Flanged Metal Seat butterfly Valve
Purpose
Butterfly valve for the petroleum, chemical, food, medicine, metallurgy, shipbuilding, paper, industrial environmental protection, water supply and drainage, on high-level pipeline architecture can be in a variety of corrosive, non-corrosive gases, liquids, fluids and solid powder Inaded pipelines and containers for the headstock or adjust the medium flow purposes.
Features
- Butterfly plate ring for soft and hard metal sheets stacked with metal hard sealing and sealing of the dual advantage of flexibility in terms of low temperature and high-temperature circumstances, have Excellent sealing performance.
- Using three dimensional eccentric structure, Butterfly Valve base plate with almost no friction, With more clearance seal Function is tightening.
- Valve body sealing surface, the use of welding stainless steel, cobalt-based alloy, sealing surface wear-resistant, long service life.
- Unique structure, operation flexibility, labor-saving, convenient and free from the pressure ring high-and low-impact, reliable sealing performance.
Performance Parameters
|
DN(mm)Nominal diameter |
50-200 |
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PN(MPa)Nominal pressure |
1.0 |
2.5 |
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Testing pressure |
Shell |
1.5 |
3.75 |
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|
Sealing |
1.1 |
2.75 |
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Working temperature(°C) |
-40~+570 |
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Suitable mediums |
Water, sea water, air, oils, acids alkali, etc. |
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Executive Standard
- Flange connection dimension: GB/T 9113.1, GB/T 17241.6.
- Structural length: GB/T 12221.
- Pressure test: GB/T 13927.
Main Part Materials
- Body —Ductile iron/Grey cast iron/cast steel.
- Valve plate—Ductile iron/Grey cast iron/Cast steel.
- Stem—Stainless steel.
- Seal ring—NBR/EPDM/Fluorine rubber.
- Packing—Flexible graphite/V—type rubber pad.
Main dimensions
|
DN(mm) |
Main dimension |
Flanged size and bolting specification |
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|
|
|
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|
L |
L1 |
H2 |
H1 |
D |
D1 |
D2 |
n-od |
D |
D1 |
D2 |
n-od |
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|
100 |
127 |
56 |
285 |
107 |
210 |
170 |
144 |
4-18 |
220 |
180 |
156 |
8-18 |
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|
125 |
140 |
64 |
300 |
123 |
240 |
200 |
174 |
8-18 |
250 |
210 |
184 |
8-18 |
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|
150 |
140 |
70 |
320 |
140 |
265 |
225 |
199 |
8-18 |
285 |
240 |
211 |
8-22 |
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|
200 |
152 |
71 |
370 |
180 |
320 |
280 |
254 |
8-18 |
340 |
295 |
266 |
8-22 |
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|
250 |
165 |
76 |
420 |
200 |
375 |
335 |
309 |
12-18 |
395 |
350 |
319 |
12-22 |
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|
300 |
178 |
83 |
500 |
250 |
440 |
395 |
363 |
12-22 |
445 |
400 |
370 |
12-22 |
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|
350 |
190 |
92 |
530 |
270 |
490 |
445 |
413 |
12-22 |
505 |
460 |
429 |
16-22 |
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|
400 |
216 |
102 |
570 |
300 |
540 |
495 |
463 |
16-22 |
565 |
515 |
480 |
16-26 |
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|
450 |
222 |
114 |
600 |
320 |
595 |
550 |
518 |
16-22 |
615 |
565 |
530 |
20-26 |
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|
500 |
229 |
127 |
680 |
360 |
645 |
600 |
568 |
20-22 |
670 |
6210 |
582 |
20-26 |
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|
600 |
267 |
154 |
750 |
420 |
755 |
705 |
667 |
20-26 |
780 |
725 |
682 |
20-30 |
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|
700 |
292 |
65 |
810 |
480 |
860 |
810 |
772 |
24-26 |
895 |
840 |
794 |
24-30 |
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|
800 |
318 |
190 |
905 |
540 |
975 |
920 |
878 |
24-30 |
1015 |
950 |
901 |
24-33 |
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|
900 |
330 |
203 |
960 |
590 |
1075 |
1020 |
978 |
24-30 |
1115 |
1050 |
1001 |
28-33 |
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|
1000 |
410 |
216 |
1010 |
640 |
1175 |
1120 |
1078 |
28-30 |
1230 |
1160 |
1112 |
28-36 |
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|
1200 |
470 |
254 |
1175 |
750 |
1405 |
1340 |
1295 |
32-33 |
1455 |
1380 |
1328 |
32-39 |
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|
1400 |
530 |
/ |
1310 |
860 |
1630 |
1560 |
1510 |
36-36 |
1675 |
1590 |
1530 |
36-42 |
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|
1600 |
600 |
/ |
1460 |
980 |
1830 |
1760 |
1710 |
40-36 |
1915 |
1820 |
1750 |
40-48 |
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|
1800 |
670 |
/ |
1560 |
1090 |
2045 |
1970 |
1918 |
44-39 |
2115 |
2020 |
1950 |
44-48 |
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|
2000 |
760 |
/ |
1670 |
1190 |
2265 |
2180 |
2125 |
48-42 |
2325 |
2230 |
2150 |
48-48 |
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Note: Could be produce according to ANSI, JIS, DIN standard or Non standard.
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