一、產品特點：
上明牌不銹鋼電動四通換向球閥為X形垂直通道的球閥，它的特點是球體的兩條通道為X形布置，四個通道口徑均布于球體赤道圓周截面上，當球體沿順時針旋轉90時，能使相鄰的兩個通道實現兩兩互通。
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.本閥門系列可配置多種驅動裝置： This ball valve can be equipped with several types of operation device.
2.四通球閥介質流向原理： 如圖所示，“LL’’型四通球閥只需操作板手或執行器將球體轉動90’，可同時對兩種介質的流向進行切換，即方便而迅速，實現一閥多用的效果。
二、主要零件材質Main Patrs and Materials：
零件名稱 Accessory name
材 質 Material
GB
ASTM
閥體、閥蓋 Body,bonnet
WCB
A216-WCB
密封圈 Sealing Ring
PTFE、對位聚苯 PTFE、Counterpoint polypheny1
球體 Ball
1Cr18Ni9Ti
SS 304
閥座、閥桿 Seat、Stem
2Cr13
A246-416
雙頭螺柱 Dual-head double-screw bolt
35CrMoA
A193-B7
三、主要性能規范 Main Performance Spcification：
公稱壓力 PN(MPa) Nominal diameter
試驗壓力 Test pressure
殼體 Shell
高壓液密封 High-pressure liquid sealing
低壓氣密封 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
適用工況 Applicable Operating Mode
適用介質 Applicable medium
水、油品、氣等非腐蝕介質和酸堿腐蝕介質 Non-corrosion medium such as water, oil products, and gas, etc,and nitric acid corrosion medium.
適用溫度 Applicable temperature
-28-350℃
應用規范 Applicable specification
連接法蘭 Connecting flange
JB79-59、GB9113、HG20592-97、ANSI B16.5
檢驗試驗 Test and inspection
GB9/T 9092-99、API 598
其余制造規范均按本廠標準 Other manufacturing standard is according to the standard of our factory.
四、上明牌不銹鋼電動四通換向球閥主要外型與連接尺寸表Form of Main Types and Connecting Dimension：
公稱壓力或壓力級 Nominal pressure
主要尺寸 Main dimension
公稱通徑
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
其余的法蘭尺寸請參閱樣本 <主要外型及連接尺寸表>