all kind of check valves,strainer and flange All kind of check valves, strainer and flange. Check valves Specifications: 1)Size: 2 ... CF8M/SS316 etc. 4)Standards: A)Design and manufacture: BS 1868/API6D B)Inspection and Test: API598 C)Flange connection: ANSI ... , welding neck, blind, plate, socket welding, threaded etc.4) Facing: RF / FF / RTJ5) Material: carbon steel, stainless steel6) Standards: ANSI ...