DBB double ball valve ndi yotseka kawiri, yopuma pawiri komanso yotulutsa ntchito. Pamene malekezero onse a valavu akupanikizika panthawi imodzimodzi, sing'anga muzitsulo za valve imatha kutulutsidwa kuchokera ku valve blowdown kapena valve valve, ndipo kumtunda ndi kumtunda kwapakati kwa valve sikudzapitirira kulowa mu valve, ndipo pafupifupi midadada iwiri. Pamene chipinda chapakati chili ndi mphamvu zambiri, mpando wa valve ukhoza kumasula mphamvuyo, ndiko kuti, kumasula. Amagwiritsidwa ntchito palafini wandege, mafuta opepuka, gasi, gasi wamadzimadzi, gasi wamapaipi, sing'anga yamankhwala, etc.
Zomangamanga zazikulu za JLPV DBB valavu iwiri ya mpira ndi izi:
1. 1PC, 3PC ndi zonse welded thupi kumanga.
2. Zitha kupangidwa ngati mpira woyandama komanso mpira wokhazikika.
3. Full lotseguka kapena zonse kutseka awiri chipika blowdown (DBB) kamangidwe.
4. Mapangidwe a ma valve awiri osindikizira amaonetsetsa kuti thupi la valve likugwira ntchito, ndikutuluka kwa ziro.
5. Tsinde la anti-flying, dongosolo la jekeseni ladzidzidzi la mpando ndi tsinde, chitetezo cha moto ndi anti-static design, ndipo thupi la valve limaperekedwa ndi chimbudzi chapakati kuti chitulutse chipangizo.
Mapangidwe a JLPV DBB awiri a valve valve ndi motere:
1. Kukula: 2 "mpaka 24" DN50 mpaka DN600
2. Kupanikizika: Kalasi 150lb mpaka 2500lb PN10-PN420
3. Zida: zitsulo za carbon, zitsulo zosapanga dzimbiri ndi zipangizo zina zachitsulo.
NACE MR 0175 anti-sulfure ndi anti-corrosion zitsulo zipangizo.
4. Kulumikizana kumatha: ASME B 16.5 mu nkhope yokwezeka (RF), Flat face(FF) ndi Ring Type Joint (RTJ)
ASME B 16.25 m'mapeto opotoka.
5. Miyezo ya nkhope ndi maso: igwirizane ndi ASME B 16.10.
6. Kutentha: -29 ℃ mpaka 425 ℃
Ma valve a JLPV amatha kukhala ndi zida zamagetsi, ma pneumatic actuators, ma hydraulic actuators, magetsi amagetsi, zida zotsekera, tsinde zotalikirana ndi zina zambiri zilipo kuti zikwaniritse zomwe makasitomala amafuna.
