Rubber-metal valve is made of metal (brass) tubes and rubber cone formed, this rubber cone with the base to form a whole, base metal valve can replace the necessary 　　valve pad. The inner and outer metal sleeve has a threaded, so you can use the standard valve core and cap. In order to combine with the rubber during vulcanization well, the base made of metal pipe with an annular groove.

　　Rubber-metal valve over the whole metal valve has many advantages, so the rubber valve has been widely used. The main advantages are as follows:

    A rubber valve is used to pad the bottom valve fixed on the inner tube curing method, so it has a great combination of flexibility and tightness.

    2 conical valve tube can be placed upright in the rim, and no valve hole near done. When the car is driving, such as tube is damaged (if there is not perforated), valve will slowly penetrate into the interior of the tire, tubeless tires will not damage the wall. Nuts fixed on the rim of the metal valve, in case of the above, it will make the tube rupture.

    3 rubber-metal valve is much lighter than the metal valve, such as the weight of the rubber metal valve 20 to 25 grams, the weight of the corresponding metal with this valve, and 50 to 55 grams of the metal used to make weight valve fixed on the tube valve pad is also up 15 to 16 grams. Therefore, the use of rubber-metal valve can narrow tube unbalance.

    4 Use the rubber-metal valve, can reduce a lot of non-ferrous metals consumption.

    5 When using a rubber valve or plastic valve base package can be attached to the tube without the use of a valve reinforcement mat.