MILVENT® Automotive Powertrain Vent Datasheet

1. Product Overview

MILVENT® Automotive Powertrain Vents are specifically developed for both traditional and electrified powertrain components, offering high-performance and durable protection through two core mounting solutions: push-fit type (Model: MIV-PTV-6-8) and snap-fit type (Model: MIV-PTV-7.9). Addressing the issue where powertrain components, due to compact packaging, are placed close to the road surface and thus vulnerable to extreme weather, water submersion, and road contaminants that compromise reliability, this vent effectively overcomes pain points throughout the design, validation, and protection process to ensure stable component operation.

2. Typical Applications

• Transfer Case

• Power Transfer Unit

• Solid Beam

• Rear/Front Drive Module

• Transmission

• Axles

• Limited-Slip Coupling

• Traction Motors

• Electronic Limited-Slip Differentials (E-LSDs)

3. Core Advantages

1. Enhanced Component Reliability

The vent is equipped with a dedicated MILVENT® membrane that efficiently blocks harmful contaminants, protecting oil-cooled motors and electric drive components. It also integrates a pre-filter to trap internal oil aerosols, preventing premature damage to unprotected membranes and significantly extending the service life of components.

2. Guaranteed Seal Integrity

Even under extreme working conditions such as high temperatures and vibrations, the breathable MILVENT® membrane rapidly balances the internal and external pressure of components, avoiding seal deformation or leakage caused by pressure overload and reducing maintenance costs.

3. Compliance with Global OEM Standards

The product performance fully meets the strict requirements of major original equipment manufacturers (OEMs) regarding water wading depth and fluid containment. It is adaptable to regulations and application scenarios in different regions, enabling compliant application without additional adjustments.

4. Streamlined Processes and Shortened Cycles

The waterproof design prevents water wading test failures caused by vent-related issues, reducing the time and cost of engineering redesigns and accelerating product development and market launch.

5. Full-Lifecycle Technical Support

Backed by MILVENT's global technical network, we provide customers with end-to-end support from design selection and installation guidance to after-sales maintenance, ensuring efficient application implementation.

4. Product Models and Core Specifications

(1) Model Correspondence

(2) Performance Specifications

*IPX9K Test Parameters: Pressure = 80 bar, Test Distance = 150 mm, Temperature = 75°C

(3) Structural Dimensions (Unit: mm)

(4) Material Composition

5. Installation and Positioning Requirements

1. Key Sealing Surface Specifications

• Surface Roughness: Rz 6.3

• Dimensional Tolerance: 12.0 (0.0/-0.1), 6.7 (0.0/-0.3), 3.0±0.1, 7.9±0.1

• Chamfer Requirement: 0.5×45°±5°, 1.0×45°±5°

2. Installation Space Requirements

Sufficient space must be reserved inside the component housing to ensure the snap legs of the snap-fit vent fully deploy and the adaptation structure of the push-fit vent is securely installed, avoiding any impact on sealing performance.

3. Recommended Installation Angle

Vertical installation is recommended, or installation within ±60° of the vertical direction, to optimize ventilation efficiency and protection performance.

4. Additional Requirements for Push-Fit Type (MIV-PTV-6-8)

• Recommended Hose Inner Diameter: 6.0~8.0 mm

• Hose Wall Thickness: 3.0 mm

• The hose material should be selected by the supplier based on actual working conditions (e.g., temperature, medium) to ensure optimal performance.

6. Unique Features of Each Model

1. Snap-Fit Type (MIV-PTV-7.9)

• Compact, low-profile design, suitable for space-constrained electric drive systems and motor applications;

• Direct snap-fit installation, no complex tools required, simplifying procurement and assembly processes and improving production efficiency.

2. Push-Fit Type (MIV-PTV-6-8)

• Can be positioned away from high-temperature areas and lubricant sources via hoses, reducing the impact of the environment on vent performance;

• Flexible hose routing, compatible with traditional powertrain layouts, and easy replacement and maintenance, lowering downtime costs.

7. About MILVENT

MILVENT is an enterprise specializing in materials science and industrial protection solutions. It focuses on solving technical challenges in extreme environments, with products widely used in precision machinery, automotive powertrains, and other fields. Relying on a professional R&D team and global production bases, MILVENT is committed to providing customers with high-quality, customized protection products to drive industry efficiency improvement and technological upgrading.

Contact Information

• Contact Phone: +8618218369198

• Official Email: milvent@milvent.com

• Business Liaison Email: Jacky.Huang@milvalve.com

Important Notice

1. This product is for industrial use only and is not suitable for manufacturing, processing, or packaging operations in the food, pharmaceutical, cosmetic, or medical device industries;

2. The technical information contained herein is based on MILVENT's past experience and test results. Every effort is made to ensure accuracy, but no legal liability is assumed. Customers must verify the suitability of the product for specific applications on their own;

3. Product specifications and information are subject to change due to technological upgrades and shall not be used as the basis for final procurement. Specific terms shall be subject to the sales contract;

4. MILVENT is certified to IATF 16949, ISO 9001, and ISO 14001 standards;

5. MILVENT and related logos are trademarks of MILVENT. © 2024 MILVENT. All rights reserved.

MILVENT® Powertrain Enclosure Protection Vent Datasheet (Supplementary Series)

1. Product Introduction

MILVENT® Powertrain Enclosure Protection Vents adopt an integrated "filtration + ventilation" technology, with core adaptation to snap-fit (MIV-PTV-7.9) and push-fit (MIV-PTV-6-8) mounting methods. The oleophobic and hydrophobic MILVENT FILTER balances pressure and blocks water, dust, and road salt, while the patented MILVENT pre-filter traps and recirculates oil aerosols to ensure stable component operation. This design also simplifies product design and reduces manufacturing costs.

2. Typical Applications

• Transmissions

• Axles / Differentials

• Power Transfer Units / Transfer Cases

• Limited Slip Couplings / E-LSDs

• Traction Motors

3. Product Features and Advantages

1. Dual-Effect Protection, Reliable Performance: MILVENT FILTER achieves pressure balance and contaminant blocking, while the MILVENT pre-filter recirculates oil aerosols to prevent component performance degradation;

2. Cost Optimization, Simplified Design: Reduces the number of components, lowers assembly complexity, and shortens the production cycle;

3. Flexible Installation, Strong Adaptability: Two standard mounting methods are compatible with different powertrain designs, and core technologies can be customized according to specific needs;

4. Adaptation to Harsh Environments: The hydrophobic design allows the vent to be installed below the vehicle's water wading line, eliminating the need for complex hose arrangements and withstanding harsh conditions such as towing, water submersion, and ice/snow.

4. Standard Installation Design and Dimensions (Unit: mm)

1. Characteristics of Mounting Types

• Snap-Fit Type (MIV-PTV-7.9): Directly snaps into the component housing, featuring a compact, low-profile design that reduces installation space;

• Push-Fit Type (MIV-PTV-6-8): Installed at the end of a hose, compatible with existing powertrain layouts, shortening hose length and simplifying components.

2. Dimension Specifications

5. Product Models and Detailed Specifications

*Note: MILVENT FILTER is a high-airflow dedicated filter media; the MILVENT pre-filter is an oleophobic coalescing media that efficiently traps and recirculates oil particles.

6. Product Design Highlights

1. Tight-fitting structure between the cap and body enhances installation stability and overall sealing performance;

2. Sloped inlet design facilitates water drainage and prevents damage to the vent from high-pressure spray;

3. Ribbed protection structure reduces the risk of water ingress, making it suitable for humid and dusty environments;

4. Patented MILVENT coalescing pre-filter enables oil aerosol recovery, avoiding resource waste and environmental pollution;

5. The compact snap-fit design saves space, while the push-fit design is compatible with existing hose layouts, reducing modification costs.

7. MILVENT Quality and Service Commitment

MILVENT is certified to IATF 16949:2016 and adheres to high-quality manufacturing standards. It can provide customized solutions according to customer needs to ensure the product is easily integrated into equipment or applications. Relying on unique patented filtration technology and oleophobic treatment processes, MILVENT selects optimal materials to match different working conditions.

As a globally leading supplier of filtration and protection products, MILVENT has production and sales bases in North America, Europe, and Asia. It is committed to providing customers with professional and efficient problem-solving solutions and becoming a long-term and reliable partner.

Contact Information

• Contact Phone: +8618218369198

• Official Email: milvent@milvent.com

• Business Liaison Email: Jacky.Huang@milvalve.com

Important Notice

1. The use and performance of the product are affected by customer-controlled factors such as application environment and installation method. Customers must evaluate the suitability of the product for specific scenarios on their own. MILVENT shall not be liable for damages caused by improper use;

2. Product specifications, supply status, and technical parameters are subject to change due to upgrades and may vary by region. No prior notice will be given for updates;

3. MILVENT and related logos are trademarks of MILVENT. Other logos belong to their respective owners. © 2013-2024 MILVENT. All rights reserved.