| 摘要 |
In a membrane-controlled gas pressure regulator, the membrane (16) on the one hand carries the closing body (7) of a main gas valve (6, 7) provided between the inlet (4) and the outlet (5) and, on the other hand, carries the seat (21) of the servovalve (21, 22). The valve seat extends through the membrane and is passed through by a valve rod (23) carrying the closing body (22) of the servovalve. The rod is subject to the action of a powerful closing spring (25) for the servovalve (21, 22), the said spring being supported, on the one hand, in a fixed manner against the housing and, on the other hand, against the valve rod. A plunger-coil actuator (9-14) for the modulating control of the outlet gas pressure acts on the valve rod (23) in the opening direction of the servovalve (21, 22). <IMAGE> |
