Safety devices for gas supply installations operating at working pressures up to 100 bar; pressure relief governors and safety shut-off devices— 15 стр.
Couplings on railway-wagons for powdered and granulated material, change over with adapter R4 for evacuation, nominal size 100, nominal pressure 10— 1 стр.
Component parts in the gas installation; requirements on metallic materials for valves being used for gas appliances, notes for selection for materials, strength data— 8 стр.