Fuel Cell Smart Electronic Three-Way Coolant Valve FLAFC003 Series 5-200kW CAN PWM Control

Fuel Cell Dedicated Smart Electronic Three-Way Valve FLAFC003 Series Adapting to 5~200kW Systems Ball Valve Flow Distribution CAN/PWM Control

Quick Detail:

• Smart electronic three-way valve developed specifically for the coolant circuit of proton exchange membrane fuel cells (PEMFC)
• Core function: distributes coolant flow in the cooling circuit through a smart actuator driven ball valve, executing the system thermal management strategy
• Applicable power range: 5~200kW (covering passenger vehicles, commercial vehicles and stationary power stations)
• Project platform: FLAFC003, derived into 8 different configuration products (01~08)
• Structure: main housing, ball, dynamic seal mechanism, connecting pipe, smart actuator, etc.
• Pipe connector specifications: 38mm / 51mm optional
• Control method: CAN communication (01/03/05/07) or PWM control (02/04/06/08)
• Working voltage: 24V DC (18~32V); Working current: <=0.6A
• Working temperature range: -40C ~ 105C
• Internal leakage: <=2L/h @ 150kPa(G); External leakage: <=10mL/min @ 150kPa(G)
• Protection class: IP67; Working noise: <=60dB at 1m
• Service life: >=300,000 cycles

Description:

In the fuel cell thermal management system, coolant needs to be distributed between the large circulation (radiator circuit) and the small circulation (bypass circuit) as needed. When the stack temperature is low, the coolant flows through the small circulation to heat up quickly; when the stack temperature is high, the coolant flows through the large circulation to cool down through the radiator. The electronic three-way valve is precisely the core actuating component realizing this flow distribution strategy.

The FLAFC003 series smart electronic three-way valve uses a ball valve dynamic seal structure: the smart actuator drives the ball to rotate, realizing coolant flow distribution among three controllable ports. The product offers 8 model configurations, with the main differences being pipe size, communication method and control strategy.

In the CAN control version, the FCU sends the target angle to the smart actuator via the CAN protocol; the PCBA integrates a microcontroller, motor drive circuit and position sensor to realize angle closed-loop control, and feeds back the current angle and execution result to the FCU. In the PWM hard-wire control version, the angle sensor is powered by the FCU (5V+/-0.5V), the angle feedback uses a PWM signal (duty cycle linearly related to angle), and the motor is driven by the H-bridge circuit inside the FCU.

The product working temperature range is -40C~105C, protection class IP67. Conductivity requirement: 3L of deionized water circulated at 85C for 48h, with a conductivity difference of <=10uS/cm.

Specifications:

Electrical / Optical Characteristics (Ta=25C +/-3C). See product specification image.

Installation method: when the actuator is installed facing down, the angle with the vertical direction must be greater than 60 degrees.

Applications:

This product is widely used in the coolant circuit of various proton exchange membrane fuel cell (PEMFC) systems, specifically including:

• Hydrogen fuel commercial vehicles (heavy trucks, city buses, logistics vehicles)
• Hydrogen fuel passenger vehicles (sedans, SUVs)
• Stationary fuel cell power stations (backup power, distributed energy systems)
• Fuel cell forklifts and construction machinery
• Hydrogen fuel cell ships

Typical application position: installed in the fuel cell coolant circuit, between the stack outlet and the radiator/bypass pipeline, precisely controlling the stack temperature by controlling the flow distribution of the coolant between the large circulation (radiator) and the small circulation (bypass).

Company Advantages:

Shanghai Yibaijia Hydrogen Energy Technology Co., Ltd., as a professional hydrogen energy parts supply platform, distributes the FLAFC003 series smart electronic three-way valves dedicated to fuel cells. The FLAFC003 series uses a smart actuator driven ball valve dynamic seal structure, offering 8 model configurations (01~08) covering CAN and PWM communication and 38mm and 51mm pipe specifications. The working temperature covers -40C~105C, protection class IP67, internal leakage <=2L/h@150kPa, service life >=300,000 cycles. The Shanghai Yibaijia team has more than 10 years of hydrogen energy industry experience and can provide full-process technical support from product selection and system matching to installation and commissioning.

FAQ

Q1: Can you provide samples for testing?
A: Yes, we support sample orders for vehicle installation testing and performance verification, and also accept mixed-model sample orders.

Q2: What is the delivery lead time?
A: Sample orders usually take 5-7 working days; bulk orders (depending on order quantity) generally take 15-30 working days.

Q3: Is there a minimum order quantity (MOQ) limit?
A: There is no strict MOQ limit; 3-piece sample trial orders are supported, and bulk order prices are more favorable.

Q4: What role does the FLAFC003 series electronic three-way valve play in the fuel cell system?
A: The electronic three-way valve drives the ball to rotate through the smart actuator, realizing the flow distribution of coolant between the large circulation (radiator circuit) and the small circulation (bypass circuit). When the stack temperature is low, the coolant flows through the small circulation to heat up quickly; when the stack temperature is high, the coolant flows through the large circulation to cool down through the radiator.

Q5: What model configurations does the FLAFC003 series offer?
A: 8 models (01~08), with the main differences being pipe size (38mm/51mm), communication method (CAN/PWM), dimensions and weight. 01/03/05/07 are CAN communication versions, 02/04/06/08 are PWM hard-wire control versions.

Q6: What communication methods does the electronic three-way valve have?
A: CAN communication and PWM hard-wire control. The CAN version receives the FCU target angle command via the CAN protocol and feeds back the execution result; the PWM version controls the angle through PWM duty cycle.

Q7: What are the installation requirements of the electronic three-way valve?
A: When the actuator is installed facing down, the angle with the vertical direction must be greater than 60 degrees. Allowed installation positions are the body shell and chassis. The design of installation and positioning parts must consider vibration and noise requirements and avoid water accumulation on or inside the connector surface.

Q8: How to handle product failures?
A: We implement a strict quality control system, with an out-of-factory defect rate below 0.2%. During the warranty period, small batches of defective products will be replaced with new ones in the next order; batch quality problems will be negotiated for repair or replacement to ensure customer rights.