Muamua: o le valve handwheel diameters ma le malosi e faatapulaaina, ma o nisi na vaai i le uili laitiiti lautele 300 pe a tolu pe fa tagata e faagaoioia e faigofie ona faaleagaina, o lea e tatau ona tatou gauai atu i le valve handwheel diameters itiiti ifo i le 320mm o le taimi e tasi le tagata e faagaoioia.
Lona lua: o le valve handwheel i tulaga masani, tulaga o le tulaga o le uili lima e mafai foi ona tatou valves e tutusa, valve handwheel faagaoioiga e tatau ona faʻataʻitaʻi faʻataʻitaʻi counterclockwise tatau ona tatala.
Tolu: o le valve handwheel faia i le tele e leverage, o nisi taimi tatou te nono mai nisi o osofaiga e tatala ma tapunia valves, o le mea sili ona taua o le matauina o tatou tulafono. E sili ona lamolemole ina ia aua ne'i fa'aleagaina fa'amau fa'amau.
