進口高壓蒸汽調(diào)節(jié)閥|高壓電動蒸汽調(diào)節(jié)閥|高壓氣動蒸汽調(diào)節(jié)閥
德國漢威HANWEI品牌:進口高壓蒸汽調(diào)節(jié)閥-平衡式迷宮調(diào)節(jié)閥,采用迷宮式閥籠結合平衡式閥芯設計。迷宮式套筒由同多個同軸表面分布著迷宮曲徑的圓柱碟片組成。根據(jù)介質(zhì)工藝參數(shù)不同,設計不同的迷宮曲徑規(guī)格與疊合層數(shù)組成閥籠,閥籠將總的流道分成許多細小的迂回甚至臺階狀分布的節(jié)流流道,迫使流體不斷地改變流向與流通面積逐步降低流體的壓力,以達到預防閃蒸空化的發(fā)生,延長閥內(nèi)件的使用壽命。采用平衡式套筒閥芯,閥芯與閥座的緊密配合確保了極低的泄漏。此種閥內(nèi)件適合于各種易產(chǎn)生阻塞流動造成汽蝕的工況。
控制閥參數(shù)說明:
閥內(nèi)件特點: 套筒導向型
平衡內(nèi)件結構
迷宮式閥籠結構
平衡密封環(huán)結構(常溫)
金屬密封環(huán)結構(高溫)
閥體類型: 直通式 角式
Z型閥體
閥蓋形式: 標準型, 散熱型,低溫型
流量特性: 等百分比 線性 快開
口徑范圍: DN15-400(1”-16”)
壓力等級: PN15、25、42Mpa(ANSI 900、1500、2500LB)
泄漏等級: ASME B16.104 Ⅴ(標準型金屬閥座)
管道連接方式: 法蘭式
對焊式
適用溫度范圍: -30° ~ 260°(平衡密封環(huán)結構)
-196° ~ 550°(金屬密封環(huán)結構)
執(zhí)行機構類型: 氣動薄膜式執(zhí)行機構
氣動活塞式執(zhí)行機構
電動執(zhí)行機構
高壓迷宮式調(diào)節(jié)閥
Series balanced labyrinth control valve adopts the labyrinth cage and balanced plug design. The labyrinth cage is composed of cylindrical discs with many coaxially distributed labyrinths. According to different technological parameters of the media, different labyrinth specifications and piling layers are designed to form the cage and the cage divides the whole flow channel into several tiny circuitous or step flow channels, forcing the fluids to continuously change the flow direction and flowing area and gradually reducing the pressure of fluids, so as to prevent the occurrence of flash evaporation and cavitation and prolong the service life of the trim. The balanced cage plug is adopted. The closely fit plug and seat ensure very low leakage. The trim is suitable for service conditions under which blocked flow will easily be produced and cavitation will be caused.
Parameters of control valves:
Trim features: cage guided
balanced trim structure
labyrinth cage structure
balanced seal ring structure(normal temperature)
metal seal ring structure (high temperature)
Body type: straight-through type
angle type
Z type body
Bonnet type: standard type
heat dissipation type
cryogenic type
Flow characteristic: equal percentage
linear
quick open
Size: DN25-400(1”-16”)
Pressure class: PN15、25、42Mpa(ANSI 900、1500、2500LB)
Leakage class: ASME B16.104 Ⅴ(standard type metal seat)
Pipe connection type: flange type
butt welding type
Applicable temperature range: -30CC° ~ 260CC°(balanced seal ring structure)
-196CC° ~ 550CC°(metal seal ring structure)
Actuator type: pneumatic diaphragm actuator
pneumatic piston actuator
electric actuator