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 equipped 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
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.
四、上明牌不锈钢电动四通换向球阀主要外型与连接尺寸表Form of Main Types and Connecting Dimension：
公称压力或压力级 Nominal pressure
主要尺寸 Main dimension
公称通径
15/1/2″
20/3/4″
25/1″
32/11/4″
40/11/2″
50/2″
65/21/2″
80/3″
100/4″
125/5″
150/6″
200/8″
PN1.6MFb
L
150
180
200
220
240
260
280
320
380
440
550
PN2.5MFh
L1
75
90
100
110
120
130
140
160
190
275
PN4.0MFb
H
102
115
135
155
185
210
305
335
W
250
350
420
700
1000
1300
1800
其余的法兰尺寸请参阅样本 <主要外型及连接尺寸表>
