DQ41F低温法兰球阀分为低温浮动球和低温固定球两类,用于截断或接通管路中的低温介质,介质低温度不得低于-196度。
低温球阀 执行标准
DQ41F低温法兰球阀分为低温浮动球和低温固定球两类,用于截断或接通管路中的低温介质,介质低温度不得低于-196度。
低温球阀 执行标准
|
设计与制造 |
结构长度 |
法兰尺寸 |
压力-温度 |
试验-检验 |
|
GB122237 |
GB12221 |
GB9113 JB79 |
GB9131 |
GB/T13927 JB/T9092 |
低温球阀 压力试验
|
公称压力 |
1.6 |
2.5 |
4.0 |
|
强度试验 |
2.4 |
3.8 |
6.0 |
|
水密封试验 |
1.8 |
2.8 |
4.4 |
|
气密封试验 |
0.4-0.7 |
||
低温球阀 主要零件材料
|
阀体 |
WCB |
ZG1Cr18Ni9Ti |
CF8 |
CF3 |
ZG1Cr18Ni12Mo2Ti |
CF8M |
CF3M |
|
球体 阀杆 |
2Cr13 |
1Cr18Ni9Ti |
304 |
304L |
1Cr18Ni12Mo2Ti |
316 |
316L |
|
阀 座 |
聚四氟乙烯PTFE 加坡纤增强聚四氟乙烯PTFE+Glass 对位聚笨PPL |
||||||
|
垫片 |
聚四氟乙烯PTFE 不锈钢/柔性石墨 齿形垫片 |
||||||
|
阀杆座 |
聚四氟乙烯PTFE 不锈钢/柔性石墨 |
||||||
|
填料 |
聚四氟乙烯PTFE 增强柔性石墨 |
||||||
|
填料压盖 |
WCB |
1Cr18Ni9Ti |
304 |
304L |
1Cr18Ni12Mo2Ti |
316 |
316L |
|
温度 |
-40～150 |
||||||
|
介质 |
水 蒸汽 油品 |
硝酸类 |
强氧化介质 |
醋酸类 |
尿素类 |
||
低温球阀 主要外形尺寸
|
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
D0 |
|
凸面法兰 DQ41 16C 16P 16R |
15 |
130 |
95 |
65 |
45 |
14 |
4-14 |
78 |
140 |
|
20 |
140 |
105 |
75 |
55 |
14 |
4-14 |
84 |
160 |
|
|
25 |
150 |
115 |
85 |
65 |
14 |
4-14 |
95 |
180 |
|
|
32 |
165 |
135 |
100 |
78 |
16 |
4-18 |
150 |
250 |
|
|
40 |
180 |
145 |
110 |
85 |
16 |
4-18 |
150 |
300 |
|
|
50 |
200 |
160 |
125 |
100 |
18 |
4-18 |
170 |
350 |
|
|
65 |
220 |
180 |
145 |
120 |
20 |
4-18 |
195 |
350 |
|
|
80 |
250 |
195 |
160 |
135 |
20 |
8-18 |
215 |
400 |
|
|
100 |
280 |
215 |
180 |
155 |
20 |
8-18 |
250 |
500 |
|
|
125 |
320 |
245 |
210 |
185 |
22 |
8-18 |
265 |
600 |
|
|
150 |
360 |
280 |
240 |
210 |
24 |
8-23 |
270 |
800 |
|
|
200 |
400 |
335 |
295 |
265 |
26 |
12-23 |
330 |
1200 |
|
|
2.5MPa |
15 |
130 |
95 |
65 |
45 |
16 |
4-14 |
103 |
140 |
|
凸面法兰 RF DQ41 25 25P 25R |
20 |
140 |
105 |
75 |
55 |
16 |
4-14 |
112 |
160 |
|
25 |
150 |
115 |
85 |
65 |
16 |
4-14 |
123 |
180 |
|
|
32 |
165 |
135 |
100 |
78 |
18 |
4-18 |
150 |
250 |
|
|
40 |
180 |
145 |
110 |
85 |
18 |
4-18 |
156 |
300 |
|
|
50 |
200 |
160 |
125 |
100 |
20 |
8-18 |
172 |
350 |
|
|
65 |
220 |
180 |
145 |
120 |
22 |
8-18 |
197 |
350 |
|
|
80 |
250 |
195 |
160 |
135 |
22 |
8-23 |
222 |
400 |
|
|
100 |
280 |
230 |
190 |
160 |
24 |
8-23 |
253 |
500 |
|
|
125 |
320 |
270 |
220 |
188 |
28 |
8-25 |
275 |
600 |
|
|
150 |
360 |
300 |
250 |
218 |
30 |
8-25 |
286 |
800 |
|
|
200 |
400 |
360 |
310 |
278 |
34 |
12-25 |
340 |
1200 |
|
4.0MPa |
DN |
L |
D |
D1 |
D2 |
D6 |
b |
n-φd |
H |
D0 |
|
凹凸法兰 MFM DQ41 40 40P 40R |
15 |
130 |
95 |
65 |
45 |
40 |
16 |
4-14 |
103 |
140 |
|
20 |
140 |
105 |
75 |
55 |
51 |
16 |
4-14 |
112 |
160 |
|
|
25 |
150 |
115 |
85 |
65 |
58 |
16 |
4-14 |
123 |
160 |
|
|
32 |
180 |
135 |
100 |
78 |
66 |
18 |
4-18 |
150 |
250 |
|
|
40 |
200 |
145 |
110 |
85 |
76 |
18 |
4-18 |
156 |
250 |
|
|
50 |
220 |
160 |
125 |
100 |
88 |
20 |
4-18 |
172 |
350 |
|
|
65 |
250 |
180 |
145 |
120 |
110 |
22 |
8-18 |
197 |
350 |
|
|
80 |
280 |
195 |
160 |
135 |
121 |
22 |
8-18 |
222 |
450 |
|
|
100 |
320 |
230 |
190 |
160 |
150 |
24 |
8-23 |
253 |
450 |
|
|
125 |
400 |
270 |
220 |
188 |
176 |
28 |
8-25 |
275 |
600 |
|
|
150 |
400 |
300 |
250 |
218 |
204 |
30 |
8-25 |
286 |
800 |
|
|
200 |
550 |
375 |
320 |
282 |
260 |
38 |
12-30 |
340 |
1200 |
|
|
6.4MPa |
15 |
165 |
105 |
75 |
55 |
40 |
18 |
4-14 |
105 |
140 |
|
凹凸法兰 MFM DQ41 64 64P 64R |
20 |
190 |
125 |
90 |
68 |
51 |
20 |
4-18 |
125 |
160 |
|
25 |
216 |
135 |
100 |
78 |
58 |
22 |
4-18 |
135 |
250 |
|
|
32 |
229 |
150 |
110 |
82 |
66 |
24 |
4-23 |
150 |
350 |
|
|
40 |
241 |
165 |
125 |
95 |
76 |
24 |
4-23 |
165 |
350 |
|
|
50 |
292 |
175 |
135 |
105 |
88 |
26 |
4-23 |
175 |
450 |
|
|
65 |
330 |
200 |
160 |
130 |
110 |
28 |
8-23 |
200 |
450 |
|
|
80 |
356 |
210 |
170 |
140 |
121 |
30 |
8-23 |
210 |
600 |
|
|
100 |
432 |
250 |
200 |
168 |
150 |
32 |
8-25 |
250 |
700 |
|
|
125 |
508 |
295 |
240 |
202 |
176 |
36 |
8-30 |
295 |
1100 |
|
|
150 |
559 |
340 |
280 |
240 |
204 |
38 |
8-34 |
340 |
1500 |
