Usoro a na-agụnye oghere na egbugbere ọnụ annular nke otu n'ime flange na-ejide ya na ebe kachasị elu na kọntaktị nke ọzọ iji mepụta akara akara mgbe flanges na-agbakọta.Ọnọdụ ma usoro ahụ na-agbapụta ma ọ bụ na-adabere na ọdịdị na akụkụ nke egbugbere ọnụ anular na nrụrụ ya n'oge kọntaktị.N'ime ọmụmụ ihe a, a na-eji akụkụ egbugbere ọnụ dị iche iche kwadebe ọtụtụ gasketless flanges iji nyochaa ọnọdụ kọntaktị na akara site na nyocha na nyocha FEM.Ntụle ndị ahụ na-egosi na enwere ike igosipụta ọnọdụ ndị ahụ na oke nrụgide kọntaktị na mpaghara mpaghara plastik mgbe a na-agbakọta flanges.Nnwale ntapu nke helium na-ekpughe nagasketless flangenwere mma akara arụmọrụ tụnyere ot gaskets.