Impulse lines

Difference between filled impulse line and purged impulse line

Filled impulse lines An alternate method for isolating a pressure-sensing instrument from direct contact with process fluid is to either fill or purge the impulse lines with a harmless fluid. Filling impulse tubes with a static fluid works when gravity is able to keep the fill fluid in place, such as in this example of a pressure transmitter connected …

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What is impulse lines?

What is  impulse piping? An impulse line is a small-gauge pipe that is used to connect a point in a pipe in which the pressure is measured at a instrument. In flow measurement using a primary device such as an orifice plate, nozzle or Venturi meter, impulse lines are used to connect upstream and downstream …

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