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ASSE 1057 2012

ASSE 1057 2012

$24.38

ASSE Standard #1057-2012 Performance Requirements for Freeze Resistant Sanitary Yard Hydrants with Backflow Protection

Published By Publication Date Number of Pages
ASSE 2012 28
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The purpose freeze resistant sanitary yard hydrants is supply potable water without danger of damage to the device due to freezing, to provide protection of the potable water supply from contamination due to ground water and to prevent backflow in accordance with the backflow prevention device selected. These devices shall only be used on systems where the low-head backpressure does not exceed that generated by an elevated hose equal to or less than 10.0 feet (3.0 m) in height. This device shall not be subjected to continuous pressure.

PDF Catalog

PDF Pages PDF Title
11 Section I
1.0 General
1.1 Application
1.2 Scope
12 1.3 Reference Standards
13 Section II
2.0 Test Specimens
2.1 Samples Submitted for Test
2.2 Samples Tested
2.3 Drawings
2.4 Rejection
14 Section III
3.0 Performance Requirements and Compliance Testing
3.1 Hydrostatic Pressure Tests
Figure 1
3.2 Deterioration at Extremes of Manufacturer’s Temperature and Pressure Range
15 Figure 2
3.3 Life Cycle Evaluation
16 3.4 Resistance to Bending
Figure 3
3.5 Freeze Resistant Capabilities
17 Figure 4
3.6 Atmospheric Vent Leakage
18 Figure 5
3.7 Backflow Through Inlet Check Valve (Types 1 and 2
Figure 6
19 3.8 Backflow Through Outlet Check Valve (All Types
3.9 Backsiphonage
20 Figure 7
3.10 Backsiphonage and Backpressure (Types 1 and 2
21 Figure 8
3.11 Relief of Intermediate Chamber Pressure (Types 1 and 2
3.12 Backflow Prevention (Types 3, 4 and 5
22 Figure 9
3.13 Backflow Preventer Attachment Requirements
3.14 Flow Rates and Pressure Loss
23 Table 1
24 Section IV
4.0 Detailed Requirements
4.1 Materials
4.2 Instructions
4.3 Marking
25 Section V
5.0 Definitions
26 Appendix A

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ASSE 1057 2012
$24.38