Moken (Xiamen) Industrial Co., Ltd.
mk_potter@mkseal.com
Leave Your Message
The O-ring of the hot and cold valve core (1).jpg
The O-ring of the hot and cold valve core (4).jpg
The O-ring of the hot and cold valve core (2).jpg
The O-ring of the hot and cold valve core (3).jpg

The O-Ring of the Hot and Cold Valve Core Is a Key Component Used for the Sealing of the Hot and Cold Valve Core

Material Selection
- Nitrile butadiene rubber (NBR): It has good oil resistance, abrasion resistance, heat resistance, as well as certain elasticity and mechanical strength. The general working temperature range is from -40°C to 120°C. It is often used in the environment of hot and cold valve cores that are in contact with oil or have certain requirements for oil resistance.
- Ethylene propylene diene monomer (EPDM) rubber: It has excellent ozone resistance, weather resistance, and heat resistance, and has good tolerance to hot water, brake fluid, etc. The working temperature is -45°C to 130°C (sulfur vulcanization) and -50°C to 150°C (peroxide vulcanization). It is suitable for the sealing of hot and cold valve cores in contact with hot water, such as the valve core sealing of solar water heaters and hot water pipelines.
- Fluororubber (FKM): It has excellent oil resistance, chemical resistance, and heat resistance, and can work continuously at a temperature range from -15°C to 200°C. It can resist strong acids, strong alkalis, etc., and is used for hot and cold valve cores with high requirements for temperature resistance and corrosion resistance.

    Contact us

    Functions and Importance & Special Properties

    • The O-ring of the hot and cold valve core (1)

      Functions and Importance

      01
      - Ensure sealing performance: Prevent the cross-flow of hot and cold water inside the valve core and leakage from the connection between the valve core and the valve body, ensuring that the water flow follows the set path and enabling the accurate adjustment and distribution of hot and cold water.
      - Extend the service life: Good sealing can avoid the erosion of water on the valve core and surrounding components, reduce wear and corrosion, and prolong the service life of the hot and cold valve core and the entire water system.
      - Improve the performance of use: It helps to maintain a stable water pressure and water flow, allowing users to accurately adjust the mixing ratio of hot and cold water to obtain a comfortable water temperature.
    • The O-ring of the hot and cold valve core (2)

      Special Properties

      02
      - Good elasticity: It can be compressed and deformed during installation, closely fitting the sealing surface. When the pressure changes, it can also maintain the seal through elastic deformation.
      - Bi-directional sealing: Regardless of the direction from which the pressure of hot and cold media is applied, it can effectively seal to prevent the cross-flow and leakage of hot and cold media.
      - Chemical corrosion resistance: It can resist some chemical substances in hot and cold water. The corrosion resistance of different materials varies, and fluororubber and ethylene propylene diene monomer rubber perform better.

    Application Environments and Scenarios 

    • The O-ring of the hot and cold valve core (3)
      01
      - Household bathroom: For example, in the hot and cold valve cores of faucets, showerheads, water heaters, etc., it controls the mixing and distribution of hot and cold water and prevents water leakage.
      - Heating, ventilation and air conditioning (HVAC) system: In the hot and cold valve cores of equipment such as fan coil motorized valves and thermostatic valves, it ensures that the system can accurately adjust the water temperature and maintain a stable room temperature.
      - Industrial field: In some equipment that requires precise control of hot and cold fluids, such as the valve core sealing of heat exchangers and cooling systems.

    Other Aspects & Precautions for Use

    • The O-ring of the hot and cold valve core (4)

      Other Aspects

      01
      - Easy installation: It is small in size and simple in shape. During installation, it only needs to be placed in the sealing groove of the hot and cold valve core.
      - Low cost: The manufacturing process is mature, the material cost is not high, the overall cost performance is high, and the replacement cost is also low.
      - Diverse specifications: According to the different sizes and sealing requirements of hot and cold valve cores, there are various specifications and sizes available for selection.
    • The O-ring of the hot and cold valve core (1)

      Precautions for Use

      02
      - Before installation: Check whether the O-ring has any defects and whether the size meets the requirements. At the same time, ensure that the installation surface is flat, smooth, and free of sharp edges and burrs.
      - During use: Pay attention to whether the temperature, pressure and other conditions of the use environment meet the tolerance range of the O-ring material, and avoid over-temperature and over-pressure conditions that may lead to seal failure. 

    Leave Your Message