What are the specifications and dimensions of flanges?
Flanges are a disk shaped part, most common in pipe engineering. Flanges are used in pairs.In pipe engineering, flanges are used mainly for pipe connections. In the need to connect the pipe, all kinds of installation of a flange, low pressure pipe can use wire connection flange, more than 4 kilograms pressure use welding flange. Add a gasket between the two flanges and secure with bolts.Different pressure flanges have different thicknesses and use different bolts.Water pump and valve, and in the pipe connection, these equipment parts of the equipment also made corresponding flange shape, also known as flange connection.Usually in the two plane, in the vicinity of the use of bolt connection
There's a mechanical design manual.
The specifications and specifications of flanges are as follows:1, GB flange standard by the People's Republic of China State Administration of quality supervision, inspection and quarantine and the China National Standardization Management Committee jointly issued in 2011-01-10, from 2011-10-01 implementation of the recommended standards.GB/T 9112~9124-2010 includes the following 13 criteria:Instead of national standard GB/T9112-2000, GB/T10745-1989 standardTypes and parameters of GB/T 9112-2010 steel pipe flangesGB/T 9113-2010 overall steel pipe flangesGB/T 9114-2010 steel pipe flanges with neck threadGB/T 9115-2010 butt welded steel pipe flangesGB/T 9116-2010 hubbed steel pipe flangesGB/T 9117-2010 socket welded steel pipe flangesGB/T, 9118-2010, welded, ring, neck, loose, steel pipe flangesGB/T 9119-2010 plate welding steel pipe flangesGB/T 9120-2010 welded ring plate type loose steel pipe flangesGB/T 9121-2010 flat ring loose plate steel pipe flangesGB/T 9122-2010 flange ring type loose steel pipe flangesGB/T 9123-2010 steel pipe flange capGB/T 9124-2010 steel pipe flanges2, technical conditionsThe pressure markers specified in this standard are classified into PN and Class markers.The PN mark has 12 pressure levelsThey are: PN2.5; PN6; PN10; PN16; PN25; PN40; PN63;; PN100; PN160; PN250; PN320; PN400The Class mark has 6 pressure levelsThey are: Class 150; Class 300; Class 600; Class 900; Class 1500; Class 2500
