Stainless steel triple eccentric flange butterfly valve (pneumatic)
Pressure range:CLASS150~CLASS600 (PN6~PN16)
Nominal diameter:NPS2"~120"(DN50~DN3000)
Body material:Carbon steel, Stainless steel, Duplex stainless steel, Alloy steel, Ductile iron
End connection:Flange
Temperature range: -40℃~120℃
Drive type:Pneumatic device
Design standard:API 609,AWWA C504,GB/T12238,GB/T13927
Product structure characteristics
The triple eccentric butterfly valve changes the positive cone angle to an oblique cone angle by rotating it by one angle, so that the eccentricity between the valve stem and the center of the valve body is reduced, and the opening torque is also reduced accordingly. Widely used in industrial pipelines such as metallurgy, electricity, petrochemicals, water supply and drainage, and municipal construction, for regulating flow rates and carrying fluids.
Its main structural features include
1. There is no friction between the butterfly plate and the sealing surface for opening and closing, and forced sealing is required;
2. Can be installed in any position;
3. Zero leakage structural design;
4. Can choose between metal and non-metal, metal and metal sealing methods;
5. There are one-way and two-way valves for customers to choose from;
6. Dynamic load type packing can be selected;
7. Low leakage fillers can be selected to meet the requirements of ISO 15848;
8. The valve stem can be extended in design;
9. We can design low-temperature valves or ultra-low-temperature valves according to customer requirements.
Main external connection dimensions
Nominal diameter |
Length |
Dimensions(Reference)
|
Connection size (standard value) |
WT |
|||||||||||||||
0.6MPa |
1.0MPa |
1.6MPa |
|||||||||||||||||
mm |
in |
L |
C |
B |
A |
D |
D1 |
D2 |
D3 |
n-d |
D1 |
D2 |
D3 |
n-d |
D1 |
D2 |
D3 |
n-d |
|
50 |
2 |
108 |
82.5 |
338 |
180 |
65 |
140 |
110 |
88 |
4-14 |
165 |
125 |
99 |
4-18 |
165 |
125 |
99 |
4-18 |
14 |
65 |
2-1/2 |
112 |
92.5 |
358 |
180 |
65 |
160 |
130 |
108 |
4-14 |
185 |
145 |
118 |
4-18 |
185 |
145 |
118 |
4-18 |
16 |
80 |
3 |
114 |
100 |
413 |
245 |
72 |
190 |
150 |
124 |
4-18 |
200 |
160 |
132 |
8-18 |
200 |
160 |
132 |
8-18 |
17 |
100 |
4 |
127 |
110 |
428 |
240 |
72 |
210 |
170 |
144 |
4-18 |
220 |
180 |
156 |
8-18 |
220 |
180 |
156 |
8-18 |
21 |
125 |
5 |
140 |
125 |
444 |
240 |
72 |
240 |
200 |
174 |
8-18 |
250 |
210 |
184 |
8-18 |
250 |
210 |
184 |
8-18 |
27 |
150 |
6 |
140 |
142.5 |
553 |
350 |
93 |
265 |
225 |
199 |
8-18 |
285 |
240 |
211 |
8-22 |
285 |
240 |
211 |
8-22 |
29 |
200 |
8 |
152 |
170 |
678 |
350 |
93 |
320 |
280 |
254 |
8-18 |
340 |
295 |
266 |
8-22 |
340 |
295 |
266 |
12-22 |
50 |
250 |
10 |
250 |
197.5 |
742 |
550 |
350 |
375 |
335 |
309 |
12-18 |
395 |
350 |
319 |
12-22 |
405 |
355 |
319 |
12-26 |
69 |
300 |
12 |
270 |
222.5 |
803 |
600 |
350 |
440 |
395 |
363 |
12-22 |
445 |
400 |
370 |
12-22 |
460 |
410 |
370 |
12-26 |
91 |
350 |
14 |
290 |
252.5 |
866 |
600 |
350 |
490 |
445 |
413 |
12-22 |
505 |
460 |
429 |
16-22 |
520 |
470 |
429 |
16-26 |
110 |
400 |
16 |
310 |
282.5 |
940 |
600 |
350 |
540 |
495 |
463 |
16-22 |
565 |
515 |
480 |
16-26 |
580 |
525 |
480 |
16-30 |
138 |
450 |
18 |
330 |
307.5 |
995 |
750 |
380 |
595 |
550 |
518 |
16-22 |
615 |
565 |
530 |
20-26 |
640 |
585 |
548 |
20-30 |
175 |
500 |
20 |
350 |
335 |
1058 |
750 |
380 |
645 |
600 |
568 |
20-22 |
670 |
620 |
582 |
20-26 |
715 |
650 |
609 |
20-33 |
210 |
600 |
24 |
390 |
390 |
1163 |
750 |
380 |
755 |
705 |
667 |
20-26 |
780 |
725 |
682 |
20-30 |
840 |
770 |
720 |
20-36 |
275 |
700 |
28 |
430 |
447.5 |
1283 |
750 |
380 |
860 |
810 |
772 |
24-26 |
895 |
840 |
794 |
24-30 |
910 |
840 |
794 |
24-36 |
530 |
800 |
32 |
470 |
507.5 |
1398 |
750 |
380 |
975 |
920 |
878 |
24-30 |
1015 |
950 |
901 |
24-33 |
1025 |
950 |
901 |
24-39 |
590 |
900 |
36 |
510 |
557.5 |
1498 |
1250 |
380 |
1075 |
1020 |
978 |
24-30 |
1115 |
1050 |
1001 |
28-33 |
1125 |
1050 |
1001 |
28-39 |
1400 |
1000 |
40 |
550 |
615 |
1608 |
1500 |
580 |
1175 |
1120 |
1078 |
28-30 |
1230 |
1160 |
1112 |
28-36 |
1255 |
1170 |
1112 |
28-42 |
1650 |
1200 |
48 |
630 |
727.5 |
1876 |
1500 |
580 |
1405 |
1340 |
1295 |
32-33 |
1455 |
1380 |
1328 |
32-39 |
1485 |
1390 |
1328 |
32-48 |
2140 |