Plastic Vent Valve

The PUWM5*0.8-4 Plastic Vent Valve from PUW is a high-performance ventilation and protection component designed for demanding industrial and outdoor environments. Engineered with high-strength PC material and advanced membrane-venting technology, this Plastic Vent Valve delivers exceptional waterproofing, pressure relief, and long-term durability. As a trusted Plastic Vent Valve Manufacturer and Plastic Vent Valve Supplier, PUW provides reliable Waterproof Vent Solutions for global industries.

Modern electronic and outdoor equipment require efficient ventilation without compromising environmental protection. The PUWM5*0.8-4 meets this need by functioning simultaneously as a Waterproof Vent Valve, Plastic Air Vent Valve, Plastic Breather Valve, and Plastic Pressure Relief Valve. Its breathable membrane enables precise pressure equalization while preventing water, dust, and contaminants from entering the enclosure.

With an IP67/IP68/IP6K9K protection rating, this Plastic Venting Valve ensures stable operation of sealed devices in harsh conditions. It is widely used in LED lighting, automotive electronics, communication devices, solar equipment, and security systems. PUW also supports Custom Vent Valve designs and OEM Vent Valve production to meet specialized project requirements.

Key Features (Automation, Precision, Reliability)

1. Waterproof & Breathable Protection

The valve integrates an advanced hydrophobic and breathable membrane structure that delivers:

• High airflow for stable pressure equalization

• Superior water and dust resistance in enclosed systems

• Effective anti-fog, anti-condensation protection

This combination allows the valve to operate both as a Plastic One-Way Vent Valve and a reliable Industrial Vent Valve for long-term outdoor use.

2. Dual Environmental Protection Ratings

• IP67 with air permeability 300–900 ml/min @ 7kPa

• IP68/IP6K9K with air permeability 20–100 ml/min @ 7kPa

These options offer optimized balance between airflow and sealing demands across various applications.

3. High Durability for Harsh Environments

• Temperature resistance: –40°C to +110°C

• Corrosion-, acid-, and alkali-resistant

• Impact-resistant PC housing

• Flame retardancy rating: UL94-V0

Designed for continuous operation under mechanical stress, UV exposure, and heavy outdoor conditions.

4. Easy & Secure Threaded Installation

• Thread length: 4mm

• Installation torque: 4 kgf.cm

• Stable and vibration-resistant mounting

• Available in black and off-white options

Applications

The Plastic Vent Valve is trusted by manufacturers and integrators across multiple industries, including:

• LED Outdoor Lighting – Prevents moisture accumulation and fogging in sealed housings

• Automotive Manufacturing – Used in headlights, sensors, ECUs, and battery enclosures

• Solar Photovoltaic Equipment – Extends the service life of sealed electrical components

• Electronics & Electrical Devices – Ensures internal pressure balance in enclosures

• Communication Equipment – Prevents internal condensation in sensitive hardware

• Security Systems – Enhances the reliability of outdoor and ruggedized installations

FAQ

1. What does a Plastic Vent Valve do?

A Plastic Vent Valve enables pressure equalization inside sealed enclosures while preventing water, dust, and contaminants from entering. It improves lifespan and reliability of sensitive equipment.

2. What is the material of the valve?

The PUWM5*0.8-4 is made from premium PC (Polycarbonate) with excellent durability, impact resistance, and UL94-V0 flame retardancy.

3. Can it withstand extreme environments?

Yes. The valve operates between –40°C and +110°C, making it ideal for outdoor and industrial applications.

4. What waterproof level does it support?

• IP67

• IP68

• IP6K9K (high-pressure water jets)

5. Which industries commonly use PUW vent valves?

LED lighting, automotive manufacturing, photovoltaics, electronics, communication equipment, and security systems.