A na-ejikarị PVC eme ihe na mmiri na ọkpọkọ ọwa mmiri, flanges bụ obere flanges 200 na n'okpuru, nkọwapụta bụ DN25 (mụrụ 32, ọkpọkọ ọkpọkọ 32), DN40 (mụrụ 45, dakọtara 45 ọkpọkọ), DN50 (mmụrụ 57), DN80 (mụrụ). 89), DN100 (gbara 108), DN150 (gbara 159) ... Flanges n'elu bụ isi 4 oghere ...
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