Fuel Cell Hydrogen Injector HGI S1.3 5-300kW Precise Flow Control 10 Million Cycle Life

Fuel Cell Hydrogen Injector HGI S1.3 for 5~300kW Systems Precise and Controllable Hydrogen Injection 10 Million Cycle Life Fast Response

Quick Detail:

• Proportional valve developed specifically for the anode hydrogen supply module of proton exchange membrane fuel cell (PEMFC)
• Core function: precisely controls hydrogen injection according to current or PWM signals, providing stable and controllable hydrogen flow for the stack
• Applicable power range: 5~300kW (covering passenger vehicles, commercial vehicles and stationary power stations)
• Working medium: hydrogen (H2)
• Normal working pressure: 6~20 barA; maximum working pressure: 25 barA
• Maximum hydrogen supply: 6g/s @ 15barA; Working voltage: 24V
• Control method: current control or PWM duty cycle control (500~1000Hz)
• Opening current: 1.0A+/-0.1A; adjustable current range: 1.0A~2.0A
• Resistance: 5.7 Ohm +/-5% @ 20C; Leakage: <=10cc/h
• Valve open/close life: 10 million cycles; Protection class: IP67; Weight: about 410g

Description:

In a fuel cell system, hydrogen needs to be precisely delivered from the high-pressure storage cylinder (usually 6~20bar) to the stack anode to participate in the reaction. Under different power conditions, the stack's demand for hydrogen flow and pressure varies greatly: at idle only a tiny amount of hydrogen is needed, while at rated power a flow of several grams per second is required. The role of the hydrogen injector (proportional valve) is to precisely regulate the hydrogen flow entering the stack according to the system control command, ensuring the stack receives a stable and appropriate hydrogen supply under any working condition.

The HGI S1.3 hydrogen injector (proportional valve) is a core component of the fuel cell anode hydrogen supply module. It uses the solenoid valve principle, precisely regulating the valve spool opening by controlling the coil current or PWM duty cycle (500~1000Hz), thereby realizing precise control of the hydrogen injection amount. The injection amount can be controlled linearly and precisely according to the current, meeting the hydrogen supply needs under different power conditions. The injector can achieve continuously adjustable flow control between fully open and fully closed, with fast response and high control precision. The product has the following outstanding features:

Precise flow control: the injection amount changes linearly with the current; the adjustable current range is 1.0A~2.0A, and the maximum hydrogen supply can reach 6g/s @ 15barA. The flow-current curve is precisely calibrated to ensure control precision.

Ultra-long life and high reliability: the HGI S1.3 uses a wear-resistant design and an optimized electromagnetic structure, with a valve open/close life of up to 10 million cycles. The product has undergone dozens of DV verifications such as sealing performance, cleanliness, insulation resistance, pressure resistance, high and low temperature operation, damp heat test, random vibration, impact test, IP67 protection, salt spray test, EMC and durability test.

Low power consumption and small volume: low power consumption and small volume, weighing only about 410g; dimensions 48mm x 50.5mm x 120mm, suitable for space-constrained fuel cell system integration.

High safety: leakage <=10cc/h, ensuring zero hydrogen leakage. Protection class IP67, meeting harsh vehicle environment requirements. The use environment and medium of the product must not contain oil.

The product is installed vertically upward (if this cannot be achieved, 0 degree or 180 degree horizontal installation can be selected). Before installation, ensure the sealing surface has no bumps or scratches and the electrical connector has no bumps; the fastening screws (M5) need torque control and even force. 100% of products undergo sealing, flow, hysteresis, electrical and appearance inspection before leaving the factory.

Specifications:

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

Applications:

This product is widely used in the anode hydrogen supply module of proton exchange membrane fuel cell (PEMFC) systems, specifically including:

• Hydrogen fuel commercial vehicles (heavy trucks, city buses, logistics vehicles, cold-chain logistics vehicles)
• Hydrogen fuel passenger vehicles (sedans, SUVs)
• Stationary fuel cell power stations (backup power, distributed energy systems)
• Hydrogen fuel cell ships
• Fuel cell forklifts and port material handling equipment
• Fuel cell system test benches

Company Advantages:

Shanghai Yibaijia Hydrogen Energy Technology Co., Ltd., as a professional hydrogen energy parts supply platform, distributes the HGI series hydrogen injectors (proportional valves) dedicated to fuel cells. The HGI S1.3 uses precise current/PWM control, with a maximum hydrogen supply of 6g/s @ 15barA, a valve open/close life of 10 million cycles, adapting to 5~300kW systems with protection class IP67. The company team has more than 10 years of experience in the hydrogen energy and electronic control industry and can provide full-process technical support from product selection and system matching to installation.

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; 10-piece sample trial orders are supported, and bulk order prices are more favorable.

Q4: What role does the hydrogen injector (proportional valve) play in the fuel cell system?
A: The hydrogen injector (proportional valve) is a core component of the fuel cell anode hydrogen supply module. Its role is to precisely regulate the hydrogen flow entering the stack according to the system control command, ensuring the stack obtains a stable and appropriate hydrogen supply under any power condition. The injection amount is precisely controlled according to the current or PWM signal.

Q5: What is the difference between the hydrogen injector and an ordinary on/off valve?
A: An ordinary on/off valve has only fully open and fully closed states and cannot precisely control the flow. The hydrogen injector (proportional valve) can achieve continuously adjustable flow control between fully open and fully closed, with fast response and high control precision. The injection amount changes linearly with the current.

Q6: What control methods does the hydrogen injector support?
A: It supports current control or PWM duty cycle control (frequency 500~1000Hz). The adjustable current range is 1.0A~2.0A.

Q7: What is the service life of the hydrogen injector?
A: The valve open/close life is up to 10 million cycles. The product has undergone dozens of verifications such as sealing performance, cleanliness, insulation resistance, pressure resistance, high and low temperature operation, damp heat, random vibration, impact, salt spray, EMC and durability tests.

Q8: What are the installation requirements of the hydrogen injector?
A: Vertical upward installation is recommended (if this cannot be achieved, 0 degree or 180 degree horizontal installation can be selected). Before installation, ensure the sealing surface has no scratches or damage; the fastening screws (M5) need torque control and even force. The O-ring must be replaced after installation and removal.

Q9: 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.