| abstract |
The invention relates to a gas distribution assembly comprising a gas container ( 20 ), such as a gas cylinder, a valve unit fixed to the gas container ( 20 ) and a protective cap ( 1, 2, 3, 4 ) arranged around the said valve unit, the protective cap ( 1, 2, 3, 4 ) comprising an opening ( 9 ) in which a rotary control member ( 5 ) is housed. The opening ( 9 ) is bordered by a protruding brim ( 7 ) jutting out from the external surface of the body ( 2 ) of the protective cap ( 1, 2, 3, 4 ). The protruding brim ( 7 ) comprises a cutout ( 8 ) forming a reading window so that marks or markings ( 11 ) corresponding to gas flow-rate values can be read. |