G1/4 Presta valve Residual Pressure Holding Valve For Industrial Air Spring

Specifications

G1/4

G = 55 ° cylindrical pipe thread code, 1/4 "= nominal thread diameter," is expressed in inches.
The thread parameters are as follows:
Thread diameter = 13.17 mm, thread diameter = 12.311 mm, thread diameter = 11.445 mm, 19 teeth per inch, pitch = 1.337 mm, thread angle = 55°

French valves (English: Presta valve, Sclaver and valve or French valve) are often referred to simply as French mouths and are mostly used on road bikes. Also this kind of valve can use in the air spring.

This type of valve consists of an externally threaded copper body, a valve screw that holds the valve, a valve cover, and a nut that fixes the valve on the rim.

The biggest feature of the French mouth is just the opposite of the American mouth, and its air core cannot be removed. However, some pistols can have their cores. The purpose is to inject inner tube repairing agents. However, the number of such rare French mouths is rather rare. For different applications, the length of the brass body will change; its 6mm aperture is also smaller than the American mouth (the body mouth of the American mouth is 8mm). Because the nut is fixed between the bottom of the mouth of the French mouth and the rim, it helps to strengthen the bicycle rim with a narrower width, because the most vulnerable place of this type of rim is often in the valve hole .

Another advantage of a French mouthpiece is its light weight and its ability to fine-tune its speed and control air pressure with precision. Before inflating, you must loosen the top valve screw to inflate. The mouth pump of the French mouth is different from the American mouth, but the mouth of the French mouth can be locked with an adapter and the pump of the American mouth can be used.

Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles’ seat, luxurious car and industrial machine field.

GUOMAT Factory gate：

Established in 2008, Our company covers 20,000㎡ and is located in Taihe Town Baiyun District. With the rapid development of our company, we are equipped with modernized workshop and advanced rubber air springs equipments now. We are the first company who started air spring business and has become one of the largest air spring manufacturing bases in China.

In 2017, we launched a collaboration with High Tech of US customers to customize the products of our customers and the logo of our customers. Every year, there are about 10,000 orders. In continuous cooperation, the products meet the international inspection standard ISO/TS16949:2009, and the customers are very satisfied with the products produced. This is our high recognition from American customers and also gives us Great motivation.

In 2018, we started cooperation with German GmbH, mainly industrial air springs, which are suitable for industrial equipment. We have successfully developed and produced the natural air-seal of the skin to reach the 700mm flanged air spring, the customer's annual demand is a few hundred.

With the development of business and demand for customers, our company introduced business with TomLog Corporation in 2010, our strategic cooperative partner in Taiwan. Then we developed air compressor program and air spring related business, in 2015, America Goodyear Corporation met with the transfer of shares in the North American plant, our company was granted with sale agent for air springs in China, providing more choice for our customers. Our company adopts the most advanced domestic air spring processing equipment and international production technology. Combined with unique production process, our company strictly execute international standards for production and spare no efforts to create the world-class products. We will endeavor to make air spring widely used at home and abroad, and let more and more customers to enjoy the best damping effect.