一、产品特点：
上明牌不锈钢电动四通换向球阀为X形垂直通道的球阀，它的特点是球体的两条通道为X形布置，四个通道口径均布于球体赤道圆周截面上，当球体沿顺时针旋转90时，能使相邻的两个通道实现两两互通。
Features
Four-way direction changeable ball valve is a kind of ball valve with X-pattern vertical bore.It s feature is, the ball valve s two bores
are arranged to be X-pattern ,and its four bores are connected to each other two of adjacent bores can be connected to each other.
1.本阀门系列可配置多种驱动装置：
This ball valve can be e with several types of operation device.
2.四通球阀介质流向原理：
如图所示，“LL’’型四通球阀只需操作板手或执行器将球体转动90’，可同时对两种介质的流向进行切换，即方便而迅速，实现一阀多用的效果。
二、主要零件材质Main Patrs and Materials：
零件名称
Accessory name
材 质 Material
GB
ASTM
阀体、阀盖
Body,bonnet
WCB
A216-WCB
密封圈
Sealing Ring
PTFE、对位聚苯
PTFE、Counterpoint polypheny1
PTFE、对位聚苯
PTFE、Counterpoint polypheny1
球体 Ball
1Cr18Ni9Ti
SS 304
阀座、阀杆
Seat、Stem
2Cr13
A246-416
双头螺柱
Dual-head double-screw bolt
35CrMoA
A193-B7
三、主要性能规范 Main Performance Spcification：
公称压力 PN(MPa)
Nominal diameter
试验压力 Test pressure
壳体 Shell
高压液密封
High-pressure liquid sealing
低压气密封
Low-pressure hermetic sealing
1.6
2.4
1.76
0.6
2.5
3.75
2.75
4.0
6.0
4.4
CLASS150
3.O
2.2
适用工况
Applicable
Operating Mode
适用介质
Applicable medium
水、油品、气等非腐蚀介质和酸碱腐蚀介质
Non-corrosion medium such as water, oil products,
and gas, etc,and nitric acid corrosion medium.
适用温度
Applicable temperature
-28-350℃
应用规范
Applicable specification
连接法兰
Connecting flange
JB79-59、GB9113、HG20592-97、ANSI B16.5
检验试验
Test and inspection
GB9/T 9092-99、API 598
其余制造规范均按本厂标准
Other manufacturing standard is according to the standard of our factory