Are the Samson 3730 series valve positioners of the flap nozzle type or piezoelectric valve type?
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As the title suggests, does Samson’s 3730 series valve positioner use a baffle nozzle structure like Fisher’s, or a piezoelectric valve structure like Siemens’? Thank you~
How does Samson’s locator seem on the second floor? It seems the quality is also good, with a low failure rate, right?
Well, I’ve used both Samson and FISHER; Samson is simpler to adjust, and I don’t recall any issues with it. . . Siemens, ABB, and Fox are used less frequently, so no evaluation is provided. Siemens’ piezoelectric types are said to have more problems in very cold environments or when the air supply is not clean. I asked the manufacturer, and they said it’s an issue with certain batches; they aren’t very familiar with it.
The Samson locator is not suitable for valves with high-frequency operations or in environments with heavy vibration
Fisher has good stability
Currently, the foreign brands that use piezoelectric valves are two major ones: Siemens and Fox