详细介绍:
美标法兰球阀
产品型号:Q41F
产品口径:DN15-250
产品压力:150LB-600LB
产品材质:铸钢、不锈钢等
1.【美标法兰球阀】介绍:
球体不带有固定轴的球阀,称为浮动球阀,又称浮动式球阀。浮动球球阀的阀体内有两个阀座密封圈,在它们之间夹紧一个球体,球体上有通孔,通孔的直径等于管道的内径,称全径球阀;通孔的直径略小于管道的内径,称缩径球阀。球体借助于阀杆可以自由地在阀座密封圈中旋转。在开启时,球孔与管道直径对准,已保证管道工作介质阻力最小。当阀杆转动1/4圈时,球孔垂直于阀门的通道,靠加给两阀座密封圈的预紧力和介质压力将球体紧紧压在出口端的阀座密封圈上,从而保证阀门完全密封。这种球阀属单面强制密封。
2.【美标法兰球阀】适用范围:
浮动球阀适合一般工业使用,并适用于化工,石油,天然气,冶金等行业及含硫化氢介质,杂质多,腐蚀严重的天然气长输管线。
浮动式球阀根据不同的使用要求,以壳体材料为基础分为:普通碳钢系列WCB、A105;不锈钢系列304,316;低温钢系列LCB,LCC;抗硫系列等。
3.【美标法兰球阀】结构特点:
浮动球阀主要特点是球体无支撑轴,球体被两阀座夹持其中呈“浮动"状态,它在管道上主要用于切断、分配和改变介质流动方向。浮动球阀主要特点的阀座密封设计、可靠的倒密封阀封杆、防火静电功能、自动泄压和锁定装置等结构特点。
公称压力(PN)
|
1.6
|
2.5
|
4.0
|
6.4
|
壳体试验压力
|
2.4
|
3.8
|
6.0
|
9.6
|
密封试验(液)
|
1.8
|
2.8
|
4.4
|
7.0
|
密封试验(气)
|
0.5~0.7
|
适用介质
|
C P R
水、油品、蒸气 硝酸类 醋酸类
|
适用温度
|
≤200℃
|
5.【美标法兰球阀】主要零件材料
名称
|
WCB类
|
CF8类
|
CF3类
|
CF8M类
|
CF3M类
|
阀体左体
|
A216-WCB
|
A315-CF8
|
A35-CF3
|
A351-CF8M
|
A351-CF3M
|
球体
|
B2-B8
|
A105-1025
|
A182-F304L
|
A182-F304L
|
A132-F316
|
A182-F316L
|
B8以上
|
A216-WCB
|
A351-CF8M
|
A351-CF3
|
A351-CF8M
|
A351-CF3M
|
阀杆
|
A182-F6a
|
A182-F304
|
A182-F304L
|
A182-F336
|
A182-F316L
|
阀座
|
PTFE/增强PTFE/NYLIN PTFE/Reinforced PTFE/Nyion
|
阀座支承圈
|
A105-1025
|
A182-F304
|
A182-F304L
|
A182-F316
|
A182-F316L
|
弹簧
|
|
3yc-7/17-49H
|
O形圈
|
NBR
|
氟橡胶
|
螺柱
|
A193-B7
|
A193-B8
|
螺母
|
A194-2H
|
A194-8
|
公称通径NPS
|
单位
|
L
|
D
|
T
|
G
|
C
|
n-φd
|
W
|
H
|
in
|
mm
|
1/2"
|
15
|
mm
|
108
|
89
|
12
|
35
|
60.5
|
4-15
|
115
|
72
|
in
|
4.25
|
3.5
|
0.47
|
1.38
|
2.38
|
4-0.59
|
4.53
|
28.3
|
3/4"
|
20
|
mm
|
117
|
98
|
12
|
43
|
70
|
4-15
|
115
|
76
|
in
|
4.61
|
3.86
|
0.47
|
1.69
|
2.76
|
4-0.59
|
4.53
|
29.9
|
1"
|
25
|
mm
|
127
|
108
|
12
|
51
|
79.5
|
4-15
|
150
|
92
|
in
|
5
|
4.25
|
0.47
|
2
|
3.13
|
4-0.59
|
5.9
|
3.62
|
11/2"
|
40
|
mm
|
165
|
127
|
14.3
|
73
|
98.5
|
4-16
|
200
|
123
|
in
|
6.5
|
5
|
0.56
|
2.88
|
3.88
|
4-0.62
|
7.87
|
4.84
|
2"
|
50
|
mm
|
178
|
152
|
15.9
|
92
|
120.5
|
4-19
|
200
|
132
|
in
|
7
|
6.00
|
0.625
|
3.62
|
4.75
|
4-0.75
|
7.87
|
5.20
|
21/2"
|
65
|
mm
|
190
|
178
|
17.5
|
105
|
139.5
|
4-19
|
320
|
164
|
in
|
7.5
|
7
|
0.69
|
4.12
|
5.5.
|
4-0.75
|
12.6
|
6.45
|
3"
|
80
|
mm
|
203
|
190
|
19.1
|
127
|
152.4
|
4-19
|
320
|
173
|
in
|
8
|
7.50
|
0.75
|
5
|
6
|
4-0.75
|
12.6
|
6.8
|
4"
|
100
|
mm
|
229
|
229
|
23.9
|
157
|
190.5
|
8-19
|
450
|
210
|
in
|
9
|
9
|
0.94
|
6.19
|
7.5
|
8-0.75
|
17.72
|
8.26
|
6"
|
150
|
mm
|
394
|
279
|
26
|
216
|
241.5
|
8-22
|
8000
|
288
|
in
|
15.5
|
10.98
|
1.02
|
8.5
|
9.50
|
8-0.88
|
31.5
|
1.34
|
8"
|
200
|
mm
|
457
|
343
|
29
|
270
|
298.5
|
8-22
|
1120
|
374
|
in
|
18.00
|
13.50
|
1.12
|
10.62
|
11.75
|
8-0.88
|
44.10
|
14.72
|
10"
|
250
|
mm
|
533
|
406
|
31
|
324
|
362
|
12-25
|
1420
|
366
|
in
|
20.98
|
16
|
1.2
|
12.75
|
14.75
|
12-1
|
55.12
|
14.40
|
12"
|
300
|
mm
|
610
|
483
|
32
|
381
|
432
|
12-25
|
1420
|
412
|
in
|
24
|
19
|
1.26
|
15
|
17
|
12-1
|
55.12
|
16.22
|
公称通径NPS
|
单位
|
L
|
D
|
T
|
G
|
C
|
n-φd
|
W
|
H
|
in
|
mm
|
1/2"
|
15
|
mm
|
140
|
95
|
15
|
35
|
66.5
|
4-15
|
115
|
72
|
in
|
5.51
|
3.74
|
0.59
|
1.38
|
2.62
|
4-0.59
|
4.53
|
28.3
|
3/4"
|
20
|
mm
|
152
|
117
|
16
|
43
|
82.5
|
4-19
|
115
|
76
|
in
|
5.98
|
4.61
|
0.62
|
1.69
|
3.25
|
4-0.75
|
4.53
|
29.9
|
1"
|
25
|
mm
|
165
|
124
|
18
|
51
|
89
|
4-19
|
150
|
92
|
in
|
6.5
|
4.9
|
0.71
|
2
|
3.5
|
4-0.75
|
5.9
|
3.62
|
11/2"
|
40
|
mm
|
190
|
156
|
20.7
|
73
|
114.5
|
4-22
|
200
|
123
|
in
|
7.5
|
6.12
|
0.81
|
2.88
|
4.51
|
4-0.88
|
7.87
|
4.84
|
2"
|
50
|
mm
|
216
|
165
|
22.3
|
92
|
127
|
8-19
|
200
|
132
|
in
|
8.5
|
6.5
|
0.88
|
3.62
|
5
|
8-0.75
|
7.87
|
5.20
|
21/2"
|
65
|
mm
|
241
|
190
|
25.4
|
105
|
149
|
8-22
|
320
|
164
|
in
|
9.5
|
7.5
|
1
|
4.12
|
5.87
|
8-0.88
|
12.6
|
6.45
|
3"
|
80
|
mm
|
283
|
210
|
28.5
|
127
|
168.5
|
8-22
|
320
|
173
|
in
|
11.25
|
8.25
|
1012
|
5
|
6.62
|
8-0.88
|
12.6
|
6.8
|
4"
|
100
|
mm
|
305
|
254
|
31.8
|
157
|
200
|
8-22
|
450
|
210
|
in
|
12
|
10
|
1.25
|
6.19
|
7.88
|
8-0.88
|
17.72
|
8.26
|
6"
|
150
|
mm
|
403
|
318
|
36.6
|
216
|
270
|
12-22
|
1120
|
336
|
in
|
15.875
|
12.5
|
1.44
|
8.5
|
10.62
|
12-0.88
|
44.10
|
13.23
|
8"
|
200
|
mm
|
502
|
381
|
42
|
270
|
330
|
12-25
|
1420
|
385
|
in
|
19.76
|
15
|
16.5
|
10.62
|
12.99
|
12-1
|
55.12
|
15.16
|
10"
|
250
|
mm
|
568
|
444
|
48
|
324
|
387.5
|
16-29
|
1420
|
370
|
in
|
22.36
|
17.50
|
1.89
|
12.75
|
15.25
|
16-1.12
|
55.12
|
14.56
|
|
|