| 摘要 |
<p>A valve for regulating the fluid pressure and/ or the fluid flow rate in a fluid distribution network, said valve comprising; a fluid inlet port (10) and a fluid outlet port (14); a first stator defining an interior space; and a main pressure control means for regulating the pressure difference between the fluid inlet port and the fluid outlet port, which main pressure control means comprises a turbine (18) which is rotatably arranged in the interior space and means for controlling the rotation of the turbine. The valve further comprises an auxiliary pressure control means, which is arranged to limit the fluid pressure at the fluid outlet port to a predetermined maximum value.</p> |
