ASME american society of mechanical engineers B3 1.3
ASME BPVCⅱ- 1-NC
ASME BPVC Vⅲ- 1
MIL-E-17813F-General Specification for Expansion Joints of Metal Bellows for Pipes (Military Standard)
Brief introduction of American expansion joint manufacturers association;
American Expansion Joint Manufacturers Association (EJMA for short) was founded in 1955, which is composed of a group of companies with rich experience in using, designing and manufacturing expansion joints. EJMA is a commercial association freely established by these expansion joint manufacturers according to the company's articles of association, and exists in the form of a limited company.
EJMA has a set of strict auditing procedures for the qualification of expansion joint manufacturers applying to join the association, and Que Ning is too busy. So far, EJMA*** has 14 members, 8 in the United States and 5 in Europe, and only Nanjing Chen Guangdong Luo Bellows Co., Ltd. has 1 member in Asia. EJMA members should appoint a member representative and a technical committee representative, who should attend two general meetings and two technical committee meetings every year, which is the basic obligation of members. The technical committee is responsible for revising the standards. In the first half of the year, the general meeting and technical meeting were held in the same week in April, and the general meeting and technical meeting were held in the same week in 5438+ 10. EJMA members will be awarded to membership certificate, and the list will be included in the EJMA standard and website member list, and the EJMA logo can be used.
1 958EJMA standard edition1published by ejma technical committee * * *. Due to the limited application experience at that time, the content of 1 standard is relatively simple, only involving the application of axial displacement. After collecting a lot of research results and test results in the following decades, EJMA standard has included more detailed design data. The latest version is A20 1 1 9th edition in 2008, and the version of 10 will be published on 20 13. EJMA members are the world's leading manufacturers of corrugated expansion joints, and EJMA standards concentrate the collective experience and wisdom of EJMA technical committee members. After years of practice and verification, EJMA standard has become an internationally recognized advanced standard, and almost all expansion joint standards are based on EJMA standard, such as the part about expansion joint design in ASME Boiler and Pressure Vessel Code, the part about expansion joint design in ASMEB3 1 series standards, the part about expansion joint design in EU Pressure Vessel Code and Pressure Pipeline Code, the EU expansion joint design code, Japanese pressure vessel and pressure pipeline expansion joint standard, and China pressure vessel.
In recent years, China's economy has developed rapidly, and the rising expansion joint market in China has attracted EJMA's attention. In order to make the manufacturers of expansion joints in China and the buyers and users of expansion joints in China know the EJMA standard timely and conveniently, our company is responsible for translating the latest version of EJMA standard. The ninth edition includes the revised version of 20 10 in 2009 and the supplementary version of 20 165438. The Chinese version of EJMA standard comes from 20 1. EJMA has signed a consignment agreement with China ASME Code Product Collaboration CACI Company, and any user can purchase both Chinese and English versions of EJMA standard through China ASME Code Product Collaboration Network (CACI).