气动固定球阀球阀的球体．采用上、下两根阀杆固定．工作时，流体压力不会使球体向阀座移动，阀座不会承受过大压力而变形。阀杆部分设有自润滑轴承，减少磨擦，开关扭距小，两阀座均采用弹簧设预紧。密封采用聚四氟乙烯镶入钢固内，钢圈后部设有弹簧，保证阀座紧贴球体。当阀门中腔压力异常升高超过弹簧顶紧力，阀座后退脱离球体，达到自动泄压效果，压后阀座自动复位。结构的先进性使固定球阀的密封性能稳定操作省力，使用寿命长 ,极适用于长输管线和一般管线。
主要技术参数
|
要零件
|
阀体
|
|
|
|
|
|
|
|
|
球体、阀杆
|
420
|
|
|
|
|
|
F51
|
|
密封圈
|
特种硬化材料
|
|
填料、垫圈
|
柔性石墨环 柔性石墨缠绕垫
|
|
适用工况
|
适用介质
|
|
|
适用温度
|
-28-400℃ -28-500℃
|
|
应用规范
|
设计制造接
|
|
GB12237-89 |
API6D |
JPI7S-48 |
|
|
法兰迟寸接
|
|
JB79-59、GB9113、HG20592-97 |
ANSI B16.5 |
JIS B2212-2214 |
|
|
结构长度接
|
|
GB12221-89 |
ANSI B16.10 |
JIS B2002 |
|
|
检验试验接
|
|
GB/T13927-89 JB/T9092-99 |
API598 |
API598 |
|
Q47固定软(硬)密封球阀主要连接尺寸(GB规格)
|
公称压力
PN(Mpa)
|
公称通径
Dn(Mpa)
|
|
|
L
|
D
|
DI
|
D2
|
b
|
f
|
Z-φd
|
H(347型)
|
|
1.6
|
50
|
216
|
160
|
125
|
100
|
18
|
3
|
4-18
|
|
|
65
|
24l
|
180
|
145
|
120
|
18
|
3
|
4-18
|
|
|
80
|
283
|
196
|
160
|
136
|
20
|
3
|
8-18
|
|
|
100
|
306
|
215
|
180
|
165
|
20
|
3
|
8-18
|
|
|
125
|
356
|
245
|
2lO
|
185
|
22
|
3
|
8-18
|
|
|
150
|
394
|
280
|
24O
|
2lO
|
24
|
3
|
8-23
|
305
|
|
200
|
467
|
336
|
296
|
266
|
26
|
3
|
12-23
|
398
|
|
250
|
53S
|
405
|
355
|
320
|
30
|
3
|
12-25
|
495
|
|
300
|
6lO
|
460
|
4lO
|
375
|
30
|
4
|
12-25
|
580
|
|
350
|
686
|
620
|
470
|
436
|
34
|
4
|
16-26
|
625
|
|
400
|
762
|
580
|
626
|
485
|
36
|
4
|
16-30
|
720
|
|
450
|
864
|
64O
|
585
|
545
|
40
|
4
|
20-30
|
770
|
|
500
|
914
|
706
|
650
|
808
|
44
|
4
|
20-34
|
840
|
|
600
|
1067
|
84O
|
770
|
718
|
48
|
4
|
20-41
|
920
|
|
700
|
1245
|
9lO
|
840
|
788
|
50
|
5
|
24-41
|
990
|
|
2.5
|
50
|
216
|
160
|
125
|
100
|
20
|
3
|
4-18
|
|
|
65
|
24l
|
180
|
145
|
120
|
22
|
3
|
8-18
|
|
|
80
|
288
|
195
|
180
|
135
|
22
|
3
|
8-18
|
|
|
100
|
305
|
230
|
190
|
160
|
24
|
3
|
8-23
|
|
|
126
|
38l
|
270
|
220
|
188
|
28
|
3
|
8-26
|
|
|
150
|
403
|
300
|
250
|
218
|
30
|
3
|
8-25
|
305
|
|
200
|
602
|
360
|
3lO
|
278
|
34
|
3
|
12-25
|
398
|
|
260
|
568
|
426
|
370
|
332
|
36
|
3
|
12-30
|
495
|
|
300
|
648
|
485
|
430
|
390
|
40
|
4
|
16-30
|
580
|
|
350
|
762
|
550
|
490
|
448
|
44
|
4
|
16-34
|
625
|
|
400
|
8S8
|
6lO
|
650
|
505
|
48
|
4
|
16-34
|
720
|
|
450
|
914
|
660
|
600
|
666
|
60
|
4
|
20-34
|
770
|
|
500
|
99l
|
730
|
660
|
6lO
|
52
|
4
|
20-4l
|
840
|
|
600
|
1143
|
84O
|
770
|
718
|
56
|
5
|
20-4l
|
920
|
|
700
|
1346
|
956
|
875
|
816
|
60
|
6
|
24-48
|
990
|
|
4．O
|
50
|
216
|
160
|
125
|
100
|
20
|
3
|
4-18
|
|
|
65
|
24l
|
180
|
145
|
120
|
22
|
3
|
8-18
|
|
|
80
|
293
|
196
|
160
|
136
|
22
|
3
|
8-18
|
|
|
100
|
305
|
230
|
190
|
160
|
24
|
3
|
8-23
|
|
|
125
|
38I
|
270
|
220
|
188
|
28
|
3
|
8-25
|
|
|
150
|
403
|
300
|
250
|
218
|
30
|
3
|
8-25
|
305
|
|
200
|
602
|
376
|
320
|
282
|
38
|
3
|
12-30
|
398
|
|
250
|
568
|
445
|
385
|
345
|
42
|
3
|
12-34
|
495
|
|
300
|
648
|
5lO
|
450
|
408
|
46
|
4
|
16-34
|
580
|
|
350
|
762
|
570
|
5lO
|
466
|
52
|
4
|
16-34
|
625
|
|
400
|
838
|
656
|
685
|
636
|
68
|
4
|
16-41
|
720
|
|
450
|
914
|
680
|
6lO
|
560
|
60
|
4
|
20-4l
|
770
|
|
500
|
99l
|
755
|
670
|
612
|
62
|
4
|
20-48
|
840
|
|
600
|
1143
|
890
|
795
|
730
|
62
|
6
|
20-48
|
920
|
|
700
|
1346
|
996
|
900
|
835
|
68
|
5
|
24-54
|
990
|
|
6.4
|
50
|
292
|
175
|
135
|
105
|
26
|
3
|
4-23
|
|
|
65
|
330
|
200
|
160
|
130
|
28
|
3
|
8-23
|
|
|
80
|
366
|
2lO
|
170
|
14O
|
30
|
3
|
8-23
|
|
|
100
|
4S2
|
260
|
200
|
168
|
32
|
3
|
8-26
|
|
|
125
|
508
|
295
|
240
|
202
|
36
|
3
|
8-30
|
340
|
|
160
|
669
|
340
|
280
|
240
|
38
|
3
|
8-34
|
435
|
|
200
|
660
|
406
|
345
|
300
|
44
|
3
|
12-34
|
|
|
250
|
787
|
470
|
4OO
|
352
|
48
|
3
|
12-41
|
|
|
300
|
838
|
5SO
|
460
|
412
|
54
|
4
|
16-4l
|
|
|
360
|
889
|
595
|
526
|
476
|
60
|
4
|
16-41
|
|
|
400
|
99l
|
670
|
686
|
526
|
66
|
4
|
16-48
|
|
