Ключевые слова:
Hydrants|Marking|Performance testing|Testing conditions|Size|Hydrostatic pressure|Copper alloys|Firefighting equipment|Seals|Straps|Valve components|Screw-down valves|Valves|Pressure testing|Temperature|Pressure|Flow rates|Water valves|Fire hydrants|Stop valves|Fire valves|Rising mains|Diaphragm valves|High-temperature testing|Leak tests|Ratings|Design|Hand wheels