概述
三通球阀系列对介质流向的不同切换要求可分为Q44L型与Q45T型
Summary
According to different switching requirements to the flow
direction of medium, three-way ball valve series can be divi-ded into two types:Q44L
and Q457.
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概述
三通球阀系列对介质流向的不同切换要求可分为Q44L型与Q45T型，
如图A．L型可实现对介质流向进行切换，亦可使相互垂直的两个通道连通或关闭。
如图B．T型可实现对介质的分流或混流，不仅可以实现介质流向的切换，
也可使三个通道互相连通，还可以关闭任一通道，连通另外两个通道。
本阀门具有结构紧凑．造形美观．密封性能好等特点。
Summary
According to different switching requirements to the flow
direction of medium, three-way ball valve series can be divi-ded into two types:Q44L
and Q457. As shown in Fig. A, L-type cannot oniy switch the flow direction of medium
but o-nly connect or close two orthogonal pipes. As shown in Fig.B, T type cannot only
switch the flow direction of medium, bu-t also connect three pipes with each other,
or close any one of three ways and connect the other two pipes. This valve ha-s such
advantages as compact structu re, beautiful outline, a-nd good sealing performance, etc
三通球阀介质流向示意图
Sketch of Medium Flow-direction of Three-way BallValve
三通球阀用于分流或汇台流通，是具有=面或四面阀座的多通口球蠲．任一通口可用作入
口而无泄漏。三通既可制成L型通口也可制成T型通口。
Three-way ball valve is used for diffluence or confHlue.t circulalio.
With two-sid. or four-sida valve base embodying multiple channels All
the channals can be used as e.t,ance. with no leakage The three-way
can be made to L-shaped channel or T-shaped channel
主要性能规范 Main Specifications
试验压力（MPa）
Testpressure
公称压力PN Nonial pressure（MPa）
1.6
2.5
壳体强度试验
Shellstrength test
2.4
3.75
密封试验（液）
Seal test
1.76
2.75
|
|
主要零件材料Material of Main Parts
|
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主要连接及外形尺寸Main connection and external dimensions（mm）
|
公称通径Nominal diameter |
d |
D1 |
H |
L1 |
L2 |
W |
|
|
15 |
1/2″ |
15 |
15 |
65 |
140 |
70 |
130 |
|
20 |
3/4″ |
20 |
20 |
84 |
165 |
83 |
160 |
|
25 |
1″ |
25 |
25 |
84 |
165 |
83 |
160 |
|
40 |
11/2″ |
40 |
40 |
152 |
250 |
125 |
500 |
|
50 |
2″ |
50 |
50 |
157 |
260 |
130 |
500 |
|
65 |
21/2″ |
65 |
65 |
183 |
320 |
160 |
800 |
|
80 |
3″ |
80 |
80 |
183 |
320 |
160 |
800 |
|
100 |
4″ |
100 |
100 |
195 |
370 |
185 |
800 |
|
125 |
5″ |
125 |
125 |
355 |
510 |
255 |
850 |
|
150 |
6″ |
150 |
125 |
355 |
510 |
255 |
850 |
|
200 |
8″ |
200 |
150 |
430 |
580 |
290 |
1500 |
|
250 |
10″ |
250 |
203 |
475 |
670 |
335 |
|
|
300 |
12″ |
300 |
254 |
550 |
720 |
360 |
|
注：法兰接口尺寸与Q41F型号相同（尺寸详见表）
Note：Flange interface size as Model 041F（For dimensions refer to the form on page）
