Abstract: A ball valve has a body, a stem engaging a ball closing component having a main flow hole and auxiliary flow holes, and a spanner having shaft body and a handle. The shaft body has a base with a seating hole and a latch with an elastic pressure element located slidably in the base. In the body there is a recess which accepts an end of the latch to retain the spanner in a position where flow is effected through the auxiliary flow holes and not the main flow hole. The shaft body is connected with the stem by a screw. A handle is connected to an upper end of the shaft body.

Abstract: A ball valve is made of a body (1) of a stem (3) and a ball closing component (2) with a main hole (8) and additional passage holes (9) characterised in that it has a spanner (7) made of a root (10) and a handle (11). The root (10) contains a base (12) with a sediment hole (13) and it is equipped with a latch (14) with an elastic pressure element (15) located slidably in the base (12). In the body (1) there is a recess (18) opened from the root (10) in which the latch (14) is placed with its end. The spanner (7) is connected with the stem (3) by means of a screw (17) screwed in a stem axis. The spanner for the ball valve is made of a root (24) and a handle (25). In the base (26) of the root (24) there is a sediment hole (27) and a latch (28) with an elastic pressure element (29). The latch (28) has a shape of a pin element having a sediment end (30) on one side and a flange (31) located nearby, and a handle (32) on second side.