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IP68 Waterproof Vent Plug Breather Valve for Outdoor Electronics Enclosures and Industrial Controllers 1

IP68 Waterproof Vent Plug Breather Valve for Outdoor Electronics Enclosures and Industrial Controllers 2

IP68 Waterproof Vent Plug Breather Valve for Outdoor Electronics Enclosures and Industrial Controllers 3

IP68 Waterproof Vent Plug Breather Valve for Outdoor Electronics Enclosures and Industrial Controllers

The HA series waterproof breather vent valve is designed for precision pressure regulation in sealed electronic and electrical housings. It plays a critical role in maintaining structural integrity of enclosures by eliminating internal pressure imbalance caused by temperature variation, altitude change, or equipment heating cycles.
Inside the valve, a microporous E-PTFE membrane acts as the core functional layer. This membrane creates a selective barrier that allows air molecules to pass freely while blocking liquid water, oil mist, and fine dust particles. As a result, internal components remain protected from corrosion and condensation-related damage.
The stainless steel housing enhances mechanical strength and ensures long-term resistance to environmental stress, including vibration, salt spray, and chemical exposure. Its threaded design allows easy installation across compact electronic systems.
This product is especially suitable for industrial automation systems, outdoor communication devices, power distribution cabinets, and intelligent sensing equipment where stable internal pressure is essential for long-term reliability.

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Key Application Fields

The IP68 Waterproof Vent Plug Breather Valve is designed for outdoor electronics enclosures and industrial controllers, ensuring optimal performance in harsh environments. Its robust seal prevents water and dust ingress, making it ideal for marine, agriculture, and industrial applications where reliability is crucial. Protect your equipment effortlessly!

● Telecom Infrastructure: 5G RRUs, fiber distribution boxes

● Energy Storage: Residential battery control boxes, PV combiner boxes

● Intelligent Transportation: ETC roadside units, traffic signal controllers

Technical Parameters

Parameter	Specification
Model	HA-4A
Thread Size	M4 × 0.7
Body Diameter / Wrench Size	8mm / 6mm
Installation Height / Thread Length	8mm / 4mm
Airflow Rate	3ml/min (at ΔP=1KPa)
Water Entry Pressure	-120mbar (>1m water column)
Operating Temperature	-50°C ~ +150°C
Material	Stainless Steel + E-PTFE
Ingress Protection	IP68 & IP67

Core Advantages

IP68 Waterproof Vent Plug Breather Valve for Outdoor Electronics Enclosures and Industrial Controllers 5

COMPROMISED PROTECTION WITHOUT COMPROMISE

Though positioned as an economical model,it stil employs fullstainless steel housingand genuine E-PTFE membrane-not inferiosubstitutes. IP68 rating ensures the internalcavity remains absolutely dry under heavyrain, high-pressure water jets, or even short term submersion.

COMPROMISED PROTECTION WITHOUT COMPROMISE

Though positioned as an economical model, it still employs full stainless steel housing and genuine E-PTFE membrane—not inferior substitutes. IP68 rating ensures the internal cavity remains absolutely dry under heavy rain, high-pressure water jets, or even short-term submersion.

Flexible Temperature Adaptability

After 500-hour extreme storage tests at -50°C and +150°C, the O-ring (3.0mm ID × 1.5mm CS) shows no hardening or cracking, and the membrane exhibits no embrittlement or shrinkage, ensuring ready-to-use performance even after harsh transport and storage.

Extended Service Life

The E-PTFE membrane features self-cleaning surface properties that resist dust and oil adhesion. Under normal outdoor conditions, the valve's design life exceeds 10 years, matching most industrial equipment renewal cycles and significantly reducing maintenance frequency.

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