What Is an Eccentric Contraction?

Eccentric heads refer to heads whose centers are not on the same straight line. Its role is to stick to the wall or to run the pipeline without occupying space, and to connect two pipes of different calibers to change the flow.

Eccentric head

3/4 "X1 / 2" --- 48 "X 40" [DN 20 X 15-1200 X 1000]

: ISO9001 : 2008 Quality Management System Certification

Carbon steel : 10 #

(1) Internal pressure

1. Divided by material:

Carbon steel: ASTM / ASME A234 WPB,

National Standard, American Standard (ANIS), Japanese Standard (JIS), British Standard (BS), German Standard (DIN), Italian Standard (UNI), etc.

There are two main international pipe flange standards, namely the European pipe flange system represented by German DIN (including the former Soviet Union) and the American pipe flange system represented by American ANSI pipe flange. In addition, there are Japanese JIS pipe flanges, but they are generally only used for public works in petrochemical plants, and have a small international impact. The pipe flanges of various countries are introduced below:

1. European system pipe flanges represented by Germany and the former Soviet Union

2, American system pipe flange standards, represented by ANSI B16.5 and ANSI B 16.47

3, British and French pipe flange standards, each country has two sleeve flange standards.

In summary, the internationally accepted standard for pipe flanges can be summarized as two different and non-interchangeable pipe flange systems: one is the European pipe flange system represented by Germany; the other is the United States. American tube flange system.

IOS7005-1 is a standard promulgated by the International Organization for Standardization in 1992. This standard is actually a pipe flange standard combining two sets of pipe flanges from the United States and Germany.