Valve Body for Bottle Blowing Machine Parts

Valve response lag or non-linear proportional flow output causes an instantaneous pressure overshoot during pre-blowing, directly resulting in severe bottle wall thickness imbalance or localized blow-out scrap.

The core of eliminating pressure overshoot lies in the suppression of internal flow channel vortices and precise control of millisecond-level step response. We modified the internal flow channel of the valve cavity into a Venturi converging curve, utilizing the Coanda effect to eliminate turbulent vortices of high-pressure gas at the turns, dead-locking the pressure step response time to within 15 milliseconds. Simultaneously, in the valve seat area subjected to the instantaneous impact of 40bar high-pressure airflow, the sealing surface adopts a specific 15-degree chamfer geometry paired with high-temperature polyurethane. This smooth transition of the flow boundary layer prevents extreme airflow expansion within micro-clearances, thereby evenly distributing local shear stress and physically severing the failure path where the seal ring is cut by high-speed airflow or cavitation micro-pores form on its surface.

Molds and replacement accessories satisfying the operational needs of blow molding, filling, and labeling equipment of brands such as Sidel, Krones, KHS, and Tetra Pak.

During on-site replacement, the mounting hole pattern on the valve base plate utilizes an asymmetric, error-proof thread layout. This design completely circumvents thread interference and lateral extrusion caused by incorrect rotation angles during blind installation on a narrow, densely piped valve island, eliminating hidden air leak risks caused by uneven force on the base plate and significantly improving the fault tolerance of single-valve offline quick replacement. If you want to learn more about this product, please feel free to contact us for more information.

Sidel®,Tetra Pak®, Krones®, and KHS® are registered trademarks of their respective owners. Jihengfeng Precision Machinery (Shanghai) Co., Ltd. is an independent manufacturer and is not affiliated with, authorized, or endorsed by these companies.