I-Thread seal tape (ephinde yaziwe ngokuthi yi-PTFE tape noma i-plumber's tape) ifilimu ye-polytetrafluoroethylene (PTFE) ukuze isetshenziswe ukuvala imicu yamapayipi. Itheyiphu idayiswa isikwe ngobubanzi obuthile futhi ilinyazwe ku-spool, okwenza kube lula ukuzungeza imicu yamapayipi. Kubuye kwaziwe ngegama lohwebo elenziwe kabusha le-Teflon tape; kuyilapho i-Teflon empeleni ifana ne-PTFE, amaChemours (abaphathi bezimpawu zokuhweba) abheka lokhu kusetshenziswa okungalungile, ikakhulukazi njengoba bengasayikhiqizi i-Teflon ngendlela yetheyiphu. izintambo ekubanjweni lapho zikhishwa.Itheyiphu iphinde isebenze njengesigcwalisi esigogekile kanye ne-lubricant yentambo, isiza ukuvala ilunga ngaphandle kokuqinisa noma ukwenza kube nzima ukuqiniswa, futhi esikhundleni salokho yenza kube lula ukuqiniswa.
Imvamisa itheyiphu isongwe ngentambo yepayipi izikhathi ezintathu ngaphambi kokuthi isikulufe endaweni yayo. Ivamise ukusetshenziselwa ukuthengisa ezinhlelweni ezifaka amasistimu amanzi anomfutho, amasistimu okushisa aphakathi nendawo, kanye nemishini yokucindezelwa komoya.
Izinhlobo
I-Thread seal tape ngokuvamile ithengiswa kuma-spools amancane.
Kunezindinganiso ezimbili zase-US zokunquma ikhwalithi yanoma iyiphi i-PTFE tape. I-MIL-T-27730A (incazelo yezempi ephelelwe yisikhathi esasetshenziswa kakhulu embonini yase-US) idinga ukujiya okuncane okungu-3.5 mils kanye nobuncane be-PTFE ubumsulwa obungu-99%.Izinga lesibili, AA-58092,ibanga lezohwebo eligcina isidingo sokujiya se-MIL-T-27730A futhi sengeza ukuminyana okuncane okungu-1.2 g/cm3.Amazinga ahambisanayo angahluka phakathi kwezimboni; itheyiphu yokufakwa kwegesi (kuya eziqondisweni zegesi yase-UK) idingeka ukuthi ibe mkhulu kunaleyo yamanzi. Nakuba i-PTFE ngokwayo ilungele ukusetshenziswa ne-oxygen enomfutho ophezulu, izinga letheyiphu kufanele futhi laziwe ngokuthi alinawo amafutha.
I-Thread seal tape esetshenziswa ekufakweni kwamapayipi ngokuvamile imhlophe, kodwa futhi itholakala ngemibala ehlukahlukene. Ivamise ukusetshenziselwa ukuhambisana namapayipi anekhodi enemibala (US, Canada, Australia kanye ne-New Zealand: ophuzi ngegesi yemvelo, oluhlaza okomoya, njll.). Lawa makhodi ombala wetheyiphu yokuvala intambo yethulwa nguBill Bentley we-Unasco Pty Ltd ngeminyaka yawo-1970. E-UK, i-tape isetshenziswa kusuka kuma-reel anemibala, isb amareli aphuzi egesi, aluhlaza okotshani emanzini aphuzwayo.
Okumhlophe - kusetshenziswe emicu ye-NPT efika ku-3/8 intshi
Okuphuzi - kusetshenziswa imicu ye-NPT engu-1/2 intshi ukuya ku-2 intshi, ngokuvamile ebizwa ngokuthi “i-gas tape”
Pinki - esetshenziswa emicu ye-NPT engu-1/2 intshi ukuya ku-2 intshi, iphephile ku-propane namanye amafutha e-hydrocarbon
I-PTFE eluhlaza – engenawo uwoyela esetshenziswa emigqeni ye-oxygen kanye namagesi athile ezokwelapha
Okumpunga - kuqukethe i-nickel, i-anti-seizing, i-anti-gailling kanye ne-anti-corrosion, esetshenziselwa amapayipi angenasici
I-Copper - iqukethe ama-granules ethusi futhi iqinisekiswa njengesithambiso sentambo kodwa hhayi isivali
E-Europe indinganiso ye-BSI BS-7786:2006 icacisa amabanga ahlukahlukene kanye namazinga ekhwalithi yetheyiphu yokuvala intambo ye-PTFE.
Isikhathi sokuthumela: Apr-04-2017