Globe valves take their name from their shape, even though today they are no longer round

Globe valves of stainless steel can be used to regulate the flow rate in a linear and precise manner

We deal in particular with two types of globe valve, Y pattern and T pattern, which differ according to how they are configured internally. The Y pattern valve is used  when fluid does not have to be deviated much, and the plug is sloped at an acute angle in relation to the flow. The Intertubi catalogue also includes T pattern valves, where the closing stem is perpendicular to the flow and the fluid is deviated almost perpendicularly, creating a high pressure drop.
The globe valve is closed by a disc controlled by a manual threaded rod. Fine step adjustments make small variations that can be almost linear.
Globe valves can be adjusted by increasing or reducing the section of passage, but as this section is at times much smaller than the total passage of the pipe, serious problems of cavitation and flashing can occur. This phenomenon is generated by large changes in pressure before and after the disc, and tends to corrode the metal surfaces. To reduce these effects, some points of the globe valve are covered in stellite alloy, an extremely hard and resistant material.