BZ41H夹套保温闸阀
一、工作原理
夹套闸阀主要用于石油、化工、冶金、制药等各类系统中，以输送常温下会凝固的高粘度介质。该系列阀门的夹套焊装于阀门的两法兰之间，阀门的侧面、底部设置有夹套的连接口。由于埔加了夹套，此种阀门的连接法兰尺寸要比同一规格普通闸阀的连接法兰大一到两个规格，但结构长度与同规格的阀门相同，夹套中可自由地流过蒸汽或其它热的保温介质，确保粘稠介质可顺畅地流过阀门。
二、性能参数
| 公称压力 |
1.6 |
2.5 |
| 强度试验 |
2.4 |
3.75 |
| 水密封试验 |
1.76 |
2.75 |
| 气密封试验 |
0.5～0.7 |
0.5～0.7 |
三、主要外形尺寸和连接尺寸（系列1--不变径）
1.BZ41H-16C主要外形尺寸和连接尺寸 PN16(1.6MPa)
| 型号 |
口径(mm) |
L |
D |
D1 |
D2 |
b |
Z-φd |
| BZ41H-16C |
15 |
130 |
95 |
65 |
45 |
14 |
4-14 |
| BZ41W-16P |
20 |
150 |
105 |
75 |
55 |
14 |
4-14 |
| |
25 |
160 |
115 |
85 |
65 |
14 |
4-14 |
| |
32 |
180 |
135 |
100 |
78 |
16 |
4-18 |
| |
40 |
200 |
145 |
110 |
85 |
16 |
4-18 |
| |
50 |
250 |
160 |
125 |
100 |
16 |
4-18 |
| |
65 |
265 |
180 |
145 |
120 |
18 |
4-18 |
| |
80 |
280 |
195 |
160 |
135 |
20 |
8-18 |
| |
100 |
300 |
215 |
180 |
155 |
20 |
8-18 |
| |
125 |
325 |
245 |
210 |
185 |
22 |
8-18 |
| |
150 |
350 |
280 |
240 |
210 |
24 |
8-23 |
| |
200 |
400 |
335 |
295 |
265 |
26 |
12-23 |
| |
250 |
450 |
405 |
355 |
320 |
30 |
12-25 |
2.BZ41H-25C主要外形尺寸和连接尺寸 PN25(2.5MPa)
| 型号 |
口径 (mm) |
L |
D |
D1 |
D2 |
b |
Z-φd |
| BZ41H-25C |
15 |
130 |
95 |
65 |
45 |
16 |
4-14 |
| BZ41W-25P |
20 |
150 |
105 |
75 |
55 |
16 |
4-14 |
| |
25 |
160 |
115 |
85 |
65 |
16 |
4-14 |
| |
32 |
180 |
135 |
100 |
78 |
18 |
4-18 |
| |
40 |
200 |
145 |
110 |
85 |
18 |
4-18 |
| |
50 |
250 |
160 |
125 |
100 |
20 |
4-18 |
| |
65 |
265 |
180 |
145 |
120 |
22 |
8-18 |
| |
80 |
280 |
195 |
160 |
135 |
22 |
8-18 |
| |
100 |
300 |
230 |
190 |
160 |
24 |
8-23 |
| |
125 |
325 |
270 |
220 |
188 |
28 |
8-25 |
| |
150 |
350 |
300 |
250 |
218 |
30 |
8-25 |
| |
200 |
400 |
360 |
310 |
278 |
34 |
12-25 |
| |
250 |
450 |
425 |
370 |
332 |
36 |
12-30 |
四、主要外形尺寸和连接尺寸（系列2--变径、法兰加大）
1.BZ41H-16C主要外形尺寸和连接尺寸 PN16(1.6MPa)
| 型号 |
DN(mm) |
L |
D |
D1 |
D2 |
b |
Z-φd |
| BZ41H-16C |
DN15 |
130 |
115 |
85 |
65 |
14 |
4-14 |
| BZ41W-16P |
DN20 |
150 |
135 |
100 |
78 |
16 |
4-18 |
| |
DN25 |
160 |
145 |
110 |
85 |
16 |
4-18 |
| |
DN32 |
180 |
160 |
125 |
100 |
16 |
4-18 |
| |
DN40 |
200 |
180 |
145 |
120 |
18 |
4-18 |
| |
DN50 |
250 |
195 |
160 |
135 |
20 |
8-18 |
| |
DN65 |
265 |
215 |
180 |
155 |
20 |
8-18 |
| |
DN80 |
280 |
245 |
210 |
185 |
22 |
8-18 |
| |
DN100 |
300 |
280 |
240 |
210 |
24 |
8-23 |
| |
DN125 |
325 |
335 |
295 |
265 |
26 |
12-23 |
| |
DN150 |
350 |
405 |
355 |
320 |
30 |
12-25 |
| |
DN200 |
400 |
460 |
410 |
375 |
30 |
12-25 |
| |
DN250 |
450 |
520 |
470 |
435 |
34 |
16-25 |
| |
DN300 |
500 |
580 |
525 |
485 |
36 |
16-30 |
2.BZ41H-25C主要外形尺寸和连接尺寸 PN25(2.5MPa)
| 型号 |
DN(mm) |
L |
D |
D1 |
D2 |
b |
Z-φd |
| BZ41H-25C |
DN15 |
130 |
115 |
85 |
65 |
16 |
4-14 |
| BZ41W-25P |
DN20 |
150 |
135 |
100 |
78 |
18 |
4-18 |
| |
DN25 |
160 |
145 |
110 |
85 |
18 |
4-18 |
| |
DN32 |
180 |
160 |
125 |
100 |
20 |
4-18 |
| |
DN40 |
200 |
180 |
145 |
120 |
22 |
4-18 |
| |
DN50 |
250 |
195 |
160 |
135 |
22 |
8-18 |
| |
DN65 |
265 |
230 |
190 |
160 |
24 |
8-18 |
| |
DN80 |
280 |
270 |
220 |
188 |
28 |
8-18 |
| |
DN100 |
300 |
300 |
250 |
218 |
30 |
8-23 |
| |
DN125 |
325 |
360 |
310 |
278 |
34 |
12-23 |
| |
DN150 |
350 |
425 |
370 |
332 |
36 |
12-25 |
| |
DN200 |
400 |
485 |
430 |
390 |
40 |
12-25 |
| |
DN250 |
450 |
550 |
480 |
448 |
44 |
16-25 |
| |
DN300 |
500 |
610 |
550 |
505 |
48 |
16-30 |
