Ho feta lilemo tse 20 boiphihlelo ba tlhahiso. Lihlahisoa tseo re ka li fang phala ea tšepe, li-fittings tsa lipeipi tsa bw, li-fittings tse entsoeng, li-flange tse entsoeng, li-valve tsa indasteri. Bolts & Nuts, le gaskets. Lisebelisoa li ka ba tšepe ea carbon, tšepe e sa hloekang, Cr-Mo alloy steel, inconel, incoloy alloy, mocheso o tlaase oa carbon steel, joalo-joalo. Re ka thabela ho fana ka sephutheloana se felletseng sa merero ea hau, ho u thusa ho boloka litšenyehelo le ho le bonolo ho reka kantle ho naha.