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As a dedicated manufacturer of precision injection-molded components, Changzhou Hongxinyutai Precision Mold Co., Ltd. is proud to introduce our PP-T30 Injection Molded NEV Breather Valve – a critical component engineered specifically for modern battery thermal management systems. Our valve ensures reliable pressure equalization and moisture protection, directly contributing to the safety and longevity of new energy vehicle (NEV) battery packs. With our TS16969-certified manufacturing facility and experienced team, we deliver consistent quality that meets the rigorous demands of the automotive industry.
The PP-T30 Breather Valve is designed to maintain optimal internal pressure within battery enclosures while preventing the ingress of water, dust, and contaminants. This is essential for lithium-ion battery packs, where thermal runaway prevention and humidity control are critical. Our valve features a robust one-way membrane and a compact housing made from high-grade PP-T30 material, offering excellent chemical resistance, lightweight properties, and long-term durability.
Key Features & Technical Specifications
- Material: PP-T30 (Polypropylene T30) – UV stabilized, flame retardant, and recyclable.
- Operating Pressure Range: 0.5 kPa to 5 kPa (customizable).
- Air Flow Rate: ≥ 0.5 L/min at 1 kPa differential pressure.
- Water Ingress Protection: IP67 and IP69K rated (tested per IEC 60529).
- Thread/Snap-fit Design: Quick assembly, no special tools required.
- Operating Temperature: -40°C to +125°C continuous.
- Membrane Material: ePTFE (expanded polytetrafluoroethylene) – hydrophobic and oleophobic.
- Service Life: Designed for 10+ years / 300,000 km vehicle life.
| Parameter | Standard Value | Customization Options |
|---|---|---|
| Outer Diameter | 25 mm | 10–50 mm (upon request) |
| Mounting Height | 18 mm | 10–30 mm |
| Weight | 3.5 g | N/A |
| Membrane Pore Size | 0.2 μm | 0.1–0.5 μm |
| Housing Color | Black | Custom colors available |
| Certification | TS16969 | N/A |
Advantages for Your Battery Thermal Management System
- Pressure Equalization: Prevents housing deformation and seal failure due to internal pressure changes during charging/discharging and temperature fluctuations.
- Moisture & Contaminant Protection: The ePTFE membrane blocks liquid water (IP67) and fine dust particles while allowing air and vapor to pass, keeping the battery environment dry and clean.
- Extended Battery Life: Stable internal pressure and humidity reduce the risk of condensation, corrosion, and short circuits – directly improving battery cycle life.
- Lightweight & Compact: PP-T30 material reduces overall weight compared to metal or engineering plastics, contributing to vehicle efficiency.
- Easy Installation: Snap-fit or push-fit design allows for automated assembly, saving labor and cycle time.
- Cost-Effective: Injection molding process enables high-volume production with consistent quality and low unit cost.
Trust & Reliability
At Changzhou Hongxinyutai Precision Mold Co., Ltd., we have been manufacturing precision molds and injection-molded components since 2017. Our factory spans 1,000–3,000 square meters and is staffed by 51–100 skilled employees. We hold the TS16969 certification (automotive quality management system), ensuring every product meets strict automotive standards. Our main markets include North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. We are conveniently located in Changzhou, Jiangsu, China, with easy access to Jiangsu, Shanghai, and Shenzhen ports for efficient global shipping.
We are confident that our PP-T30 Injection Molded NEV Breather Valve will provide the performance and reliability your battery thermal management system demands. We offer customizable designs to meet specific dimensional, flow, or connector requirements. Contact us today for a quote, sample request, or technical discussion. Let us partner with you to power the future of electric mobility.
Frequently Asked Questions (FAQ)
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Q: What is the operating temperature range of this breather valve?
A: The standard valve is designed for continuous operation from -40°C to +125°C. Extended ranges are available upon request. -
Q: Can the valve be used in explosion-proof battery enclosures?
A: Yes, the valve helps equalize pressure without compromising the enclosure's integrity. However, for explosion-proof applications, additional flame arrestor features may be required – please consult our engineering team. -
Q: How does the valve prevent water ingress?
A: The integrated ePTFE membrane is hydrophobic and oleophobic, meaning it repels water and oil while allowing air to pass. The valve has been tested to IP67 (1m immersion) and IP69K (high-pressure washdown). -
Q: Is the valve reusable after removal?
A: The valve is designed for one-time installation. If removed, the snap-fit or press-fit mechanism may be damaged, and the membrane seal could be compromised. We recommend replacing the valve if servicing requires removal. -
Q: What is the typical lifespan of this valve?
A: The valve is designed to last the lifetime of the vehicle (10+ years or 300,000 km) under normal operating conditions. The membrane is resistant to aging and chemical exposure. -
Q: Can you provide samples for testing?
A: Yes, we offer free samples for qualified customers. Please contact us with your specifications and shipping address. Sample lead time is typically 5–7 working days. -
Q: Do you offer custom colors or laser marking?
A: Yes, we can customize the housing color and add laser marking (e.g., logo, part number, date code) as per your requirements. Minimum order quantities may apply. -
Q: What packaging options are available for bulk orders?
A: Standard packaging includes anti-static bags and carton boxes. We can also provide reel packaging for automated pick-and-place assembly. Please discuss your preferred packaging with our sales team.
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