優(yōu)點(diǎn):
1、流體阻力小 , 密封面受介質(zhì)的忡刷和侵蝕小。 2、開(kāi)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(jiǎn)單 , 結(jié)構(gòu)長(zhǎng)度短,制造工藝性好,適用范圍廣。
缺點(diǎn):
1、密封面之間易引起沖蝕和擦傷,維修比較困難。 2、外形尺寸較大,開(kāi)啟需要一定的空間,開(kāi)閉時(shí)間長(zhǎng)。 3、結(jié)構(gòu)較復(fù)雜。 閘闊的種類 ,按密封面配置可分為楔式閘板式閘閥和平行閘板式閘閥 , 楔式閘板式閘閥又可 分為 :單閘極式、雙閘板式和彈性閘板式;平行閘板式閘閥可分為單閘板式和雙閘板式。按閥桿的螺紋位置劃分,可分為明桿閘閥和暗桿閘閥兩種。
設(shè)計(jì)與制造 Design and Manufacture 結(jié)構(gòu)長(zhǎng)度 Face to face/ End to end 法蘭尺寸 FlangeDimension 對(duì)焊連接尺寸 Butt welding dimension 壓力-溫度Pressure Temperature Lating 試驗(yàn)-檢驗(yàn)Inspection and Test API 600 ANSI B16.10 ANSI B16.5 ANSI B16.25 ANSI B16.34 API 598 API 6D API 6D ANSI B16.5 ANSI B16.25 ANSI B16.34 API 6D
設(shè)計(jì)與制造 Design and Manufacture | 結(jié)構(gòu)長(zhǎng)度 Face to face/ End to end | 法蘭尺寸 FlangeDimension | 對(duì)焊連接尺寸 Butt welding dimension | 壓力-溫度Pressure Temperature Lating | 試驗(yàn)-檢驗(yàn)Inspection and Test |
API 600 | ANSI B16.10 | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 598 |
API 6D | API 6D | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 6D |
設(shè)計(jì)與制造 Design and Manufacture | 結(jié)構(gòu)長(zhǎng)度 Face to face/ End to end | 法蘭尺寸 FlangeDimension | 對(duì)焊連接尺寸 Butt welding dimension | 壓力-溫度Pressure Temperature Lating | 試驗(yàn)-檢驗(yàn)Inspection and Test |
API 600 | ANSI B16.10 | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 598 |
API 6D | API 6D | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 6D |
設(shè)計(jì)與制造 Design and Manufacture | 結(jié)構(gòu)長(zhǎng)度 Face to face/ End to end | 法蘭尺寸 FlangeDimension | 對(duì)焊連接尺寸 Butt welding dimension | 壓力-溫度Pressure Temperature Lating | 試驗(yàn)-檢驗(yàn)Inspection and Test |
API 600 | ANSI B16.10 | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 598 |
API 6D | API 6D | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 6D |
ANSI美標(biāo)船用青銅閘閥 試驗(yàn)壓力Test pressure
類別Type
|
Mpa
|
PSI
|
強(qiáng)度試驗(yàn)Shell test
|
3.0
|
450
|
高壓密封試驗(yàn)(水)
Sealing test(WATER) |
2.2
|
314
|
低壓密封試驗(yàn)
Sealing test(AIR) |
5-7巴Bar
|
材質(zhì)名稱
Name of material |
適用溫度
Working temeorature |
適用介質(zhì)
Avialable media |
CF8
|
≤50℃
|
|
OCr18Ni9
|
|
|
CF8N
|
NITRIC ACID
|
|
OCr18NiMo2ti
|
硝酸類
|
|
CF3
|
NITRIC ACID
|
|
OOCr18Ni10
|
硝酸類
|
|
CF3M
|
NITRIC ACID
|
|
OOCr17Ni14Mo2
|
硝酸類
|
公稱通徑NPS
Norminal diameter |
單位 Unit
|
L
|
D
|
T
|
G
|
C
|
n-Ф
|
W
|
H
|
|
in
|
mm
|
|||||||||
1/2〞
|
15
|
mm
|
108
|
89
|
12
|
35
|
60.5
|
4-15
|
90
|
188
|
in
|
4.25
|
3.5
|
0.47
|
1.38
|
2.38
|
4-0.59
|
3.54
|
7.40
|
||
3/4〞
|
20
|
mm
|
117
|
98
|
12
|
43
|
70
|
4-15
|
90
|
202
|
in
|
4.61
|
3.86
|
0.47
|
1.69
|
2.76
|
4-0.59
|
3.54
|
7.95
|
||
1〞
|
25
|
mm
|
127
|
108
|
12
|
51
|
79.5
|
4-15
|
100
|
225
|
in
|
5
|
4.25
|
0.47
|
2
|
3.13
|
4-0.59
|
4
|
8.86
|
||
11/2〞
|
40
|
mm
|
165
|
127
|
14.3
|
73
|
98.5
|
4-16
|
200
|
362
|
in
|
6.5
|
5
|
0.56
|
2.88
|
3.88
|
4-0.62
|
8
|
14.25
|
||
2〞
|
50
|
mm
|
178
|
152
|
15.9
|
92
|
120.5
|
4-19
|
200
|
409
|
in
|
7
|
6.00
|
0.625
|
3.62
|
4.75
|
4-0.75
|
8
|
16.1
|
||
21/2〞
|
65
|
mm
|
190
|
178
|
17.5
|
105
|
139.5
|
4-19
|
250
|
500
|
in
|
7.5
|
7
|
0.69
|
4.12
|
5.50
|
4-0.75
|
10
|
19.68
|
||
3〞
|
80
|
mm
|
203
|
190
|
19.1
|
127
|
152.4
|
4-19
|
250
|
570
|
in
|
8
|
7.50
|
0.75
|
5
|
6
|
4-0.75
|
10
|
22.58
|
||
4〞
|
100
|
mm
|
229
|
229
|
23.9
|
157
|
190.5
|
8-19
|
250
|
590
|
in
|
9
|
9
|
0.94
|
6.19
|
7.5
|
8-0.75
|
10
|
23.6
|
||
6〞
|
150
|
mm
|
267
|
279
|
25.4
|
216
|
241.5
|
8-22
|
300
|
630
|
in
|
10.50
|
11
|
1
|
8.5
|
9.50
|
8-0.88
|
12
|
24.8
|
||
8〞
|
200
|
mm
|
292
|
343
|
28.5
|
270
|
298.5
|
8-22
|
350
|
960
|
in
|
11.5
|
13.50
|
1.12
|
10.62
|
11.75
|
8-0.88
|
13.88
|
37.8
|
||
10〞
|
250
|
mm
|
330
|
406
|
30.2
|
342
|
362
|
12-25
|
400
|
1158
|
in
|
13
|
16
|
1198
|
12.75
|
14.75
|
12-1
|
15.7
|
45.6
|
||
12〞
|
300
|
mm
|
356
|
483
|
31.8
|
381
|
432
|
12-25
|
450
|
1378
|
in
|
14
|
19
|
1.25
|
15
|
17
|
12-1
|
17.7
|
54.3
|
||
14〞
|
350
|
mm
|
381
|
533
|
35
|
413
|
476
|
12-29
|
500
|
1543
|
in
|
15
|
21
|
1.38
|
16.25
|
18.75
|
12-1.2
|
79.7
|
60.75
|
||
16〞
|
400
|
mm
|
406
|
597
|
36.6
|
470
|
539.5
|
16-29
|
600
|
1738
|
in
|
16
|
23.5
|
1.44
|
18.5
|
21.25
|
16-1.12
|
23.6
|
68.4
|
類別Type
|
Mpa
|
PSI
|
強(qiáng)度試驗(yàn)Shell test
|
7.7
|
1125
|
高壓密封試驗(yàn)(水)
Sealing test(WATER) |
5.8
|
815
|
低壓密封試驗(yàn)
Sealing test(AIR) |
5-7巴Bar
|
類別Type
|
Mpa
|
PSI
|
強(qiáng)度試驗(yàn)Shell test
|
15.4
|
2225
|
高壓密封試驗(yàn)(水)
Sealing test(WATER) |
5.8
|
1628
|
低壓密封試驗(yàn)
Sealing test(AIR) |
5-7巴Bar
|
公稱通徑NPS
Norminal diameter |
單位
Unit |
L
|
D
|
T
|
G
|
C
|
n-Ф
|
W
|
H
|
|
in
|
mm
|
|||||||||
1/2〞
|
15
|
mm-
|
140
|
95
|
15
|
35
|
66.5
|
4-15
|
100
|
201
|
in
|
5.51
|
3.74
|
0.59
|
1.38
|
2.62
|
4-0.59
|
4
|
7.91
|
||
3/4〞
|
20
|
mm
|
152
|
117
|
16
|
43
|
82.5
|
4-19
|
100
|
212
|
in
|
5.98
|
4.61
|
0.62
|
1.69
|
3.25
|
4-0.75
|
4
|
8.35
|
||
1〞
|
25
|
mm
|
165
|
124
|
18
|
51
|
89
|
4-19
|
140
|
237
|
in
|
6.5
|
4.9
|
0.71
|
2
|
3.5
|
4-0.75
|
5.51
|
9.33
|
||
11/2〞
|
40
|
mm
|
190
|
156
|
20.7
|
73
|
114.5
|
4-22
|
200
|
407
|
in
|
7.5
|
6.12
|
0.81
|
2.88
|
4.51
|
4-0.88
|
8
|
16.02
|
||
2〞
|
50
|
mm
|
216
|
165
|
22.3
|
92
|
127
|
8-19
|
200
|
424
|
in
|
8.5
|
6.5
|
0.88
|
3.62
|
5
|
8-0.75
|
8
|
16.7
|
||
21/2〞
|
65
|
mm
|
241
|
190
|
25.4
|
105
|
149
|
8-22
|
250
|
265
|
in
|
9.5
|
7.5
|
1
|
4.12
|
5.87
|
8-0.88
|
10
|
18.31
|
||
3〞
|
80
|
mm
|
283
|
210
|
28.5
|
127
|
168.5
|
8-22
|
250
|
535
|
in
|
11.25
|
8.25
|
1012
|
5
|
6.62
|
8-0.88
|
10
|
21
|
||
4〞
|
100
|
mm
|
305
|
254
|
31.8
|
157
|
200
|
8-22
|
250
|
615
|
in
|
12
|
10
|
1.25
|
6.19
|
7.88
|
8-0.88
|
10
|
24.2
|
||
6〞
|
150
|
mm
|
4.3
|
318
|
36.6
|
216
|
270
|
12-22
|
350
|
795
|
in
|
15.875
|
12.5
|
1.44
|
8.5
|
10.62
|
12-0.88
|
140
|
31.3
|
||
8〞
|
200
|
mm
|
419
|
381
|
41.3
|
270
|
330
|
12-25
|
400
|
1012
|
in
|
16.5
|
15
|
1.62
|
10.62
|
12.99
|
12-1
|
15.7
|
39.9
|
||
10〞
|
250
|
mm
|
457
|
444
|
47.7
|
342
|
387.5
|
16-29
|
450
|
1231
|
in
|
18
|
17.50
|
1.88
|
12.75
|
15.25
|
16-1.12
|
17.7
|
48.5
|
公稱通徑NPS
Norminal diameter |
單位
Unit |
L
|
D
|
T
|
G
|
C
|
n-Ф
|
W
|
H
|
|
in
|
mm
|
|||||||||
2〞
|
15
|
mm
|
292
|
165
|
25.4
|
92
|
127
|
8-19
|
250
|
458
|
in
|
11.5
|
6.5
|
1
|
3.62
|
5
|
8-0.75
|
10
|
18
|
||
21/2〞
|
20
|
mm
|
330
|
190
|
28.6
|
105
|
149
|
8-22
|
250
|
485
|
in
|
13
|
7.48
|
1.13
|
4.12
|
5.87
|
8-0.88
|
10
|
10.09
|
||
3〞
|
25
|
mm
|
356
|
210
|
31.8
|
17
|
168
|
8-22
|
250
|
570
|
in
|
14
|
8.25
|
1.25
|
5
|
6.62
|
8-0.88
|
10
|
22.58
|
||
4〞
|
40
|
mm
|
432
|
273
|
31.8
|
157
|
216
|
8-25
|
350
|
690
|
in
|
17
|
10.75
|
1.5
|
6.19
|
8.5
|
8-1
|
14
|
27.2
|
||
6〞
|
50
|
mm
|
559
|
356
|
4.7
|
216
|
292
|
12-29
|
450
|
910
|
in
|
22
|
14
|
1.88
|
8.5
|
11.50
|
12-1.12
|
18
|
35.8
|
||
8〞
|
65
|
mm
|
660
|
419
|
55.6
|
270
|
349
|
12-32
|
500
|
1064
|
in
|
26
|
16.5
|
2.19
|
10.62
|
13.75
|
12-1.25
|
17.7
|
41.9
|