The HDQ series electric ball valve is suitable for on/off control in air conditioning fan coil units and central heating systems. It consists of a ball valve and an actuator. The actuator drives the valve core to rotate 90°. The actuator is driven by a synchronous motor and features built-in limit switches that cut off power when the valve is fully open or fully closed, ensuring stable operation. The HDQ series electric ball valve is widely used in central heating systems, time-area based heating control systems, central air conditioning coil systems, solar systems, and more.
TECHNICAL PARAMETER >>
- Drive voltage: AC220V
- Frequency: 50/60Hz
- Protection rating: IP54
- Control mode: Power-off close (open)
- Drive torque: 6 N·m
- Power consumption: 6 VA (only during valve opening/closing)
- Valve body pressure rating: 1.6 MPa
- Shut-off differential pressure: ≤0.4 MPa
- Applicable media: cold water, hot water, or 50% ethylene glycol solution
- Opening/closing time: 6–15 seconds
- Applicable media temperature: 0–90°C
- Applicable ambient temperature: 0–60°C
- Connection: ZG internal pipe thread (customization available upon request)


MODEL LIST >>
| Model | Valve Type | DN (mm) | Connection Thread | Pressure Rating (MPa) | H1 (mm) | H2 (mm) | L (mm) | Ball Diameter (mm) | Weight (g) |
|---|---|---|---|---|---|---|---|---|---|
| HDQ-215 | Electric two-way valve | DN15 | 1/2″ | 1.6 | 121 | 23.6 | 51 | 12 | 470 |
| HDQ-220 | Electric two-way valve | DN20 | 3/4″ | 1.6 | 129 | 27.5 | 58 | 17 | 535 |
| HDQ-225 | Electric two-way valve | DN25 | 1″ | 1.6 | 138 | 29.5 | 67 | 19 | 585 |
| HDQ-232 | Electric two-way valve | DN32 | 1-1/4″ | 1.6 | 142 | 36 | 75 | 27 | 810 |
| HDQ-240 | Electric two-way valve | DN40 | 1-1/2″ | 1.6 | 153 | 40 | 83 | 30 | 965 |
| HDQ-250 | Electric two-way valve | DN50 | 2″ | 1.6 | 173 | 46 | 96 | 38 | 1340 |

2-wire power-off close (open):
- When SW is closed, the valve opens/closes; after reaching the position, the internal power supply is automatically cut off, and the valve remains in the open/closed state. The backup power supply is charged.
- When SW is powered off, the valve closes/opens; after reaching the position, the internal power supply is automatically cut off, and the valve remains in the closed/open state.
- Note: The power-on time should not be less than 1 minute.