The book is intended for technical workers related to industrial gas equipment (designers, installers, employees of operating organizations, LD engineers). The book describes more than 3000 samples of various devices and equipment used in gas distribution networks: connecting parts and elements of steel and polyethylene pipelines, pipeline valves, gas pressure regulators, gas filters, pre-storage valves, gas analyzers, gas flow meters (household, utility and industrial meters, measuring complexes, metering points), gas control points and installations (including with gas flow metering units), equipment for liquefied carbon-hydrogen gases, mixing plants for creating synthetic natural gas, universal modular boiler houses and transportable boiler plants.