Tire Valve Blog
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China tire tool for domestic and foreign Tubeless Valve industry to provide information services and information exchanges between the professional industry website, was founded in 2011 November. China Tubeless Valve integrated tire tool resources, supply information, buy information, industry consulting. The user business effective, accurate matching and released, in the online publication of any business, tire tool production enterprises proxy user can in the first time to know this business opportunities. China tire tool ‘s superiority is the tire tool vertical subdivision and specialization, integration of the whole Tubeless Valve industry chain, combined with a unique internet services and on tire series of products marketing, the social needs of the depth of excavation, the site of the new breakthrough of industry.

These instructions explain how to install and remove a tubeless-type valve stem with a tubeless-compatible rim. To open the air valve, follow the instructions for the valve type on your bicycle.

To Install The Valve Stem
1. Center the tubeless rim strip in the rim, and align the valve holes of the rim strip and rim.
2. With the slot on the head of the Tubeless Valve aligned with the rim (Figure 1), press the valve stem through the rim strip and the rim.
3. Thread the valve stem nut (Figure 1) onto the valve, and tighten firmly by hand. There should be no gap between the valve and the rim strip.
Use your fingers to tighten the valve nut. Don�t use pliers�if you puncture on the trail, you will have to be able to remove the nut by hand.

4. Make sure the rim strip is smooth, even, and centered in the rim well.
FIGURE 1:
Tubeless Valve stem
To Remove The Valve Stem
1. Remove the valve stem nut (Figure 1).
2. Thread the presta nut into the valve stem (to the Closed position).
3. Push the stem out of the rim.

1, Overview: the function of valves is sufficient to deflate the tire and to maintain the seal after the tire inflation, regular valve from the valve body, valve core and valve cap of three main parts. .
2, the action: for tire charge and discharge of gas or liquid, and can maintain and test the internal pressure of the one-way valve (check valve).
Installed on the inner tube tires inner tubes, and tubeless tires mounted on rims.
3, Category: There are 5 valves classification,
One is by use: driving valve, motorcycles, electric cars valve, valve cars, trucks, buses valve, valve agricultural engineering vehicles, special valve and so on.
Divided according to whether two types of inner tube:
Inner tube valve tube valve and valve tubeless tubeless valve
Assembly by way of three points:
Screw-mounted valve screw-on universal valve, Clamp valve clamp-in valve and valve snap snap-in valve.
Four points by the size of core cavity: general core cavity valve ordinary core chamber valve and large core cavity valve large core chamber valve.
Tire Valve core divided by five: English mouth dunlop / woods valve, American mouth Schrader valve, French mouth presta valve, German and Italian mouth mouth
Tire Valve according to the structure can be divided into rubber pad with metal valves and metal valve types. The former used car tire inner tube, which is mainly used in truck tires. Tubeless Valve of the internal structure of the same ordinary valve.
Standard profiles
GB1796 provisions of this part of the snap-in valves of the terms and definitions, model mark, the structure, parts of the structure, size and materials, appearance, mouth and body rubber hardness, assembly performance, the combination of rubber and metal, sealing, anti-Ozone capacity, blasting, flex resistance, test methods, inspection rules, labeling, packaging and storage
This section applies to valve hole diameter 11.3mm maximum pressure 475kPa and the valve hole diameter of 15.7mm maximum pressure 450kPa in tubeless tire valves.
Ningbo Yinzhou Xinghua Metal Parts Factory is one of professional manufacturer in China for more than ten years. We export tire
valves, tire repair tools, tire gauges, wheelweights, passenger car tire valves, passenger car tire valve and cold patch to many
country in world. Such as USA, Holland, Rusia, Singapore, Thailand, South Africa and so on. Our production lines is to meet with
the worldwide orders. At meantime, we induct ISO system to make good C.I.S. to meet the current marketing requirements. As
increasing your profit and bring you a prosperous business, we can submit you best services: GOOD QUALITY, COMPETITIVE PRICE,
DELIVER ON TIME, INNOVATIVE PRODUCTS. ABLE have a foresight program of new products, passenger car tire valves, passenger car
tire valve. Hereby, we look forward to growing up with you and to bring you great profits.

World rubber industry, especially the rapid development of China’s tire industry for our Tire Valve core provides a steady flow of orders. Valve core of the industry to seize the development opportunities, product variety and quantity in recent years, continuous and steady increase, the main valve core product categories account for the output of more than 70% global share, becoming the world’s largest producer of valve core. Valve at the recently held general learned the core industries, output in 2010 will exceed our valve 3 billion, will exceed 3.5 billion valve core, valve core will account for more than 85% market share.Industry enterprises have reached a consensus: should not revel in the production of hegemony in the world on, but should correctly understand and face the problems the industry, improve quality, eliminate hidden dangers and do a responsible “world business. ” China Chemical Equipment Association Professional Committee of the valve core Li Dongping that the valve core in recent years, exports of the number of varieties grown rapidly, the core business of most of the valve more than 60% of products sold in international markets, and gradually entered the international Auto parts procurement system. China has become a truly world largest output valve core, the largest production base for exports.This course is a happy event, but must also see that the momentum of our strong export valve has shaken the core of the existing pattern of world trade. Hand, in this case does not dismiss the possibility of some countries for the purpose of trade protectionism, by building out a variety of barriers to prevent Chinese products, manufacturing, international trade discord; the other, the individual is more awareness of domestic corporate social responsibility Weak, and do not pay attention to product quality, and blindly compete for market at a low price in the international market have a bad effect, this situation will inevitably lead to some exporting countries to use international trade rules of the game, to carry out the quality of export products to China and even anti-dumping investigations .He believes that in order to ensure the healthy and stable long-term development, China’s valve industry, the core must be the case in the situation is excellent, as the valve shoulder the responsibility of the core powers of control world power shortcomings, bad behavior to discover the industry, regulate trade order. He suggested that enterprises must improve quality from the start, Lianhaoneigong to promote technological innovation to improve the quality of products; from the beginning of a brand name, expand markets, reduce the risk of dumping; performance and social responsibility from the start, being a responsible “world Enterprises. “It is understood that the main origin of valve concentrated in Jiangsu, Zhejiang, Shandong and Fujian, has formed a complete specification, supporting a structured pattern of industrialization; more than 30 manufacturers, the annual output over 300 million have 4 , over 5000 of more than a dozen. Estimated 2007 sales of various types of valves can be supported to reach 2.19 billion units, with sales of 40 million yuan or more. Among them, the truck inner tube valve 120 million, motorcycle, bicycle inner tube valve 1.2 billion, truck tubeless valves 40 million, car tubeless valves 800,000,000, and other special valves 30 million.Leading products truck inner tube and Tubeless Valve, Motorcycle Tire Valve, tubeless valve car production have been about 70% of the world, exports amounted to nearly $ 250,000,000. It should be noted that the valve core and the National Rubber Machinery Committee of test center quality earlier in the investigation of the industry, we found a number of negative phenomena and potential risks. For example, the Tire Valve problems are: the persistence of some enterprises Material mainly the mouth lower and lower copper content materials; change valve standard structure and size, to reduce material consumption purposes; valve Mouth and body size, short, not up to standard requirements; mouth thin body chassis, small diameter.In addition, the rubber valve seat materials, poor quality of rubber, metal, plastic body cover low, the prevalence of blooming phenomenon. Valve inside the main problems are: some enterprises material is mainly the valve core length shorter than the standard, resulting in valve core leakage rate, some enterprises valve core leakage rate of more than 5%, life is short, inflatable speed Low; Snap valve factories in the Ningbo region there is some use of cheaper natural rubber and recycled rubber mixing, instead of EPDM rubber and natural rubber mix, the product can not be tested through the ozone standard; some companies to reduce the valve Copper mouth to save weight, without changing the structure of valve size standard, such as the diameter of the mouth bar and the core chamber reaming thinning cancellation.National Rubber Machinery Quality Supervision, Inspection and Shen Jie, deputy director, said valve core is related to people’s lives and property safety, whether national standards or international standards are the size of the valve core strict requirements, without changing the product Structure size is actually illegal. If a large number of non-standard products are exported to foreign countries, the vehicle after installation will bring great security risk. Tubeless Snap-in particular, valve, mounted on top speed of over 200 km of the tire, once the accident, will be the car crash of major accidents, the reputation of Chinese products would bring adverse effects.He suggested that industry should pay attention to standard adoption problem, companies should self-examination, and resolutely put an end to production of non-standard products, producers have to crack down on individual non-compliance and the media exposure.