Patent ID: 11865762
Assignee: KRONES AG
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 14:
15. A method for transforming plastic preforms into plastic containers having at least one transforming device which has a blow molding device, within which the plastic preforms are transformed into the plastic containers by being acted upon with a flowable medium wherein an application device applies the flowable medium to the plastic preforms and a stretching device which has a rod-shaped body which is able to be introduced into the plastic preforms which stretches the plastic preforms at least temporarily during their transforming process in the longitudinal direction thereof, wherein by a drive device of the stretching device the rod-shaped body is moved and a control device controls the drive device and wherein by a valve arrangement the application of the plastic preforms with a flowable medium takes place, wherein this valve arrangement performs the application of the plastic preforms with at least two different pressure levels and this valve arrangement has at least one proportional valve, wherein the control device controls the drive device as a function of a valve position of the at least one proportional valve, wherein a detection device detects a position of the rod-shaped body, wherein the detection device detects a moving speed of the rod-shaped body, wherein the proportional valve is able to be cleaned with a sterilization medium including hydrogen peroxide, and wherein the proportional valve is at least partially made of materials which are resistant with respect to hydrogen peroxide.