Valves Instruments is proud to now include Metso Jamesbury Ball Valves in our product offering. All Jamesbury valves listed on this site are normally stocked in substantial quantities... this means that we can ship most Jamesbury orders on the same or next business day. Can t find what you are looking for Contact Us with your application requirements. Jamesbury brand ball valves are known for their long history of innovation and proven reliability. Industry breakthroughs include flexible lip polymeric and XTREME seating technologies which have extended cycle life and application range of their valves.