Posts Tagged reduce pressure

Webinar Recap: Back Pressure Regulators 101

In case you missed last month’s webinar with Jordan Valve on back pressure regulators, we’ve put together some of the key points.

The Control Loop: The Control Loop

Sensing element: measures the process variable being controlled, and send an output to the controlling instrument

Controlling instrument: calculates the error (difference in signal from sensing element and the desired setpoint) and sends corrective signal to final control element

Final control element: varies the flow to change the controlled variable to the required setpoint

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Regulators 101: Pressure vs. Back Pressure

Let’s start with the basics.

What is a pressure regulator?How a Pressure Regulator Works

A pressure regulator is a normally-open valve used to regulate or reduce undesirable, high upstream pressure. The pressure regulator must be installed at the START of a system, before any pressure-sensitive equipment.

The valve is held open by springs, and a screw that sets spring force. When outlet pressure exceeds the setpoint, the valve will close. When the valve closes, pressure is reduced downstream.

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