| 摘要 |
The invention is a direct acting gas pressure regulator (1; 20) comprising: one gas inlet duct (6; 25) communicating with a high pressure chamber (6a; 25a); one gas outlet duct (7; 26) communicating with a low pressure chamber (7a; 26a); one communication passage (8; 27) between the high pressure chamber (6a; 25a) and the low pressure chamber (7a; 26a), associated with a movable shutter (9; 28); a control head (2; 21 ) in which it is possible to identify a motor-chamber (3; 22) delimited by a deformable membrane (4; 23); means (1 1; 30) for connecting the shutter (9; 28) to the deformable membrane (4; 23), defining for the shutter (9; 28) a sliding direction (Y) between the closed position and the open position referred to the communication passage (8; 27). The gas pressure regulator (1; 20) comprises one magnetic element (13; 32) opposed to one element (14; 33) sensitive to the attraction force exerted by the magnetic field produced by the magnetic element (13; 32), of which one first element (13; 32) is operatively associated with the shutter (9; 28). |
