API 6A Wellhead tusi lesona & hydraulic Choke Valves

Fa'amatalaga Pupuu:

O le choke valve o se vaega autū o le la'au Kerisimasi ma ua mamanuina e pulea ai le gaosiga o le vaieli suau'u, o meafaitino o le tino ma vaega o le choke valve e matua ogatasi ma le API 6A ma le NACE MR-0175 Standard Specifications, ma e fa'aaogaina lautele mo le eliina o le suau'u i uta ma fafo. O le throttle valve e fa'aaogaina tele e fetu'una'i ai le tafe ma le mamafa o le manifold system; E lua ituaiga o flow control valves: fixed ma adjustable. O adjustable throttle valves e vaevaeina i le ituaiga nila, inner cage sleeve type, inner cage sleeve type ma orifice plate type e tusa ai ma le fausaga; E tusa ai ma le faiga o le fa'agaioiga, e mafai ona vaevaeina i le manual ma le hydraulic lua. O le pito i tua o le choke Valve o le filo po'o le Flange, e feso'ota'i e le o se flange po'o le flange. O le choke valve e pa'ū i: positive choke valve, needle choke valve, adjustable choke valve, cage choke valve ma orifice choke valve, ma isi.