Monoflange and Keyblok valves are both types of primary isolation valves used to isolate the process media from a given location, often for safety or maintenance purposes. They are typically installed within an instrument hook up loop as the “take off valve” or the “first valve” off from the process flow line. This safely isolates instrumentation devices from the process media while still meeting piping class codes and standard valve requirements. TESCOM Anderson Greenwood Instrumentation Monoflange and Keyblok valves can be arranged for use in many applications including instrument isolation, gauge/pressure isolation, instrument drain, and chemical injection/ sampling.
While both types of valves serve a similar purpose, they do have some distinct differences and applications listed below:
Valve & Bonnet Type
Inlet Connection Types
Outlet Connection Types
When choosing between the two types, the most important things to keep in mind are the application and the service conditions. Due to the differences in size and configuration, factors that are typically considered when selecting a TESCOM primary isolation valve include:
Still not sure which valve style and configuration to use? Please comment below!
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