2. The outer diameter of the rubber expansion joint usually refers to the outer diameter of the flange, which is represented by the letter D.
3. The bolt hole center diameter of the rubber expansion joint is usually indicated by the letter K.
The 4 ", 6", 8 ", 10" rubber expansion joint are usually used in civil drainage pipe connections. Large diameter rubber expansion joint are usually used in industrial fields, such as power plants and sewage treatment plants. The 4 ", 6", 8 ", 10" rubber expansion joint are the best selling products of our company because of their wide range of use. For example, our company sells DN100 rubber expansion joint for aviation lubricating oil in Nanjing.
The 4 ", 6", 8 ", 10" rubber expansion joint produced by Zhengzhou Mason Factory are sold to Mexico, Chile, the United States, Canada, Germany, Dubai, Vietnam, Thailand and many other countries, with an annual sales volume of 100000 tons+. The quality of rubber expansion joint has received many praise, no damage occurred during the use of users, and customers buy back a lot.