O-Ring for Water Purifier and Direct Drinking Faucet - Quality China Suppliers & Factory Products
Features
Usage temperature
01
Application environment
02Application & Advantages
Application scenarios
01
Advantages and disadvantages
02Material selection & Effect
Material selection
01
Effect
02Frequently 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.




