Material: WCB, LCB, CF8 304, CF8M 316, CF3 304L, CF3M 316L, WC1, WC6, WC9, CN7M, Monel 

Class: 150Lbs Size: 1/2"~12" 
Class: 300Lbs Size: 1/2"~12" 
Class: 600Lbs Size: 2"~8" 
Class: 900Lbs Size: 2"~8" 

Stardards: 
A) Design and manufacture: BS1868-1873, API60D, ASME B16.34 
B) End flange dimensions: ANSI B16.5, ASME B16.47 
D) Face to face: ASME B16.10 
E) Butt welded end: ANSI B16.25 
F) Pressure-temperature ratings: ASME B16.34 
G) Inspection and test: API598, API6D