Ko te paipa maitai tui 20# he mea whakamahi i te maitai waro kounga teitei 20# hei rauemi mata, he paipa maitai tui waro kounga teitei ātete wera e whakamahia whānuitia ana i roto i ngā hanganga whare me ngā hanganga miihini.

Ko ngā āhuatanga o te maitai 20# e whai ake nei: he pai te kirihou me te kaha ki te whakarewa. Nā te iti o tōna kaha, he pai mō te tukatuka matao me ngā whakaaturanga kāore i te kaha teitei.

Ka taea te whakamahi i te paipa maitai 20# tui i roto i ngā ahumahi e whai ake nei:

1. Mō ngā paipa kōhua ​​pēhanga iti me te pēhanga waenga, ko te paerewa whakatinanatanga koGB 3087, e whakamahia ana hei hanga i ngā ngongo whakamahana nui me ngā ngongo pakitara whakamatao-wai o ngā kohua pēhanga reo me te iti (pēhanga mahi ≤5.9 MPa), e noho ana i roto i te taiao whakapūngao pāmahana teitei (≤480℃) + te kohu wai mō te wā roa.

2. Ngā paipa pakaru hinu, ko te paerewa whakatinanatanga koGB 9948, e whakamahia ana mō ngā tauhohenga, ngā whakawhiti wera, me ētahi atu o ngā waeine whakamahine hinu, e pā ana ki ngā pāpāho waikawa (H₂S, CO₂) me te pēhanga teitei (tae atu ki te 15 MPa)

3. Ngā taputapu tongi pēhanga-teitei, ko te paerewa whakatinanatanga koGB 6479, e whakamahia ana mō ngā taputapu tongi pēhanga teitei (10~32 MPa) pērā i te haukini hangai me te urea, e pā ana ki ngā pāpāho tino waikura (pērā i te haukini wai, te urea rewa)

Ngā paipa maitai kore-whakarewa wera mō ngā tautoko waipēhi, ko te paerewa whakatinanatanga koGB/T17396, e whakamahia ana mō ngā pou tautoko waipēhi me ngā tītaha i roto i ngā maina waro, ā, e tu atu ana ki ngā kawenga tauutuutu auau-teitei (50~100 MPa) me te wiri pānga