The BYV Series butterfly valve from Hayward Flow Control is available in multiple thermoplastic materials from 2 through 12 inches. The hand level features a 72-spline interlock for stopping positions every 5 degrees. Available in ANSI 150 and DIN/EN PN10 flange patterns, the valve has a pressure rating of 150 psi at 70 degrees F. Options include 316 stainless steel lugs, gear operators, pneumatic or electric actuators, manual limit switches, stem extensions, 2-inch-square operating nut and chain operator for gear boxes. 888/429-4635; www.haywardflowcontrol.com.