The Mark 6800HP is a line of self-operated pressure regulating valves for use on high pressure industrial gas and liquid services to 4,000 psi (275,8 bar). The MK6800HP features exceptional accuracy with high flow capacities and simple in-line maintainability.

For durability and dependable service, the 1/2" - 1" valves are constructed of total barstock, with all stainless steel components. The stainless steel plugs are available with hard seats, or with a variety of soft seats that include Stellite, Zymaxx, and Teflon. Balanced trim can be provided with all seat types.