| 摘要 |
The invention concerns a tap comprising a rod (6) adjusting the gas flow rate arranged inside a bore (18) of the tap body (4), comprising a cavity (80) communicating axially with a first gas passage (30), and laterally with an orifice 838) formed through the bore side wall, at the end of a second gas passage (36). The area of coincidence between the orifice (38) and a lateral opening (84) of the rod varies continuously and gradually during the rotation of the rod inside the bore. A thrust bearing (14) axially adjustable by means of a certain compressibility of its fixing tab (108) enables to calibrate the tap while it is being manufactured. The invention is applicable to taps for gas appliances.
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