Abstract: A valve assembly for an apparatus under pressure, includes a valve casing with a connecting pipe having formed therein a fluid passageway. A valve body is received in the valve casing and movable against a valve seat for sealing the fluid passageway and thereby separate a high-pressure zone from a low-pressure zone. Integrated in a handwheel of the valve body is a manometer which is constraint against rotation, when the handwheel is turned with respect to the manometer. The manometer is in communication with the high-pressure zone regardless whether the valve seat is closed or open.

Abstract: A valve assembly for an apparatus under pressure includes a valve casing including a connecting pipe for attachment to an apparatus under pressure, and a discharge pipe, with the connecting pipe and the discharge pipe being connected by a fluid-carrying pathway. Integrated in the valve casing are a shut-off valve for regulating a flow of fluid through the fluid pathway, and a control valve which includes a spring-loaded valve body having a fluid duct forming part of the fluid pathway. The valve body has one end accommodating a first sealing element movable by the valve body against a valve seat for sealing the fluid passageway and thereby separate an inlet pressure zone from an outlet pressure zone, and another end accommodating a second sealing element movable by the valve body against a seal seat.