ConcentricʻO ka PTFE Lining Valve ka mea i ʻike ʻia he fluorine plastic lined corrosion resistant valves, he fluorine plastic i hoʻoheheʻe ʻia i loko o ka paia o loko o ke kila a i ʻole ka hao pahu e lawe ana i nā ʻāpana a i ʻole ka ʻili o waho o nā ʻāpana o loko.ʻO nā plastic fluorine ma aneʻi ka mea nui: PTFE, PFA, FEP a me nā mea ʻē aʻe.Hoʻohana mau ʻia ka pālele lele FEP, ka valve butterfly coated teflon a me FEP lined butterfly valve i loko o ka media corrosive ikaika.