Mechanical Equipment Installation Engineering Construction and Acceptance General Specification GB50231-98

Author: Edited by the former Ministry of Machine Industry of the People's Republic of China
Publisher: China Planning Press
Publication Date: 2005-08-01
Features: This specification is divided into 8 chapters, 18 sections, and 20 appendices. The main revisions include:
1. The original "General Provisions for Equipment Installation Engineering" has been modified to a specification applicable to all types of mechanical equipment installation projects nationwide, expanding the scope of the specification.
2. New content such as new technologies and methods has been added, including: anchor bolts with expansion anchors, epoxy mortar anchor bolts, vibration dampers, installation without gaskets, grouting method, hydraulic and pneumatic lubrication pipelines, and expanded coupling assembly to 11 varieties and types. The technical requirements, methods, and quality inspection standards for washing, rust removal, and degreasing have been made more clear.
3. The original specification was formulated in the 1970s, with poor scientific and practical parameters and technical requirements. With the development of China's products and construction technology, this revision has been comprehensively modified according to current national standards and mature construction techniques.
4. Nouns, terms, geometric tolerance, and units of measurement have been significantly revised in accordance with current national standards and the specifications of the equipment installation industry.