INDUSTRIAL VALVES & FLOW CONTROL TECHNICAL DATA
MODEL SG-041-1
Lever-Operated Wafer-Type Centerline Butterfly Valve
Product enquiry
CONSTRUCTION
Materials / Main Components
| No. | Part Name | Material |
|---|---|---|
| 1 | Body | Ductile iron/CS/SS |
| 2 | Seat | EPDM/NBR |
| 3 | Disc | Ductile iron/CS/SS |
| 4 | Taper pin | CF8 |
| 5 | Stem | SS410/SS304/SS316 |
| 6 | Handle | QT450-10 |
RATING & STANDARDS
Main Technical Parameters
- Nominal pressure
- PN10/PN16/PN25/PN40, 125LB/150LB, 5K/10K/16KCatalogue-listed classes; pressure, size and material combinations require confirmation. Refer separately to the maximum-pressure conditions.
- Face to face standard
- DIN3202K1, API609, EN558-1, ISO5752
- Test standard
- GB/T13927-2008, API598
- Applicable media
- Water, oil, gas, etc
APPLICATION & CONFIGURATION
Additional Information
Opening and flow information
The opening-angle/flow-coefficient illustration is qualitative only. Its percentage scale is not sufficiently defined to reproduce reliable numerical sizing coefficients. Obtain approved flow data before sizing.
SECTIONAL ILLUSTRATIONS
Sectional Illustrations

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 |
|---|---|---|---|---|
| DN50-DN300 | 10.0/16.0 | -10°C+100°C | 15.0/24.0 | 11.0/17.6 |
DIMENSIONAL DATA
Dimensions
Scroll horizontally to view all dimensions.
Units: mm
JIS10K connection columns are omitted because their source headings conflict with their values. The unconfirmed DN50 ANSI diameter is marked for confirmation; no corrected value is inferred.
| DN(mm) & INCH | A | B | C | D | Phi D1 | Phi D3 | PN10/16 / Phi D2 | PN10/16 / N-Phi d | ANSI150Lb / Phi D2 | ANSI150Lb / N-Phi d | L |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50(2") | 63 | 126 | 29 | 43 | 52.6 | 100 | 125 | 4-19 | Not specified — confirm | 4-19 | 245 |
| 65(2½") | 69 | 134 | 29 | 46 | 64.3 | 120 | 145 | 4-19 | 139.7 | 4-19 | 245 |
| 80(3") | 76 | 152 | 29 | 46 | 78.8 | 127 | 160 | 8-19 | 152.4 | 4-19 | 245 |
| 100(4") | 106 | 170 | 29 | 52 | 104 | 156 | 180 | 8-19 | 190.5 | 8-19 | 276 |
| 125(5") | 115 | 183 | 29 | 56 | 123.3 | 190 | 210 | 8-19 | 215.9 | 8-22 | 276 |
| 150(6") | 128 | 196 | 29 | 56 | 155.7 | 212 | 240 | 8-23 | 241.3 | 8-22 | 276 |
| 200(8") | 160 | 238 | 41 | 60 | 202.4 | 268 | 295 | 8-22/12-22 | 298.4 | 8-22 | 383 |
| 250(10") | 190 | 258 | 41 | 68 | 250.4 | 325 | 350/355 | 12-22/12-26 | 361.9 | 12-25 | 383 |
| 300(12") | 235 | 300 | 41 | 78 | 301.5 | 370 | 400/410 | 12-23/12-28 | 432 | 12-25 | 383 |
Verify the selected configuration and service duty against the approved product submittal.