Updated At: 2025-12-02
The CHTA30 series regulators are suitable for district regulator cabinets and industrial/commercial users. Their built-in balanced compensation system enables the regulators to deliver stable outlet pressure even under conditions of significant inlet pressure fluctuations. The modular design facilitates online maintenance.
Technical Specifications
| Maximum allowable inlet pressure | 4 bar |
| Inlet pressure range | 0.1–4 bar |
| Outlet pressure range | 20–500 mbar |
| Regulation accuracy class AC | 5 |
| Lock-up pressure class SG | 15 |
| Cut-off accuracy class AG | 5 |
| Operating temperature | -20℃～60℃ |
| Connection size | DN50 |
Flow Reference Table
| Flow (Nm³/h) | Outlet Pressure (bar) | ||||||||||
| CHTA30 | CHTA30-AP | CHTA30-APA | |||||||||
| Inlet Pressure (bar) | 0.02 | 0.03 | 0.05 | 0.07 | 0.08 | 0.1 | 0.2 | 0.3 | 0.35 | 0.4 | 0.5 |
| 0.5 | 280 | 280 | 270 | 270 | 250 | 250 | 240 | 210 | 185 | 150 | - |
| 0.75 | 340 | 340 | 340 | 340 | 340 | 340 | 330 | 310 | 280 | 240 | 160 |
| 1 | 400 | 400 | 400 | 400 | 400 | 400 | 390 | 380 | 350 | 340 | 310 |
| 1.5 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 480 | 450 | 400 |
| 2 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 580 |
| 3 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| 4 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 | 750 |
| Note: The flow values in the table are based on natural gas with a relative density of 0.6 under standard conditions. | |||||||||||
Main Regulator Spring Reference Table
| Spring Color Code | Spring Parameters | CHTA30 | CHTA30-AP | CHTA30-APA | ||
| D | De | Lo | ||||
| Green | 3.5 | 50 | 182 | 15–25 mbar | - | - |
| Yellow | 4 | 50 | 175 | 23–40 mbar | - | - |
| Blue | 4.5 | 50 | 192 | 38–70 mbar | - | - |
| Blue | 5.5 | 50 | 255 | - | 70–85 mbar | - |
| Red | 6 | 50 | 255 | - | 85–110 mbar | 300–500 mbar |
| Black | 6.5 | 50 | 260 | - | 100–220 mbar | - |
| Yellow | 7.5 | 50 | 260 | - | 200–350 mbar | - |