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eLibrary > BS ISO 22073-1:2024 Gas welding equipment - Line pressure regulators and line pressure regulators with flow-metering devices for gas distribution pipelines up to 6 MPa (60 bar) >

BS ISO 22073-1:2024 Gas welding equipment - Line pressure regulators and line pressure regulators with flow-metering devices for gas distribution pipelines up to 6 MPa (60 bar), 2024

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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Design requirements [Go to Page]
5.1 Materials
5.2 Design and construction [Go to Page]
5.2.1 Oxygen pressure regulators
5.2.2 Acetylene pressure regulators
5.2.3 Connections
5.2.4 Filter
5.2.5 Pressure-adjusting device
5.2.6 Flow-control valve
5.2.7 Pressure gauges
5.2.8 Pressure relief valve
5.2.9 Leakage
5.2.10 Mechanical resistance
6 Operating characteristics [Go to Page]
6.1 Operating-temperature range
6.2 Coefficient of pressure increase upon closure R (applicable for line pressure regulators without flow-metering devices)
6.3 Accuracy classification (applicable for line pressure regulators with flow-metering devices)
7 Marking [Go to Page]
7.1 Line pressure regulators without flow-metering devices
7.2 Line pressure regulators with flow-metering devices
8 Instructions for use
9 Type-test procedure [Go to Page]
9.1 General
9.2 Test samples and necessary documents
9.3 Test conditions [Go to Page]
9.3.1 General characteristics of the test installation
9.3.2 Test gas
9.3.3 Accuracy of a flow-metering device
9.3.4 Pressure measurement
9.4 Units [Go to Page]
9.4.1 Pressure
9.4.2 Flow
9.4.3 Temperature
9.5 Test for performance and operating characteristics of pressure regulators without flow-metering devices [Go to Page]
9.5.1 General
9.5.2 Nominal discharge Qn
9.5.3 Coefficient of pressure increase upon closure, R
9.6 Test for accuracy classification of pressure regulators with flow-metering devices
9.7 Tests for mechanical resistance of pressure regulators or pressure regulators with flow-metering devices [Go to Page]
9.7.1 General
9.7.2 Test for mechanical resistance to internal pressure
9.7.3 Leakage tests
9.7.4 Oxygen pressure surge test
9.7.5 Acetylene decomposition test
9.8 Test for durability of markings
Bibliography [Go to Page]

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