DeZURIK BHP Butterfly Valves are specially designed for critical applications in the water industry where high pressures, high velocity flows and stainless-steel construction are required. Typical applications include high service pumps; transmission lines requiring NSF 61/372 approval; pressures over 250 psi (1720 kPa); pump isolation at pressures in excess of 250 psi (1720 kPa) and control check service at pressures in excess of 300 psi (2070 kPa). Contact your local DeZURIK representative if you have projects specifying valves to meet NSF/ANSI 61 & NSF/ANSI 372.