Valve for turbine, has spherical throttle valve with passage having valve that receives piston controlled between closing and opening positions by control link, and diffuser with passages linked to annular chamber

摘要

The valve has a spherical throttle valve (2) with a passage (7) between upstream and downstream conduits (CAM, CAV). The passage has a valve (8) receiving a piston controlled between closing and opening positions by a control link (9). The valve (8) has body with the surface forming a valve seat against which rests the piston in the closing position. A diffuser has passages linked to an annular chamber.