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High strength of the flange agency

Basic Info

Model No.: Gost 12820-80/12821-80 flange

Product Description

Specifications 1.High strength of the flange agency;

2.ISO9001&14001approved;

3.delivery timely

4.Casting flanges

5.high credibilit

OUR REQUIRED DIMENSIONS(ACCORDING GOST)
PN DN Mounting dimension OD(outside diameter of the pipe),mm(dH) Diameter of the raised face,D2 Bolts Thickness GOST Weight kg/pc
Ouioide diameter,mm,D Bolts holes axis diameter(centers of the opposite holes),mm D1 Inside diameter,mm(d) Number of bolts'holes,n Diameter of bolts'holes,mm(d) flange ridge's height,rnm(h) Total thickness(toghether with ridge's height)mm(h+b) Thickness(without ridge's heighe),mm(b)
2.5 20 90 65 26 25 50 4 11 2 14 12 0.58
25 100 75 33 32 60 4 11 2 14 12 0.64
32 120 90 39 38 70 4 14 2 15 13 1.01
40 130 100 46 45 80 4 14 3 16 13 1.21
50 140 110 59 57 90 4 14 3 16 13 1.33
65 160 130 78 76 100 4 14 3 18 15 1.63
80 185 150 91 89 128 4 18 3 18 15 2.44
100 205 170 110 108 148 4 18 3 18 15 2.85
125 235 200 135 133 178 8 18 3 20 17 3.88
150 260 225 161 159 202 8 18 3 20 17 4.39
200 315 280 222 219 258 8 18 3 22 19 5.89
250 370 335 273 273 312 12 18 3 23 20 7.67
300 435 395 325 325 365 12 22 4 24 20 10.28
350 485 445 377 377 415 12 22 4 26 22 12.58
400 535 495 426 426 465 16 22 4 28 24 15.2
500 640 600 530 530 270 16 22 4 29 25 19.72
600 735 705 630 630 670 20 26 5 30 25 26.24
800 975 920 820 820 880 24 30 5 32 27 46.14
 

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