Ключевые слова:
Designations, Preferred sizes, Design, Pressure regulators, Valves, Flow rates, Performance, Bend testing, Threads, Performance testing, Sound intensity, Leak tests, Environment (working), Testing conditions, Diameter, Pressure, Grades (quality), Dimensions, Hot-water supply systems, Hydraulic tests, Temperature, Castings, Water supply (buildings), Cold-water supply systems, Marking, Endurance testing, Pressure testing, Pipe fittings, Selection, Mechanical testing, Copper alloys, Classification systems, Watertightness tests