High Performance Butterfly Valve -316 stainless Steel Body, 285 PSI G1W-SSSR. Valve pressure rating 285 psi, Maximum operating temperature 400°F at 100 psi, Glass reinforced PTFE seats, Wafer style, Blowout-proof stem, Stainless steel disc and stem, Integrally cast disc stop, Dual offset design, Direct mount actuation, Operating mechanism: Bare stem, infinite position plate and lock, lever