Moken (Xiamen) Industrial Co., Ltd.
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O-Ring for Water Purifier and Direct Drinking Faucet - Quality China Suppliers & Factory Products

Product Features
- **Sealing Performance**: Our O-rings, manufactured in China, excel at preventing water leaks in water purifiers and direct drinking faucets, ensuring a reliable flow of water along the designated path.
- **Elasticity**: Designed with superior elasticity, these O-rings compress and conform to the sealing surfaces upon installation, effectively managing small gaps between various components.
- **Chemical Stability**: Our O-rings exhibit excellent resistance to common water chemicals, including chlorine, amines, acids, and bases. This durability ensures they remain corrosion-free and maintain integrity in clean water environments. As a leading supplier and factory in the industry, we guarantee the quality and performance of our products.

    Features

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    Usage temperature

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    -Generally speaking, O-rings commonly used in water purifiers and direct drinking faucets, such as those made of ethylene propylene diene monomer (EPDM) material, can work in the range of -40 ℃ to 150 ℃ and can stably perform in household water environments at room temperature (5 ℃ -35 ℃). The working temperature range of nitrile rubber (NBR) material is usually between -40 ℃ and 120 ℃, which is suitable for water purification processes that generally do not come into contact with high-temperature hot water.
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    Application environment

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    -Mainly used in water purification equipment and supporting direct drinking faucets in homes, offices, and other places. The environment is relatively mild and mainly comes into contact with municipal water that has been preliminarily treated or filtered by water purifiers. The pressure is generally within the normal range of household water supply pressure (about 0.1-0.6 MPa).

    Application & Advantages

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    Application scenarios

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    -In water purifiers, O-rings are commonly used at filter interfaces, inlet and outlet ports, and water storage tank connections to prevent water leakage, ensure filtration efficiency, and ensure normal equipment operation.
    -In direct drinking faucets, O-rings are generally installed on valve cores, water outlets, and other parts to ensure sealing when the faucet is turned on and off, prevent water leakage, and ensure the hygiene and normal supply of drinking water.
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    Advantages and disadvantages

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    -Advantages: Simple structure, easy installation, and low cost; Good sealing effect, can effectively prevent water leakage; Diverse size specifications to meet the needs of different devices; Wide range of material selection, able to choose suitable materials according to different application environments.
    -Disadvantages: Long term use may lead to a decrease in sealing performance due to aging and wear; High requirements are placed on the flatness and cleanliness of the installation surface, otherwise it may affect the sealing effect; Performance degradation or damage may occur in environments with high temperatures, high pressures, or special chemical substances.

    Material selection & Effect

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    Material selection

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    -Ethylene propylene diene monomer (EPDM): good water resistance, good resistance to hot water and steam, strong anti-aging performance, good chemical stability, and resistance to some chemicals in water, suitable for use in parts contacting hot water, such as hot water purifiers or hot water channels of direct drinking faucets.
    -Nitrile rubber (NBR): Outstanding oil resistance, although mainly used in environments that come into contact with oil, it is also suitable for parts that have certain requirements for oil resistance (such as parts that may come into contact with a small amount of oil) or do not come into contact with high-temperature hot water in the field of water purification, with relatively low cost.
    -Silicone rubber (VMQ): It has excellent high and low temperature resistance, can work in the temperature range of -60 ℃ to 200 ℃, is non-toxic and odorless, meets drinking water hygiene standards, and is commonly used in key sealing parts that come into direct contact with drinking water.
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    Effect

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    -The main function is to seal and prevent water leakage during the operation of the water purifier and direct drinking faucet, ensuring the normal operation of the equipment and the hygiene and safety of drinking water. At the same time, good sealing can maintain stable pressure inside the equipment, improving its service life and performance.

    Frequently Asked Questions

    1. What is the typical temperature range for EPDM O-rings?

    EPDM O-rings commonly used in water purifiers and direct drinking faucets can operate reliably within a temperature range of -40 ℃ to 150 ℃, and offer stable performance in household water environments at room temperature (5 ℃ -35 ℃).

    2. When should NBR O-rings be used instead of EPDM?

    Nitrile rubber (NBR) O-rings operate between -40 ℃ and 120 ℃. They are suitable for standard water purification processes that do not contact high-temperature hot water, and are ideal when cost-efficiency or minor oil resistance is required.

    3. Where are O-rings installed in water purifiers and direct drinking faucets?

    In water purifiers, they are used at filter interfaces, inlet/outlet ports, and water storage tank connections. In direct drinking faucets, they are typically installed on valve cores and water outlets to ensure reliable sealing.

    4. What are the main advantages of using O-rings in water systems?

    O-rings offer a simple structure, easy installation, low cost, and highly effective sealing to prevent leaks. They are available in diverse size specifications and materials to suit various application environments.

    5. Why is Silicone rubber (VMQ) chosen for direct drinking water applications?

    Silicone rubber (VMQ) has excellent high and low temperature resistance (-60 ℃ to 200 ℃), is non-toxic and odorless, and strictly meets drinking water hygiene standards, making it the perfect choice for contact with drinking water.

    6. What causes O-ring sealing performance to degrade?

    Long-term usage leads to aging and wear. Additionally, poor flatness or cleanliness of the installation surface, as well as extreme temperatures, high pressures, or special chemicals, can degrade or damage the seal.

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