保溫截止閥性能規范
BJ45W保溫截止閥適用于化工、化肥行業的管路上，夾套內涵入蒸汽能防止介質結晶。
| 型號 |
公稱壓力PNMPa |
試驗壓力 |
適用溫度 |
適用介質 |
保溫套壓力MPa |
| 殼體 |
密封 |
| BJ45W-25P |
2.5 |
3.75 |
2.75 |
≤200 |
硝酸類 |
≤1.0 |
| BJ45W-40P |
4.0 |
6.0 |
4.4 |
| BJ45W-64P |
6.4 |
9.0 |
6.6 |
| BJ45W-25R |
2.5 |
3.75 |
2.75 |
硝酸類 |
| BJ45W-40R |
4.0 |
3.0 |
4.4 |
| BJ45W-64R |
6.4 |
9.0 |
6.6 |
BJ45W保溫截止閥型主要外形尺寸和連接尺寸II型法蘭大一級
| 公稱壓力PN |
公稱通徑DN |
尺寸 |
| L |
D |
D1 |
D2 |
D3 |
B1 |
fo |
B |
D6 |
3-G |
Z-Φd |
H |
H1 |
Do |
2.5
4.0 |
15 |
170 |
105 |
75 |
55 |
35 |
8 |
4 |
16 |
51 |
3/8 |
4-Φ14 |
250 |
262 |
120 |
| 20 |
190 |
115 |
85 |
65 |
42 |
8 |
4 |
16 |
58 |
3/8 |
4-Φ14 |
292 |
308 |
140 |
| 25 |
210 |
135 |
100 |
78 |
50 |
8 |
4 |
18 |
66 |
3/8 |
4-Φ18 |
340 |
375 |
160 |
| 32 |
230 |
145 |
110 |
85 |
60 |
8 |
4 |
18 |
76 |
1/2 |
4-Φ18 |
338 |
375 |
160 |
| 40 |
260 |
160 |
125 |
100 |
72 |
8 |
4 |
20 |
88 |
1/2 |
4-Φ18 |
360 |
386 |
160 |
| 50 |
300 |
180 |
145 |
120 |
94 |
8 |
4 |
22 |
110 |
1/2 |
8-Φ18 |
410 |
450 |
240 |
| 65 |
340 |
195 |
160 |
135 |
105 |
8 |
4 |
22 |
121 |
1/2 |
8-Φ18 |
440 |
485 |
240 |
| 80 |
380 |
230 |
190 |
160 |
128 |
11 |
4.5 |
24 |
150 |
1/2 |
8-Φ23 |
540 |
600 |
280 |
| 100 |
430 |
270 |
220 |
188 |
154 |
11 |
4.5 |
28 |
176 |
1/2 |
8-Φ25 |
560 |
625 |
320 |
| 125 |
490 |
300 |
250 |
218 |
182 |
11 |
4.5 |
30 |
204 |
1/2 |
8-Φ25 |
625 |
737 |
360 |
| 150 |
550 |
330 |
280 |
248 |
212 |
11 |
4.5 |
32 |
204 |
1/2 |
12-Φ25 |
720 |
790 |
360 |
