Acoustics. Laboratory tests on noise emission from appliances and equipment used in water supply installations. Part 3: Mounting and operating conditions for in-line valves and appliances (ISO 3822-3:2018)
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ISO 3822-3:2018 specifies the mounting and operating conditions to be used for in-line valves and appliances which control the flow, pressure or temperature of the water in water supply installations, when measuring noise emission resulting from water flow. ISO 3822-3:2018 is applicable to in-line valves and appliances of maximum nominal size DN 32 and to systems in which the maximum water flow rate does not exceed 1,6 l/s. NOTE See ISO 6708; DN is the symbol for "nominal size". The number of the nominal size is loosely related to the inside diameter (in millimetres) of the in-tine valves and appliances. The procedures described are for general use for all types of in-line valves of conventional design.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Mounting
4.1 General
4.2 Fitting to the test pipe
4.3 Mounting of in-line valves and appliances with screwed conditions
4.4 Mounting of in-line valves and appliances with provision for soldering in copper connecting pipes
4.5 Mounting of in-line valves and appliances fitted with copper connecting pipes
4.6 Mounting of in-line valves or appliances with two inlets
4.7 Discharge connection
5 Test procedure
5.1 General test conditions
5.2 Procedure for stop valves
5.3 Procedure for control valves
5.4 Procedure for valves and appliances operated by water flow
5.5 Procedure for automatic in-line valves or appliances operated by water pressure
5.6 Procedure for automatic in-line valves and appliances operated by water temperature
5.7 Procedure for “safety groups”
6 Test report
Annex A Example of low noise flow resistance (informative)
ISO 3822-1:1999 Acoustics -- Laboratory tests on noise emission from appliances and equipment used in water supply installations -- Part 1: Method of measurement
ISO 49:1994 Malleable cast iron fittings threaded to ISO 7-1
ISO 3822-1:1999 Acoustics -- Laboratory tests on noise emission from appliances and equipment used in water supply installations -- Part 1: Method of measurement
ISO 49:1994 Malleable cast iron fittings threaded to ISO 7-1