A na-eji PTFE ntụ ntụ na-arụ ọrụ dị elu ịkwanye (mpikota onu) n'ime ọkpọkọ, a na-agwọ ya n'elu chemically, mgbe ahụ, a na-agbanye ya n'ime tube nchara na-enweghị ihe ọ bụla (obosara nke elu nke liner dị ntakịrị karịa n'ime oghere nke ígwè tube 1.5). -2mm) iji mepụta liner na-enweghị ihe ọ bụla. Iji mee ka nrụgide ahụ kwụsị, a na-etinye ya na ọkụ ọkụ ma kpoo ya na ogo 180 maka ọgwụgwọ okpomọkụ mgbe niile, nke mere na ọ dị mma iji mee ihe na okpomọkụ dị n'okpuru ogo 180. N'otu oge ahụ, axial. ike ike nke push (squeeze) ọkpọkọ nrụgide dị mma karịa nke ọkpọkọ ọkpọkọ, nke enwere ike iji na pipeline nrụgide micro-negative.