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适用标准
钢制止回阀，API602
温度和压力，ASME B16.34
结构长度，ASME B 16.10
端法兰， ASME B 16.5
对焊端，ASME B 16.25
承插焊，ASME B 16.11
螺纹端，ASME B1.20.1
试验标准，API 598
设计说明
压力自密封阀盖
升降或旋启式阀瓣
法兰、承插焊或对焊端
水平或垂直安装
标准材料规范
| No. |
Part Name |
ASTM Material |
| Carbon Steel |
1.25Cr-0.5Mo |
2.25Cr-1Mo |
304 Type |
316 Type |
304L Type |
316L Type |
20 Alloy |
| 1 |
Body |
A105 |
A182 F11 |
A182 F22 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
20-Alloy |
| 2 |
Bonnet |
A105 |
A182 F11 |
A182 F22 |
A182F304 |
A182F316 |
A182 F304L |
A182F316L |
20-Alloy |
| 3 |
Disc |
A182 F6a |
A182 F11+HF |
A182 F22+HF |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
20-Alloy |
| 4 |
Seat Gasket |
A182F6a |
A182 F11 |
A182 F22 |
A182F304 |
A182F316 |
A182 F304L |
A182F316L |
20-Alloy |
| 5 |
Bonnet Bolt |
A182 F6a |
A182 F11+HF |
A182 F22+HF |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
20-Alloy |
| 6 |
Cover |
304+
Graphit |
304+
Graphit |
304+
Graphit |
304+
Graphit |
316+
Graphit |
304L+
Graphit |
316L+
Graphit |
316+
Graphit |
| 7 |
Nut |
A193 B7 |
A193 B7 |
A193 B16 |
A193 B8 |
A193 B8 |
A193 B8 |
A193 B8 |
A193 B8 |
| 8 |
Name plate |
A105 |
A182 F11 |
A182 F22 |
A182 F304 |
A182 F316 |
A182 F304L |
A182 F316L |
20-Alloy |
主要外形尺寸和质量 Class 800
粗体阀盖，
设计按照 BS 5352
| R.P |
|
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
21/2 |
| F.P |
1/4 |
3/s |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
| L |
98 |
98 |
98 |
111 |
140 |
140 |
155 |
170 |
| H |
70 |
100 |
70 |
100 |
110 |
120 |
120 |
150 |
| d |
7 |
180 |
13 |
17.5 |
23 |
30 |
35 |
46 |
| Weight (kg) |
2.2 |
9 |
2.1 |
4.2 |
9 |
8.9 |
10 |
18.6 |
主要外形尺寸和质量 Class 800
焊接阀盖，
设计按照 BS 5352
| R.P |
|
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
21/2 |
| F.P |
1/4 |
3/s |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
|
79 |
79 |
92 |
100 |
140 |
140 |
155 |
170 |
| H |
65 |
65 |
65 |
95 |
105 |
110 |
110 |
140 |
| d |
7 |
10 |
13 |
17.5 |
23 |
30 |
35 |
46 |
| Weight (kg) |
1.8 |
1.8 |
2.0 |
3.5 |
8.0 |
8.0 |
12 |
16 |
主要外形尺寸和质量 Class 900~1500
粗体阀盖，
设计按照 BS 5352
| F.P |
3/8 |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
| L |
98 |
111 |
111 |
140 |
140 |
155 |
170 |
| H |
70 |
70 |
100 |
110 |
110 |
120 |
150 |
| d |
9 |
12 |
15 |
20 |
28 |
32 |
40 |
| Weight (kg) |
2.1 |
4.2 |
9 |
8.9 |
10 |
18.6 |
20 | 
主要外形尺寸和质量 Class 900~1500
粗体阀盖，
设计按照 BS 5352
| F.P |
3/8 |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
| L |
92 |
100 |
100 |
140 |
140 |
155 |
170 |
| H |
65 |
65 |
65 |
105 |
110 |
110 |
140 |
| d |
9 |
12 |
15 |
20 |
32 |
28 |
40 |
| Weight (kg) |
2.0 |
3.5 |
3.5 |
8.0 |
12 |
12 |
18 |
主要外形尺寸和质量 Class 2500
焊接阀盖，
设计按照 BS 5352
| F.P |
3/8 |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
| L |
186 |
186 |
186 |
183 |
232 |
232 |
310 |
| H |
115 |
115 |
120 |
150 |
150 |
150 |
16 |
| d |
9 |
11 |
14 |
19 |
25 |
28 |
35 |
| Weight (kg) |
11.2 |
1.5 |
10.6 |
10.8 |
25 |
22 |
39 |
主要外形尺寸和质量 Class2500
压力自密封或螺纹连接阀盖，
设计按照ASME B 16.34
| F.P |
3/8 |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
| L |
186 |
186 |
186 |
186 |
232 |
232 |
310 |
| H |
233 |
233 |
233 |
233 |
256 |
256 |
330 |
| d |
9 |
11 |
14 |
19 |
25 |
28 |
35 |
| Weight (kg) |
11.2 |
11.5 |
10.6 |
10.8 |
25 |
22 |
39 |
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