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603734A
Sunlight
603734A
DC brush
24 VDC nominal(18 VDC to 32VDC allowable operating range)
0.4N.m
6±1.5rpm
≤0.1A
≥1.1N.m
≤0.5A
Sleeve DJ7031-6.3-11, Connector DJ98192000
less than 45 dB at 10cm
-40℃ to 85℃
0.220KG
90°
≤0.2N.m
more than 2000/L in the fully open position
IP54
more than 50,000 cycles
air leakage zero fault detection per 2 minutes at a 0.4Mpa pressure
internal leakage zero fault detection less than 950ml per hour at the temperature 85℃ under a hydraulic pressure of 0.1Mpa
| Quantity: | |
|---|---|
Model: 603734A
Brand: Sunlight
The Electric Water Valve 603734A is designed for precision regulation of coolant flow in vehicle heating systems. Coupled with the engine’s water circulation, the valve controls the amount of coolant entering the heater core to maintain optimal in-cabin temperature. The actuator drives the valve stem across a 90° travel to achieve fine modulation.
| Feature | Specification | Benefit |
|---|---|---|
| Input Voltage | 24 VDC nominal (18–32 VDC allowable) | Compatible with most commercial vehicle power systems |
| Rated Load Torque | 0.4 N·m | Balanced torque for efficient control |
| Rated Speed | 6 ± 1.5 rpm | Stable, smooth actuation |
| Rated Load Current | ≤ 0.1 A | Low power consumption |
| Stall Torque | ≥ 1.1 N·m | Strong starting capability under resistance |
| Stall Current | ≤ 0.5 A | Electrical safety margin |
| Connector Configuration | Sleeve DJ7031-6.3-11, Connector DJ98192000 | Standard connectors for ease of wiring |
| Noise Level | < 45 dB @ 10 cm | Quiet operation in passenger cabin |
| Ambient Temperature | –40 ℃ to +85 ℃ | Operates in extreme conditions |
| Net Weight | 0.220 kg | Lightweight and easy to mount |
| Rotation Range | 90° | Ideal for open/close or modulated control |
| Opening / Closing Torque | ≤ 0.2 N·m | Low friction, responsive control |
| Flow Rate (Fully Open) | > 2000 L/h | High flow capacity for heavy-duty systems |
| Protection Rating | IP54 | Dust and splash resistance |
| Service Life | ≥ 50,000 cycles | Durable design for long-term reliability |
| External Leakage | 0 leakage @ 0.4 MPa, 2 minutes air test | Strong external sealing |
| Internal Leakage | ≤ 950 ml/h @ 85 ℃ under 0.1 MPa | Controlled internal seepage |
Heating and cooling loops in commercial trucks, buses, and vans
HVAC systems in agricultural and construction machinery cabins
Climate control in specialty, emergency, or utility vehicles
Any system requiring precise coolant flow regulation in heating/cooling circuits
Looking for full system component options? Check our HVAC Solutions or explore our range of Brushless Fans for ideal pairing.
Connector Types: DJ7031-6.3-11 sleeve, DJ98192000 connector
Mounting Tips: Ensure straight alignment with coolant pipes; avoid tight bends or trapped air zones
Wiring Advice: Reserve sufficient wire length for maintenance or future replacement
Commissioning: Before regular operation, cycle the valve fully open → fully closed to check for smooth motion and absence of abnormal noise
Undergoes rigorous durability testing and environmental aging
Dual leakage inspections (external & internal) to guarantee sealing
High precision in stem motion and positioning
Validated under real-world automotive cycling and environmental conditions
Individually wrapped with anti-vibration materials
Includes installation manual, test report, and product certificate
Option for custom packaging, labeling or branding on request
A: It operates nominally at 24 VDC, with allowable voltage range between 18 and 32 VDC.
A: Yes — the operational temperature spans from –40 ℃ to +85 ℃, suitable for harsh climatic conditions.
A: In full open position, it supports a flow rate above 2000 L/h, making it suitable for demanding heating systems.
A: External leakage is tested via 0 leakage at 0.4 MPa for 2 minutes. Internal leakage is capped at ≤ 950 ml/h at 85 ℃ under 0.1 MPa.
A: Sleeve DJ7031-6.3-11 and connector DJ98192000 are utilized for standard connectivity.
A: No. Noise level is kept under 45 dB at 10 cm, providing quiet operation suitable for passenger environments.
A: It is rated for at least 50,000 open/close cycles under normal conditions.
For pricing, volume orders, or customization (voltage, torque, connector type, etc.), please reach out to our sales team:
International Sales: Sunny Li / Alisa Chen / Frances Zhang / Vicky Li
For direct contact details, visit our Contact Us page.
Model: 603734A
Brand: Sunlight
The Electric Water Valve 603734A is designed for precision regulation of coolant flow in vehicle heating systems. Coupled with the engine’s water circulation, the valve controls the amount of coolant entering the heater core to maintain optimal in-cabin temperature. The actuator drives the valve stem across a 90° travel to achieve fine modulation.
| Feature | Specification | Benefit |
|---|---|---|
| Input Voltage | 24 VDC nominal (18–32 VDC allowable) | Compatible with most commercial vehicle power systems |
| Rated Load Torque | 0.4 N·m | Balanced torque for efficient control |
| Rated Speed | 6 ± 1.5 rpm | Stable, smooth actuation |
| Rated Load Current | ≤ 0.1 A | Low power consumption |
| Stall Torque | ≥ 1.1 N·m | Strong starting capability under resistance |
| Stall Current | ≤ 0.5 A | Electrical safety margin |
| Connector Configuration | Sleeve DJ7031-6.3-11, Connector DJ98192000 | Standard connectors for ease of wiring |
| Noise Level | < 45 dB @ 10 cm | Quiet operation in passenger cabin |
| Ambient Temperature | –40 ℃ to +85 ℃ | Operates in extreme conditions |
| Net Weight | 0.220 kg | Lightweight and easy to mount |
| Rotation Range | 90° | Ideal for open/close or modulated control |
| Opening / Closing Torque | ≤ 0.2 N·m | Low friction, responsive control |
| Flow Rate (Fully Open) | > 2000 L/h | High flow capacity for heavy-duty systems |
| Protection Rating | IP54 | Dust and splash resistance |
| Service Life | ≥ 50,000 cycles | Durable design for long-term reliability |
| External Leakage | 0 leakage @ 0.4 MPa, 2 minutes air test | Strong external sealing |
| Internal Leakage | ≤ 950 ml/h @ 85 ℃ under 0.1 MPa | Controlled internal seepage |
Heating and cooling loops in commercial trucks, buses, and vans
HVAC systems in agricultural and construction machinery cabins
Climate control in specialty, emergency, or utility vehicles
Any system requiring precise coolant flow regulation in heating/cooling circuits
Looking for full system component options? Check our HVAC Solutions or explore our range of Brushless Fans for ideal pairing.
Connector Types: DJ7031-6.3-11 sleeve, DJ98192000 connector
Mounting Tips: Ensure straight alignment with coolant pipes; avoid tight bends or trapped air zones
Wiring Advice: Reserve sufficient wire length for maintenance or future replacement
Commissioning: Before regular operation, cycle the valve fully open → fully closed to check for smooth motion and absence of abnormal noise
Undergoes rigorous durability testing and environmental aging
Dual leakage inspections (external & internal) to guarantee sealing
High precision in stem motion and positioning
Validated under real-world automotive cycling and environmental conditions
Individually wrapped with anti-vibration materials
Includes installation manual, test report, and product certificate
Option for custom packaging, labeling or branding on request
A: It operates nominally at 24 VDC, with allowable voltage range between 18 and 32 VDC.
A: Yes — the operational temperature spans from –40 ℃ to +85 ℃, suitable for harsh climatic conditions.
A: In full open position, it supports a flow rate above 2000 L/h, making it suitable for demanding heating systems.
A: External leakage is tested via 0 leakage at 0.4 MPa for 2 minutes. Internal leakage is capped at ≤ 950 ml/h at 85 ℃ under 0.1 MPa.
A: Sleeve DJ7031-6.3-11 and connector DJ98192000 are utilized for standard connectivity.
A: No. Noise level is kept under 45 dB at 10 cm, providing quiet operation suitable for passenger environments.
A: It is rated for at least 50,000 open/close cycles under normal conditions.
For pricing, volume orders, or customization (voltage, torque, connector type, etc.), please reach out to our sales team:
International Sales: Sunny Li / Alisa Chen / Frances Zhang / Vicky Li
For direct contact details, visit our Contact Us page.
