D371X butterfly valve Our company developed the soft sealing center line intersecting butterfly valve, double eccentric flange butterfly is compact structure.90° rotary switch is easy, reliable sealing, long service life, widely used in water plants, power plants, steel mills, paper, chemical, food and other systems supply and drainage, as a regulation and cut-off use.
1. The valve adopts double eccentric structure, with the sealing function of tighter and tighter closing, and reliable sealing performance;
2. The sealing accessory material is made of stainless steel and nitrile oil-resistant rubber, with a long service life.
3, rubber sealing ring can be located in the valve body, also can be located in the butterfly plate, can be suitable for different characteristics of media, for users to choose;
4, butterfly plate adopts frame structure, high strength, large flow area, small flow resistance.
5, the overall baking paint, can effectively prevent corrosion and as long as the replacement of sealing seat material, can be used in different media;
6. The valve body has two-way sealing function.The installation is not controlled by the flow direction of the media, nor affected by the spatial position. It can be installed in any direction.
7. The valve has unique structure, flexible operation, labor-saving and convenient.
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 |