Dual Flap Butterfly Check Valve
SPECIFICATION DN：DN50-DN1000 PN： PN10/PN16 Design standard：BS5155/GB12238 Face to face length：BS5155/BS EN558-1/GB12221 Endflange：BS4504/BS EN1092-2/ GB/T17241.6 Test：BS EN1074-2 GB/T13927 Application Temps：≤80℃ |  |
No. | Part Name | Material |
1 | Body | Gray Iron, Ductile Iron, Carbon Steel |
2 | Disc | Gray Iron, Ductile Iron, Carbon Steel |
3 | Stem | Carbon Steel,Stainless Steel |
4 | Seal ring | EPDM,NBR,PTFE,Stainless Steel |
5 | Spring | Stainless Steel |
6 | Coating | Epoxy |
规格DIMENSIONS（PN10） | |||
DN | L | D | n-d |
50 | 43 | 107 | 4×Ф18 |
65 | 46 | 127 | 4×Ф18 |
80 | 64 | 142 | 8×Ф18 |
100 | 64 | 162 | 8×Ф18 |
125 | 70 | 192 | 8×Ф18 |
150 | 76 | 218 | 8×Ф22 |
200 | 89 | 273 | 8×Ф22 |
250 | 114 | 328 | 12×Ф22 |
300 | 114 | 378 | 12×Ф22 |
350 | 127 | 438 | 16×Ф22 |
400 | 140 | 489 | 16×Ф26 |
450 | 152 | 539 | 20×Ф26 |
500 | 152 | 594 | 20×Ф26 |
600 | 178 | 699 | 20×Ф26 |
规格DIMENSIONS（PN16） | |||
DN | L | D | n-d |
50 | 43 | 107 | 4×Ф18 |
65 | 46 | 127 | 4×Ф18 |
80 | 64 | 142 | 8×Ф18 |
100 | 64 | 162 | 8×Ф18 |
125 | 70 | 192 | 8×Ф18 |
150 | 76 | 218 | 8×Ф22 |
200 | 89 | 273 | 12×Ф22 |
250 | 114 | 329 | 12×Ф26 |
300 | 114 | 384 | 12×Ф26 |
350 | 127 | 444 | 16×Ф26 |
400 | 140 | 495 | 16×Ф30 |
450 | 152 | 555 | 20×Ф30 |
500 | 152 | 617 | 20×Ф33 |
600 | 178 | 734 | 20×Ф36 |