3112L低温双座调节阀
3111L
低温单座调节阀
3111L Low Temperature Single-seat Control Valve
3112L
低温双座调节阀
3112L Low Temperature Double-seat Control Valve
采用长阀杆延长阀盖形式，起到散热作用使压盖保持常温，以提高阀盖密封性能。每台做低温冲击试验和低温处理，提高阀门使用寿命，主要用于乙烯、液化天然气装置、空分设备、制氧机、石油、化工、冶金、电站等工业部门。
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.
| 技术规格 TECHNICAL SPECIFICATIONS | |
| 型号/Model | 3111L,3112L |
| 公称通径/Nominal Diameter | (1/2A~20A)DN15~DN500 |
| 公称压力/Nominal Pressure | ANSI Class150~600,PN1.0~10.0MPa |
| 介质温度/Medlium Temperature | -196~+45℃ |
| 连接方式/Connection Type | 法兰式(RF/MFM/RJ),焊接式（50A以下为SW,80A以上为BW）Flange(RF、MFM、RJ），Weld ends(SW:2" and under,BW:3" and over) |
| 阀体材质/Material of Valve Body | CF8、CF8M、CF3M、LF4 |
| 阀内件材质/Material of Valve Trim | CF8、CF8M、CF3M |
| 可调比/Rangeability | 20:1~50:1 |
| 流量特性/Flow Characteristics | 等百分比、线性、改良等百分比 Equal percentage、Linear、ModlifiedEQ% |
| 阀座泄漏量/Valve Seat Leakage | 硬密封Metal seat:ANSI ClassV,Vor MSS-SP-61 软密封Soft seat:微气泡级Bubble-tight,ANSI Class VI |
| 执行机构/Actuator | BM气动薄膜执行机构Pneumatic Diaphragm Actuator QP气动活塞式执行机构Pneumatic Cylinder Actuator PSL全电子式执行机构Solid State Electronic Actuator |