J Flow Controls” TF2500 Series flanged ball valve features PTFE-impregnated internal and external surfaces for corrosive conditions and is resistant to internal build up or adhesive product. The valve is a good fit for corrosive and acid applications. Available in sizes 1/2″ through 12 inches full port. Options include extended bonnet, steam jacket, chainwheel, and fusible link. It is available as a direct-mount valve with pressures up to 285 PSI for carbon steel and 275 PSI for stainless steel. Seat material is PTFE.