| 低溫球閥分為低溫浮動球和低溫固定球兩類,用于截斷或接通管路中的低溫介質,介質最低溫度不得低于-196度。
設計與制造Design and Manufacture
GB122237
結構長度Face To Face
GB12221
法蘭尺寸Flange Dimension
GB9113 JB79
壓力-溫度Pressure Temperature Lating
GB9131
試驗-檢驗Inspection And Test
GB/T13927 JB/T9092
低溫球閥壓力試驗 Pressure Test
|
公稱壓力NominalPressure |
1.6 |
2.5 |
4.0 |
|
強度試驗
Shell Test |
2.4 |
3.8 |
6.0 |
|
水密封試驗
Water Seal Test |
1.8 |
2.8 |
4.4 |
|
氣密封試驗
Air Seal Test |
0.4-0.7 |
低溫球閥主要零件材料及性能 Main Part Materials and Property
|
閥體
Body |
WCB |
ZG1Cr18Ni9Ti |
CF8 |
CF3 |
ZG1Cr18Ni12Mo2Ti |
CF8M |
CF3M |
|
球體 閥桿
Ball Stem |
2Cr13 |
1Cr18Ni9Ti |
304 |
304L |
1Cr18Ni12Mo2Ti |
316 |
316L |
|
閥 座
Seat |
聚四氟乙烯PTFE 加坡纖增強聚四氟乙烯PTFE+Glass 對位聚笨PPL |
|
墊片
Shim |
聚四氟乙烯PTFE 不銹鋼/柔性石墨Stainless Steel/flexible Graphite 齒形墊片Tooth Profile Gasket |
|
閥桿座
Stem Seat |
聚四氟乙烯PTFE 不銹鋼/柔性石墨 Stainless Steel/Flexible Graphite |
|
填料
Packing |
聚四氟乙烯PTFE 增強柔性石墨 Enhanced Flexible Graphite |
|
填料壓蓋
Gland |
WCB |
1Cr18Ni9Ti |
304 |
304L |
1Cr18Ni12Mo2Ti |
316 |
316L |
|
溫度
Temperature |
-40～150 |
|
介質
Medium |
水 蒸汽 油品
Water steam
Oil goods |
硝酸類 Nitric Acid |
強氧化介質
strongey oxidable medium |
醋酸類 Acetic Acid |
尿素類 Urea |
低溫球閥主要尺寸 Size Main Dimensions
|
1.6MPa |
DN |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
D0 |
|
凸面法蘭
RF
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 |
|
凸面法蘭
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 |
低溫球閥主要尺寸 Size Main Dimensions
|
4.0MPa |
DN |
L |
D |
D1 |
D2 |
D6 |
b |
n-φd |
H |
D0 |
|
凹凸法蘭
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 |
|
凹凸法蘭
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 | | 
