Size: 2â-24â Pressure Rating: 600-2500 LB Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel End: BW, RF, RTJ Operation: Manual, Pneumatic, Electric Design & Manufacture Standard: ASME B16.34 Face to Face: ASME B16.10 End Connection: ASME B16.5, ASME B16.25 Test Standard: API598 Pressure seal bonnet Flexible wedge (solid for sizes ⤠2 1/2") OS&Y Rising stem. Optional by-pass design Asbestos free.