marine center type flanged butterfly valve
technical parameter
nominal diameter: dn50~dn500
nominal pressure: pn1.0-1.6mpa, 5k-16k, 150lb
body material: cast steel, bronze, stainless steel, ductile iron
applicable medium: seawater, fresh water, air, crude oil, refined oil
body type: af type, bf type, cf type, df type, qf type, yf type
working temperature: -40°c~170°c
connection form: flange
drive type: handle type, worm gear type, spiral type, hydraulic type
main external connection dimensions
nominal pressure(mpa) | nominal diameter(mm) | center-pivoted flanged butterfly valve | ||||||||||||||
af type | cf type | df type | qf type | yf type | ||||||||||||
h | h1 | l1 | h | h1 | l1 | h | h1 | l1 | h | h1 | l1 | h | h1 | l1 | ||
1.0 | 50 | 215 | 80 | 235 | 280 | 80 | 160 | 600 | 80 | 200 | 265 | 80 | 75 | 325 | 80 | 156 |
65 | 235 | 90 | 235 | 295 | 90 | 160 | 615 | 90 | 200 | 348 | 90 | 75 | 345 | 90 | 156 | |
80 | 285 | 120 | 235 | 340 | 120 | 160 | 680 | 120 | 250 | 430 | 120 | 75 | 365 | 120 | 156 | |
100 | 315 | 130 | 250 | 360 | 130 | 160 | 700 | 130 | 250 | 475 | 130 | 105 | 405 | 130 | 156 | |
125 | 355 | 150 | 300 | 395 | 150 | 160 | 738 | 150 | 300 | 510 | 150 | 105 | 485 | 150 | 156 | |
150 | 395 | 165 | 350 | 430 | 165 | 180 | 780 | 165 | 300 | 615 | 165 | 105 | 509 | 165 | 156 | |
200 | 485 | 196 | 180 | 845 | 195 | 350 | 670 | 195 | 105 | 622 | 195 | 242 | ||||
250 | 570 | 225 | 210 | 940 | 225 | 350 | 775 | 225 | 120 | 698 | 225 | 242 | ||||
300 | 630 | 250 | 210 | 995 | 250 | 400 | 830 | 250 | 120 | 794 | 250 | 305 | ||||
350 | 730 | 280 | 275 | 1058 | 280 | 400 | 930 | 280 | 140 | 860 | 280 | 305 | ||||
400 | 800 | 310 | 275 | 1118 | 310 | 400 | 1000 | 310 | 140 | 908 | 310 | 325 | ||||
450 | 875 | 344 | 275 | 1218 | 344 | 275 | 1050 | 395 | 340 | 995 | 344 | 305 | ||||
500 | 960 | 382 | 350 | 1288 | 382 | 350 | 1160 | 405 | 380 | 1011 | 382 | 305 | ||||
nominal pressure (mpa) | nominal diameter (mm) | structure&flange dimension (iso standard) | |||||
d0 | l | d | d1 | n | m | ||
1.0 | 50 | 160 | 43 | 165 | 125 | 4 | m16 |
65 | 160 | 46 | 185 | 145 | 4 | m16 | |
80 | 160 | 46 | 200 | 160 | 8 | m16 | |
100 | 160 | 52 | 220 | 180 | 8 | m16 | |
125 | 160 | 56 | 250 | 210 | 8 | m16 | |
150 | 220 | 56 | 285 | 240 | 8 | m20 | |
200 | 220 | 60 | 340 | 295 | 8 | m20 | |
250 | 300 | 68 | 395 | 350 | 12 | m20 | |
300 | 300 | 78 | 445 | 400 | 12 | m20 | |
350 | 380 | 78 | 505 | 460 | 16 | m20 | |
400 | 380 | 102 | 565 | 515 | 16 | m24 | |
450 | 380 | 114 | 615 | 565 | 20 | m24 | |
500 | 380 | 127 | 670 | 620 | 20 | m24 | |