{"id":20350,"date":"2020-09-17T16:16:40","date_gmt":"2020-09-17T20:16:40","guid":{"rendered":"https:\/\/www.equilibar.com\/?page_id=20350"},"modified":"2025-11-24T15:07:31","modified_gmt":"2025-11-24T19:07:31","slug":"flow-control-valves","status":"publish","type":"page","link":"https:\/\/www.equilibar.com\/fr\/flow-control-valves\/","title":{"rendered":"Equilibar Flow Control Valves"},"content":{"rendered":"

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Contact Us<\/a> Download Equilibar Flow Control Brochure<\/a><\/p>

Precision control across an ultra-wide range of flow rates
for gases, liquids and mixed phase fluids.<\/h4>

The Equilibar\u00ae advanced flow control valve works in a control loop with an electronic controller and a flow meter. For demanding flow control applications<\/a> where the supply pressure is largely stable, Equilibar customers have discovered significant benefits including wide Cv range capability, chemical compatibility and multiphase fluid handling.<\/p>

How it Works in Flow Control<\/h3>

In a flow control configuration, the Equilibar valve works with an electronic pilot pressure controller and a flow meter in a control loop. A proportional-integral-derivative (PID) controller monitors input from a flow transmitter (FT) and adjusts the pilot pressure to bring flow under control. An electro-pneumatic (E\/P) pressure controller translates the electronic signal from the PID into a pressure signal for the pilot pressure. Flow is decreased by raising the pilot pressure and increased by lowering the pilot pressure.<\/p>

\"schematic

An Equilibar flow control valve works in a PID control loop with a flow meter and an electronic pressure controller.<\/p><\/div>

In this setup, an increase in actuation pressure decreases the flow so the PID control scheme will be set up differently than if using a traditional control valve. In flow control operations with an Equilibar valve, the PID controller must be used in direct mode<\/strong><\/em> instead of the more common inverse mode, because pressure must be increased<\/strong><\/em> in response to an increase<\/strong><\/em> in flow (see graph below).<\/p>

\"Flow

Graph showing opposite responses of a traditional globe valve (red) and an Equilibar valve (blue) in response to actuation pressure<\/p><\/div>

Getting Started<\/a><\/p>

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