Abstract: A diaphragm for a diaphragm valve comprises a base body made from an elastomer, the base body having a side facing towards the media and a side facing away from the media. A force transmission component is disposed at the base body on the side facing away from the media for the attachment of a spindle drive for a diaphragm valve. Furthermore, the base body has a reinforcement area, the reinforcement area being disposed on the outside of the base body on the side of the base body facing away from the media.

Abstract: The invention relates to a hand valve with a valve main body and a spindle movably arranged therein in at least in one actuating direction which can be adjusted for actuating the hand valve by means of a hand wheel arranged on the spindle in its position relative to the valve main body together with the hand wheel. The hand valve has a stroke limitation for the spindle with a stopper element which is adjustable in its position with respect to the valve main body. The invention is characterized in that the stroke limitation has a holding device for the stopper element which is held rotatable with the hand wheel, but fixed in its position to the valve main body in the actuating direction of the spindle at the valve main body.

Abstract: The invention relates to a hand valve with a valve main body and a spindle movably arranged therein in at least in one actuating direction which can be adjusted for actuating the hand valve by means of a hand wheel arranged on the spindle in its position relative to the valve main body together with the hand wheel. The hand valve has a stroke limitation for the spindle with a stopper element which is adjustable in its position with respect to the valve main body. The invention is characterized in that the stroke limitation has a holding device for the stopper element which is held rotatable with the hand wheel, but fixed in its position to the valve main body in the actuating direction of the spindle at the valve main body.