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Electric Water Valve 602352A

The Electric Water Valve 602352A is a precision-engineered component for automotive HVAC systems, designed to regulate coolant flow with accuracy and reliability. Featuring a durable DC brush motor actuator, IP66 protection, and quiet operation (<45 dB), it delivers high efficiency under extreme conditions (–40 ℃ to +85 ℃). With over 50,000 operational cycles, this valve is ideal for commercial vehicles, agricultural machinery, and specialty HVAC applications requiring robust performance and durability.
  • 602352A

  • Sunlight

  • 602352A

  • 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 0453604,Connector 0128901

  • less than 45 dB at 10cm

  • -40℃ to 85℃

  • 0.220KG

  • 90°

  • ≤0.2N.m

  • more than 1000/L in the fully open position

  • IP66

  • more than 50,000 cycles

  • air leakage zero fault detection per 3 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

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Electric Water Valve 602352A

Model: 602352A

Brand: Sunlight

Product Overview

Automotive Coolant Control Valve Advantages

The Electric Water Valve 602352A is engineered to precisely regulate coolant flow in vehicle heating systems. Integrated into the engine’s water circulation loop, this valve modulates flow to the heater core, enabling consistent in-cabin temperature control. Equipped with a DC brush motor actuator and 90° stem travel, it ensures reliable, accurate actuation under varied operating conditions.

Key Features & Benefits

Electric Water Valve Technical Specifications

FeatureSpecificationBenefit
Input Voltage24 VDC nominal (18–32 VDC allowable)Compatible with most commercial vehicle systems
Rated Load Torque0.4 N·mSmooth, stable valve actuation under load
Rated Load Speed6 ± 1.5 rpmPrecise modulation, minimal overshoot
Rated Load Current≤ 0.1 AEnergy-efficient performance
Stall Torque≥ 1.1 N·mStrong startup under load
Stall Current≤ 0.5 ASafe electrical limits
Noise Level< 45 dB @ 10 cmQuiet operation in vehicle cabin environment
Operating Temperature–40 ℃ to +85 ℃Suitable for extreme climates
Net Weight0.220 kgCompact and lightweight
Rotation Range90°Ideal for open-close or modulated control
Opening / Closing Torque≤ 0.2 N·mLow friction, responsive actuation
Flow Rate (Fully Open)> 1000 L/hHigh throughput for demanding heating needs
Protection LevelIP66Dust and splash resistant for engine bay environments
Service Life≥ 50,000 cyclesDurable and long-lasting
External LeakageZero leakage @ 0.4 MPa for 3 minutesExcellent sealing performance

Typical Applications

Vehicle HVAC System Applications

  • Heating & cooling loops in commercial trucks and buses

  • Cabin HVAC systems in agricultural and construction machinery

  • Climate control in specialty, emergency, and utility vehicles

  • Any system requiring precise control of coolant or heater flow

Interested in full HVAC component systems? Explore our HVAC Solutions or check our selection of Brushless Fans for complementary parts.

Installation & Wiring

Coolant Valve Installation Guide

  • Connector Type: Sleeve 0453604, Connector 0128901

  • Mounting Tips: Align smoothly with coolant lines, avoid sharp bends and air pockets

  • Wiring Advice: Provide slack for maintenance or replacement

  • Commissioning: Before putting into service, run a full open/close cycle test to verify smooth motion and no abnormal noise

Quality & Reliability

Durability and Sealing Performance

  • Undergoes rigorous durability and environmental aging tests

  • Dual leakage inspection: external and internal

  • Accurate positioning and travel control

  • Validated under real-world vehicle operating conditions

Packaging & Delivery

Safe Packaging and Shipment

  • Individually packaged with anti-vibration protection

  • Includes installation guide and test report

  • Customized packaging and labeling available upon request

FAQ — Frequently Asked Questions

Q1: What is the primary purpose of the 602352A valve?

A: It regulates coolant flow in HVAC systems, ensuring consistent cabin temperature and improved energy efficiency.

Q2: How does the valve maintain performance in extreme conditions?

A: The valve is designed to operate from –40 ℃ to +85 ℃ and meets IP66 protection standards, ensuring reliability in harsh environments.

Q3: What makes this valve different from similar models?

A: Its high sealing performance, low noise operation (<45 dB), and over 50,000 cycle durability make it stand out.

Q4: Is this valve compatible with different vehicle types?

A: Yes, it works with commercial trucks, buses, agricultural machines, and specialty vehicles.

Q5: How should I maintain the valve for long-term performance?

A: Minimal maintenance is needed. Inspect connections and ensure the valve cycles smoothly. Periodic cleaning of connectors is recommended.

Q6: Can this valve be integrated with other HVAC components?

A: Yes. It works seamlessly with our Brushless Fans and other components listed in our HVAC Solutions section.

Contact for Inquiry

Get a Quote for Electric Water Valves

For pricing, bulk orders, or custom versions (e.g. different voltage, torque, connector types), please contact our sales team:

International Sales: Sunny Li / Alisa Chen / Frances Zhang / Vicky Li

For phone, email, and details, see our Contact Us page.


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