VALVE ASSEMBLY AND RELATED ARRANGEMENTS

摘要

A valve assembly (100) has an inlet port (104) and an outlet port (106) linked by a fluid conduit (102) for allowing fluid to pass therebetween. The valve assembly comprises a stop valve having a spindle (112) that is centrally mounted within the valve assembly and a valve head (108) mounted on the spindle (112). The stop valve spindle (112) is operable to move the stop valve head (108) between an open position, in which the inlet port (104) is in communication with the outlet port (106), and a closed position, in which the outlet port is isolated from the inlet port. Also provided is a control valve having at least one spindle (114) that is eccentrically mounted within the valve assembly and a valve head (110) mounted on the at least one control valve spindle (114). The at least one control valve spindle is operable to move the control valve head (110) for graduated flow control of fluid passing along the fluid conduit (102) The stop valve head (108) is nested within the control valve head (110) when the stop valve is in the open position.