EO2-FORM is the new high pressure formed tube Generation of the Tube Fittings Division Europe. As with EO2-Plus, it is designed in to eliminate leakage in all fluid systems, by using elastomeric sealing systems.
The common feature of all EO2-FORM connections are the EO2 seal elements (Dry Technology) as well as the new cold forming process, that gives extreme rigidity and low tightening torques. The seals are now also available in FPM (e.g. Viton®) for applications with higher temperatures or aggressive media. Through EO2-FORM, elastomeric sealing technology is made available even where bite-type connectors are not popular, like in hydraulic presses, cranes, lifts or ship canal locks. Compared to welding or brazing, the EO2-FORM process is faster and easier. It does not require special tube treatment, heating or chemicals.
EO2-FORM is designed for metric tube and fully interchangeable to the complete Ermeto Original product range according to ISO 8434-1 / DIN 2353. EO2-FORM is available in “L“- and “S“-Series.
The high volume elastomeric seal assures a hermetically sealed tube joint. It is located in between the inner cone of the fitting body and the tube surface, thus blocking the only possible leak path.
Due its large cross section, the seal effectively compensates for all manufacturing tolerances between the tube and fitting cone.
The sealing effect is pressure supported which makes the EO2-FORM fitting ideal for high pressure applications. The static compression also eliminates air-ingress into the fluid system in vacuum conditions.
Elastomerically sealed EO2-FORM fittings do not require any retightening even in heavy-duty applications. Seal extrusion is prevented by proper housing without gaps or dead volume areas.
The sealing lip is bonded to a metallic support ring.
The cold-forming of the tube is carried out by the EO2-FORM machine. Machine operation and tool set-up are optimised for short cycle times, which makes the process easy and fast. The tube is
connected when the sealing ring is fixed and the nut is tightened. The working contact area of the EO2-FORM connection is the flat front surface of the metallic support ring which is made of heat-treated, high-strength steel. This provides superior mechanical strength without settling, loosening or need for re-tightening.