INDUSTRIAL VALVES & FLOW CONTROL TECHNICAL DATA
MODEL SG-041-2
Double-Flanged Double-Eccentric Butterfly Valve
Product enquiry
01
CONSTRUCTION
Materials / Main Components
| No. | Part Name | Material |
|---|---|---|
| 1 | Hex bolt | Carbon Steel/SS304/SS316 |
| 2 | Cover | Ductile iron/CS/SS |
| 3 | O ring | EPDM/NBR |
| 4 | Bushing | SS410 |
| 5 | Body | Ductile iron/CS/SS |
| 6 | Body sealing face | SS304/SS316 |
| 7 | Disc sealing face | EPDM/NBR |
| 8 | Hex bolt | Carbon Steel/SS304/SS316 |
| 9 | Gasket | Carbon Steel/SS304/SS316 |
| 10 | Disc | Ductile iron/CS/SS |
| 11 | Lower stem | Carbon Steel/SS410/SS304/SS316 |
| 12 | Upper stem | Carbon Steel/SS410/SS304/SS316 |
| 13 | Pin | SS410/SS304/SS316 |
| 14 | Packing ring | Carbon Steel |
| 15 | O ring | EPDM/NBR |
| 16 | Packing gland | Ductile iron/CS/SS |
| 17 | Hex bolt | Carbon Steel/SS304/SS316 |
| 18 | Spring washer | Carbon Steel/SS304/SS316 |
| 19 | Worm gear | Ductile iron/CS |
02
RATING & STANDARDS
Main Technical Parameters
- Nominal pressure
- PN10/PN16/PN25/PN40Catalogue-listed classes; pressure, size and material combinations require confirmation. Refer separately to the maximum-pressure conditions.
- Face to face standard
- GB/T12221-2005
- Flange connection standard
- GB/T17241.6, GB/T9113-2010, EN1092-2, GB/T9113-2000
- Test standard
- GB/T13927-2008, API598
- Applicable media
- Water, oil, gas, etc
03
SECTIONAL ILLUSTRATIONS
Sectional Illustrations

04
OPERATING LIMITS
Pressure Conditions
Listed operating and test pressures depend on the selected configuration. Confirm the applicable values and service conditions against the approved product submittal before selection.
| Size | Max Pressure (bar) | Min/Max Temperature (C) | Test Pressure (bar) / Shell | Test Pressure (bar) / Seat |
|---|---|---|---|---|
| DN40-DN600 | 10.0/16.0 | -10°C+100°C | 15.0/24.0 | 11.0/17.6 |
05
DIMENSIONAL DATA
Dimensions
Scroll horizontally to view all dimensions.
Units: mm
The unconfirmed DN1200 face-to-face length is marked for confirmation. Other values retain the source table headings; the illustration is not a certified dimensional drawing.
| DN(mm) & INCH | L | H1 | H2 | EN1092-2 / PN10/16 / D | EN1092-2 / PN10/16 / K | EN1092-2 / PN10/16 / n-Phi d | EN1092-2 / PN25 / D | EN1092-2 / PN25 / K | EN1092-2 / PN25 / n-Phi d |
|---|---|---|---|---|---|---|---|---|---|
| 50(2") | 108 | 82.5 | 308 | 165 | 125 | 4-19 | 165 | 125 | 4-19 |
| 65(2½") | 112 | 92.5 | 321 | 185 | 145 | 4-19 | 185 | 145 | 4-19 |
| 80(3") | 114 | 100 | 346 | 200 | 160 | 8-19 | 200 | 160 | 8-19 |
| 100(4") | 127 | 110 | 387 | 220 | 180 | 8-19 | 235 | 190 | 8-23 |
| 125(5") | 140 | 125 | 411 | 250 | 210 | 8-19 | 270 | 220 | 8-28 |
| 150(6") | 140 | 142.5 | 447 | 285 | 240 | 8-23 | 300 | 250 | 8-28 |
| 200(8") | 152 | 170 | 607 | 340 | 295 | 8-23/12-23 | 360 | 310 | 12-28 |
| 250(10") | 165 | 192.5 | 688 | 395/405 | 350/355 | 12-23/12-27 | 425 | 370 | 12-31 |
| 300(12") | 178 | 222.5 | 724 | 445/460 | 400/410 | 12-23/12-27 | 485 | 430 | 16-31 |
| 350(14") | 190 | 252.5 | 979 | 505/520 | 460/470 | 16-23/16-31 | 555 | 490 | 16-34 |
| 400(16") | 216 | 282.5 | 930 | 565/580 | 515/525 | 16-28/16-31 | 620 | 550 | 16-37 |
| 450(18") | 222 | 307.5 | 975 | 615/640 | 565/585 | 20-28/20-31 | 670 | 600 | 20-37 |
| 500(20") | 229 | 335 | 1065 | 670/715 | 620/650 | 20-28/20-34 | 730 | 660 | 20-37 |
| 600(24") | 287 | 390 | 1225 | 780/840 | 725/770 | 20-31/20-37 | 845 | 770 | 20-41 |
| 700(28") | 292 | 447.5 | 1343 | 895/910 | 840 | 24-31/24-37 | |||
| 800(32") | 318 | 507.5 | 1438 | 1015/1025 | 950 | 24-34/24-41 | |||
| 900(36") | 330 | 557.7 | 1616 | 1115/1125 | 1050 | 28-34/28-41 | |||
| 1000(40") | 410 | 615 | 1711 | 1230/1255 | 1160/1170 | 28-37/28-44 | |||
| 1200(48") | Not specified — confirm | 727.5 | 1971 | 1455/1485 | 1380/1390 | 32-41/32-50 | |||
| 1400(56") | 530 | 837.5 | 2218 | 1675/1685 | 1590 | 36-44/36-50 | |||
| 1600(64") | 600 | 957.5 | 2578 | 1915/1930 | 1820 | 40-50/40-57 | |||
| 1800(72") | 670 | 1067.5 | 2689 | 2115/2130 | 2020 | 44-50/44-57 | |||
| 2000(80") | 780 | 1182.5 | 3022 | 2325/2345 | 2230 | 48-50/48-62 |
Verify the selected configuration and service duty against the approved product submittal.