1. DN ka lebitso:
Flangebophara ba lebitso bo bolela bophara ba setshelo kapa phala e nang le flange.Bophahamo ba sets'oants'o bo bolela bophara bo ka hare ba setshelo (ntle le sets'oants'o se nang le tube joalo ka cylinder), bophara ba "peipi" bo bolela bophara ba eona ka lebitso, e leng boleng bo pakeng tsa bophara bo ka hare le bophara ba kantle. phala, eo boholo ba eona e leng haufi le bophara bo ka hare ba phala.Bophara bo ka ntle ba phala ea tšepe e nang le bophara bo tšoanang ba lebitso bo tšoana, 'me bophara bo ka hare bo boetse bo fapane hobane botenya bo ntse bo fetoha.14 Sheba tafole ea 1.

2. Khatello ea lebitso PN:
Khatello ea lebitso ke boemo ba khatello e abetsoeng ka morero oa ho theha maemo.14 Sheba tafole ea 2.
3. Khatello e phahameng e lumelletsoeng ea ho sebetsa:
Khatello ea lebitso ka har'a sejana sa khatello ea maemo a flange e khethoa tlas'a boemo bathepa ea flange16Mn (kapa 16MnR) le mocheso oa moralo 200oC.Ha thethepa ea flangele phetoho ea mocheso, khatello e phahameng e lumelletsoeng ea ho sebetsa ea flange e tla eketseha kapa e fokotsehe.Ka mohlala, khatello e phahameng e lumelletsoeng ea ho sebetsa ea flange e telele ea molala butt welding e bontšoa ho Lethathamo la 14-3.