Flange Metrics

Jan 19, 2018

Flange Metrics

National standard flange (English: National standardflange) refers to the People's Republic of China national standard "GB / T 9112 ~ 9124-2010 steel pipe flange" provisions of the production of flange pieces.

National standard flange standard by the People's Republic of China AQSIQ and China National Standardization Administration jointly issued on 2011-01-10, from 2011-10-01 implementation of the recommended standard.

GB / T 9112 ~ 9124-2010 includes the following 13 criteria:

Instead of the national standard

GB / T9112-2000; GB / T10745-1989 standards

Steel pipe flange types and parameters

GB / T 9113-2010 Overall steel pipe flange

Flange with necked steel pipe

GB / T Butt welded steel pipe flanges

GB / T 9116-2010 Pipe flanges with neck welding steel

GB / T 9117-2010 Socket welded steel pipe flanges

GB / T 9118-2010 Butt welded ring with neck loose tube steel pipe flange

GB / T 9119-2010 Flat welded steel pipe flange GB / T 9119-2010

GB / T 9120-2010 Butt ring plate loose tube steel pipe flange