3112L低溫雙座調節閥
3111L
低溫單座調節閥
3111L Low Temperature Single-seat Control Valve
3112L
低溫雙座調節閥
3112L Low Temperature Double-seat Control Valve
采用長閥桿延長閥蓋形式，起到散熱作用使壓蓋保持常溫，以提高閥蓋密封性能。每臺做低溫沖擊試驗和低溫處理，提高閥門使用壽命，主要用于乙烯、液化天然氣裝置、空分設備、制氧機、石油、化工、冶金、電站等工業部門。
They employ long stems and bonnets to maintain room temperature of gland by avoiding the action of external heat,to improve the sealability of the bonnets;each valve is processed with low temperature impact test and low-temperature treatment to improve the service life of valves;they are mainly used in the air seperation unit of ethyleneliquefied natural gass device,oxygen generator and other fields.
| 技術規格 TECHNICAL SPECIFICATIONS | |
| 型號/Model | 3111L,3112L |
| 公稱通徑/Nominal Diameter | (1/2A~20A)DN15~DN500 |
| 公稱壓力/Nominal Pressure | ANSI Class150~600,PN1.0~10.0MPa |
| 介質溫度/Medlium Temperature | -196~+45℃ |
| 連接方式/Connection Type | 法蘭式(RF/MFM/RJ),焊接式（50A以下為SW,80A以上為BW）Flange(RF、MFM、RJ），Weld ends(SW:2" and under,BW:3" and over) |
| 閥體材質/Material of Valve Body | CF8、CF8M、CF3M、LF4 |
| 閥內件材質/Material of Valve Trim | CF8、CF8M、CF3M |
| 可調比/Rangeability | 20:1~50:1 |
| 流量特性/Flow Characteristics | 等百分比、線性、改良等百分比 Equal percentage、Linear、ModlifiedEQ% |
| 閥座泄漏量/Valve Seat Leakage | 硬密封Metal seat:ANSI ClassV,Vor MSS-SP-61 軟密封Soft seat:微氣泡級Bubble-tight,ANSI Class VI |
| 執行機構/Actuator | BM氣動薄膜執行機構Pneumatic Diaphragm Actuator QP氣動活塞式執行機構Pneumatic Cylinder Actuator PSL全電子式執行機構Solid State Electronic Actuator |