Purpose and characteristic
Ventilated butterfly valve use same material as body to process gasket,the suitable temperature is according to material of body ,nominal pressureis¡Ü1.0MPa,generally,it is utilized in pipe of industry,metallurgy,environmental protection etc.as ventilation and adjust meduum flux.
The main characteristic as below:
1.Novel and resonable design ,particular configuration,light,and open and close rapidly.
2.Small operative moment,operation easily,laboursaving and skilful.
3.Use suitable material to satisfy low,middle,high differnt medium and corrosive medium etc.
Adoption standard:
Design standard£ºGB/T 12238-1989£»JB/T8692-1998
Flange connection dimension£ºGB/T9115£®1-2000
Structure length£ºGB/T12221-1989£»
Pressuer test£ºGB/T 13927-1992£»JB/T9092-1999
Main technology
Nominal deameter |
DN(mm) |
50¡«2000 |
||
Nominal pressuer |
PN(MPa) |
0.05 |
0.25 |
0.6 |
Test pressuerPs(MPa) |
Shell test |
0.075 |
0.375 |
0.9 |
Seal test |
¡Ü1.5£¥Leakage |
|||
Appropriate medium |
Coal gas,Gas containing dust,Flue gas |
|||
Drive modality |
Hand drive,Worm wheel drive,Pneumatic drive,Eectric drive |
|||
Material for main parts
Parts namee |
Material |
Body |
Cast steel,Stainless steel,Cr.Mo.TiSteel and ad hoc material |
Disc |
Cast steel,Stainless steel,Cr.Mo.TiSteel and ad hoc material |
Seal ring |
Same as body of valve |
Stem |
Carbon steel,2Cr13,Stainless steel,Cr.Ni.Mo.Ti steel |
Packing |
Flexible graphite |
Butterfly valve seal material choice and appropriate temperature
Material variety |
Carbon steel |
Sub-zero carbonic steel |
Alloy steel |
ZG00r18Ni10 |
Cr.Mo.Steel |
|
Code name |
WCB |
LCB |
WC6»òWC9 |
C5»òC12 |
¸õ Cr-18ÐÍ¡¢304¡¢31 6 |
12CrMoV |
Resistance highest temperature |
425¡æ |
345¡æ |
595¡æ |
650¡æ |
600¡æ |
560¡æ |
Resistance lowest temperature |
-29¡æ |
-46¡æ |
-29¡æ |
-29¡æ |
-1 96¡æ |
-40¡æ |
Appropriate working temperature |
¡Ü425¡æ |
¡Ü345¡æ |
¡Ü595¡æ |
¡Ü650¡æ |
¡Ü600¡æ |
¡Ü560¡æ |
[NextPage]
D41/341/641/941W-0.5/2.5/6 C£®P£®R£®VHandle,worm wheel,fneumatic,electridcdrive flange type aeration butterfly valve
Nominal diameter |
Structure length(standard) |
External dimension(osult) |
Connection dimension(standard) |
Consult wight |
|||||||||
0.05MPa¡¢0.25MPa |
O£®6MPa |
||||||||||||
mm |
inch |
L |
H |
H1 |
D |
D1 |
D2 |
Z-d |
D |
D1 |
D2 |
Z-d |
|
100 |
4 |
120 |
105 |
219 |
210 |
170 |
144 |
4-18 |
210 |
170 |
144 |
4-18 |
20 |
125 |
5 |
120 |
120 |
234 |
240 |
200 |
174 |
8-18 |
240 |
200 |
174 |
8-18 |
25 |
150 |
6 |
120 |
132 |
247 |
265 |
225 |
199 |
8-18 |
265 |
225 |
199 |
8-18 |
29 |
200 |
8 |
140 |
160 |
403 |
320 |
280 |
254 |
8-18 |
320 |
280 |
254 |
8-18 |
47 |
250 |
10 |
140 |
187 |
433 |
375 |
335 |
309 |
12-18 |
375 |
335 |
309 |
12-18 |
67 |
300 |
12 |
170 |
220 |
465 |
440 |
395 |
363 |
12-22 |
440 |
395 |
363 |
12-22 |
78 |
350 |
14 |
170 |
245 |
539 |
490 |
445 |
413 |
12-22 |
490 |
445 |
413 |
12-22 |
96 |
400 |
16 |
190 |
270 |
543 |
540 |
495 |
463 |
16-22 |
540 |
495 |
463 |
16-22 |
130 |
450 |
18 |
190 |
297 |
571 |
595 |
550 |
518 |
16-22 |
595 |
550 |
518 |
16-22 |
142 |
500 |
20 |
190 |
322 |
644 |
645 |
600 |
568 |
20-22 |
645 |
600 |
568 |
20-22 |
191 |
600 |
24 |
210 |
377 |
701 |
755 |
705 |
667 |
20-26 |
755 |
705 |
667 |
20-26 |
230 |
700 |
28 |
210 |
430 |
753 |
860 |
810 |
772 |
24-26 |
860 |
810 |
772 |
24-26 |
250 |
800 |
32 |
210 |
487 |
807 |
975 |
920 |
878 |
24-30 |
975 |
920 |
878 |
24-30 |
320 |
900 |
36 |
250 |
537 |
973 |
1075 |
1020 |
978 |
24-30 |
1075 |
1020 |
978 |
24-30 |
410 |
1000 |
40 |
250 |
587 |
1023 |
1175 |
1120 |
1078 |
28-30 |
1175 |
1120 |
1078 |
28-30 |
510 |
1200 |
48 |
250 |
687 |
1153 |
1375 |
1320 |
1280 |
32-30 |
1405 |
1340 |
1295 |
32-33 |
720 |
1400 |
56 |
300 |
760 |
1810 |
1575 |
1520 |
1480 |
36-30 |
1630 |
1560 |
1510 |
36-36 |
1270 |
1600 |
64 |
300 |
895 |
1815 |
1790 |
1730 |
1690 |
40-30 |
1830 |
1760 |
1710 |
40-36 |
1730 |
1800 |
72 |
300 |
995 |
1920 |
1990 |
1930 |
1890 |
44-30 |
2045 |
1970 |
1918 |
44-39 |
2750 |
2000 |
80 |
300 |
1095 |
2025 |
2190 |
2130 |
2090 |
48-30 |
2265 |
2180 |
2125 |
48-42 |
3050 |