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Blowing Blocks

ACHIEVING ENERGY EFFICIENCIES ON A 40 BAR ECO SPACE BLOWING BLOCK

food vsp pet blowing block

CUSTOMER CHALLENGE

A market leader in bottling plants aimed to increase productivity for its customers, while also generating cost and energy savings.

NORGREN SOLUTION

Norgren helped them achieve these aims in two key ways. First, our compact designs enabled external dimensions of the valve block to be kept at a minimum – meaning they could accommodate 36 blowing stations instead of the usual 32. Just as importantly, the patented plastic piston technology means that they have been able to reduce dead space volume – wasted air – by more than 60%. In the cost-intensive 40 bar air process, this is a significant saving with positive implications for both the business and the environment.

Technically, the savings were achieved by an integrated choke and check valve for the first pressure stage, ensuring an optimum setting for the blowing process for each bottle type.

Together with other improvements to the stretch blow moulder, we’ve helped increase productivity and cut annual operating costs by €60,000 for the end user.

As an additional benefit, the flange-mounting design means the blowing blocks can be serviced easily without the need for detaching hoses.