Product Introduction
SDA Shangda plastic waterproof and breathable valve is a new type of waterproof and breathable component. It adopts imported polymer expanded polytetrafluoroethylene microporous film e-PTFE through injection molding, hot melt welding and other forms, combined with plastic, silicone rubber and other materials to form a sealed installation component. It can effectively prevent water, dust and other pollution, and its air permeability can balance the internal and external pres
| Product Parameter Description | Product Size |
| product series: waterproof ventilation valve | |
| product model: SD-SK11-3.9 |  |
| installation type: snap type | |
| material: plastic (PC) | |
| color: black | |
| protection class: IP67/ IP68/IP69K | |
| air permeability: 100~1500 ml/min @ 7KPa | |
| flame retardant grade: UL94 V-0 | |
| working temperature: -40~110 ℃ | |
| installation strength: 50N | |
| applications: automotive (electronic control, electric drive, battery PACK), battery pack, photovoltaic energy storage, electronic communications, LED outdoor lighting, security equipment, etc. | |
| Note: SDA Shangda Company can customize its products (air permeability, protection grade and color) according to customer requirements with market value as the core. | |
| products: 1. High structural strength: the shell is made of reinforced, flame-retardant engineering plastics, with high installation tightness and reliability; 2. Stable performance: polymer e-PTFE materials with chemical, thermal stability and mechanical flexibility, can meet the harsh environment. 3. Strong sealing: It can effectively prevent foreign matters such as water, dust and tiny particles from entering the inside of the shell, ensuring the components and working environment inside the product, and the protection level can meet IP67/IP68. 4. Large air permeability: It can quickly balance the internal and external pressure difference of the sealing parts, reduce the stress of the sealing parts and heat dissipation, and improve the reliability and service life of the parts. 5. Easy installation: The installation design can be opened with chamfered through holes, which can be inserted by vertical pressing. |
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| working principle description:
waterproof breathable valve using puffed polytetrafluoroethylene e-PTFE as a waterproof breathable membrane body, its microscopic microporous structure, through the gas and liquid and dust particles of the molecular diameter difference, so that gas molecules can flow through, and liquid, dust molecules larger diameter can not flow through, so as to achieve waterproof, dustproof, heat filtration, pressure relief breathable function. |
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| product performance description:
1. polymer expanded polytetrafluoroethylene microporous film (e-PTFE), with breathable and moisture permeability, sealing, high lubrication, acid and alkali resistance, corrosion resistance, high temperature resistance and anti-aging characteristics. 2. Its air permeability can balance the pressure difference of the sealed housings such as auto parts, car lights, ECU electronic control units, batteries, motors, motors, sensors, etc., reduce the stress of the sealing strip, and at the same time have the effect of heat dissipation; improve equipment and products Service life and reliability. 3. its moisture permeability can discharge the internal water molecules in the equipment and products, reduce the relative humidity, reduce condensation and maintain working conditions. 4. its sealing can effectively prevent water, dust and small particles and other foreign matter into the shell, to ensure the internal components and working environment. 5. Its chemical stability and high lubrication can ensure the service life and reliability, and meet the use environment and protection requirements of equipment and products. |
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