The advantages of plastic for safe dishwashing

The challenge

Industrial dishwashing systems often use aggressive chemicals. Various safe solutions have been developed for dosing chemicals such as rinse aids, and one system - developed in consultation with a manufacturer - already bears Attema Kunststof & Techniek's signature. Some time ago, the same company joined forces with Attema Kunststof & Techniek to develop a new dosage system that meets stringent requirements. To do so, it was necessary to subject various components to thorough checks. Experience with first-generation dosage systems enabled Attema Kunststof & Techniek to make a rapid start. It was immediately clear, for instance, how to translate chemical stability requirements into an appropriate choice of material.

The approach

The concept, part of which was developed by Attema Kunststof & Techniek, comprises a single coupling to which eleven different locks can be mounted. This choice was based on financial and logistic considerations, the coupling being the most expensive component. Every mould key has a unique colour and the colours match the fastenings and the packaging colours of the various chemicals. In order to satisfy safety requirements for the final product, the locks had to be made to an extremely high level of accuracy. The components were welded ultrasonically. Attema Kunststof & Techniek also contributed towards the development of the integrated detection system (with float level indicator). The high safety requirements the system has to meet make it necessary to conduct countless tests during production, including testing of tensile-strength, compression (up to 10 bar), leakage and fit. Now that the system has been taken into production, each single coupling is checked by Attema Kunststof & Techniek.

The result

A top-grade system for rapidly and safely connecting and disconnecting chemicals containers. With identifiable colour codes combined with special mould keys to prevent swapping of chemicals. In terms of safety and human engineering, this is a system that meets the most stringent requirements to the fullest extent.