the cover page first and in equal or larger type to that of the adopting or listing organization.ASSE InternationalMokena, Illi
4、noisCopyright 2004, 1995, 1993, 1981, 1970All rights reserved.ii Hose Connection Vacuum BreakersASSE #1011 - 2004Hose Connection Vacuum Breakers iiiASSE #1011 - 2004ForewordThis foreword shall not be considered a part of the standard, however, it is offered to provide background information.ASSE Sta
5、ndards are developed in the interest of consumer safety.ASSE International is dedicated to the preservation of public health and safety through its guiding principle “Prevention Rather Than Cure”.The ASSEs Standards Program systematically evaluates new technologies through a formal request, and addr
6、esses the development and promulgation of performance standards designed to safeguard public health and safety.Standards for the performance of components of systems of plumbing are considered by ASSE International to be of great value in the development of improved plumbing systems for the increase
7、d protection of public health and safety.Cross-connections between the potable water supply and a possible source of contaminated liquids in a plumbing system is a recognizable potential hazard to health and safety. Much research and educational work has been done by this Society in the search for a
8、dequate preventive means. There are many dangerous situations which have had little recognition. The ASSE is vigorously attacking these problems by creating performance standards for devices tailored to negate the conditions:1) Which can cause the flow of contaminants into the potable water supply s
9、ystem.2) Responsible for the flow of contaminants into the potable water supply system.One of the many hazards which is generally ignored, is that created by connecting the common garden hose to the potable water supply by means of a hose threaded outlet. In this application, back-siphonage, due to
10、the creation of a vacuum in the supply line, or back pressure, due to the terminal end of the hose being at an elevation above the hose connection of the system simultaneously with loss of supply pressure, can cause contaminants to flow into the potable supply. Another hazard is created by attaching
11、 insecticide or agricultural spraying devices and other types of dispensers containing toxic materials to the hose. All of these are highly dangerous conditions to which persons may be exposed unless means are applied to protect the potable water in the system.This standard is tailored specifically
12、for hose threaded outlet (hose bibb or sill cock) faucets in potable water supply systems. To be effective, this device must be so installed that the air ports cannot be submerged.iv Hose Connection Vacuum BreakersASSE #1011 - 2004These performance criteria recognize and embrace the many conditions
13、involved, the known causes, and essential preventive means disclosed by extensive laboratory and field research and experience. In its text are the essential performance criteria and test procedures designed to prove the capabilities of the devices to comply with this criteria.Although many of the m
14、aterial specifications are detailed within Section IV of this Standards, 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 framew
15、ork of the Product Standards Committee of ASSE International.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.The standard does not imply ASSEs endorsement of a product which c
16、onforms 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 installation requirements and conditions for the purpose of providin
17、g 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 procedures developed by the American National Standards Institute (ANSI).
18、This edition of the standard was approved by the ASSE Board of Directors.Hose Connection Vacuum Breakers vASSE #1011 - 2004Richard J. ProspalProduct Standards Committee ChairmanProspal Consulting Services, Inc.Brunswick, OhioRand H. AckroydRand EngineeringNewburyport, MassachusettsMichael BeckwithSt
19、ate of Wisconsin Department of CommerceMadison, WisconsinGunnar O. CollinsCollins Backflow Specialists, Inc.Palatine, IllinoisJud CollinsOklahoma State Health DepartmentOklahoma City, OklahomaShannon M. Corcoran ASSE Standards CoordinatorWestlake, OhioA. Richard EmmersonGeneral InterestBuffalo Grove
20、, IllinoisSteven HazzardASSE Staff EngineerWestlake, OhioDale HollowaySGS United States Testing CompanyTulsa, Oklahoma2003-04 Product Standards CommitteeMichael KobelInternational Association of Plumbing and Mechanical OfficialsWalnut, CaliforniaValentine Lehr, P.E.Lehr AssociatesNew York, New YorkP
21、eter MarzecUnited Association of Plumbers and PipefittersWashington, D.C.Perry W. Meikle, Jr.Perry W. Meikle Consulting EngineerAntioch, CaliforniaShabbir RawalpindiwalaKohler CompanyKohler, WisconsinLynne Simnick International Code Council, Inc.Country Club Hills, IllinoisJack VilendrePrecision Plu
22、mbing Products, Inc.Portland, OregonDavid ViolaPlumbing Manufacturers InstituteSchaumberg, IllinoisJoseph C. Zaffuto, P.E.ASSE Staff EngineerWestlake, Ohiovi Hose Connection Vacuum BreakersASSE #1011 - 2004Rand H. AckroydRand EngineeringNewburyport, MassachusettsRay AngeloZurn Industries, Inc.Erie,
23、PennsylvaniaWilliam BallWoodford Manufacturing Co.Colorado Springs, ColoradoSteve BuehlerJay R. Smith Manufacturing Co.Montgomery, AlabamaJohn HigdonConbraco Industries, Inc.Matthews, North CarolinaHerb HoeptnerHoeptner Perfected ProductsGilroy, CaliforniaLawrence LuckenbillIMI Cash Valve, Inc.Cullm
24、an, Alabama1011 Working GroupChris MajockaZurn Industries, Inc.Erie, PennsylvaniaBrad NollWilkins, Division of Zurn IndustriesPaso Robles, CaliforniaTrevor PereraCSA InternationalCleveland, OhioRandy SchusterAmes Fluid Control SystemsWoodlane, CaliforniaJim WehingerWisconsin Department of CommerceFr
25、iendship, WisconsinJoseph C. Zaffuto, P.E.ASSE Staff EngineerWestlake, OhioHose Connection Vacuum Breakers viiASSE #1011 - 2004Table of ContentsSection I . 11.0 General . 11.1 Application 11.2 Scope . 11.3 Reference Standards . 2Section II 32.0 Test Specimens 32.1 Samples Submitted for Test . 32.2 D
26、rawings 32.3 Rejection 3Section III . 43.0 Performance Requirements and Compliance Testing 43.1 Hydrostatic Pressure Test . 4Figure 1 43.2 Water Flow Capacity and Pressure Loss . 4Table 1 53.3 Deterioration at Maximum Rated Temperature and Pressure 53.4 Life Cycle Test 53.5 Resistance to Bending . 5
27、Figure 2 63.6 Low Head Back Pressure . 6Figure 3 63.7 Atmospheric Vent Opening . 7Figure 4 73.8 Leakage from Vent Ports 73.9 Backsiphonage . 8Figure 5 8Figure 6 . 8Figure 7 8Figure 8 8Figure 9 8Section IV 104.0 Detailed Requirements . 104.1 Materials . 104.2 Markings . 104.3 Installation Instruction
28、s 11Section V 115.0 Definitions 11viii Hose Connection Vacuum BreakersASSE #1011 - 2004Hose Connection Vacuum Breakers 1ASSE #1011 - 2004Hose Connection Vacuum BreakersSection I1.0 General1.1 ApplicationHose Connection Vacuum Breakers shall provide protection of the potable water supply against poll
29、utants or contaminants that can enter the system through backpressure equal to from an elevated hose equal to ar leass than 10.0 feet (3.0 meters) in height 4.3 psi (29.9 kPa) and backsiphonage through the hose threaded outlets.1.2 Scope1.2.1 DescriptionThis standard applies only to those devices cl
30、assified as Hose Connection Vacuum Breakers 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 force loaded, or biased, to a closed position, and an atmospheric vent valve, force loa
31、ded, 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 where the only source of low head back pressure comes from an elevated hose equal to or
32、 less than 10.0 feet (3.0 meters) in height.1.2.2 SizesSizes shall include 1/2 NPHS, 3/4 NPHSand 1 NPHS male hose threaded outlets.1.2.3 PressureThe devices shall be designed for a minimum working pressure of 125.0 psi (861.9 kPa).1.2.4 Temperature RangeThe devices shall be designed for flow tempera
33、tures of 33.0 F to 180.0 F (0.6 C to 82.2 C).1.2.5 Mechanical Function1.2.5.1 Atmospheric Vent(a) The atmospheric vent shall be open when the supply 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 at
34、mospheric vent ports shall be of a size that can not be threaded for iron pipe size or connected with tubing either internally or externally.2 Hose Connection Vacuum BreakersASSE #1011 - 20041.2.6 Repairability(a) Devices shall be permitted to be repairable or non-repairable.(b) All replacement part
35、s of the devices of the same size and model shall be interchangeable with the original parts.1.3 Reference StandardsReference to industry standards shall be the latest edition of these standards.Hose Connection Vacuum Breakers 3ASSE #1011 - 2004Section II2.0 Test Specimens2.1 Samples Submitted for T
36、estThree (3) devices of each size and model shall be submitted by the manufacturer. Tests shall be performed in the order listed on one (1) device of each size submitted.2.2 Samples TestedThe testing agency shall select one (1) of each size and model for the full test. The manufacturer shall, at his
37、 option, supply separate devices for Section 3.9 with the fouling wire applied. 2.3 DrawingsAssembly drawings and other data which are necessary to enable a testing agency to determine compliance with this standard, together with installation drawings, shall accompany devices when submitted for exam
38、ination and performance tests under this standard.2.4 RejectionFailure of one (1) device shall be cause for rejection of that size or model until the manufacturer has corrected the fault and submitted new devices for testing.4 Hose Connection Vacuum BreakersASSE #1011 - 2004Section III3.0 Performanc
39、e 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 250.0 psi (1723.8 kPa), or two (2) times the manufacturers maximum rated working pressure, whichever is greater.3.1.2 ProcedureThe device sh
40、all 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 250.0 psi (1723.8 kPa) or the manu
41、facturers maximum rated working pressure, whichever is greater. The pressure shall be held for not less than five (5) minutes.Figure 1NOTE: Differential gauge connections shall be ring piezometers per ISA 75.02.3.1.3 CriteriaAny indication of external leakage shall result in the rejection of the dev
42、ice.3.2 Water Flow Capacity and Pressure Loss3.2.1 PurposeThe purpose of this test is to determine the pressure losses at various flow rates. 3.2.2 ProcedureThe device shall be installed as shown in Figure 1 in a test system equipped with means for accurately measuring the rate of water flow and pre
43、ssure 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 (172.4 kPa) pressure differential is reached.Hose Connection Vacuum Breakers 5ASSE #1011 - 2004Table 1Hose Thread Size (Nominal) Minimum Flow
44、Maximum Pressure LossNPHS1/23/41GPM3.06.012.0L/s0.20.40.8psi252525kPa172.4172.4172.43.2.3 CriteriaFailure to meet the flow requirements of Table 1 shall result in a rejection of the device.3.3 Deterioration at Maximum Rated Temperature and Pressure 3.3.1 PurposeThe purpose of this test is to determi
45、ne if the device continues to function without leakage when exposed to the maximum rated temperature and pressure.3.3.2 ProcedureWater at a temperature of 180.0 F 5.0 F (82.2 C 3.0 C) or the manufacturers maximum rated temperature, whichever is greater, and at a pressure of 125.0 psi (861.9 kPa) or
46、the manufacturers maximum rated pressure, whichever is greater, shall be circulated at a flow per Table 1 through the device for eight (8) hours per day for a total of ten (10) days.3.3.3 CriteriaAny indication of external leakage shall result in a rejection of the device.3.4 Life Cycle Test3.4.1 Pu
47、rposeThe purpose of this test is to determine if there is any deterioration of performance upon the completion of five thousand (5000) cycles.3.4.2 ProcedureInstall the device with ambient water at the manufacturers maximum rated working pressure being applied at the inlet. The device shall be cycle
48、d using a solenoid valve upstream of the device with the device outlet open to atmosphere. The device shall be cycled for five-thousand (5000) cycles. Cycling of the solenoid valve shall not exceed thirty (30) times per minute.3.4.3 CriteriaFailure of the device to comply with the remaining sections
49、 of this standard shall result in a rejection of the device.3.5 Resistance to Bending3.5.1 PurposeThe purpose of this test is to determine if the device continues to function without leakage when subjected to a pull of 100.0 pound (45.4 kg) on a hose applied perpendicular to the device.6 Hose Connection Vacuum BreakersASSE #1011 - 20043.5.2 ProcedureWith the device installed as shown in Figure 2, apply a load equivalent to a pull of 100.0 pounds (45.4 kg) in a direction at right angles to the axis through the hose connections at the outlet of the d
