What manufacturing problems can occur during the production of a GOST Flange?
These Russian standard flanges are robust and sturdy, withstanding high pressure and temperature. As a trusted GOST 33259 flange supplier in UAE, we acquire and stock only premium-grade products suitable for offshore oil refineries, natural gas processing, railroads, and process instrumentation. Using poor raw materials and outdated production techniques is the root of manufacturing problems in this category.
Buyers can encounter cracks, improper sealing (leakage), non-compliance, and dimensional errors when procuring a GOST 12821 flanges from manufacturers with inadequate quality control.
How do I check the mill test certificate of a GOST 33259 flange?
Suppliers of a GOST 33259 flange include the chemical and mechanical properties in the Mill Test Certificate, also called MTC. It lets you trace each production step and verify the quality of the raw materials.
While reading the MTC of GOST 12821 slip on flanges, clients should cross-check the product specifications, like dimensions, quantity, required properties, and compliance with GOST.
What is the pressure class at which a Russian standard flanges can be used?
We can deliver these flanges from DIN15 to DIN1600 for pressure ratings of 600 to 2500 KPA. A Russian standard flanges can comfortably operate at PN6 through PN160. It gets designed to tolerate critical conditions in oil fields, trains, factories, etc.
The pressure rating will also depend on the material and the design. For example, GOST 33259 threaded flanges may not perform as well as weld-neck alternatives.
Table of content
GOST Flange
Size
Class
ASTM
ASME
GOST Standard Flange Specifications
Specifications | GOST Flange |
---|---|
Transportation In | Air & Ocean and Land |
Pressure Class | 600KPA To 2500KPA |
Methods Of Forging | Casting Forging Rolling Cutting |
Use In | Marine & dredging Sanitation Process Instrumentation Oil and Gas Petrochemical/ Refinery/Chemical Power etc. |
Manufacturers Size | NPS 1⁄₂" To NPS 48” |
Supporting Material For Flanges | Gasket/ Ring Joint/ Flanges Bolts |
Manufacturing Productivity | 800 ton per month |
Supply Ability | 500 Ton Per Month |
Brand Name | Schulzmann |
Certificate | ISO |
Schedule | SCH 5S To XXS |
Equipment | Pushing Machine Press machine electric bevelling machine |
Available Packing | Packing In Plywood Box And Plywood Pallet |
Testing | Hydrostatic testing machine Magnetic particle detector Direct-reading Spectrograph UI trasonic flaw detector |
Payment Type | L/C,T/T,D/P,Paypal |
Description | Price In US ($) |
---|---|
DN100 PN16 RATED SUITABLE FOR GOST FLANGES 316L INNER & OUTER RINGS EN 1020 | US $332.20 Per KG |
DN200 PN16 RATED SUITABLE FOR GOST FLANGES 316L INNER & OUTER RINGS EN 1020 | US $1771.66 Per KG |
DN65 PN16 RATED SUITABLE FOR GOST FLANGES 316L INNER & OUTER RINGS EN 10204 | US $278.63 Per KG |
DN50 PN16 RATED SUITABLE FOR GOST FLANGES 316L INNER & OUTER RINGS EN 10204 | US $336.10 Per KG |
Types Of Russian Flange Standards
GOST 12821 Blind Flanges
GOST 12821 Slip On Flanges
GOST 12821 Weld Neck Flanges
Gost Standard Flanges
Gost 33259 Flanges
Gost 12815 Flanges
Gost 12821 Flanges
GOST Blind Flanges
Russian Flanges Standards
Gost 12821-80 Weld Neck Flanges
Gost 12821-80 Pn16 Slip On Flanges
GOST 33259 Threaded Flanges
Conditional passage | (d)1 | (b) | (h)4 | (Dm) | (Dn) | Weight, kg | ||||
connecting ledge (C) | ledge (C) | depression (C) | thorn (C) | groove (C) | ||||||
10 | 8 | 10 | 27 | 22 | 15 | 0,34 | 0,34 | 0,32 | 0,34 | 0,33 |
15 | 12 | 28 | 28 | 19 | 0,40 | 0,40 | 0,38 | 0,40 | 0,40 | |
20 | 18 | 30 | 36 | 26 | 0,53 | 0,53 | 0,50 | 0,53 | 0,52 | |
25 | 25 | 12 | 42 | 33 | 0,76 | 0,77 | 0,72 | 0,75 | 0,75 | |
32 | 31 | 33 | 50 | 39 | 1,10 | 1,08 | 1,04 | 1,08 | 1,08 | |
40 | 38 | 35 | 60 | 46 | 1,36 | 1,37 | 1,28 | 1,30 | 1,34 | |
50 | 49 | 70 | 58 | 1,53 | 1,51 | 1,44 | 1,46 | 1,47 | ||
65 | 66 | 88 | 77 | 1,97 | 2,06 | 1,83 | 1,72 | 1,75 | ||
80 | 78 | 13 | 37 | 102 | 90 | 2,76 | 2,76 | 2,80 | 2,65 | 2,72 |
100 | 96 | 38 | 122 | 110 | 3,35 | 3,04 | 3,03 | 3,03 | 3,04 | |
125 | 121 | 15 | 40 | 148 | 135 | 4,66 | 4,24 | 3,66 | 4,50 | 4,55 |
150 | 146 | 43 | 172 | 161 | 5,37 | 5,85 | 4,93 | 5,29 | 5,35 | |
(175) | 177 | 17 | 47 | 210 | 196 | 7,32 | 8,10 | 6,92 | 7,11 | 7,16 |
200 | 202 | 50 | 235 | 222 | 8,37 | 9,35 | 7,75 | 7,98 | 8,05 | |
(225) | 226 | 260 | 248 | 9,45 | 9,25 | 8,72 | 8,98 | 9,06 | ||
250 | 254 | 18 | 288 | 278 | 10,99 | 10,69 | 10,14 | 12,20 | 12,30 | |
300 | 303 | 340 | 330 | 14,82 | 14,28 | 14,10 | 13,81 | 14,11 | ||
350 | 351 | 390 | 382 | 17,69 | 18,65 | 17,64 | 16,35 | 16,72 | ||
400 | 398 | 440 | 432 | 20,55 | 19,69 | 19,30 | 18,83 | 19,31 | ||
(450) | 450 | 494 | 484 | 23,63 | 23,60 | 21,90 | 21,62 | 22,24 | ||
500 | 501 | 19 | 545 | 535 | 26,63 | 29,10 | 25,90 | 24,44 | 25,10 | |
600 | 602 | 55 | 650 | 636 | 35,79 | 35,60 | 33,40 | 37,49 | 33,67 |
GOST 12821-80 Flange PN1.0MPa Dimensions
Conditional passage | (Dm) | (d1) | (Dn) | (b) | (h4) | Weight, kg | ||||
---|---|---|---|---|---|---|---|---|---|---|
connecting ledge (C) | ledge (C) | depression (C) | thorn (C) | groove (C) | ||||||
10 | 25 | 8 | 15 | 10 | 33 | 0,50 | 0,50 | 0,48 | 0,50 | 0,49 |
15 | 30 | 12 | 19 | 0,58 | 0,58 | 0,54 | 0,57 | 056 | ||
20 | 38 | 18 | 26 | 12 | 36 | 0,87 | 0,87 | 0,81 | 0,87 | 0,83 |
25 | 45 | 25 | 33 | 38 | 1,05 | 1,05 | 0,98 | 1,03 | 1,02 | |
32 | 55 | 31 | 39 | 13 | 40 | 1,54 | 1,53 | 1,45 | 1,50 | 1,49 |
40 | 62 | 38 | 46 | 42 | 1,83 | 1,78 | 1,71 | 1,74 | 1,78 | |
50 | 76 | 49 | 58 | 2,26 | 2,23 | 2,15 | 2,15 | 2,21 | ||
65 | 94 | 66 | 77 | 15 | 45 | 3,17 | 3,11 | 2,92 | 3,06 | 3,14 |
80 | 105 | 78 | 90 | 47 | 3,67 | 3,60 | 3,46 | 3,54 | 3,65 | |
100 | 128 | 96 | 110 | 17 | 48 | 4,70 | 4,70 | 4,49 | 4,50 | 4,54 |
125 | 156 | 121 | 135 | 19 | 57 | 6,71 | 6,58 | 6,27 | 6,12 | 6,23 |
150 | 180 | 146 | 161 | 8,17 | 8,20 | 7,77 | 8,80 | 8,90 | ||
(175) | 210 | 177 | 196 | 9,71 | 9,57 | 9,09 | 9,36 | 9,49 | ||
200 | 240 | 202 | 222 | 58 | 11,35 | 11,00 | 10,47 | 10,28 | 10,32 | |
(225) | 268 | 226 | 248 | 60 | 13,24 | 13,04 | 12,40 | 12,64 | 12,83 | |
250 | 290 | 254 | 278 | 21 | 14,64 | 14,39 | 13,86 | 13,64 | 13,83 | |
300 | 345 | 303 | 330 | 22 | 18,66 | 19,30 | 17,70 | 18,52 | 18,90 | |
350 | 400 | 351 | 382 | 24,00 | 21,70 | 22,56 | 22,70 | 23,00 | ||
400 | 445 | 398 | 432 | 30,00 | 30,35 | 27,65 | 28,00 | 28,50 | ||
(450) | 500 | 450 | 484 | 65 | 33,33 | 34,69 | 31,30 | 31,21 | 31,83 | |
500 | 550 | 501 | 535 | 24 | 39,20 | 40,00 | 37,00 | 36,91 | 37,60 | |
600 | 650 | 602 | 636 | 48,80 | 50,00 | 46,60 | 45,52 | 48,70 | ||
(700) | 744 | 692 | 726 | 25 | 65,26 | 64,70 | 60,50 | 59,86 | 62,28 | |
800 | 850 | 792 | 826 | 27 | 75 | 87,24 | 86,10 | 80,40 | 81,25 | 84,28 |
GOST 12821-80 Flange PN1.6MPa Dimensions
Conditional passage | (h4) | (Dm) | (d1) | (b) | (Dn) | Weight In KG | ||||
---|---|---|---|---|---|---|---|---|---|---|
connecting ledge (C) | ledge (C) | depression (C) | thorn (C) | groove (C) | ||||||
10 | 33 | 26 | 8 | 12 | 15 | 0,59 | 0,60 | 0,58 | 0,59 | 0,58 |
15 | 30 | 12 | 19 | 0,68 | 0,68 | 0,65 | 0,67 | 0,66 | ||
20 | 36 | 28 | 18 | 26 | 0,87 | 0,87 | 0,82 | 0,85 | 0,84 | |
25 | 38 | 45 | 25 | 33 | 1,05 | 1,05 | 0,99 | 1,03 | 1,02 | |
32 | 40 | 55 | 31 | 13 | 39 | 1,54 | 1,54 | 1,48 | 1,50 | 1,50 |
40 | 42 | 64 | 38 | 46 | 1,85 | 1,81 | 1,77 | 1,77 | 1,81 | |
50 | 45 | 76 | 49 | 58 | 2,28 | 2,24 | 2,16 | 2,17 | 2,23 | |
65 | 47 | 94 | 66 | 15 | 77 | 3,19 | 3,17 | 3,05 | 3,06 | 3,14 |
80 | 50 | 110 | 78 | 17 | 90 | 4,21 | 4,15 | 4,04 | 4,06 | 4,17 |
100 | 130 | 96 | 110 | 4,90 | 4,80 | 4,65 | 4,72 | 4,78 | ||
125 | 57 | 156 | 121 | 19 | 135 | 6,75 | 6,76 | 6,47 | 6,55 | 6,66 |
150 | 180 | 146 | 161 | 8,30 | 8,28 | 7,88 | 7,96 | 8,08 | ||
(175) | 210 | 177 | 21 | 196 | 10,37 | 9,79 | 9,32 | 10,05 | 10,17 | |
200 | 58 | 240 | 202 | 222 | 11,79 | 11,72 | 11,28 | 11,04 | 11,20 | |
(225) | 65 | 268 | 226 | 248 | 14,12 | 14,48 | 13,55 | 13,60 | 13,70 | |
250 | 292 | 254 | 23 | 278 | 17,36 | 15,00 | 14,30 | 16,67 | 16,86 | |
300 | 66 | 346 | 303 | 24 | 330 | 22,76 | 22,65 | 20,83 | 21,60 | 22,10 |
350 | 70 | 400 | 351 | 28 | 382 | 32,04 | 32,00 | 29,43 | 30,60 | 33,10 |
400 | 75 | 450 | 398 | 32 | 432 | 43,00 | 42,64 | 41,10 | 41,00 | 41,70 |
(450) | 85 | 506 | 450 | 34 | 484 | 54,00 | 53,50 | 52,20 | 51,40 | 52,40 |
500 | 90 | 559 | 501 | 38 | 535 | 70,97 | 70,32 | 69,00 | 68,00 | 69,90 |
600 | 660 | 602 | 41 | 636 | 99,30 | 97,81 | 96,73 | 94,50 | 96,60 | |
(700) | 95 | 750 | 692 | 43 | 726 | 105,90 | 105,97 | 102,00 | 100,70 | 101,10 |
800 | 850 | 792 | 45 | 826 | 130,57 | 118,79 | 115,00 | 124,80 | 127,6 |
GOST 12820 PN16 Flat Flange Dimensions
Dn) in Millimeter | (D) in Millimeter | (D1) in Millimeter | (dв) in Millimeter | (b) in Millimeter | (d) in Millimeter | (n-¢) | Weight As Per KG |
15 | 95 | 65 | 19 | 12 | 14 | 4 | 0,61 |
20 | 105 | 75 | 26 | 14 | 14 | 4 | 0,86 |
25 | 115 | 85 | 33 | 16 | 14 | 4 | 1,17 |
32 | 135 | 100 | 39 | 16 | 18 | 4 | 1,58 |
40 | 145 | 110 | 46 | 17 | 18 | 4 | 1,96 |
50 | 160 | 125 | 59 | 19 | 18 | 4 | 2,58 |
65 | 180 | 145 | 78 | 21 | 18 | 4 | 3,42 |
80 | 195 | 160 | 91 | 21 | 18 | 4 | 3,71 |
100 | 215 | 180 | 110 | 23 | 18 | 8 | 4,73 |
125 | 245 | 210 | 135 | 25 | 18 | 8 | 6,38 |
150 | 280 | 240 | 161 | 25 | 22 | 8 | 7,81 |
200 | 335 | 295 | 222 | 27 | 22 | 12 | 10,10 |
250 | 405 | 355 | 273 | 28 | 26 | 12 | 14,49 |
300 | 460 | 410 | 325 | 28 | 26 | 12 | 17,78 |
350 | 520 | 470 | 377 | 30 | 26 | 16 | 22,88 |
400 | 580 | 525 | 426 | 34 | 30 | 16 | 31,00 |
500 | 710 | 650 | 530 | 44 | 33 | 20 | 57,01 |
600 | 840 | 770 | 630 | 45 | 39 | 20 | 80,03 |
800 | 1 020 | 950 | 820 | 49 | 39 | 24 | 104,41 |
1000 | 1255 | 1170 | 1 020 | 58 | 45 | 28 | 179,37 |
1200 | 1485 | 1390 | 1220 | 71 | 52 | 32 | 297,78 |
GOST 12836 PN16 Blind Flange Dimensions
Normal Pipe Size | Weight In Kilogram | (D) | (D1) | Number Of Holes | (H) | (D4) | (b) | (D3) | (D2) | (h1) |
15 | 95 | 65 | 45 | 12 | 10 | 14 | 2 | 2 | 4 | 0.43 |
20 | 105 | 75 | 58 | 12 | 16 | 14 | 2 | 2 | 4 | 0.55 |
25 | 115 | 85 | 68 | 12 | 22 | 14 | 2 | 2 | 4 | 0.67 |
32 | 135 | 100 | 78 | 12 | 28 | 18 | 2 | 2 | 4 | 0.91 |
40 | 145 | 110 | 88 | 14 | 36 | 18 | 3 | 2 | 4 | 1.24 |
50 | 160 | 125 | 102 | 14 | 46 | 18 | 3 | 2 | 4 | 1.55 |
65 | 180 | 145 | 122 | 14 | 60 | 18 | 3 | 2 | 4 | 2.04 |
80 | 195 | 160 | 138 | 14 | 76 | 18 | 3 | 2 | 4 | 2.44 |
100 | 215 | 180 | 158 | 16 | 94 | 18 | 3 | 2 | 8 | 3.51 |
125 | 245 | 210 | 188 | 16 | 118 | 18 | 3 | 2 | 8 | 4.69 |
150 | 280 | 240 | 212 | 18 | 142 | 23 | 3 | 2 | 8 | 6.99 |
200 | 335 | 295 | 268 | 20 | 196 | 23 | 3 | 2 | 12 | 11.49 |
250 | 390 | 355 | 320 | 24 | 244 | 27 | 3 | 2 | 12 | 19.74 |
300 | 405 | 410 | 378 | 28 | 294 | 27 | 4 | 3 | 12 | 29.58 |
350 | 460 | 470 | 438 | 32 | 344 | 27 | 4 | 3 | 16 | 44.22 |
400 | 520 | 525 | 490 | 34 | 390 | 30 | 4 | 3 | 16 | 59.86 |
500 | 580 | 650 | 610 | 40 | 490 | 33 | 4 | 3 | 20 | 102.69 |
600 | 710 | 770 | 720 | 45 | 590 | 40 | 5 | 4 | 20 | 161.98 |
800 | 840 | 950 | 900 | 52 | 780 | 40 | 5 | 4 | 24 | 300.6 |
1000 | 1020 | 1170 | 1110 | 63 | 980 | 46 | 5 | 4 | 28 | 542.16 |
1200 | 1485 | 1390 | 1325 | 75 | 1180 | 52 | 5 | 4 | 32 | 922.18 |
Dia. conditional (DN), in (MM) | Outer Diameter Of (D), in (MM) | Dia. of spacing (D0), in (MM) | Dia. internal (dB), in (MM) | Flanges WT (b), in (MM) | fastener Size (d0), in (MM) | mounting holes No. (n), pcs | Weight of one flanges, KG |
---|---|---|---|---|---|---|---|
15 | 80/95 | 55/65 | nineteen | 10/10 | 11/14 | 4/4 | 0.3 / 0.5 |
20 | 90/105 | 65/76 | nineteen | 12/12 | 11/14 | 4/4 | 0.5 / 0.7 |
25 | 100/115 | 75/85 | nineteen | 12/12 | 11/14 | 4/4 | 0.6 / 0.9 |
32 | 120/135 | 90/100 | 39 | 13/14 | 14/18 | 4/4 | 1.1 / 1.4 |
40 | 130/145 | 100/110 | 46 | 13/15 | 14/18 | 4/4 | 1.2 / 2 |
50 | 140/160 | 110/125 | 59 | 13/15 | 14/18 | 4/4 | 1.3 / 2.1 |
65 | 160/180 | 130/145 | 78 | 13/17 | 14/18 | 4/4 | 1.6 / 2.8 |
80 | 180/195 | 150/160 | 91 | 15/17 | 18/18 | 4/4 | 2.4 / 3.2 |
100 | 205/215 | 170/180 | 110 | 15/19 | 18/18 | 4/8 | 2.8 / 4 |
125 | 235/245 | 200/210 | 135 | 17/21 | 18/18 | 8/8 | 3.8 / 5.4 |
150 | 260/280 | 225/240 | 161 | 17/21 | 18/22 | 8/8 | 4.4 / 6.6 |
200 | 315/335 | 280/295 | 222 | 19/21 | 18/22 | 8/8 | 5.9 / 8 |
250 | 370/390 | 335/350 | 273 | 20/23 | 18/22 | 12/12 | 7.6 / 10 |
300 | 435/440 | 395/400 | 325 | 20/24 | 22/22 | 12/12 | 10.2 / 13 |
350 | 485/500 | 445/460 | 377 | 22/24 | 22/22 | 12/16 | 12.6 / 16 |
400 | 535/565 | 495/515 | 426 | 24/26 | 22/26 | 16/16 | 15.2 / 21 |
500 | 640/670 | 600/620 | 530 | 25/28 | 22/26 | 16/20 | 19/28 |
600 | 755/780 | 705/725 | 630 | 25/31 | 26/30 | 20/20 | 26/40 |
800 | 975/1010 | 920/950 | 820 | 27/37 | 30/33 | 24/24 | 46/79 |
1000 | 1175/1220 | 1120/1160 | 1020 | 31/43 | 30/33 | 28/28 | 64/118 |
What is the hardness of a GOST 12821 flanges?
This flanges typically uses stainless steel material and showcases excellent strength. The hardness of a GOST 12821 flanges will depend on the exact material grade. For instance, it stands at 95 on Rockwell B for stainless steel 316.
Can GOST 12821 blind flanges be used in high-temperature applications?
High pressures and temperatures are not a concern for GOST 12821 blind flanges. Based on the stainless steel grade employed for production, they tolerate a minimum of 425°C at prolonged exposure.
What is the impact of coating on the price of a GOST standard flanges?
These products stand out for their tolerance against oxidation and corrosion. These desirable traits of a GOST standard flanges get enhanced by anti-rusting paint, black paint, or zinc plating.
Additional processing increases the final costs of a GOST 12821 PN6 welding neck flanges.