Tapepala ya PTFE, yomwe imadziwika kuti ndi Teflon tepi. Tepi ya PTFE ikhoza kugwiritsidwa ntchito kuti ipangitse mafuta otukusira, ndi zomwe zimalola kukonza ulusi wozama ndikuthandizira kuteteza ulusi kuti usagwedezeke pamene sanagwiritsidwe ntchito. Tepi ya PTFE ikhoza kugwiritsidwanso ntchito ngati ulusi wothandizira ziwalo zomangira zolimba popanda kuumitsa.
Ma PTFE omwe amagwiritsidwa ntchito pamipope nthawi zambiri amakhala oyera, koma angagwiritsidwenso ntchito m'malo osiyanasiyana: chikasu cha gasi, green for oxygen, etc. ku United States, Canada, Australia, ndi New Zealand; chikasu cha gasi, chobiriwira cha madzi akumwa ku UK.
White: chifukwa NPTthreads mpaka 3/8 inch.
Mphuno: 1 / 2pm mpaka 2 inch kwa threads za NPT, zomwe nthawi zambiri zimatchedwa & quot; gasipi tepi & quot ;.
Piritsi: 1/2 inchto 2 inch kwa ulusi wa NPT, otetezeka ku propane ndi mafuta ena a hydrocarbon.
Chobiriwira: PTFE yopanda mafuta kwa mizere ya oksijeni ndi magetsi ena a zachipatala.
Gray: containnickel, anti-occlusion, anti-wear and anti-corrosion, kwa chitsulo chosapanga dzimbiri.
Mkuwa: uli ndi mkuwa wamtengo wapatali ndipo umatsimikiziridwa ngati ulusi wopangira koma osati wothandizira.
