This Flex Flange Butterfly Valve: End flange dimension:ASME B16.5(NPSaa24),ASME B 16.47 BW end dimension:ASME B 16.25 Dual-clamp ... valve is an advanced valve in the short distance between flange poles of 2 pipes with unique design,new structure and ... ficed in any sected postion.SpecificationsHigh performance butterfly valve: 1,flange type,size: 2" -72", 2,rating:150lb-600lb 3,Suitable ...