产品型号 H44H
?nbsp; 径： DN15～DN300
公称压力 1.6?5.0MPa
用逓/p>
旋启式止回阀适用于公称压力PN1.6?5.0MPa，工作温?29℃～550℃的石油、化工、制药、化肥、电力等行业的各种工况管路上。适用介质有：水、油品、蒸汽、酸性介质等、/p>
结构优势与特炸/p>
1、旋启式止回阀按国家标准GB12236设计制造，结构合理，密封可靠，性能优良、/p>
2、阀瓣和阀座的密封面用铁基合金或司太立（stellite）钴基硬质合金堆焊而成，耐磨、耐高温、耐腐蚀、抗擦伤性能好、使用寿命长、/p>
3、旋启式止回阀可采用各种配管法兰标准及法兰密封面形式，满足各种工程需要及用户要求、/p>
4、阀体材料品种齐全，垫片可根据实际工况或用户要求合理选配，能适用于各种压力、温度及介质工况、/p>
5、阀瓣围绕阀座外的销轴旋转，减少关闭时发生猛烈冲击、/p>
6、旋启式止回阀的销轴与阀瓣连接采用内装式结构，不存在外泄漏点，使用更可靠、/p>
PN1.6｝/span>2.5MPa旋启式止回阀--外形尺寸
公称压力 |
公称通径 |
尺寸＇/span>mm（/span> |
重量 |
|||||||
L |
D |
D1 |
D2 |
B-f |
Z-d |
D3 |
H |
|||
1.6 |
50 |
230 |
160 |
125 |
100 |
16-2 |
4-18 |
185 |
160 |
22 |
65 |
290 |
180 |
145 |
120 |
18-3 |
4-18 |
215 |
177 |
26 |
|
80 |
310 |
195 |
160 |
135 |
20-3 |
8-18 |
235 |
187 |
33 |
|
100 |
350 |
215 |
180 |
155 |
20-3 |
8-18 |
255 |
202 |
39 |
|
125 |
400 |
245 |
210 |
185 |
22-3 |
8-18 |
285 |
227 |
57 |
|
150 |
480 |
280 |
240 |
210 |
24-3 |
8-23 |
330 |
263 |
80 |
|
200 |
550 |
335 |
295 |
265 |
26-3 |
12-23 |
385 |
293 |
95 |
|
250 |
650 |
405 |
355 |
320 |
30-3 |
12-25 |
455 |
330 |
175 |
|
300 |
750 |
460 |
410 |
375 |
30-4 |
12-25 |
515 |
382 |
260 |
|
350 |
850 |
520 |
470 |
435 |
34-4 |
16-25 |
545 |
430 |
360 |
|
400 |
950 |
581 |
525 |
485 |
36-4 |
16-30 |
600 |
480 |
496 |
|
500 |
1150 |
715 |
650 |
608 |
44-4 |
20-34 |
730 |
560 |
588 |
|
2.5 |
50 |
230 |
160 |
125 |
100 |
20-3 |
4-18 |
185 |
177 |
22 |
65 |
290 |
180 |
145 |
120 |
22-3 |
8-18 |
215 |
192 |
30 |
|
80 |
310 |
195 |
160 |
135 |
22-3 |
8-18 |
235 |
192 |
35 |
|
100 |
350 |
230 |
190 |
160 |
24-3 |
8-23 |
260 |
217 |
52 |
|
125 |
400 |
245 |
220 |
188 |
28-3 |
8-25 |
296 |
250 |
73 |
|
150 |
480 |
300 |
250 |
218 |
30-3 |
8-25 |
330 |
270 |
103 |
|
200 |
550 |
360 |
310 |
276 |
34-3 |
12-25 |
280 |
350 |
135 |
|
250 |
650 |
425 |
370 |
332 |
39-3 |
12-30 |
430 |
410 |
196 |
|
300 |
750 |
485 |
430 |
390 |
40-4 |
16-30 |
490 |
430 |
285 |
|
350 |
850 |
555 |
490 |
448 |
44-4 |
16-34 |
545 |
450 |
388 |
|
400 |
950 |
621 |
550 |
505 |
48-4 |
16-34 |
600 |
560 |
496 |
|
500 |
1150 |
730 |
660 |
610 |
52-4 |
20-41 |
730 |
618 |
641 |
|
旋启式止回阀--型号
配管法兰 |
公称压力 |
法兰密封靡/span> |
产品型号 |
|||
JB/T74 |
1.6 |
凸面 |
H44H-16C |
H44W-16R |
H44W-16P |
H44Y-16I |
2.5 |
H44H-25 |
H44W-25R |
H44W-25P |
H44Y-25I |
||
4.0 |
凹凸靡/span> |
H44H-40 |
H44W-40R |
H44W-40P |
H44Y-40I |
|
6.4 |
H44H-64 |
H44W-64R |
H44W-64P |
H44Y-64I |
||
10.0 |
H44H-100 |
H44W-100R |
H44W-100P |
H44Y-100I |
||
16.0 |
H44H-160 |
H44W-160R |
H44W-160P |
H44Y-160I |
||
25.0 |
H44H-250 |
H44W-250R |
H44W-250P |
H44Y-250I |
||
旋启式止回阀--标准与规茂/span>
设计与制速/span> |
结构长度 |
压力、温度等?/span> |
连接法兰 |
试验与检骋/span> |
GB12236 |
GB12221 |
GB9131 |
JB/T74-94 |
JB/T9092-1999 |
旋启式止回阀--主要零件材料
零件名称 |
材料牌号 |
|||
阀佒/span> |
WCB |
ZGCr5Mo |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
阀盕/span> |
WCB |
ZGCr5Mo |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
阀瓢/span> |
WCB |
ZGCr5Mo |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
阀杅/span> |
WCB |
ZGCr5Mo |
ZG1Cr18Ni9Ti |
ZG1Cr18Ni12Mo2Ti |
阀?/span> |
25 |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
销轳/span> |
1Cr17Ni2 |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
密封环、垫牆/span> |
包覆?/span> |
1Cr18Ni9Ti |
1Cr18Ni12Mo2Ti |
|
旋启式止回阀--零件性能
公称压力 |
试验压力 |
适用温度＇/span>ℂ/span>（/span> |
适用介质 |
||||
强度试验 |
密封试验 |
WCB |
Cr5Mo |
1Cr18Ni12Mo2Ti |
1Cr18Ni19Ti |
||
1.6 |
2.4 |
1.8 |
?25 |
?50 |
?00 |
?00 |
氳/span> 油品 酸?/span> |
2.5 |
3.8 |
2.8 |
|||||
4.0 |
6.0 |
4.4 |
|||||
6.4 |
9.6 |
7.1 |
|||||
10.0 |
15.0 |
11.0 |
|||||
16.0 |
24.0 |
17.6 |
|||||
25.0 |
37.5 |
27.5 |
|||||
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