· BODY : Cast Steel (API / ANSI Standard, Renewable Seat Threaded, Boss for Drain/Bypass)

· BONNET : Cast Steel (Machined for Yoke Sleeve, Stuffing Box per API Standard)

· DISC : Cast Stainless Steel / Cast Steel (≤8” Stainless, Larger Valves Cast Steel, Flat/Taper/Plug/Parabolic Type)

· SEAT RING : Trim Part (Threaded OD, Notched ID, Ground & Lapped Seal Surface)

· STEM : Alloy Steel (T-Head, Threaded Ring Connection, Ground Backseat, Low Friction, API 600 Standard)

· BONNET BUSHING : Alloy Steel (Machined & Heat Treated, Ground & Lapped for Tight Seal)

· YOKE SLEEVE : Cast Austenitic Ductile Iron (High Wear Resistance, High Melting Point, Threaded into Bonnet)

· BONNET BOLTING : Alloy Steel (Studs & Nuts per ASTM Standard)