Difference between valves V211 and V211T

Issue

Please define the difference between the V211 and V211T

Product Line

Field Devices

Environment

V211

V211T

Cause

There are 2 different valves with similar characteristics, what differences are there, and why should I choose one or the other?

Resolution

V211 is equipped with flanged connections, while the V211T has internal threaded connections.