INDUSTRIAL VALVES & FLOW CONTROL TECHNICAL DATA
MODEL SG-065-7
Micro-resistance Slow-closing Check Valve
Product enquiry
01
CONSTRUCTION
Materials / Main Components
| No. | Part Name | Material |
|---|---|---|
| 1 | Body | Ductile iron/CS/SS |
| 2 | Bonnet | Ductile iron/CS/SS |
| 3 | Disc | Q235+NBR/EPDM |
| 4 | Stem | SS410/SS304/SS316/Brass HPb59-1 |
| 5 | Slow closing system | Stainless steel assembly |
| 6 | Sealing face | D507 |
02
RATING & STANDARDS
Main Technical Parameters
- Nominal pressure
- PN10/PN16/PN25/PN40
- Flange connection standard
- GB/T17241.6, GB/T9113-2010, EN1092-2
- 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 Temp (°C) | Test Pressure (bar) / Shell | Test Pressure (bar) / Seat | Slow closing time (seconds) |
|---|---|---|---|---|---|
| DN40-DN1600 | 10.0/16.0 | -10°C+100°C | 15.0/24.0 | 11.0/17.6 | 0-60 |
05
DIMENSIONAL DATA
Dimensions
Scroll horizontally to view all dimensions.
| DN(mm) & INCH | GB/T12221 / L | EN1092-2 / PN10/16 / D | EN1092-2 / PN10/16 / K | EN1092-2 / PN10/16 / n-Φd | EN1092-2 / PN25 / D | EN1092-2 / PN25 / K | EN1092-2 / PN25 / n-Φd |
|---|---|---|---|---|---|---|---|
| 50(2") | 150 | 165 | 125 | 4-19 | 165 | 125 | 4-19 |
| 65(2½") | 185 | 185 | 145 | 4-19 | 185 | 145 | 4-19 |
| 80(3") | 200 | 200 | 160 | 8-19 | 200 | 160 | 8-19 |
| 100(4") | 220 | 220 | 180 | 8-19 | 235 | 190 | 8-23 |
| 125(5") | 250 | 250 | 210 | 8-19 | 270 | 220 | 8-28 |
| 150(6") | 285 | 285 | 240 | 8-23 | 300 | 250 | 8-28 |
| 200(8") | 340 | 340 | 295 | 8-23/12-23 | 360 | 310 | 12-28 |
| 250(10") | 405 | 395/405 | 350/355 | 12-23/12-27 | 425 | 370 | 12-31 |
| 300(12") | 460 | 445/460 | 400/410 | 12-23/12-27 | 485 | 430 | 16-31 |
| 350(14") | 520 | 505/520 | 460/470 | 16-23/16-31 | 555 | 490 | 16-34 |
| 400(16") | 580 | 565/580 | 515/525 | 16-28/16-31 | 620 | 550 | 16-37 |
| 450(18") | 640 | 615/640 | 565/585 | 20-28/20-31 | 670 | 600 | 20-37 |
| 500(20") | 715 | 670/715 | 620/650 | 20-28/20-34 | 730 | 660 | 20-37 |
| 600(24") | 840 | 780/840 | 725/770 | 20-31/20-37 | 845 | 770 | 20-41 |
| 700(28") | 910 | 895/910 | 840 | 24-31/24-37 | |||
| 800(32") | 1025 | 1015/1025 | 950 | 24-34/24-41 |
Verify the selected configuration and service duty against the approved product submittal.