Smith-Cooper International 160 Series Iron Butterfly valve, Wafer Style, Stainless Steel 316 Disc, EPDM Seat, Lever Handle, 2" Wafer-style design for a seal against two-way pressure to prevent backflow in single-direction systems Made of iron for compressive strength and resistance to wear; EPDM seats provide resistance to weathering, ozone, UV, electricity, oils, water, steam and some solvents Lever handle for manual flow control Maximum pressure of 200 pounds per square inch (psi); Upper temperature range of 150 degrees Fahrenheit. Flanged connection surrounds the body for bolting to pipes