The most popular threaded flanges range in ½ inch to 6" nominal pipe size. For a larger diameter, slip on flanges or weld neck flanges are more welcome. But we can produce larger size threaded flanges up to 24" if necessary.
Threaded flanges is popular in using for an application which requires connecting and disconnecting from time to time. The male pipe end is joined to the flange without a weld connection required but can be sealed with a weld if necessary. Its primary advantage is to assemble and disassemble the connection. For the purposes of pressure vessel equipment, the weld seal can be applied if the user is certain they would like to keep the pipe and flange assembly sealed permanently.
threaded flange, screw flange, NPT flange, companion flange New Century Machinery Co., Ltd , https://www.ncmflange.com
The Euro III standard is a vehicle emission standard set by the European Union and is implemented from 2000 to 2005. According to this standard, the limits of hydrocarbons, carbon monoxide, nitrogen oxides and particulates in commercial vehicle exhaust are 0.66%, 2.1%, 5% and 0.1%, respectively.
Wang Binggang said that even if the oil supply is in a tight trend, fuel will remain the main fuel for Chinese cars for a long time to come. Improving fuel quality to meet the demand for implementing Euro III vehicle emission standards has become an urgent task for China.
China will also gradually promote the use of liquefied petroleum gas (LPG) as an alternative fuel, and encourage auto companies to develop LPG vehicles that meet Euro II and Euro III emission levels to meet increasingly stringent environmental requirements.
China will formulate new emission standards and Euro II emissions will be implemented soon
Wang Binggang, a senior researcher at the China Automotive Technology and Research Center, said in Shanghai recently that China will implement a new vehicle emission standard equivalent to the Euro II standard and prepare for the implementation of a vehicle emission standard equivalent to the Euro III standard.