Lipine sila kaula

He kiʻiʻoniʻoni polytetrafluoroethylene (PTFE) no ka hoʻohana ʻana i ka hoʻopaʻa ʻana i nā kaula paipu. Kūʻai ʻia ka lipine i ʻoki ʻia i nā laula kikoʻī a ʻeha i ka spool, e maʻalahi ai ka makani a puni nā kaula paipu. Ua ʻike ʻia ʻo ia e ka inoa ʻoihana ʻo Teflon tape; ʻOiai ʻo Teflon he ʻano like me PTFE, ʻo Chemours (nā mea paʻa i ka hōʻailona kālepa) e noʻonoʻo i kēia hoʻohana hewa ʻana, ʻoiai ʻaʻole lākou e hana hou i ka Teflon ma ke ʻano lipine. ʻO nā kaula mai ka hopu ʻana i ka wā e wehe ʻia ai. ʻO ka lipine kekahi hana e like me ka deformable filler a me ka milo lubricant, e kōkua ana e sila i ka hui me ka ʻole o ka paʻakikī a i ʻole ka paʻakikī o ka hoʻopaʻa ʻana, a ma kahi o ka maʻalahi o ka hoʻopaʻa ʻana.

ʻO ka maʻamau, ua ʻōwili ʻia ka lipine a puni ke kaula o ka paipu ʻekolu manawa ma mua o ka wili ʻia ʻana. Hoʻohana maʻamau ia ma ke kālepa i nā noi e pili ana i nā ʻōnaehana wai kaomi, nā ʻōnaehana hoʻomehana waena, a me nā mea hoʻoemi ea.

Nā ʻano

Kūʻai pinepine ʻia ka lipine sila i loko o nā wili liʻiliʻi.
ʻElua mau kūlana US no ka hoʻoholo ʻana i ka maikaʻi o kekahi tape PTFE. ʻO MIL-T-27730A (kahi hōʻike pūʻali koa kahiko i hoʻohana mau ʻia i ka ʻoihana ma US) e koi i ka mānoanoa haʻahaʻa o 3.5 mils a me ka maʻemaʻe PTFE haʻahaʻa o 99%. ʻO ka lua o ka maʻamau, AA-58092, he papa kālepa e mālama ana i ka. koi mānoanoa o MIL-T-27730A a hoʻohui i ka liʻiliʻi liʻiliʻi o 1.2 g / cm3. Hiki ke ʻokoʻa nā kūlana kūpono ma waena o nā ʻoihana; ʻOi aku ka mānoanoa o ka lipine no nā lako kinoea (i nā kānāwai kinoea UK) e ʻoi aku ka mānoanoa o ka wai. ʻOiai ua kūpono ʻo PTFE ponoʻī no ka hoʻohana ʻana me ka oxygen kiʻekiʻe, pono e ʻike ʻia ka pae o ka lipine me ka ʻole o ka momona.

ʻO ka lipine seal thread i hoʻohana ʻia i nā noi plumbing he keʻokeʻo maʻamau, akā loaʻa nō hoʻi i nā kala like ʻole. Hoʻohana pinepine ʻia e pili i nā laina paipu kala kala (US, Kanada, Australia a me New Zealand: melemele no ke kinoea maoli, ʻōmaʻomaʻo no ka oxygen, etc.). Na Bill Bentley o Unasco Pty Ltd i hoʻokomo i kēia mau kala kala no ka lipine sealing thread i nā makahiki 1970. Ma UK, hoʻohana ʻia ka lipine mai nā mele kala, e laʻa me nā pahu melemele no ke kinoea, ʻōmaʻomaʻo no ka wai inu.

Keʻokeʻo - hoʻohana ʻia ma nā kaula NPT a hiki i 3/8 iniha
Melemele – hoʻohana ʻia ma nā kaula NPT 1/2 iniha a 2 ʻīniha, i kapa pinepine ʻia ʻo "gas tape"
ʻulaʻula – hoʻohana ʻia ma nā kaula NPT 1/2 iniha a 2 iniha, palekana no ka propane a me nā wahie hydrocarbon ʻē aʻe
ʻOmaomao - PTFE aila ʻole i hoʻohana ʻia ma nā laina oxygen a me kekahi mau kinoea lāʻau lapaʻau kūikawā
ʻAhinahina - loaʻa i ka nickel, anti-seizing, anti-gailling a me anti-corrosion, hoʻohana ʻia no nā paipu kuhili.
Copper - loaʻa nā granules keleawe a ua hōʻoia ʻia ma ke ʻano he lubricant thread akā ʻaʻole ia he mea sila
Ma ʻEulopa, ʻo ka BSI maʻamau BS-7786:2006 e kuhikuhi ana i nā māka like ʻole a me nā kūlana maikaʻi o ka lipine sealing thread PTFE.