用途：
本阻火器是引用国外先进技术，利用不同材质的不同熔点研制而成，目前已经许多冶金设计院和大型冶金企业使用，阻火效果可靠。本阻火器适用于管道通径DN15-450MM,工作压力不大于3MPa的氧气管道阻火之用。
分类：
本阻火器分阀门前（EP）,阀门后（FPV）两种，阻火器材质一般会纯钢（T）
FPV系列
|
型号 |
公称压力 |
2.9MPa(30KGf/cm²) |
||||||
|
公称直径 |
主要尺寸（mm） |
|||||||
|
DN |
D1 |
d |
D2 |
S1 |
S2 |
L0 |
L |
|
|
FPV-1.5T I |
15 |
18 |
12 |
18 |
3 |
3 |
49 |
1500 |
|
FPV-1.5T II |
15 |
22 |
16 |
22 |
3 |
3 |
49 |
1500 |
|
FPV-2.0T |
20 |
25 |
18 |
25 |
3 |
3 |
49 |
1500 |
|
FPV-2.5T I |
20 |
32 |
24 |
32 |
3 |
3 |
49 |
1500 |
|
FPV-2.5II |
25 |
34 |
28 |
34 |
3 |
3 |
49 |
1500 |
|
FPV-12T |
25 |
38 |
31 |
38 |
3.5 |
3.5 |
49 |
1500 |
|
FPV-9T I |
32 |
42 |
35 |
42 |
3.5 |
3.5 |
49 |
1500 |
|
FPV-4.0T I |
32 |
45 |
38 |
45 |
3.5 |
3.5 |
49 |
1500 |
|
FPV-4.0T II |
40 |
48 |
41 |
48 |
3.5 |
3.5 |
49 |
1500 |
|
FPV-5.0T I |
40 |
60 |
52 |
60 |
4 |
4 |
49 |
1500 |
|
FPV-5.0T II |
50 |
57 |
48 |
57 |
4.5 |
4.5 |
49 |
1500 |
|
FPV-6.5T |
65 |
76 |
68 |
76 |
4 |
4 |
49 |
1500 |
|
FPV-10T |
80 |
90 |
80 |
90 |
4.5 |
4.5 |
49 |
1500 |
|
FPV-10T I |
100 |
108 |
98 |
108 |
5 |
5 |
99 |
1500 |
|
FPV-10T II |
100 |
114 |
104 |
114 |
5 |
5 |
99 |
1500 |
|
FPV-12.5T |
125 |
133 |
123 |
133 |
5 |
5 |
99 |
1500 |
|
FPV-15T I |
150 |
169 |
147 |
169 |
6 |
6 |
99 |
1500 |
|
FPV-15T II |
150 |
168 |
166 |
168 |
6 |
6 |
99 |
1500 |
|
FPV-20T |
200 |
226 |
206 |
219 |
10 |
6.5 |
149 |
1500 |
|
FPV-25T |
250 |
289 |
269 |
273 |
12 |
7 |
149 |
1500 |
|
FPV-30T |
300 |
387 |
309 |
325 |
15 |
8 |
149 |
1500 |
|
FPV-35T |
350 |
391 |
359 |
377 |
16 |
9 |
149 |
1500 |
|
FPV-40T |
400 |
444 |
408 |
428 |
18 |
9 |
149 |
1500 |
|
FPV-45T |
400 |
498 |
457 |
478 |
20 |
10 |
149 |
1500 |
