用途与特点闸阀是一种最常见的启闭阀,利用闸板的上下工作来接通(全开)和截断(全关)管道中的流体介质。
1、流体阻力小,密封面受介质的冲刷和侵蚀小(闸板开启高度高)。
2、开启较有力,密封性能好,介质流向不受限制,不扰流,不降压力。
3、形体简单,制造工艺性好,适用范围广。
执行标准
设计与制造
|
结构长度
|
法兰尺寸
|
压力温度
|
试验检验
|
GB12234
|
GB12221
|
GB9113 JB79
|
GB9131
|
GB/T13927 JB/T9092
|
压力试验
公称压力
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
强度试验
|
2.4
|
3.8
|
6.0
|
9.6
|
15.0
|
24.0
|
水密封试验
|
1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
18.0
|
上密封试验
|
1.8
|
2.8
|
4.4
|
7.04
|
11.0
|
18.0
|
气密封试验
|
0.4-0.7
|
主要零件材料及性能
体盖板
|
阀 杆
|
密封面
|
垫 片
|
填 料
|
工作温度℃
|
适用介质
|
WCB
|
2Cr13
|
13CrSTL本体材料尼龙
|
增强柔性石墨1Cr13/柔性石墨08软钢0Cr18Ni9Ti0Cr17Ni12Mo2TiXD550F(T)PTFE
|
柔性石墨增强柔性石墨
SFB/260SFP/260PTFE
|
≤425
|
水、蒸汽、油品
|
WC1
|
38CrMoA125Cr2MoV
|
≤450
|
WC6
|
≤540
|
WC9
|
≤570
|
ZGCr5Mo
|
≤540
|
ZG1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
≤200
|
销酸类
|
ZG1Cr18Ni12Mo2Ti
|
1C18Ni12Mo2Ti
|
≤200
|
醋酸类
|
主要外形和连接尺寸
1.6MPa
|
DN
|
L
|
d
|
D1
|
D2
|
b
|
n-Φd
|
H
|
D0
|
凸面法兰RFZ41HZ41YZ41
FZ41NZ40HZ40YZ40WZ40
FZ40N16C16P16R16I
|
15
|
130
|
95
|
65
|
45
|
14
|
4-Φ14
|
170
|
120
|
20
|
150
|
105
|
75
|
55
|
14
|
4-Φ14
|
190
|
140
|
25
|
160
|
115
|
85
|
65
|
14
|
4-Φ14
|
205
|
160
|
32
|
180
|
135
|
100
|
78
|
16
|
4-Φ18
|
270
|
180
|
40
|
200
|
145
|
110
|
85
|
16
|
4-Φ18
|
310
|
200
|
50
|
250
|
160
|
125
|
100
|
16
|
4-Φ18
|
358
|
240
|
65
|
265
|
180
|
145
|
120
|
18
|
4-Φ18
|
373
|
240
|
80
|
280
|
195
|
160
|
135
|
20
|
8-Φ18
|
435
|
280
|
100
|
300
|
215
|
180
|
155
|
20
|
8-Φ18
|
500
|
300
|
125
|
325
|
245
|
210
|
185
|
22
|
8-Φ18
|
614
|
320
|
150
|
350
|
280
|
240
|
210
|
24
|
8-Φ23
|
674
|
320
|
200
|
400
|
335
|
295
|
265
|
26
|
12-Φ23
|
818
|
400
|
250
|
450
|
405
|
355
|
320
|
30
|
12-Φ25
|
969
|
450
|
300
|
500
|
460
|
410
|
375
|
30
|
12-Φ25
|
1145
|
500
|
350
|
550
|
520
|
470
|
435
|
34
|
16-Φ25
|
1280
|
500
|
400
|
600
|
580
|
525
|
485
|
36
|
16-Φ30
|
1452
|
560
|
450
|
650
|
640
|
585
|
545
|
40
|
20-Φ30
|
1541
|
600
|
500
|
700
|
705
|
650
|
608
|
44
|
20-Φ34
|
1676
|
640
|
600
|
800
|
840
|
770
|
718
|
48
|
20-Φ41
|
1874
|
720
|
700
|
900
|
910
|
840
|
788
|
50
|
24-Φ41
|
2083
|
800
|
800
|
1000
|
1020
|
950
|
898
|
52
|
24-Φ41
|
2400
|
950
|
900
|
1100
|
1120
|
1050
|
998
|
54
|
28-Φ41
|
2950
|
1000
|
1000
|
1200
|
1255
|
1170
|
1110
|
56
|
28-Φ48
|
3245
|
1000
|
主要外形和连接尺寸
2.5MPa
|
DN
|
L
|
D
|
D1
|
D2
|
b
|
n-Φd
|
H
|
DO
|
凸面法兰RFZ41HZ41YZ41
FZ41NZ40HZ40YZ40WZ40
FZ40N25C25P25R25I
|
15
|
130
|
95
|
65
|
45
|
16
|
4-Φ14
|
172
|
120
|
20
|
150
|
105
|
75
|
55
|
16
|
4-Φ14
|
191
|
140
|
25
|
160
|
115
|
85
|
65
|
16
|
4-Φ14
|
205
|
160
|
32
|
180
|
135
|
100
|
78
|
18
|
4-Φ18
|
270
|
180
|
40
|
200
|
145
|
110
|
85
|
18
|
4-Φ18
|
300
|
200
|
50
|
250
|
160
|
125
|
100
|
20
|
4-Φ18
|
357
|
240
|
65
|
265
|
180
|
145
|
120
|
22
|
8-Φ18
|
376
|
240
|
80
|
280
|
195
|
160
|
135
|
22
|
8-Φ18
|
434
|
280
|
100
|
300
|
230
|
190
|
160
|
24
|
8-Φ23
|
502
|
300
|
125
|
325
|
270
|
220
|
188
|
28
|
8-Φ25
|
613
|
320
|
150
|
350
|
300
|
250
|
218
|
30
|
8-Φ25
|
675
|
320
|
200
|
400
|
360
|
310
|
278
|
34
|
12-Φ25
|
819
|
400
|
250
|
450
|
425
|
370
|
332
|
36
|
12-Φ30
|
968
|
450
|
300
|
500
|
485
|
430
|
390
|
40
|
16-Φ30
|
1144
|
500
|
350
|
550
|
550
|
490
|
448
|
44
|
16-Φ34
|
1280
|
500
|
400
|
600
|
610
|
550
|
505
|
48
|
16-Φ34
|
1451
|
560
|
450
|
650
|
660
|
600
|
555
|
50
|
20-Φ34
|
1542
|
600
|
500
|
700
|
730
|
660
|
510
|
52
|
20-Φ41
|
1678
|
640
|
600
|
800
|
840
|
770
|
718
|
56
|
20-Φ41
|
1875
|
720
|
700
|
900
|
955
|
875
|
815
|
60
|
24-Φ28
|
2082
|
800
|
800
|
1000
|
1070
|
990
|
930
|
64
|
24-Φ28
|
2403
|
950
|
900
|
1100
|
1180
|
1090
|
1025
|
66
|
28-Φ54
|
2952
|
1000
|
1000
|
1200
|
1305
|
1210
|
1140
|
68
|
28-Φ58
|
3244
|
1000
|
国标法兰闸阀 PN4.0MPa~6.4 MPa主要外形和连接尺寸
4.0MPa
|
DN
|
L
|
D
|
D1
|
D2
|
D6
|
b
|
n-Φd
|
H
|
D0
|
凹凸法兰MFMZ41HZ41
YZ41WZ41FZ40HZ40
YZ40WZ40F4040P40R40I
|
15
|
130
|
95
|
65
|
45
|
40
|
16
|
4-Φ14
|
134
|
120
|
20
|
150
|
105
|
75
|
55
|
51
|
16
|
4-Φ14
|
188
|
140
|
25
|
160
|
115
|
85
|
64
|
58
|
16
|
4-Φ14
|
206
|
140
|
32
|
180
|
135
|
100
|
78
|
66
|
18
|
4-Φ18
|
272
|
180
|
40
|
200
|
145
|
110
|
85
|
76
|
18
|
4-Φ18
|
322
|
180
|
50
|
250
|
160
|
125
|
100
|
88
|
20
|
4-Φ18
|
370
|
240
|
65
|
280
|
180
|
145
|
120
|
110
|
22
|
8-Φ18
|
394
|
280
|
80
|
310
|
195
|
160
|
135
|
121
|
22
|
8-Φ18
|
455
|
300
|
100
|
350
|
230
|
190
|
160
|
150
|
24
|
8-Φ23
|
550
|
320
|
125
|
400
|
270
|
220
|
188
|
176
|
28
|
8-Φ25
|
636
|
350
|
150
|
450
|
300
|
250
|
218
|
204
|
30
|
8-Φ25
|
706
|
400
|
200
|
550
|
375
|
320
|
282
|
260
|
38
|
12-Φ30
|
859
|
450
|
250
|
650
|
445
|
385
|
345
|
313
|
42
|
12-Φ34
|
1016
|
560
|
300
|
750
|
510
|
450
|
408
|
364
|
46
|
16-Φ34
|
1200
|
640
|
350
|
850
|
570
|
510
|
465
|
422
|
52
|
16-Φ34
|
1340
|
640
|
400
|
950
|
655
|
585
|
535
|
474
|
58
|
16-Φ41
|
1495
|
720
|
450
|
1050
|
680
|
610
|
560
|
524
|
60
|
20-Φ41
|
1581
|
800
|
500
|
1150
|
755
|
670
|
612
|
576
|
62
|
20-Φ48
|
1790
|
950
|
600
|
1350
|
890
|
695
|
730
|
678
|
62
|
20-Φ54
|
2035
|
950
|
6.4MPa
|
15
|
170
|
105
|
75
|
55
|
40
|
18
|
4-Φ14
|
142
|
160
|
凹凸法兰MFMZ41HZ41
YZ41WZ40HZ40YZ40W6464P64R64I
|
20
|
190
|
125
|
90
|
68
|
51
|
20
|
4-Φ18
|
142
|
160
|
25
|
210
|
135
|
100
|
78
|
58
|
22
|
4-Φ18
|
214
|
200
|
32
|
230
|
150
|
110
|
82
|
66
|
24
|
4-Φ23
|
269
|
200
|
40
|
240
|
165
|
125
|
95
|
76
|
24
|
4-Φ23
|
343
|
240
|
50
|
250
|
175
|
135
|
105
|
88
|
26
|
4-Φ23
|
370
|
240
|
65
|
280
|
200
|
160
|
130
|
110
|
28
|
8-Φ23
|
396
|
280
|
80
|
310
|
210
|
170
|
140
|
121
|
30
|
8-Φ23
|
458
|
300
|
100
|
350
|
250
|
200
|
168
|
150
|
32
|
8-Φ25
|
553
|
300
|
125
|
400
|
295
|
240
|
202
|
176
|
36
|
8-Φ30
|
638
|
350
|
150
|
450
|
340
|
280
|
240
|
204
|
38
|
8-Φ34
|
718
|
400
|
200
|
550
|
405
|
345
|
300
|
260
|
44
|
12-Φ34
|
873
|
450
|
250
|
650
|
470
|
400
|
352
|
313
|
48
|
12-Φ41
|
1050
|
560
|
300
|
750
|
530
|
460
|
412
|
364
|
54
|
16-Φ41
|
1203
|
640
|
350
|
850
|
595
|
525
|
475
|
422
|
60
|
16-Φ41
|
1394
|
720
|
400
|
950
|
670
|
585
|
525
|
474
|
66
|
16-Φ48
|
1645
|
800
|
500
|
1150
|
800
|
705
|
640
|
576
|
70
|
20-Φ54
|
2285
|
950
|
600
|
1350
|
930
|
820
|
750
|
678
|
70
|
20-Φ58
|
2610
|
950
|
国标法兰闸阀 PN10.0MPa~16.0MPa主要外形和连接尺寸
10.0MPa
|
DN
|
L
|
D
|
D1
|
D2
|
D6
|
b
|
b-Φd
|
H
|
D0
|
凹凸法兰 MFM Z41H Z41Y
Z41W Z40H Z40Y Z40W 100
100P 100R100I
|
15
|
170
|
105
|
75
|
55
|
40
|
20
|
4-Φ14
|
175
|
160
|
20
|
190
|
125
|
90
|
68
|
51
|
22
|
4-Φ18
|
180
|
160
|
25
|
210
|
135
|
100
|
78
|
58
|
24
|
4-Φ18
|
310
|
180
|
32
|
230
|
150
|
110
|
82
|
66
|
24
|
4-Φ23
|
320
|
200
|
40
|
240
|
165
|
125
|
95
|
76
|
26
|
4-Φ23
|
360
|
200
|
50
|
250
|
195
|
145
|
112
|
88
|
28
|
4-Φ25
|
490
|
240
|
65
|
280
|
220
|
170
|
138
|
110
|
32
|
8-Φ25
|
540
|
240
|
80
|
310
|
230
|
180
|
148
|
121
|
34
|
8-Φ25
|
573
|
280
|
100
|
350
|
265
|
210
|
172
|
150
|
38
|
8-Φ30
|
575
|
320
|
125
|
400
|
310
|
250
|
210
|
176
|
42
|
8-Φ34
|
744
|
360
|
150
|
450
|
350
|
290
|
250
|
204
|
46
|
12-Φ34
|
800
|
400
|
200
|
550
|
430
|
360
|
312
|
260
|
54
|
12-Φ41
|
800
|
500
|
250
|
650
|
500
|
430
|
382
|
313
|
60
|
12-Φ41
|
1050
|
640
|
300
|
750
|
585
|
500
|
422
|
364
|
70
|
16-Φ48
|
1208
|
720
|
350
|
850
|
655
|
560
|
498
|
422
|
76
|
16-Φ54
|
1410
|
720
|
400
|
950
|
715
|
620
|
558
|
474
|
80
|
16-Φ54
|
1655
|
800
|
16.0MPa
|
15
|
170
|
110
|
75
|
52
|
40
|
24
|
4-Φ18
|
230
|
160
|
凹凸法兰 MFM Z41H Z41Y
Z41W Z40H Z40Y Z40W 160
160P 160R160I
|
20
|
190
|
130
|
90
|
62
|
51
|
26
|
4-Φ23
|
260
|
180
|
25
|
210
|
140
|
100
|
72
|
58
|
28
|
4-Φ23
|
280
|
200
|
32
|
230
|
165
|
115
|
85
|
66
|
30
|
4-Φ25
|
312
|
200
|
40
|
240
|
175
|
125
|
92
|
76
|
32
|
4-Φ27
|
350
|
240
|
50
|
300
|
210
|
165
|
132
|
88
|
36
|
8-Φ25
|
512
|
280
|
65
|
340
|
245
|
190
|
152
|
110
|
44
|
8-Φ30
|
560
|
320
|
80
|
390
|
260
|
205
|
168
|
121
|
46
|
8-Φ30
|
585
|
350
|
100
|
450
|
300
|
240
|
200
|
150
|
48
|
8-Φ34
|
630
|
400
|
125
|
525
|
355
|
285
|
238
|
176
|
60
|
8-Φ41
|
723
|
500
|
150
|
600
|
390
|
318
|
270
|
204
|
66
|
12-Φ41
|
820
|
560
|
200
|
750
|
480
|
400
|
345
|
260
|
78
|
12-Φ48
|
990
|
720
|
250
|
850
|
580
|
485
|
425
|
313
|
88
|
12-Φ54
|
1104
|
800
|
300
|
950
|
665
|
570
|
510
|
364
|
100
|
16-Φ54
|
1314
|
800
|