1. Flange pito i luga: faʻataʻitaʻiina masini avetaʻavale, faʻamalieina ISO5211

2. Valve tino: u'amea ductile ma isi mea talafeagai e tatau ona filifilia

3. Valve ipu: o le streamlined valve ipu e mafai ona fa'aitiitia lelei le gau o le mamafa ma le gau o le tafe. O le pito o le valve plate o loʻo faʻaogaina i luga o le spherical ma faʻalelei lima. O loʻo i ai uiga o le laʻititi faʻaogaina faʻapitoa, ola umi o le nofoa valve ma faʻamaufaʻailoga lelei. E mafai ona filifilia e tusa ai ma mea eseese o ala o faasalalauga. E fesoʻotaʻi ma le tuʻuina atu i totonu o le uʻamea faʻasolosolo, faʻatasi ai ma le sili atu o le anti-corrosion performance.
4. nofoa valve paʻu: nofoa valve seevae ma nofoa valve tuʻufaʻatasia e mafai ona vavaeeseina atoa le tino valve mai le ala. Pe a faatusatusa i isi valve fausaga, o le nofoa valve e sili atu ona mautu ma e maualalo le tau o le torque. E leai se mana'oga e fa'aopoopo i ai fa'a'au'au i pito uma e lua a'o fa'apipi'i. E mafai ona faʻaoga i mea eseese ma talafeagai mo le pito o le paipa (ituaiga lug).
5. Valve rod: o le laina tutotonu ituaiga lua afa afa ala valve ua mamanuina ma laugatasi, sikuea ma le hexagonal valve plate transmission, faʻamaufaʻailoga e lua, leai se leakage, ma leai se tafega faʻatapulaʻa i le taimi o faʻapipiʻi.
7. "O" mama: NBR butyl pa'u, puipuia lelei le pefu ma le leakage puipuiga totonu.
8. 'U' ituaiga loka loka ma circlip mafai lelei ona puipuia le au mai le feula i fafo.