Corrosion-Resistant Vent Valve

The Corrosion-Resistant Vent Valve from PUW is specifically engineered to meet the demanding requirements of new energy vehicle battery packs and other harsh industrial environments. Made from high-quality aluminum with an anti-oxidation coating, this valve offers superior hardness and corrosion resistance, protecting against acids, alkalis, and environmental wear. It features a dual-channel design for efficient ventilation and rapid pressure relief, ensuring pressure balance and safety. With a protection rating of up to IP68, the valve is highly durable and reliable. It also supports customizable explosion-proof points and precise orientation control, tailored to customer specifications. Backed by multiple patents and certifications like ISO and IATF16949, this valve is manufactured to international standards, providing a versatile and robust solution for a variety of applications.

Features

High Corrosion Resistance

Made from acid/alkali-resistant plastics or stainless steel, combined with chemically inert PTFE membranes. Proven to withstand salt spray, acid rain, chemical vapors, and more.

Durable in Harsh Conditions

Performs reliably in extreme heat, cold, UV exposure, and fluctuating humidity. Suitable for enclosures deployed in remote or outdoor environments.

Long-Term Performance

Non-clogging membranes maintain consistent airflow over time. High-performance seal structures protect internal electronics and machinery from moisture and corrosion-related damage.

Customizable for Your Project

Available in multiple sizes, mounting types (threaded, snap-in), and airflow rates. Support for color and branding customization, OEM/ODM welcome.

How It Works – Intelligent Venting System

PUW corrosion-resistant vent valves feature a hydrophobic or oleophobic PTFE membrane embedded within a sealed housing. The membrane’s microstructure:

• Allows pressure-causing gases (air) to pass through

• Blocks ingress of water, dust, oil, and corrosive agents

• Resists degradation caused by acid, base, solvents, or saline conditions

This keeps sensitive enclosures dry and structurally intact, especially in corrosive environments.

Application Areas

PUW corrosion-resistant vent valves are widely used in enclosures where corrosion resistance is critical, including:

Marine & Offshore Equipment

Withstands salt spray, seawater vapor, and high humidity. Ideal for control panels, battery housings, and lighting enclosures on ships or docks.

Chemical Processing Equipment

Used in environments exposed to acid/base vapors or solvent fumes, including sensors, detectors, and process control enclosures.

Outdoor Power Systems

Protects solar inverters, battery packs, junction boxes, and power distribution cabinets exposed to UV, rain, and chemical air pollution.

EV & Energy Storage Systems

Ensures long-term pressure balance and chemical protection in lithium battery packs operating in corrosive or high-heat environments.

Agricultural Machinery & Irrigation Systems

Prevents water, mud, and fertilizer-related corrosion in control systems or motor enclosures.