Tsarin ya haɗa da tsagi da leɓe na annular wanda ke riƙe da ɗayan flange tare da mafi girman matsayi a lamba tare da sauran flange don samar da layin hatimi lokacin da aka haɗa flanges. Sharadi ko tsarin ya zube ko a'a ya dogara da siffa da girman lebe na annular da nakasar sa yayin saduwa. A cikin wannan binciken, an shirya flanges marasa gasket da yawa tare da nau'ikan lebe daban-daban don bincika yanayin hulɗa da hatimi ta hanyar gwaji da kuma nazarin FEM. Binciken ya nuna cewa za'a iya bayyana yanayin dangane da matsakaicin matsakaicin lamba da girman yankin filastik lokacin da aka haɗa flanges. Gwajin leak na helium ya nuna cewagasketless flangeyana da mafi kyau sealing yi idan aka kwatanta da na al'ada gaskets.