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Hebei Nanfeng Automobile Equipment (Group) Co.,Ltd
Phone: +86 18811334770
Tel: +86 0317 8620396
Tel: +86 010 58673556
Candy Jiao
E-mail: nh.jiao@auto-parkingheater.com
Email: nh.li@auto-parkingheater.com
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Coolant 3 Way Valve For EV Battery Cooling And Chiller Bypass in BTMS
The 3-Way Coolant Valve is a critical component engineered for advanced Battery Thermal Management Systems (BTMS) in electric vehicles (EVs), hybrid electric vehicles (HEVs), and energy storage applications. This high-performance electric valve precisely manages coolant flow direction and distribution, enabling seamless switching or proportional control between multiple thermal circuits — including battery pack cooling, chiller bypass, radiator loop, power electronics cooling, and cabin heating integration.
Description
If you're looking for the coolant 3 way valve for ev battery cooling and chiller bypass in btms, welcome to wholesale the product from our factory. As one of the leading manufacturers and suppliers in China, we will offer you the best service and fast delivery. Now, check the quotation with our seller.
Coolant 3 Way Valve for EV Battery Cooling and Chiller Bypass in BTMS
Coolant 3 Way Valve description
Our high-performance 3-Way Coolant Control Valve is specifically engineered for Battery Thermal Management Systems (BTMS) in electric vehicles (EVs) and hybrid applications. Designed to precisely control and divert coolant flow, this valve enables efficient switching between different cooling circuits - such as battery pack cooling, chiller bypass, radiator loop, or heating modes - ensuring the battery operates within the optimal temperature range at all times.
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The Problem vs. Solution
| Conventional Valve Issues | Our Premium Solution |
| Inaccurate control causes temperature swings (±2°C) | Equal percentage flow characteristic delivers stable, precise output (±0.5°C) |
| Leakage at closed port wastes energy (bypass flow) | Bubble-tight shut-off (≤0.1% leakage) prevents energy loss |
| Short lifespan in chilled water applications (condensation, corrosion) | Stainless steel stem + brass/bronze body resists corrosion, 100,000+ cycles |
Key advantages include:
Precise Flow Control
Supports on/off switching or proportional regulation for accurate temperature management and minimal cross-flow leakage.
Robust Electric Actuation
Available in 12V or 24V DC versions with fast response time and low power consumption; optional PWM or LIN/CAN communication for smart integration.
Wide Operating Range
Designed to withstand extreme automotive environments from -40°C to +120°C, with excellent resistance to vibration, corrosion, and glycol-based coolants.
Compact & Lightweight Design
Optimized for space-constrained BTMS modules, easy installation in any orientation, and minimal impact on system weight.
High Durability & Reliability
IP67-rated protection (optional), low pressure drop, superior sealing performance, and long service life validated for heavy-duty EV applications.
Versatile Configurations
3 way chilled coolant valves can be designed in diameters ranging from 16Øs to Ø25, requiring only changes to the pipe dimensions.The Ø25 water valve allows for flow rate control from 5 L/MIN to 100 L/MIN..
How It Works: Technical Explanation
Operating Principle
A 3 way chilled coolant valve regulates chilled water flow by redirecting rather than stopping flow-maintaining constant system pressure while modulating temperature.
Technical Specifications
| No | Parameter name | Values |
| 1 | Water valve internal leakage | ≤20mL/min (water test), 30kPa pressure difference |
| 2 | Water valve external leakage | ≤5mL/min (gas test), 340kPa (gauge pressure) |
| 3 | Mode switching response time | <10s |
| 4 | Control method | LIN |
| 5 | Standard operating voltage | 24V |
| 6 | Operating voltage range | 20V~30V |
| 7 | Lifespan | 300,000 switch cycles |
Theoretical flow resistance curve of 3 way chilled coolant valve (100% fully open)
| Medium | 50% ethylene glycol |
| Temperature | 25℃ |
| Outer diameter of the pipe | Φ25 |
| Flow | 5-50L/min |
3 way chilled coolant valve showcase
The installation location diagram is shown below (permissible installation angles).
Connection requirements with the vehicle:
Ideal for liquid-cooled Battery Electric Vehicles (BEV), commercial electric trucks and buses, battery energy storage systems (BESS), and fuel cell thermal management. It excels in scenarios requiring dynamic coolant routing, such as active/passive cooling modes, waste heat recovery, and multi-loop thermal balancing.
Whether you are an OEM, Tier-1 supplier, or system integrator, our 3-Way Coolant Valve delivers reliable, efficient, and cost-effective thermal management solutions that help your EV systems achieve higher performance and compliance with stringent industry standards.
We offer flexible OEM/ODM services, including custom port configurations, actuator specifications, and full technical support. Samples and detailed datasheets are available upon request.
certificates
✅ Pressure Equipment Directive
✅ RoHS Compliant (environmentally friendly)
✅ IATF 16949 certified manufacturing
✅ Leakage standards compliance
Logistics & Payment Transparency
We can support different types of shipping and payment methods.
Payment: T/T, PayPal, L/C, Western Union.
Shipping: DHL, FedEx, UPS, Air freight, Sea freight (FCL/LCL).
Delivery: Samples in 7-10 days. Bulk orders in 30-35 days.
Company Profile
Hebei Nanfeng Automobile Equipment (Group) Co., Ltd is a vertically integrated industrial group specializing in electric vehicle thermal systems. With 1 international trading company (Beijing Golden Nanfeng) and 5 advanced manufacturing facilities, we deliver end-to-end control over quality, cost, and innovation.
📍 Headquarters: Wumaying Industrial Area, Nanpi County, Hebei, China
🏭 Facility Size: 80,000 m²
🌍 Export Markets: Asia, Europe, North & South America
Call to Action
- Ready to specify valves for your HVAC project?
- Get detailed specifications, BIM models, and pricing tailored to your requirements.
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