Double eccentric PTFE hard seal butterfly is used for pipe lines to regulate or cut off medium in petroleum, chemical, food, pharmacy, metallurgy, etc. It is applicable for corrosive or non corrosive gas, fluid, semifluid and solid powder. It can be installed in any position.
Dimensions
Nominal Diameter |
Dimensions (mm) |
||||||
L |
1.0MPa |
1.6MPa |
|||||
D |
D1 |
Z-Φd |
D |
D1 |
Z-Φd |
||
50 |
108 |
165 |
125 |
4-18 |
165 |
125 |
4-18 |
65 |
112 |
185 |
145 |
4-18 |
185 |
145 |
4-18 |
80 |
114 |
200 |
160 |
8-18 |
200 |
160 |
8-18 |
100 |
127 |
220 |
180 |
8-18 |
220 |
180 |
8-18 |
125 |
140 |
250 |
210 |
8-18 |
250 |
210 |
8-18 |
150 |
140 |
285 |
240 |
8-22 |
285 |
240 |
8-22 |
200 |
152 |
340 |
295 |
8-22 |
340 |
295 |
12-22 |
250 |
165 |
395 |
350 |
12-22 |
405 |
355 |
12-26 |
300 |
178 |
445 |
400 |
12-22 |
460 |
410 |
12-26 |
350 |
190 |
505 |
460 |
16-22 |
520 |
470 |
16-26 |
400 |
216 |
565 |
515 |
16-26 |
580 |
525 |
16-30 |
450 |
222 |
615 |
565 |
20-26 |
640 |
585 |
20-30 |
500 |
229 |
670 |
620 |
20-26 |
710 |
650 |
20-33 |
600 |
267 |
780 |
725 |
20-30 |
840 |
770 |
20-36 |
700 |
292 |
895 |
840 |
24-30 |
910 |
840 |
24-36 |
800 |
318 |
1015 |
950 |
24-33 |
1025 |
950 |
24-39 |
Source: https://www.chinavalvesflange.com/double-eccentric-ptfe-hard-seal-butterfly-valve.html