Series VAV Air Valves The AquaMatic V46 Series Stainless Steel Valves are designed to permit higher flow rates than similarsized diaphragm-operated valves. They are available in 1-, 1-12- and 2-inch diameters in threaded or flanged ends. With all stainless steel internals and no internal threads, the V46 is ideally suited for corrosion-resistant applications. Operating Specifications Maximum Working Pressure: Threaded Valves: 250 psi (17 bar) Flanged Valves: 150 psi (10.3 bar) Temperature: Standard: 150°F (65°C) Maximum: 250°F (120°C) Pipe Sizes: 1-, 1-12- and 2-inch threaded (NPT, BSPP, JIS) 1-, 1-12- and 2-inch flanged (U.S. or ISO) Standard Materials: Valve body, shaft and cap cast 316 stainless steel (CF8M) alloy, all metal internals 316 stainless steel, standard seals Nitrile, diaphragm Nitrile on Polyamide Optional Materials: Seals EPDM or FKM elastomers, diaphragm FKM on Polyester