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The series DS pressure regulator, a direct-acting type gas regulator, is suitable for low and medium pressure and widely used in both commercial and industrial installations using Natural Gas, LPG and other non-corrosive gases.
Fail open：when the main diaphragm fails or the downstream pressure drops suddenly, the pressure regulator will be fully opened
With balance valve：Equipped with a balance valve to eliminate the influence of inlet pressure change on outlet pressure
Modularization: High reliability and keep in repair on line
With shut-off valve：Equipped with over-pressure/under-pressure shut-off valve
| Model | DS200 | DS400 | DS600 |
| Caliber | DN 40 | DN 40 / DN 50 | DN 50 |
| Connection size | PN16 / PN25 flange | PN16 / PN25 flange | PN16 / PN25 flange |
| Maximum inlet pressure | 0.5 / 1.9MPa | 0.5 / 1.9MPa | 0.5 / 1.9MPa |
| Outlet pressure range | 50kPa - 0.4MPa | 1.5kPa - 0.4MPa | 1.5kPa - 0.4MPa |
| AC | Up to 2.5 | Up to 2.5 | Up to 2.5 |
| SG | Up to 5 | Up to 5 | Up to 5 |
| Working temperature range | -20 - 60℃ | -20 - 60℃ | -20 - 60℃ |
| Cg | 350 | 660 | 930 |
| Pressure tube specifications | regulation:φ10 | regulation:φ12 shot-off:φ8 | regulation:φ12 shot-off:φ8 |
| Harmonized STD | GB27790 / EN334 | ||
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