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New, self-sealing GEMÜ connection principle for modular valve solutions

Durably reliable sealing with sealing method free from O-rings

© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG

Sample configuration – GEMÜ iComLine with O-ring-free sealing © GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG

Faulty O-rings can cause direct and indirect consequential costs through machine downtimes, recalls or environmental damage. In the presence of chemicals and additives as well as of elevated temperatures, these elastomer seals reach their limits of wear soon.

Therefore, GEMÜ has developed an innovative sealing method without O-ring for its iComLine product range. Two contours synchronized with each other fit with precision and thus ensure lasting, reliable sealing. The developed sealing principle without O-rings thus not only saves the additional cost for the elastomer seals but also increases the service life of the modular valve solutions considerably.

The new sealing method makes almost deadleg-free sealing possible. In addition, the optimized installation of accessory parts and additional connections to the various multi-port valve blocks support the modular and consequently flexible construction of the multi-functional iComLine block solutions.

Depending on the requirements, stainless-steel screws or a thread directly machined into the GEMÜ PC50 multi-port valve block ensure the joint and compression of the two seal contours. The innovative joining principle is available for all GEMÜ PC50 iComLine multi-port valve blocks made of PTFE material. It is qualified for an operating pressure up to 6 bar and can be used at media temperatures from -10 to +150 °C.

The GEMÜ PC50 iComLine block solutions with O-ring-free sealing are available now in nominal sizes 3/8“ and 1/2“. Further nominal sizes can be qualified on request and provided in a customised manner.