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ASME A112.1070 2020

ASME A112.1070 2020

$98.04

ASSE 1070-2020 / ASME A112.1070-2020 / CSA B125.70:20 Performance Requirements for Water Temperature Limiting Devices

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ASME 2020
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This Standard covers water temperature limiting devices intended to limit the hot or tempered water temperature supplied to fittings for fixtures such as sinks, bidets, lavatories, and bathtubs to reduce the risk of scalding. These devices are not designed to address thermal shock.

PDF Catalog

PDF Pages PDF Title
1 ASSE 1070-2020/ ASME A112.1070-2020/ CSA B125.70:20, Performance requirements for water temperature limiting devices
3 Standards Update Service
9 ASME A112 Standards Committee on Plumbing Materials and Equipment
13 ASSE Product Standards Committee
15 CSA Technical Committee on Plumbing Fittings
21 Preface
24 Section I
1 Scope
25 Section II
2 Reference publications and definitions
2.1 Reference publications
2.2 Definitions
26 Section III
3 Design and general requirements
3.1 Rated pressure, flow rate, and temperature range
3.1.1 Rated pressure
3.1.2 Flow rate
3.1.3 Temperature range
3.2 End connections
3.3 Function
27 3.4 Cross-flow
3.5 Toxicity and lead content
3.6 Devices incorporating electrical features
28 3.7 Servicing
Section IV
4 Performance requirements and test methods
4.1 General
4.1.1 Preconditioning
4.1.2 Installation for testing
4.1.3 Test sequence
4.2 High-temperature conditioning test
4.2.1 Purpose
4.2.2 Procedure
29 4.2.3 Failure criteria
4.3 Working pressure and temperature test
4.3.1 General
4.3.2 Purpose
4.3.3 Procedure with the valve closed
4.3.4 Procedure with the valve opened and the outlet(s) blocked
4.3.5 Test temperatures and pressures
4.3.6 Failure criteria
30 4.4 Cross-flow test
4.4.1 Purpose
4.4.2 Procedures
4.4.3 Failure criteria
4.5 Life cycle test
4.5.1 Purpose
4.5.2 Procedure
4.5.3 Failure criteria
31 4.6 Pressure and temperature variation test
4.6.1 Data gathering (see Figure )
4.6.2 Procedure (see Figure )
32 4.6.3 Failure criteria
4.7 Cold water supply failure test
4.7.1 Purpose
4.7.2 Procedure
33 4.7.3 Failure criteria
4.8 Hydrostatic pressure test
4.8.1 Purpose
4.8.2 Procedure
4.8.3 Failure criteria
Section V
5 Markings, packaging, instructions, and literature
5.1 Product markings
5.2 Temperature control setting identification
34 5.3 Packaging
5.4 Installation and maintenance instructions
5.5 Rated flow
5.6 Water temperature
36 Annex A (informative)Unit conversion and rounding criteria
37 Annex B (informative)Verifying the time constant of the temperature-measuring equipment

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ASME A112.1070 2020
$98.04