DBB fa'alua polo valve o le fa'alua tapuni, fa'alua fa'amavae ma fa'amalolo galuega fa'amavae. Afai o pito uma e lua o le valve o loʻo i lalo o le mamafa i le taimi e tasi, o le ala i totonu o le valve cavity e mafai ona faʻateʻa ese mai le valve blowdown poʻo le valve valve, ma o le a le faʻaauauina le ulu atu i luga ma lalo o le valve i totonu o le valve cavity, ma toetoe lava lua poloka. A oʻo i le maualuga o le potu ogatotonu, e mafai e le nofoa valve ona faʻamatuʻu otometi le mamafa, o lona uiga, faʻamalolo. E fa'atatau ile kerosene va'alele, suau'u mama, kesi fa'alenatura, kesi fa'afefeteina, kesi paipa, vaila'au vaila'au, ma isi.
O uiga autu o le fausiaina o le JLPV DBB lua polo valve o loʻo mulimuli mai:
1. 1PC, 3PC ma fausaga tino uma uelo.
2. E mafai ona mamanuina e pei o le polo opeopea ma le polo tumau.
3. Tatala atoa po'o le tapuni atoa poloka fa'afa'alua poloka (DBB) mamanu.
4. Fa'ailoga fa'amaufa'ailoga fa'alua fa'amaufa'ailoga e fa'amautinoa ai le fa'amaufa'ailogaina o le tino o le valve, fa'atasi ai ma le leai o se leaka.
5. Anti-flying stem, faʻalavelave faʻafuaseʻi faʻapipiʻiina o le nofoa ma le aʻa, afi saogalemu ma le anti-static design, ma le tino valve ua tuʻuina atu i le vaeluagalemu e lafoai ai masini.
Ole laina ole JLPV DBB faʻailoga lua polo valve e faʻapea:
1. Tele: 2" i le 24" DN50 i le DN600
2. Omiga: Vasega 150lb i le 2500lb PN10-PN420
3. Mea: uʻamea carbon, uʻamea uʻamea ma isi mea uʻamea masani.
NACE MR 0175 mea u'amea e tete'e i le sulfur ma mea e fa'a'ele'ele ai.
4. Fa'amuta le feso'ota'iga: ASME B 16.5 i foliga si'i (RF), mata mafolafola (FF) ma le Tu'aiga Fa'amama Mama (RTJ)
ASME B 16.25 ile pito vili.
5. Fua fa'afesaga'i: fa'atatau ile ASME B 16.10.
6. vevela: -29 ℃ i le 425 ℃
JLPV valves e mafai ona faʻapipiʻiina i masini faʻaogaina, pneumatic actuators, hydraulic actuators, eletise eletise, lokaina masini, faʻalautele aʻa ma le tele o isi o loʻo avanoa e faʻafetaui manaoga o tagata faʻatau.
