API 16A BOP Stacks Features:1) Standard:API16A 2) Bore size:7 1/16-21 1/4" 3) Pressure:2000-15000psi 4) Type: Shaffer type, Cameron type5) Body Styles: single, double, triple6) Outlets: According to customer needs or standard.7) End type: API flanged, studded and other types are available.ModelBore (in)Working Pressure (Psi)Hydraulic Control Pressure (Psi)Piston Size (in)Piston Stroke (in)Working Temperature (F)2FZ18-217-1/16"3000 1200-15005.94.1-4F--186"F2PZ18-357-1/16"50005.94.12FZ23-219"30005.95.92FZ23-359"50008.65.92FZ23-709"100009.85.92FZ28-3511"50009.86.32FZ28-7011"100009.86.32FZ28-10511"1500013.77.12FZ35-1413-5/8"20006.37.12F235-2113-5/8"30008.77.12F235-3513-5/8"500013.77.12FZ35-7013-5/8"1000013.78.22FZ35-10513-5/8"1500013.78.2