For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Fax: +1-801-504-4439. Continuing to use this site means you agree to our use of cookies. The EPR 150 will work in a similar way by providing control up to 150 psi. On GP2 units, this signal originates from the external transducer. While many industrial pressure controllers utilize binary fill and vent valves, or analog fill valves with binary vent valves, the EPR-500 uses two analog valves for highly precise and resolute control throughout the entire range. Continuing to use this site means you agree to our use of cookies. The schematic above shows an electronic pressure regulator and a dome-loaded back pressure regulator controlling the pressure of a laboratory reactor, such as might be used in catalyst research. Instead of using a complex variable speed pump, the output pressure of any type of pump can be controlled by the BPR, which allows only enough fluid to return to the supply vessel as required to limit the dispensing pressure. The summer 2022 issue of Valve Magazine includes a comprehensive overview of the direct sealing diaphragm valve technology that is at the core of Equilibars patented devices. The EPR-3000 is designed for static to low- flow applications of inert gas such as nitrogen or air. Fax: +1-801-504-4439. You can control the unit using your own PLC (programmable logic controller), a data acquisition device such as a DAQ with software such as LabVIEW by National Instruments, or even just a simple potentiometer (variable resistor). 28732 United States, Tel: +1-828-650-6590 When coupled with an electronic pressure controller, Equilibar patented BPRs can provide precise automated control for difficult processes. Boxes 1-4 serve the same purpose as above. Considerations for Oxygen Rich Applications, Diaphragm Selection for Equilibar Regulators, Water Hammer and Chatter with Equilibar Back Pressure Regulators, Research Series
Fax: +1-801-504-4439. The volume of the gas space can affect the tuning of the valves. Two valve pressure controllers include a fill and vent valve. To give you the best possible experience, this site uses cookies. An available option for most EPRs is that of 2-Loop control, which uses an external feedback signal. The QPV is surprisingly affordable and Equilibar offers a few models off the shelf for quick delivery. Outlet pressure is sensed and controlled through a type of PID loop. Two valve pressure controllers include a fill and vent valve. Fletcher, North Carolina That is because the control valve action has to swing suddenly with every change in dispensing flow rate. 28732 United States, Tel: +1-828-650-6590 Most models also offer a feedback signal informing the pressure sensor value. Continuing to use this site means you agree to our use of cookies. *Meant for use with air or inert gases only. Fletcher, North Carolina Pilot regulator for an Equilibar back pressure regulator with true 1:1 ratio control without any PID tuning or complicated installations. An Equilibardome-loaded back pressure regulator (bottom) is commanded by an Equilibar QPVelectronic pressure regulator(top) to provide complete process automation. Pressure reducing regulators control their outlet pressure and open to increase downstream pressure (see more about the differences). The EPR 1000 is an electronic pressure regulator designed for electronic pressure control of inert gases. It is oftentimes used as a pilot regulator for Equilibar back pressure regulators when high precision electronic control is desired for an application. Designed for static to low- flow applications of inert gas such as nitrogen or air, Look at the part number listed on the regulators label, In general, the number right before the first dash is the revision number. You are here: Home Products Electronic Pressure Regulators EPR 3000 High Precision Electronic Pressure Regulator, EPR 3000 High Precision Electronic Pressure Regulator. However, the BPR will hold the header pressure constant without any change in controller output. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. 28732 United States, Tel: +1-828-650-6590 Easily modified for custom applications. You are here: Home Back Pressure Regulator Electronic Back Pressure Regulators. Using dual analog valve construction, the EPR-3000 avoids the waste of inert supply gas present with some competitive solutions. Literature & Specifications Equilibar provides a complete solution for electronic back pressure control by offering a selection of electronic pressure regulators to control the dome setpoint signal. Flow control loops where pressure control is higher than 1000 psi, Designed for static to low- flow applications of inert gas such as nitrogen or air, Look at the part number listed on the regulators label, In general, the number right before the first dash is the revision number. An example of medical fluid pressure control emulating cardiovascular pressure by using a dome-loaded back pressure regulator. Written by Equilibar founder Jeff Jennings, the article explains the background of this unique method of fluid control and describes how it is capable of providing robust backRead More, 320 Rutledge Rd. Installation & Maintenance The output of this signal can be configured to either 0-10Vdc or 4-20mA. Boxes 1-4 serve the same purpose as above. The pressure in the reactor is commanded by the computer through an electronic pressure regulator, which produces an air or nitrogen pressure signal to the dome-loaded BPR. Continuing to use this site means you agree to our use of cookies. Written by Equilibar founder Jeff Jennings, the article explains the background of this unique method of fluid control and describes how it is capable of providing robust backRead More, 320 Rutledge Rd. Two valve pressure controllers include a fill and vent valve. *Not intended for hazardous/explosive environments. The PID flow control loop controls the signal to the electronic pressure regulator, which thereby controls the setpoint of the dome-loaded BPR with an air pressure signal. It is oftentimes used as a pilot regulator for Equilibar back pressure regulators when high precision electronic control is desired for an application. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Boxes 1-4 serve the same purpose as above. Written by Equilibar founder Jeff Jennings, the article explains the background of this unique method of fluid control and describes how it is capable of providing robust backRead More, 320 Rutledge Rd. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Fletcher, North Carolina The primary reason for this is due to how challenging it is to get valve parts to move with such low pressures. Equilibar offers a wide range of precision electronic pressure regulators (EPRs) for controlling air or inert gas for a variety of applications and are recommended for use in controlling the pilot reference pressure for Equilibar dome-loaded back pressure regulators and vacuum regulators. To give you the best possible experience, this site uses cookies. Valves, Valve Magazine features overview of Equilibar technology, Look at the part number listed on the regulators label, In general, the number right before the first dash is the revision number. In the image to the right you see a plot of a fluid pressure emulating cardiovascular pressure. The summer 2022 issue of Valve Magazine includes a comprehensive overview of the direct sealing diaphragm valve technology that is at the core of Equilibars patented devices. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Often, a mechanically adjusted regulator is used to regulate a high pressure gas source (often a nitrogen bottle) down to the desired pilot pressure. Very repeatable. The summer 2022 issue of Valve Magazine includes a comprehensive overview of the direct sealing diaphragm valve technology that is at the core of Equilibars patented devices. Two separate Mass Flow Controllers (MFCs) are used to inject reactants in the vessel. Fax: +1-801-504-4439. When using a volume booster, the GP2 can be used to achieve higher accuracy by compensating for the hysteresis of the mechanical pilot operated regulator. *Not intended for hazardous/explosive environments. The EPR-3000 control pressure precisely in the high pressure range of 0 3000 psig / 0 206 bar(g). Watch the video below to see how the EPR 3000 regulator works. Written by Equilibar founder Jeff Jennings, the article explains the background of this unique method of fluid control and describes how it is capable of providing robust backRead More, 320 Rutledge Rd. The PID flow control loop controls the signal to the electronic pressure regulator, which thereby controls the set-point of the dome-loaded BPR with an air pressure signal. Installation & Maintenance. For example, with a 0 10 V = 0 1 psig / 68 millibar(g) unit, giving the unit a command of 5V tells the unit to go to 0.5 psig / 34 millibar(g) and giving the unit a command of 10V tells the unit to go to 1 psig / 68 millibar(g). Boxes 1-4 serve the same purpose as above. Installation & Maintenance. The vessel pressure is monitored by the process computer. The EPR-3000 is a significant advance in the precision and convenience of electronic pressure control above 1000 psig / 69 bar(g). Dome-loaded means that the setpoint to the pressure regulator is provided by a fluid (typically air) pressure on the top dome port. These devices are called by many names, including: On this website, the term Electronic Pressure Regulator will be used to refer to pressure controllers using servo or solenoid valves. Two valve pressure controllers include a fill and vent valve. 28732 United States, Tel: +1-828-650-6590 There are several critical parameters for the successful application of this technology. The QPV electronic pressure regulator accepts an analog voltage (0 10V) or current (4 20 mA) signal. While this example does use a PID flow controller, the reaction time of this system is infinitely faster than that of a PID controlled control valve. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. The dome-loaded design allows initial setup with a manually controlled system, then subsequent setup with electronic control without having to purchase a new back pressure regulator. A small internal pressure sensor monitors the output pressure and a digital or analog controller adjusts the timing of the servo valves to maintain the set-point. You are here: Home Products Electronic Pressure Regulators EPR 1000 High Precision Electronic Pressure Regulator, EPR 1000 High Precision Electronic Pressure Regulator. This means that when given the same command, the unitwill always be within the 1% range of pressure, but will also be within 0.2% (of full scale) of the same pressure. Because both the EPR-3000 and the back pressure regulator have no significant hysteresis or dead-band, it is possible to precisely control reaction conditions even with highly varying process flow rates. Two valve pressure controllers include a fill and vent valve. Digital electronic pressure control with microprocessor and keypad control. These servo EPRs allow for output pressures significantly greater than previous pressure transducers. The EPR-3000 can be quickly commanded using the convenient keypad interface. These electronic pressure regulators offer higher pressures and more flexibility and robustness than previous technologies, which were often marketed as electro-pneumatic transducers ( see how simple electro-pneumatic pressure transducers work). It could land anywhere between 245 Pa and 255 Pa for an accuracy of +/- 5 Pa. Repeatability: Say the unit hits 250.625 Pa, it will always be within 0.2% of that number or, 1 Pa. The PID is therefore only used for small adjustments to the header pressure, and can be tuned slower while also enjoying instantaneous reaction from the regulator. The EPR 1000 will work in a similar way by providing control up to 1000 psi. Outlet pressure is sensed and controlled through a type of PID loop. While many industrial pressure controllers utilize binary fill and vent valves, or analog fill valves with binary vent valves, the EPR-3000 uses two analog valves for highly precise and resolute control throughout the entire range. The EPR 150 is an electronic pressure regulator designed for electronic pressure control of inert gases. The type of electronic pilot pressure regulator selectedwill be based on the maximum pressure to be controlled: The PRA High Pressure Electronic Pressure Regulator, Electronic Pressure Regulators Available from Equilibar, The summer 2022 issue of Valve Magazine includes a comprehensive overview of the direct sealing diaphragm valve technology that is at the core of Equilibars patented devices.
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