Chubu cha mkuwa chimapangidwa ndi 99.9% ya mkuwa woyeretsedwa ndi zinthu zazing'ono zosakaniza ndipo zimagwirizana ndi miyezo ya ASTM yofalitsidwa. Ndi zolimba komanso zofewa, zomwe zikutanthauza kuti chitolirocho chatsekedwa kuti chifewetsedwe. Machubu olimba amalumikizidwa ndi zolumikizira za capillary. Mapayipi amatha kulumikizidwa m'njira zina, kuphatikiza zolumikizira zokakamiza ndi zoyatsira. Zonsezi zimapangidwa ngati nyumba zopanda msoko. Mapaipi a mkuwa amagwiritsidwa ntchito mu mapaipi, HVAC, firiji, kupereka gasi wazachipatala, makina oponderezedwa a mpweya ndi makina a cryogenic. Kuphatikiza pa mapaipi wamba a mkuwa, mapaipi apadera a alloy amapezekanso.
Mawu oti mapaipi amkuwa ndi osagwirizana pang'ono. Pamene chinthucho chapindidwa, nthawi zina chimatchedwa chubu cha mkuwa chifukwa chimawonjezera kusinthasintha ndipo chimalola kuti zinthuzo zipindidwe mosavuta. Koma kusiyana kumeneku sikuli kusiyana komwe kumavomerezedwa kapena kuvomerezedwa ndi anthu ambiri. Komanso, mapaipi ena amkuwa olunjika pakhoma nthawi zina amatchedwa mapaipi amkuwa. Kugwiritsa ntchito mawuwa kumatha kusiyana malinga ndi wogulitsa aliyense.
Mapaipi onse ndi ofanana kupatula kusiyana kwa makulidwe a khoma, pomwe chubu cha K chili ndi makoma okhuthala kwambiri motero ndi mphamvu yapamwamba kwambiri. Mapaipi awa ndi ocheperako ndi 1/8″ kuposa mainchesi akunja ndipo amapezeka mu kukula kuyambira 1/4″ mpaka 12″, onse okokedwa (olimba) ndi opindidwa (ofewa). Mapaipi awiri okhuthala a khoma amathanso kupindika mpaka mainchesi awiri. Mitundu itatu imapangidwa ndi wopanga: wobiriwira wa K, wabuluu wa L, ndi wofiira wa M.
Mitundu ya K ndi L ndi yoyenera kugwiritsidwa ntchito pa mphamvu monga ma compressor a mpweya ndi kubweretsa gasi wachilengedwe ndi LPG (K ya pansi pa nthaka, L ya mkati). Mitundu yonse itatuyi ndi yoyenera kugwiritsidwa ntchito pa madzi apakhomo (mtundu wa M umakondedwa), kusamutsa mafuta ndi mafuta (mtundu wa L umakondedwa), machitidwe a HVAC (mtundu wa L umakondedwa), kugwiritsa ntchito vacuum ndi zina zambiri.
Machubu otulutsira madzi, zinyalala ndi machubu otulutsira mpweya ali ndi makoma opyapyala komanso mphamvu zochepa. Amapezeka m'makulidwe kuyambira 1-1/4″ mpaka 8″ ndi achikasu. Amapezeka m'makulidwe olunjika a mapazi 20, koma nthawi zambiri amakhala aafupi.
Machubu omwe amagwiritsidwa ntchito ponyamula mpweya wamankhwala ndi mtundu wa K kapena mtundu wa L wokhala ndi zofunikira zapadera zoyera. Mafuta omwe amagwiritsidwa ntchito popanga machubu ayenera kuchotsedwa kuti asayake pamene pali mpweya komanso kuti wodwalayo akhale ndi thanzi labwino. Mapaipi nthawi zambiri amalumikizidwa ndi mapulagi ndi zipewa akamatsukidwa ndipo amamatiridwa ndi nitrogen purge panthawi yoyika.
Mapaipi omwe amagwiritsidwa ntchito pokonza mpweya wabwino komanso kuziziritsa amawonetsedwa ndi kukula kwa m'mimba mwake wakunja, zomwe ndi zosiyana ndi gululi. Kukula kwake kumayambira 3/8″ mpaka 4-1/8″ pa kudula kolunjika ndi 1/8″ mpaka 1-5/8″ pa ma coil. Kawirikawiri, mapaipi awa ali ndi mphamvu yokwera kwambiri pa kukula komweko.
Mapaipi a mkuwa amapezeka m'mitundu yosiyanasiyana ya alloys kuti agwiritsidwe ntchito mwapadera. Machubu a mkuwa a Beryllium amatha kuyandikira mphamvu ya machubu a alloy achitsulo, ndipo mphamvu yawo yotopa imawapangitsa kukhala othandiza kwambiri pa ntchito zapadera monga machubu a Bourdon. Alloy ya mkuwa-nickel imalimbana kwambiri ndi dzimbiri m'madzi a m'nyanja, ndipo machubu nthawi zambiri amagwiritsidwa ntchito m'malo a m'nyanja komwe kukana kukula kwa barnacle ndi phindu lowonjezera. Copper-Nickel 90/10, 80/20 ndi 70/30 ndi mayina odziwika bwino a zinthuzi. Machubu a mkuwa opanda mpweya wambiri amagwiritsidwa ntchito kwambiri pa ma waveguide ndi zina zotero. Machubu a mkuwa okhala ndi titaniyamu angagwiritsidwe ntchito mu zosinthira kutentha zowononga.
Monga tanenera kale, mapaipi amkuwa amalumikizidwa mosavuta pogwiritsa ntchito njira zotenthetsera monga kuwotcherera ndi kupangira chitsulo. Ngakhale njira izi ndizokwanira komanso zosavuta kugwiritsa ntchito monga madzi apakhomo, kutentha kumapangitsa kuti chitoliro chokokedwacho chikhale chonyowa, zomwe zimachepetsa kuthamanga kwake. Pali njira zingapo zamakani zomwe sizisintha mawonekedwe a chitoliro. Izi zikuphatikizapo zolumikizira zoyaka, zolumikizira zozungulira, zolumikizira zokakamiza ndi zolumikizira zokankhira. Njira izi zolumikizira zamakaniko ndizothandiza kwambiri pazochitika zomwe kugwiritsa ntchito lawi kapena kutentha sikotetezeka. Ubwino wina ndikuti zina mwa zolumikizira zamakaniko izi ndizosavuta kuchotsa.
Njira ina, yomwe imagwiritsidwa ntchito ngati nthambi zambiri ziyenera kutuluka mu chitoliro chachikulu chomwecho, ndikugwiritsa ntchito chida chotulutsira mpweya kuti apange malo otulukira mwachindunji mu chitolirocho. Njirayi imafuna kusungunula cholumikizira chomaliza, koma sikufuna kugwiritsa ntchito zolumikizira zambiri.
Nkhaniyi ikufotokoza mwachidule mitundu ya mapaipi amkuwa. Kuti mudziwe zambiri za zinthu zina, chonde onani malangizo athu ena kapena pitani ku Thomas Sourcing Platform kuti mupeze magwero omwe angapezeke kapena onani tsatanetsatane wa zinthu zina.
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