Kunshan Xinzhenpin New Thin Film Material Technology Co LTD.
| Air Permeability | Gurley：3 – 30 s/100ml @ 300 ml |
| Payment Terms | T/T |
| Color | White |
| Chemical Resistance | Corrosion-resistant，Acid-resistant |
| Moisture Vapor Transmission Rate | 8,000 – 18,000 g/m²·24h |
| 90° Peel Strength | ≥ 15 N/25mm |
| Delivery Time | 15 working days |
| Water Entry Pressure | ≥ 400 kPa |
| Thickness | 0.10 – 0.50 mm |
| Waterproof Rating | IP68 |
| Packaging Details | Small orders by express; bulk orders by FCL sea freight. |
| Supply Ability | Monthly Output: 300,000 sqm |
| Operating Temperature | -40°C to +150°C |
| Material Compliance | PFAS Free |
| Oleophobicity Grade | ≥ 7 |
| Size | Customizable |
| Brand Name | OEM/ODM |
| Place of Origin | China |
| Model Number | OEM/ODM |
| Certification | IATF16949/ISO |
View Detail Information
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Product Specification
| Air Permeability | Gurley：3 – 30 s/100ml @ 300 ml | Payment Terms | T/T |
| Color | White | Chemical Resistance | Corrosion-resistant，Acid-resistant |
| Moisture Vapor Transmission Rate | 8,000 – 18,000 g/m²·24h | 90° Peel Strength | ≥ 15 N/25mm |
| Delivery Time | 15 working days | Water Entry Pressure | ≥ 400 kPa |
| Thickness | 0.10 – 0.50 mm | Waterproof Rating | IP68 |
| Packaging Details | Small orders by express; bulk orders by FCL sea freight. | Supply Ability | Monthly Output: 300,000 sqm |
| Operating Temperature | -40°C to +150°C | Material Compliance | PFAS Free |
| Oleophobicity Grade | ≥ 7 | Size | Customizable |
| Brand Name | OEM/ODM | Place of Origin | China |
| Model Number | OEM/ODM | Certification | IATF16949/ISO |
| High Light | High Airflow Threaded Breather Vent ，M20 Bolt Type Waterproof Vent ，Eptfe Membrane Vent | ||
High Airflow Threaded Breather Vent with Waterproof Membrane M20 Bolt Type
This high airflow threaded breather vent features an M20 bolt-type body and a large-surface-area ePTFE membrane to deliver superior volumetric air exchange. It is engineered for enclosures with rapid temperature transients or large internal air volumes that require fast pressure equalization. The robust metal construction maintains IP68 waterproof integrity while handling demanding industrial and automotive environments.
Large gearboxes, hydraulic system tanks, and voluminous electronic enclosures experience rapid pressure changes that small vents cannot handle. Inadequate airflow leads to time-lag pressure differentials, which stress gaskets and cause oil foaming. High-flow applications also produce oil mist that can saturate standard membranes, clogging them and nullifying venting benefits.
The M20 high airflow vent bolt incorporates a significantly larger membrane area, achieving flow rates above 1200 ml/min. This ensures instantaneous pressure equalization even during aggressive thermal shocks. An integrated oleophobic treatment repels oil mist, keeping the membrane clear and maintaining high airflow over the vent’s service life. The heavy-duty metal cap protects against mechanical impact.
Thread: M20 x 1.5
Body: Zinc-plated steel or stainless steel
Membrane: ePTFE with oleophobic coating
Airflow: 1200 ml/min @ 70 mbar
Waterproof: IP68
Operating temperature: -40°C to 150°C
Effective membrane area: 380 mm²
Ideal for large industrial gearboxes, wind turbine yaw and pitch drives, hydraulic power pack reservoirs, large-scale battery cabinets, and climatic test chambers. Also suitable for off-highway axle housings experiencing severe mud and water exposure.
When internal pressure rises, air rushes out through the porous membrane with minimal resistance due to the enlarged area. When the enclosure cools, air rapidly returns. The oleophobic surface causes oil droplets to bead up and roll off, preserving airflow paths. The M20 thread provides a robust mechanical connection that withstands vibration and shock without loosening.
Determine the required venting rate by calculating your enclosure’s air volume and the maximum expected temperature slew rate. If oil mist is present, choose the oleophobic variant. For offshore or marine environments, specify 316 stainless steel. Ensure the housing has adequate wall thickness to support the M20 thread.
Q: How does oleophobicity work?
A: The ePTFE membrane is treated with a low surface energy coating that repels oils. This prevents formation of liquid films that would block pores.
Q: Can this vent be cleaned if oil mist eventually clogs it?
A: You can flush it gently with isopropyl alcohol and allow it to air dry. Avoid mechanical scrubbing.
Q: What is the maximum differential pressure this vent can handle?
A: It can continuously withstand 1 bar differential. For higher pressures, a burst disc option is required.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2018
Total Annual:
1,000,000-2,000,000
Employee Number:
30~50
Ecer Certification：
Verified Supplier
Kunshan Xinzhenpin New Thin Film Material Technology Co., Ltd. Established in 2018, Kunshan Xinzhenpin is a specialized manufacturer dedicated to ePTFE waterproof and breathable membrane solutions. We operate a fully integrated production chain covering ePTFE raw membrane manufacturing, composite a... Kunshan Xinzhenpin New Thin Film Material Technology Co., Ltd. Established in 2018, Kunshan Xinzhenpin is a specialized manufacturer dedicated to ePTFE waterproof and breathable membrane solutions. We operate a fully integrated production chain covering ePTFE raw membrane manufacturing, composite a...
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