Cooling 3 Way Heater Water Valve

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Cooling 3 Way Heater Water Valve

 

 

 

Medium	50%/50% ethylene glycol aqueous solution
Medium temperature / Ambient temperature	Medium temperature: -40℃ ~ 115℃; Operating ambient temperature: -40℃ ~ 100℃, relative humidity ≤95%
Rated voltage / Operating voltage	Rated voltage: DC12V, DC24V; Operating voltage range: DC9V ~ 30V
Control method	LIN control
Current	Under rated voltage, operating current ＜500mA; stall current ＜1000mA
Switching time	＜10s under rated voltage
Internal leakage	Medium: 50%/50% ethylene glycol aqueous solution; internal leakage ＜20 mL/min under pressure difference of 30kPa
External leakage	Air tightness test at 340kPa(gauge pressure), gas leakage ＜5 mL/min
Flow resistance	≤12kPa @ 20L/min
Noise	Under rated voltage, medium not flowing; tested at 500mm from valve, noise ≤45dB(A)
Ingress protection rating	IP67

 

 

 

 

This LIN-controlled water valve is widely applied in battery thermal management systems. It intelligently switches the flow direction of coolant inside the temperature control circuit of new energy vehicles. Working in coordination with electronic water pumps, it flexibly distributes ethylene glycol aqueous solution. Combined with PTC heaters, heat pump integrated units and battery cooling plates, it forms a complete temperature control loop.

 

It automatically switches between cooling circuits, heating circuits and bypass circuits according to real-time battery temperature, keeping cells operating within the optimal temperature range and reducing overall system energy consumption. Suitable for new energy commercial vehicles, construction machinery and energy storage battery pack thermal management scenarios.

 

 

 

 

 

Q1: What circulating medium is this water valve compatible with?

A: It is standardly compatible with 50%/50% ethylene glycol aqueous solution, widely used in battery thermal management systems, forming a temperature control loop with electronic water pumps and PTC heaters. Using other media is not recommended to avoid aging and leakage of internal seals.

 

Q2: What control methods does the valve support, and what is its voltage range?

A: It uses LIN bus control; supports DC12V/24V systems, with an operating voltage range of DC9V~30V, compatible with most new energy vehicle low-voltage platforms.

 

Q3: How are internal and external leakage indicators understood, and what impact do they have on the system?

A: Internal and external leakage are strictly controlled. Excessive internal leakage will cause cross-current in the hot and cold circuits, reducing the efficiency of the PTC heater or cooling circuit; external leakage will cause coolant loss, affecting the stable operation of the entire battery thermal management system.

 

Q4: What is the significance of the operating flow resistance parameter?

A: Under rated operating conditions of 20L/min, the flow resistance is ≤12kPa. Lower flow resistance reduces the load on the electric water pump, decreases overall vehicle energy consumption, and ensures stable coolant circulation flow.

 

Q5: Can an IP67 protection rating be installed outdoors directly?

A: IP67 provides short-term waterproof and dustproof protection, suitable for engine compartment installation; for long-term outdoor exposure, it is recommended to add sunshade protection to further extend the valve body's service life.

 

 

 

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