Optimized combination of modular valve block solutions and durably reliable sealing with sealing method free from O-rings.
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 shall thus not only save the additional cost for the elastomer seals but also increases the service life of the modular valve solutions considerably, the manufacturer states. 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.
Depending on the requirements, stainless-steel screws or a thread directly machined into the multi-port valve block ensure the joint and compression of the two seal contours. The innovative joining principle is available for all 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.