The ball valve type K-KFK-D consists of a 2-piece body with a flange that is screwed or flanged on one side. Due to the design, the flow direction must be observed when using the ball valve as an end fitting. Up to nominal size DN 25, the stem is mounted from the outside using a threaded connection. The threaded connection used allows for easy replacement of the stem seal. A stem seal in accordance with TA-Luft regulations is standard from nominal size DN 32 and can be installed up to nominal size DN 25 at an additional cost upon request. Actuators can be mounted using an adapter kit. This retrofitting capability is standard.