Okay, now the next question:
"Can anyone a valve manufacturer than can build"
By this do you mean?
"Can anyone give me the name of one or more Valve manufacturers who can build ----"
Is that what you mean?
If so then Cameron Valves would be the best option.
Cameron is a leading provider of flow equipment products, systems and services to worldwide oil, gas and process industries. Leveraging its global manufacturing, engineering and sales and service network, Cameron works with drilling contractors, oil & gas producers, pipeline operators, refiners and other process owners to control, direct, adjust, process, measure and compress pressures and flows.
prognosis: Lead or Lag