详细资料Details：
气动球阀开关轻便，体积小，可以做成很大口径，密封可靠，结构 简单，维修方便，密封面与球面常在闭合状态，不易被介质冲蚀，在各行业得到广泛的应用。
Pneumatic valve switch light, small size, can be made large caliber, reliable sealing, simple structure, easy maintenance, with the spherical sealing surface often in the closed state, the media can not easily be eroded in the industry that is widely used.
主要外形和连接尺寸单位Main external and connecting dimensions(mm)：
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
CLASS150
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>
Flange dimensions refer to the rest of the sample <Main external and connecting dimensions table>
注：“LL’型气动四通换向球阀组成，是一种旋转类切断调节阀门，具有关闭严密，结构紧凑，重量轻，维修方便等优点。广泛用于气体、液体、蒸汽、油品等腐蚀性介质的管道自动化控制中。
Note: The winning numbers, "LL 'pneumatic four-way reversing valve component is a rotary type cutting off regulating valves, has closed tight, compact, light weight, easy maintenance etc. are widely used in gas, liquid , steam, oil and other corrosive media pipeline automation control.
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