Monga kutchinjiriza kwamafuta ofunikira komanso zida zotumizira muumisiri wamakono wamapaipi, mapaipi achitsulo opangidwa ndi insulated amagwiritsidwa ntchito kwambiri m'mafakitale amafuta, mankhwala, ndi kutentha. Kuchita kwawo kumakhudza mwachindunji chitetezo chadongosolo komanso mphamvu zamagetsi. Kuonetsetsa kuti mankhwala khalidwe ndi kudalirika polojekiti, kupanga ndi kuvomereza insulated mipope zitsulo ayenera mosamalitsa kutsatira mfundo zofunika kukhazikitsa.
Mfundo zazikuluzikulu zoyendetsera mapaipi achitsulo m'dziko langa ndi monga GB/T 29047-2012, "High-polyethylene outer sheath pipe, polyurethane foam plastic prefabricated direct-buried insulated pipe" ndi CJ/T 114-Highdenness{1}2017{17} chitoliro cha sheath, pulasitiki ya thovu ya polyurethane yopangidwa ndi chitoliro chodziwikiratu chokwiriridwa ndi zomangira." Miyezo iyi imapereka mwatsatanetsatane za zida zachitsulo zachitsulo, kapangidwe kake kazitsulo, magwiridwe antchito akunja, komanso zofunikira zonse zaukadaulo. Mwachitsanzo, mapaipi achitsulo nthawi zambiri amakhala opanda msoko kapena amawotcherera mozungulira, ndipo zinthuzo ziyenera kutsatira miyezo ya GB/T 8163 kapena GB/T 9711 kuti zitsimikizire kupirira mphamvu ndi kukana dzimbiri. Zosanjikiza zotsekemera nthawi zambiri zimapangidwa ndi thovu lolimba la polyurethane, lomwe limakhala ndi kutsika kwamafuta komanso mphamvu zopondereza kwambiri. makulidwe ake ndi kachulukidwe ayenera kukwaniritsa kapangidwe zofunika kuchepetsa kutaya kutentha ndi kuteteza chitoliro zitsulo. Chovala chakunja nthawi zambiri chimapangidwa ndi polyethylene yapamwamba kwambiri (HDPE), yomwe imapereka kukana kwanyengo komanso mphamvu zamakina. Miyezo imafotokoza momveka bwino kukana kwake komanso kukana kupsinjika kwa chilengedwe.
Kuphatikiza apo, miyezo yapadziko lonse lapansi monga ISO 23940:2019, "Prefabricated Insulated Piping Systems," imapereka zolozera pazogulitsa zotumizidwa kunja, kugogomezera kugwirizana kwa zinthu ndi moyo wautali-wautumiki. Mu ntchito zauinjiniya, miyezo iyenera kusankhidwa kutengera zochitika zina. Mwachitsanzo, makina otenthetsera m'matauni angatanthauze CJJ/T 81-2013, "Technical Specification for Directly Buried Hot Water Pipelines for Urban Heating," pomwe makampani a petrochemical amatha kutsatira API kapena ASTM.
Kutsatira mosamalitsa miyezo yamakampani ya mapaipi azitsulo zotsekera sikungotsimikizira kuti{0}}mapaipi akugwira ntchito kwanthawi yayitali, komanso kumathandizira kuti magetsi aziyenda bwino komanso kuchepetsa mtengo wokonza. Ndi kupita patsogolo kwaukadaulo, miyezo idzakulitsidwanso bwino, ndikuyendetsa kukula kwa mapaipi achitsulo opangidwa ndi insulated kuti azitha kugwira bwino ntchito komanso kukhala mwaubwenzi ndi chilengedwe.
