Butterfly check valve buffer is depend on medium flow itself, and automatically open and close the disc, used to prevent the backflow medium valve, also known as the non-return valve, check valve, valve, and the back pressure valve upstream. Check valve belongs to a kind of automatic valve, its main role is to prevent the backflow medium, to prevent the pump and drive motor reversal, and the discharge of the container medium. Check valve can also be used to give the pressure could rise to more than the system pressure of the secondary system supply piping.
Note: parameters are for reference only, or is not complete. Valves can choose according to the different pressure, material, diameter, drive mode, etc. Specific electrical contact or online advice, please.
|
公称压力 |
PN1.0MPa 、 PN1.6MPa、 PN2.5MPa、 PN4.0MPa、 PN6.4MPa 、 PN10.0MPa |
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|
型号 |
H76H-C |
H76W-P |
H76W-P8 |
H76W-P3 |
H76W-R |
H76W-R8 |
H76W-R3 |
主要零件材料 |
阀 体 |
WCB(A105) |
ZG1Cr18Ni9Ti |
CF8(304) |
CF8(304L) |
ZG1Cr18Ni12Mo2Ti |
CF8M(316) |
CF3M(316L) |
阀 瓣 |
CF8 |
CF8 |
CF8 |
CF3 |
CF8M |
CF8M |
CF3M |
|
阀 轴 |
2Cr13 |
1Cr18Ni9Ti |
0Cr18Ni9 |
00Cr19Ni10 |
1Cr18Ni12Mo2Ti |
0Cr17Ni12Mo2 |
00Cr17Ni14Mo2 |
|
弹 簧 |
0Cr18Ni9 |
0Cr18Ni9 |
0Cr18Ni9 |
00Cr19Ni10 |
0Cr17Ni12Mo2 |
0Cr17Ni12Mo2 |
00Cr17Ni14Mo2 |
适用工况
|
适用介质 |
水、 蒸汽、油品等
|
硝酸等腐蚀性介质 |
强氧化性介质 |
醋酸等腐蚀性介质 |
尿素等 腐蚀性介质 |
适用温度(℃) |
-29~425 |
-196~540 |
-196~425 |
-196~540 |
-196~455 |
压力级 |
口径 |
尺寸(mm) |
重量(kg) |
配管法兰(供参考) |
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NPS |
DN |
L |
D |
D 3 |
D 2 |
螺栓孔中 心圆直径 D 1 |
螺栓数量 |
螺栓直径d
|
螺栓长度 L 1
|
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|
|
in |
mm |
RF |
RJ |
||||||||
Class 150PN2.0MPa |
2 |
50 |
60 |
103 |
56 |
51 |
2 |
120.5 |
4 |
5/8 |
M16 |
140 |
155 |
2 1 /2 |
65 |
67 |
122 |
73 |
65 |
3 |
139.5 |
4 |
5/8 |
M16 |
150 |
165 |
|
3 |
80 |
73 |
135 |
88 |
80 |
4 |
152.5 |
4 |
5/8 |
M16 |
160 |
175 |
|
4 |
100 |
73 |
173 |
108 |
102 |
6 |
190.5 |
8 |
5/8 |
M16 |
170 |
185 |
|
5 |
125 |
86 |
195 |
132 |
127 |
8 |
216.0 |
8 |
3/4 |
M20 |
190 |
205 |
|
6 |
150 |
98 |
220 |
160 |
152 |
13 |
241.5 |
8 |
3/4 |
M20 |
205 |
220 |
|
8 |
200 |
127 |
277 |
210 |
203 |
25 |
298.5 |
8 |
3/4 |
M20 |
240 |
255 |
|
10 |
250 |
146 |
337 |
266 |
254 |
39 |
362.0 |
12 |
7/8 |
M24 |
270 |
285 |
|
12 |
300 |
181 |
407 |
310 |
305 |
54 |
432.0 |
12 |
7/8 |
M24 |
310 |
325 |
|
14 |
350 |
184 |
448 |
355 |
350 |
80 |
476.0 |
12 |
1 |
M27 |
325 |
340 |
|
16 |
400 |
191 |
512 |
405 |
400 |
117 |
540.0 |
16 |
1 |
M27 |
340 |
355 |
|
18 |
450 |
203 |
547 |
455 |
450 |
138 |
578.0 |
16 |
1 1 /8 |
M30 |
365 |
380 |
|
20 |
500 |
219 |
604 |
505 |
500 |
163 |
635.0 |
20 |
1 1 /8 |
M30 |
385 |
400 |
|
24 |
600 |
222 |
715 |
605 |
600 |
331 |
749.5 |
20 |
1 1 /4 |
M33 |
405 |
420 |
|
28 |
700 |
305 |
773 |
700 |
700 |
380 |
795.5 |
40 |
3/4 |
M20 |
455 |
- |
|
30 |
750 |
305 |
824 |
750 |
746 |
425 |
846.0 |
44 |
3/4 |
M20 |
455 |
- |
|
32 |
800 |
305 |
878 |
800 |
796 |
560 |
900.0 |
48 |
3/4 |
M20 |
460 |
- |
|
36 |
900 |
368 |
983 |
910 |
898 |
640 |
1009.5 |
44 |
7/8 |
M24 |
540 |
- |
|
42 |
1050 |
432 |
1142 |
1055 |
1050 |
960 |
1171.5 |
48 |
1 |
M27 |
625 |
- |
|
48 |
1200 |
524 |
1302 |
1205 |
1200 |
1400 |
1335.0 |
44 |
1 1 /8 |
M30 |
740 |
- |
|
Class 300PN5.0MPa |
2 |
50 |
60 |
110 |
58 |
51 |
3 |
127.0 |
8 |
5/8 |
M16 |
155 |
175 |
2 1 /2 |
65 |
67 |
128 |
73 |
65 |
4 |
149.0 |
8 |
3/4 |
M20 |
175 |
195 |
|
3 |
80 |
73 |
147 |
88 |
80 |
6 |
168.5 |
8 |
3/4 |
M20 |
190 |
210 |
|
4 |
100 |
73 |
179 |
108 |
102 |
8 |
200.0 |
8 |
3/4 |
M20 |
195 |
215 |
|
5 |
125 |
86 |
214 |
132 |
127 |
15 |
235.0 |
8 |
3/4 |
M20 |
215 |
235 |
|
6 |
150 |
98 |
249 |
160 |
152 |
18 |
270.0 |
12 |
3/4 |
M20 |
230 |
250 |
|
8 |
200 |
127 |
305 |
210 |
203 |
31 |
330.0 |
12 |
7/8 |
M24 |
280 |
300 |
|
10 |
250 |
146 |
359 |
266 |
254 |
51 |
387.5 |
16 |
1 |
M27 |
315 |
335 |
|
12 |
300 |
181 |
420 |
310 |
305 |
77 |
451.0 |
16 |
1 1 /8 |
M30 |
365 |
385 |
|
14 |
350 |
222 |
483 |
355 |
350 |
117 |
514.5 |
20 |
1 1 /8 |
M30 |
410 |
430 |
|
16 |
400 |
232 |
537 |
405 |
400 |
190 |
571.5 |
20 |
1 1 /4 |
M33 |
435 |
455 |
|
18 |
450 |
264 |
594 |
455 |
450 |
200 |
628.5 |
24 |
1 1 /4 |
M33 |
475 |
535 |
|
20 |
500 |
292 |
652 |
505 |
500 |
265 |
686.0 |
24 |
1 1 /4 |
M33 |
510 |
585 |
|
24 |
600 |
318 |
772 |
608 |
600 |
410 |
813.0 |
24 |
1 1 /2 |
M39 |
560 |
- |
|
30 |
750 |
368 |
882 |
740 |
735 |
660 |
921.0 |
36 |
1 3 /8 |
M36 |
650 |
- |
|
36 |
900 |
483 |
1044 |
880 |
873 |
1020 |
1089.0 |
32 |
1 5 /8 |
M42 |
800 |
- |
|
42 |
1050 |
568 |
1196 |
1045 |
1035 |
1540 |
1244.5 |
36 |
1 3 /4 |
M45 |
920 |
- |
|
48 |
1200 |
629 |
1365 |
1190 |
1179 |
2260 |
1416.0 |
40 |
1 7 /8 |
M48 |
1010 |
- |