API 609 Triple Eccentric Butterfly Valve – Wafer / Lug, Metal Seated, Cast Steel / Stainless, Class 150-600, Oil & Gas
Wafer Butterfly Valve is a thin structure, clamp mounted rotary valve that rotates 90 ° in the valve body by driving the butterfly plate (disc-shaped valve core) through the valve stem, achieving rapid connection, disconnection, or throttling control of pipeline fluid. Its core advantages are small size, light weight, easy installation, low flow resistance, and adaptability to medium and low pressure, large-diameter working conditions. It is widely used in industrial and municipal pipeline systems and is a cost-effective universal fluid control equipment.
Size Range: 2” ~ 24”
Pressure Range: 150lb ~ 300lb
Materials:WCB 、WC6 、WC9 、CF8、 CF8M、 CF3、 CF3M 、CN7M、LC1LC2、LC3、LCB、LCC、Monel、20# Alloys、4A、5A、C95800、C95500, ect.
Face to Face Dimensions: ANSI B16.10
Flange end Dimension :ANSI B16.5
Butt Welded Dimensions:ANSI B16.25
Design and Manufacture:API 609
Pressure Test:API598
Phone: +86-577-86910577
Address: Building 1, No. 896 Jinhai 1st Road, Airport New Area, Wenzhou Bay New District, Wenzhou, Zhejiang, China
Class150 API 609 Butterfly Valves

| NPS |
in |
2 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
| d |
mm |
51 |
76 |
102 |
152 |
203 |
254 |
305 |
337 |
387 |
438 |
489 |
591 |
| L(RF) |
mm |
43 |
48 |
54 |
57 |
64 |
71 |
81 |
92 |
102 |
114 |
127 |
154 |
| d1 |
mm |
92 |
127 |
157 |
216 |
270 |
324 |
381 |
413 |
470 |
533 |
584 |
692 |
| d2 |
mm |
120.5 |
152.5 |
190.5 |
241.5 |
298.5 |
362 |
432 |
476 |
540 |
578 |
635 |
749.5 |
| D |
mm |
152 |
190 |
229 |
279 |
343 |
406 |
483 |
533 |
597 |
635 |
699 |
813 |
| b |
mm |
16 |
19 |
24 |
26 |
29 |
31 |
32 |
35 |
37 |
40 |
43 |
48 |
| n-Фd |
mm |
4-19 |
4-19 |
8-19 |
8-22 |
8-22 |
12-25 |
12-25 |
12-29 |
16-29 |
16-32 |
20-32 |
20-35 |
| H |
mm |
225 |
255 |
285 |
332 |
386 |
427 |
498 |
510 |
540 |
585 |
642 |
693 |
| H1 |
mm |
112 |
126 |
146 |
170 |
218 |
245 |
290 |
316 |
352 |
386 |
415 |
482 |
Class300 API 609 Butterfly Valves

| NPS |
in |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
| d |
mm |
76 |
102 |
152 |
203 |
254 |
305 |
337 |
387 |
432 |
483 |
584 |
| L(RF) |
mm |
48 |
54 |
59 |
73 |
83 |
92 |
117 |
133 |
149 |
159 |
181 |
| d1 |
mm |
127 |
157 |
216 |
270 |
324 |
381 |
413 |
470 |
533 |
584 |
692 |
| d2 |
mm |
168.5 |
200 |
270 |
330 |
387.5 |
451 |
514.5 |
571.5 |
628.5 |
686 |
813 |
| D |
mm |
210 |
254 |
318 |
381 |
445 |
521 |
584 |
648 |
711 |
775 |
914 |
| b |
mm |
29 |
32 |
37 |
42 |
48 |
51 |
54 |
58 |
61 |
64 |
70 |
| n-Фd |
mm |
8-22 |
8-22 |
12-22 |
12-25 |
16-29 |
16-32 |
20-32 |
20-35 |
24-35 |
24-35 |
24-41 |
| H |
mm |
265 |
290 |
355 |
418 |
456 |
498 |
547 |
582 |
651 |
704 |
780 |
| H1 |
mm |
130 |
150 |
185 |
236 |
273 |
313 |
338 |
392 |
420 |
465 |
532 |