V601 carbon steel ball valves feature a reduced port, one piece carbon steel body, Type 316 stainless steel blow-out proof stem, and PTFE TeflonĀ® seats and seals. These valves come complete with NPTF female pipe threads, however we do offer female O-Ring Boss threads in 1/2" size (3/4-16). Our 3/8" carbon steel ball valves are plated for extra corrosion resistance and feature a Type 304 stainless steel ball and NACE trim with a pressure rating up to 3000 psi for water, oil, and gas(150 psi for steam). All other sizes of our V601 valves have a 2000 psi pressure rating for water, oil, and gas (150 psi for steam).