Not every system is the same and hence pressure regulators need to be sized and selected to provide an exact solution. The ability for a pressure regulator to provide stable control depends on pressures and flow rates within the system being able to pass through the seating area and cross holes within the valve. Other factors such as temperature, media and external environment provide variations that mean 'off-the-shelf' products may not be acceptable for many systems.
Flanged NACE regulator developed for Aramco
This specially adapted ANSI flanged pressure regulator has been developed for use on Sour Gas installations for Saudi Aramco. By removing the need for high pressure NPT instrumentation lines, and connecting directly to the process line, it crucially eliminates the potential for leak paths. The flanged LF-311 shown also includes a large piston sensed element for use with Hydrogen; it protects against the risk of Hydrogen embrittlement and provides excellent pressure control to the gas analyser system.