Structural features
Our company's butt-welded two-way pressure butterfly valve not only adopts the conventional three-eccentric structure, but also combines the movable seat principle of the fixed ball valve, which more effectively guarantees the sealing performance when the reverse pressure is bearing, and truly achieves 100% two-way pressure.
Standards & Specifications
Design standard: GB/T 12238 JB/T 8527
Structure length: GB/T 12221
Flange connection size: GB/T 12224
Inspection and test: GB/T 26480
Main component materials
|
Valve body |
WCB,CF8,CF8M,316,316L |
|
Butterfly plates |
Q235A,WCB,CF8,CF8M,316,316L |
|
Seals |
304, 316 or 201+ Wear Resistant Cardboard, PTFE, RPTFE |
|
Stem |
2Cr13,304,316 |
|
stuffing |
Flexible graphite |
Connection Size (mm)
|
Nominal DN |
L |
H1 |
H2 |
A |
B |
|
50 |
150 |
70 |
240 |
60 |
49 |
|
65 |
170 |
80 |
250 |
76 |
63 |
|
80 |
180 |
85 |
260 |
90 |
78 |
|
100 |
190 |
110 |
280 |
114 |
102 |
|
125 |
200 |
120 |
300 |
140 |
128 |
|
150 |
210 |
140 |
320 |
168 |
154 |
|
200 |
230 |
150 |
370 |
219 |
203 |
|
250 |
250 |
185 |
400 |
273 |
255 |
|
300 |
270 |
220 |
430 |
325 |
305 |
|
350 |
290 |
250 |
455 |
377 |
354 |
|
400 |
310 |
270 |
500 |
426 |
398 |
|
450 |
330 |
300 |
540 |
480 |
456 |
|
500 |
350 |
325 |
590 |
530 |
502 |
|
600 |
390 |
380 |
660 |
630 |
591 |
|
700 |
430 |
435 |
720 |
720 |
695 |
|
800 |
470 |
485 |
790 |
820 |
797 |
|
900 |
510 |
540 |
850 |
920 |
899 |
|
1000 |
550 |
590 |
900 |
1022 |
998 |
