Push-in Fittings Improving Safety of the Sealing Systems
Eisele’s Inoxline stainless steel push-in fittings has been developed a step further. Optimisation of the sealing system eliminates gaps or grooves in the tube.
With the advanced development of the 17B series, which was presented at Achema 2018 for the first time, Eisele has further optimised the sealing system of the successful Inoxline push-in fittings. In the new design, the O-ring is installed in front of the collet. This improves the tightness of the connection and eliminates gaps in the tube at the sealing point. In combination with FDA-compliant Viton seals, the series is recommended for diverse applications in processing and packaging technology, as well as food and pharmaceutical production, states the firm.
In addition to the high tightness in pressure and vacuum applications, the push-in fittings made of 1.4301/1.3207 stainless steel offer an easy-to-clean design and outstanding resistance to corrosion. The company adds that this selection of material also guarantees that the transported operating media can never be contaminated by material components or particles.
According to the company, the special sealing technology of the 17A series with two FKM (Viton) seals in the collet can withstand both internal gas pressures of up to 24 bar and a vacuum pressure as low as -0.95 bar. Depending on the media and connection sizes, pressures of up to 100 bar are also possible with liquids.
Many push-in fittings in the market are designed for high pressures, but that does not automatically make them suitable for vacuum applications. The firm adds that the release sleeves of push-in fittings with an inner collet enable quick assembly and disassembly of the tube. The second seal in the connections not only enables use under higher pressures, but also offers additional safety to prevent dirt from penetrating the system.