Ball valve for sensor

Abstract

Shut-off device, for example ball valve, for releasing and / or interrupting a fluid flow through a line, comprising: 1.1. a housing (25, 26) with an inlet and an outlet, 1.2. a ball (20) arranged in the housing (25, 26) with a flow opening (22) which is rotatably mounted in the housing (25, 26) between an open position and a closed position, 1.3. a spindle (10) which is mechanically coupled to the ball (20) in order to transmit a rotary movement to the ball (20), wherein 1.4. the spindle (10) has a recess (13) extending in the longitudinal direction of the spindle (10) for preferably releasably receiving a measuring probe (30), for example a temperature sensor, for detecting at least one physical and / or chemical property of the fluid flow, and 1.5.the measuring probe (30) can be received at least partially within the recess (13) of the spindle (10), so that a sensitive area (32) of the measuring probe (30) protrudes into the flow opening (22) of the sphere (20).