閘閥又稱閘板閥或閘門閥,應(yīng)用最廣泛的一種閥門。它是通過閘板的升降來控制閥門的啟閉,閘板垂直于流體方向,改變閘板與閥座間相對位置即可改變通道大小。
閘閥具有以下優(yōu)點:
1、流體阻力小,密封面受介質(zhì)的忡刷和侵蝕小。
2、開閉較省力。
3、介質(zhì)流向不受限制,不擾流、不降低壓力。
4、形體簡單,結(jié)構(gòu)長度短,制造工藝性好,適用范圍廣。
主要零件材質(zhì)及參數(shù) Main Parts materials and Parameters
產(chǎn)品材料
|
304系列
|
304L系列
|
316系列
|
316L系列
|
321系列
|
|
主要零件材料 |
閥體、閥蓋
Body、Bonnet |
CF8
|
CF3
|
CF8M
|
CF3M
|
OCr18Ni10Ti
|
支架、閘板
Support、Disc |
CF8
|
CF3
|
CF8M
|
CF3M
|
OCr18Ni10Ti
|
|
閥桿 Stem
|
304
|
304L
|
316
|
316L
|
321
|
|
螺栓 Bolt
|
A193-B8
|
A193-B8
|
A193-B8M
|
A193-B8M
|
A193-B8M
|
|
螺母 Nut
|
A194-8M
|
A194-8M
|
A194-8M
|
A194-8M
|
A194-8M
|
|
填料、墊圈
Stuffing、Washer |
PTEF、PTEF+304
|
PTEF、PTEF+304L
|
PTEF、PTEF+316
|
PTEF、PTEF+316L
|
PTEF、PTEF+321
|
|
適用工況 |
適合介質(zhì)
Applicable medium |
硝酸腐蝕性介質(zhì)
Nitric acid etc corrosive medium |
醋酸等腐蝕性介質(zhì)
Acetic acid etc corrosive medium |
|||
適用溫度
Applicable temperature |
-28~300℃
|
|||||
應(yīng)用規(guī)范 |
法蘭尺寸按
Flange dimension follows |
JB79-59、SH3406、GB9113、HG20592-97
|
||||
設(shè)計制造按Desing manutacture follows
|
GB12234
|
|||||
結(jié)構(gòu)長度按
Face to Face follows |
GB12221
|
|||||
檢驗試驗按
Teat and inspection follows |
BG/T13927-89 JB/T9092
|
|||||
1.6~16.0MPa
|
PN1.6MPa主要連接尺寸及重量 Main connection dimensions and weights
尺寸(mm)
Dimensions |
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
450
|
500
|
600
|
L
|
mm
|
130
|
150
|
160
|
180
|
200
|
250
|
265
|
280
|
300
|
325
|
350
|
400
|
450
|
500
|
550
|
600
|
650
|
700
|
800
|
H
|
mm
|
175
|
180
|
210
|
210
|
350
|
358
|
373
|
435
|
500
|
614
|
674
|
818
|
1225
|
1415
|
1630
|
1780
|
2050
|
2181
|
2599
|
D
|
mm
|
120
|
140
|
160
|
180
|
200
|
240
|
240
|
280
|
300
|
320
|
350
|
400
|
450
|
500
|
550
|
600
|
650
|
700
|
750
|
重量
wight |
kg
|
4
|
5
|
6
|
7
|
18
|
29
|
93
|
46
|
63
|
108
|
134
|
192
|
228
|
300
|
388
|
566
|
900
|
958
|
1410
|
PN2.5MPa主要連接尺寸及重量 Main connection dimensions and weights
尺寸(mm)
Dimensions |
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
450
|
500
|
600
|
L
|
mm
|
130
|
150
|
160
|
180
|
200
|
250
|
265
|
280
|
300
|
325
|
350
|
400
|
450
|
500
|
550
|
600
|
650
|
700
|
800
|
H
|
mm
|
175
|
180
|
210
|
210
|
350
|
358
|
373
|
435
|
500
|
614
|
674
|
818
|
1225
|
1415
|
1630
|
1780
|
2050
|
2181
|
2599
|
D
|
mm
|
120
|
140
|
160
|
180
|
200
|
240
|
240
|
280
|
300
|
320
|
350
|
400
|
450
|
500
|
550
|
600
|
650
|
700
|
750
|
重量
wight |
kg
|
4
|
5
|
6
|
7
|
18
|
29
|
33
|
46
|
64
|
105
|
142
|
213
|
290
|
324
|
423
|
566
|
900
|
958
|
1410
|
PN4.0MPa主要連接尺寸及重量 Main connection dimensions and weights
尺寸(mm)
Dimensions |
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
L
|
mm
|
130
|
150
|
160
|
180
|
200
|
250
|
280
|
310
|
350
|
400
|
450
|
550
|
650
|
750
|
850
|
950
|
H
|
mm
|
175
|
180
|
210
|
210
|
350
|
358
|
373
|
435
|
500
|
614
|
674
|
818
|
1225
|
1415
|
1630
|
1780
|
D
|
mm
|
120
|
140
|
160
|
180
|
200
|
240
|
280
|
300
|
320
|
350
|
400
|
450
|
500
|
550
|
600
|
650
|
重量
wight |
kg
|
4
|
5
|
6
|
7
|
18
|
29
|
33
|
46
|
64
|
105
|
142
|
213
|
374
|
550
|
890
|
1235
|
PN6.4MPa主要連接尺寸及重量 Main connection dimensions and weights
尺寸(mm)
Dimensions |
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
L
|
mm
|
170
|
190
|
210
|
230
|
240
|
250
|
280
|
310
|
350
|
400
|
450
|
550
|
650
|
750
|
850
|
950
|
H
|
mm
|
185
|
200
|
230
|
280
|
350
|
360
|
373
|
435
|
500
|
600
|
670
|
818
|
970
|
1140
|
1280
|
1450
|
D
|
mm
|
140
|
140
|
160
|
180
|
240
|
240
|
280
|
300
|
300
|
350
|
400
|
450
|
500
|
550
|
600
|
650
|
重量
wight |
kg
|
4
|
5
|
12
|
25
|
32
|
40
|
45
|
61
|
89
|
140
|
206
|
327
|
467
|
590
|
900
|
1190
|
PN10.0MPa主要連接尺寸及重量 Main connection dimensions and weights
尺寸(mm)
Dimensions |
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
L
|
mm
|
170
|
190
|
210
|
230
|
240
|
250
|
280
|
310
|
350
|
400
|
450
|
550
|
650
|
H
|
mm
|
185
|
200
|
230
|
280
|
350
|
360
|
373
|
435
|
500
|
600
|
670
|
818
|
970
|
D
|
mm
|
140
|
140
|
160
|
180
|
240
|
240
|
280
|
300
|
320
|
350
|
400
|
450
|
500
|
重量
wight |
kg
|
8
|
12
|
16
|
20
|
32
|
51
|
70
|
89
|
130
|
223
|
295
|
560
|
640
|
PN16.0MPa主要連接尺寸及重量 Main connection dimensions and weights
尺寸(mm)
Dimensions |
DN
|
15
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
L
|
mm
|
170
|
190
|
210
|
230
|
240
|
300
|
340
|
390
|
450
|
525
|
600
|
750
|
H
|
mm
|
175
|
180
|
210
|
230
|
350
|
359
|
373
|
435
|
500
|
614
|
674
|
818
|
D
|
mm
|
140
|
140
|
160
|
180
|
240
|
280
|
300
|
350
|
400
|
450
|
500
|
550
|
重量
wight |
kg
|
8
|
12
|
16
|
20
|
32
|
73
|
110
|
141
|
185
|
320
|
462
|
710
|