Fuel Cell Heated Drain Valve YJDV3122601 5-300kW PTC Ceramic Heating IP68 Diaphragm Isolation

Fuel Cell Heated Drain Valve YJDV3122601 Series for 5~300kW Systems Integrated PTC Ceramic Heating Fast Low-Temperature Ice Breaking Diaphragm Media Isolation IP68 Protection

Quick Detail:

• Heated drain valve developed for the hydrogen circuit drainage system of proton exchange membrane fuel cell (PEMFC)
• Core function: periodically and quantitatively discharges the liquid water separated by the water separator out of the system
• Applicable power range: 5~300kW (covering passenger vehicles, commercial vehicles and stationary power stations)
• Low-temperature cold-start function: integrates PTC ceramic heating, able to quickly heat a small amount of thin ice at the bottom of the water separator in a low-temperature environment, ensuring normal system operation at low temperature
• Rated voltage: 24VDC; working voltage range: 18~32VDC; Coil resistance: 35 Ohm @ 20C
• Working pressure range: 0~3barG; Response time: <=30ms; Working temperature: -40C~120C
• Protection class: IP68 (meeting harsh vehicle waterproof and dustproof requirements)
• Structure: diaphragm structure, media isolation type; Sealing material: EPDM; Special treatment: oil and grease removal
• NTC temperature sensor: R25=10KOhm +/-1%, real-time temperature monitoring

Description:

In a fuel cell system, after the hydrogen at the stack anode outlet is separated by the water separator, the liquid water accumulates at the bottom of the separator. This water needs to be periodically and quantitatively discharged out of the system; otherwise the separator will store too much water, affecting hydrogen recirculation efficiency and normal system operation. The heated drain valve is the core component undertaking this key task.

The YJDV3122601 series heated drain valve is installed at the drain port at the bottom of the water separator. Its main functions include:

Timed and quantitative drainage: during system operation, the heated drain valve opens periodically according to the control command, discharging the liquid water accumulated at the bottom of the separator out of the system to prevent excessive water storage from affecting system performance.

Low-temperature cold-start heating and ice melting: in a low-temperature environment (-40C), a small amount of thin ice may form at the bottom of the separator, preventing the drain valve from opening normally. This product integrates PTC ceramic heating, which can quickly heat the bottom of the separator during low-temperature cold start to melt the thin ice, ensuring the drain valve opens normally at low temperature and guaranteeing a successful cold start of the fuel cell system. The heating plate rises from -40C to 40C in about 50s at 24V supply; with 0.2ml of water injected at the inlet, the ice-breaking time at -40C is about 45s.

The YJDV3122601 series uses a diaphragm structure and media isolation design, isolating the working medium from the electromagnetic drive part to effectively prevent impurities in the medium from affecting the life and reliability of the solenoid valve. Protection class IP68, meeting harsh vehicle waterproof and dustproof requirements. The product has undergone special oil and grease removal treatment to ensure safe operation in a hydrogen environment.

The product integrates an NTC temperature sensor (R25=10KOhm +/-1%), which can monitor the drain valve temperature in real time and provide accurate temperature data for the system control strategy.

Specifications:

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

Applications:

This product is widely used in the hydrogen circuit drainage system of various 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, combined heat and power)
• Hydrogen fuel cell ships
• Hydrogen fuel cell drones
• Fuel cell forklifts and port material handling equipment

Typical application position: installed at the drain port at the bottom of the water separator, periodically and quantitatively discharging the liquid water separated by the separator out of the system.

Company Advantages:

Shanghai Yibaijia Hydrogen Energy Technology Co., Ltd., as a professional hydrogen energy parts supply platform, distributes the YJDV3122601 series heated drain valves dedicated to fuel cells. The YJDV3122601 series integrates PTC ceramic heating, with fast low-temperature ice breaking, a response time <=30ms, working pressure 0~3barG, working temperature -40C~120C and protection class IP68. It uses a diaphragm media isolation structure and is equipped with an NTC temperature sensor for real-time temperature monitoring. The company 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.

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: Why does a fuel cell system need a heated drain valve?
A: After the water separator separates the liquid water in the hydrogen at the stack anode outlet, the water accumulates at the bottom of the separator. The role of the heated drain valve is to periodically and quantitatively discharge this water out of the system, preventing excessive water storage from affecting hydrogen recirculation efficiency and normal system operation.

Q5: What role does the heated drain valve play during low-temperature cold start?
A: In a low-temperature environment (-40C), a small amount of thin ice may form at the bottom of the separator, preventing the drain valve from opening normally. The PTC ceramic heating integrated in the heated drain valve can quickly heat and melt the ice during cold start, ensuring normal opening of the drain valve and guaranteeing a successful cold start of the fuel cell system.

Q6: How good is the heating performance of the heated drain valve?
A: PTC peak power 54W, PTC maximum temperature 150C. The heating plate rises from -40C to 40C in about 50s at 24V supply; with 0.2ml of water injected at the inlet, the ice-breaking time at -40C is about 45s.

Q7: Does the heated drain valve have a temperature sensor?
A: Yes. It integrates an NTC temperature sensor, R25=10KOhm +/-1%, for real-time monitoring of the drain valve temperature.

Q8: What certifications does the heated drain valve have?
A: The product has passed CE and ROHS certification.

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.