The original “Piping Selector 150/300” has been used for over 30 years by engineers, designers, fabricators and students as an excellent industry data source. The wheel-chart provides speedy access to valve, flange and fitting dimensions. Dimensions for valves, flanges and fittings make-up for 300# and 600# A.N.S.I. for NPS up to 30″ (This side shows … Continue reading Piping Selector