Soft seal butterfly valve the double eccentric flange butterfly valve developed by our company has a compact structure. The 90 ° rotary switch is easy, reliable and has a long service life. It is widely used in water supply and drainage of water plants, power plants, steel mills, papermaking, chemical industry, catering and other systems, as adjustment and cut-off use.
1. The valve adopts double eccentric structure, which has the sealing function of closing more tightly, and the sealing performance is reliable;
2. Stainless steel and NBR oil resistant rubber are used as sealing materials, which have long service life,
3. The rubber seal ring can be located on the valve body or butterfly plate. It can be used for different media for users to choose;
4. The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance
5. As long as the sealing valve seat material is replaced, it can be used in different media;
6. The valve body has two-way sealing function. It can be installed in any direction without the control of medium flow direction and space position,
7. The valve has unique structure, flexible operation, labor saving and convenience.
Design specification: GB/T 12238
Structure length: GB/T 12221
Flange connection: GB/T9113, JB/T172416
Test and inspection: GB/T 13927
Nominal diameter: DN50~1200mm
Nominal pressure: PN0.6~ 4.0mpa
Applicable temperature: ≤120℃
Main materials: WCB, QT450-10, HT200, HT250
Applicable medium: air, water, sewage, steam, gas, oil, etc
DN |
Dimensions |
Connection size |
||||||
ΦD |
||||||||
L |
H |
H1 |
A |
B |
0.6MPa |
1.0MPa |
1.6MPa |
|
50 |
43 |
77 |
309 |
180 |
200 |
88 |
99 |
99 |
65 |
46 |
85 |
320 |
180 |
200 |
108 |
118 |
118 |
80 |
46 |
95 |
340 |
180 |
200 |
124 |
132 |
132 |
100 |
52 |
105 |
360 |
180 |
200 |
144 |
156 |
156 |
125 |
56 |
129 |
405 |
180 |
200 |
174 |
184 |
184 |
150 |
56 |
132 |
450 |
270 |
280 |
199 |
211 |
211 |
200 |
60 |
165 |
607 |
270 |
280 |
254 |
266 |
266 |
250 |
68 |
197 |
659 |
270 |
280 |
309 |
319 |
319 |
300 |
78 |
234 |
742 |
380 |
420 |
363 |
370 |
370 |
350 |
78 |
283 |
792 |
380 |
420 |
413 |
429 |
429 |
400 |
102 |
325 |
887 |
450 |
470 |
463 |
480 |
480 |
450 |
114 |
369 |
935 |
480 |
490 |
518 |
530 |
548 |
500 |
127 |
404 |
985 |
480 |
490 |
568 |
582 |
609 |
600 |
154 |
470 |
1243 |
480 |
490 |
667 |
682 |
720 |
700 |
165 |
503 |
1346 |
640 |
660 |
772 |
794 |
794 |
800 |
190 |
571 |
1466 |
640 |
660 |
878 |
901 |
901 |
900 |
203 |
621 |
1565 |
750 |
860 |
978 |
1001 |
1001 |
1000 |
216 |
702 |
1781 |
850 |
900 |
1078 |
1112 |
1112 |
1200 |
254 |
818 |
1965 |
850 |
900 |
1295 |
1328 |
1328 |