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. The QPV1 will go to the desired pressure accurate to within 1% of full scale calibrated range (for pressures below 1 psig / 68 millibar(g)). The fluid on the dome is controlled by a manual pressure reducing regulator (PRR) or an electronic pressure regulator. Equilibar provides a complete solution for electronic back pressure control by offering a selection of electronic pressure regulators to control the dome setpoint signal. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Servo electronic pressure regulators (EPRs) work by using a push valve and a vent valve to maintain the outlet pressure at the desired set-point. Two valve pressure controllers include a fill and vent valve. Our application engineers will work with you to find the right solution for your automated application. Dome-loaded pressure regulators come in both back pressure or pressure reducing varieties. 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. 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. 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. Configured to meet specified range from vacuum to 50 psig / 10 bar(g), Configured to meet specified range up to 500 psig /35 bar(g) max, Configured to meet specified range up to 1000 psig /69 bar(g) max. The EPR 150 will work in a similar way by providing control up to 150 psi. Continuing to use this site means you agree to our use of cookies. 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 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. You are here: Home Back Pressure Regulator Electronic Back Pressure Regulators. The EPR 500 will work in a similar way by providing control up to 500 psi. This approach is useful where the pressure must be maintained in a location removed from the location of the EPR, or where the customer has a higher quality pressure transmitter than provided in the EPR. Boxes 1-4 serve the same purpose as above. 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. Equilibar QPV1 electronic pressure regulator. The solenoid valves are rated for lifetimes in the range of 25 to 150 million cycles. Similarly, with a 4 20 mA = 0 1.0 psig / 68 millibar(g) unit, giving the unit a command of 12 mA tells the unit to go to 0.5 psig / 34 millibar(g) and giving the unit a command of 20 mA tells the unit to go to 1.0 psig / 68 millibar(g). However, many applications would like to have the pilot pressure to the Equilibar set remotely by an electronic command signal. Watch the video below to see how the EPR 3000 regulator works. The BPR allows only enough gas to escape from the reactor to maintain the precise desired pressure setting. Continuing to use this site means you agree to our use of cookies. The vessel pressure is monitored by the process computer. Fletcher, North Carolina Boxes 1-4 serve the same purpose as above. You are here: Home Products Electronic Pressure Regulators EPR 3000 High Precision Electronic Pressure Regulator, EPR 3000 High Precision Electronic Pressure Regulator. The QPV can be calibrated to any pressure range from as low as 0 2 in H20 (0 500 Pa, 0 5 millibar(g)) to as high as 0 150 psig (0 1000 kPa, 0 10 bar(g)). 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 QPV series electronic pressure regulator has calibration ranges as low as 0 2 in H20 (0 500 Pa, 0 5 millibar(g)) with an accuracy of +/-0.25% of full scale calibration for pressure ranges above 1 psig / 68 millibar(g) and an accuracy of 1% of full scale for pressures ranges 1 psig / 68 millibar(g) and below. Two valve pressure controllers include a fill and vent valve. Literature & Specifications Contact an application engineer to discuss your specific application. Fax: +1-801-504-4439. The PRA is for use with air or inert gases only and is not designed for hazardous or explosive environments. Benchtop lab testing where pressure control is required, but the customer does not want to also purchase a controller. Considerations for Oxygen Rich Applications, Diaphragm Selection for Equilibar Regulators, Water Hammer and Chatter with Equilibar Back Pressure Regulators, Equilibars ultra sensitive dome-loaded back pressure regulators, 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. Pressure reducing regulators control their outlet pressure and open to increase downstream pressure (see more about the differences). To give you the best possible experience, this site uses cookies. Fax: +1-801-504-4439. 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. You are here: Home Products Electronic Pressure Regulators EPR 150 High Precision Electronic Pressure Regulator, EPR 150 High Precision Electronic Pressure Regulator. The PRA is a complete turn keyassembly consisting of three distinct parts; an electronic pilot control regulator, a mechanical pilot operated ratio regulator, and an electronicpressure transducer. The volume of the gas space can affect the tuning of the valves. Equilibar offers Electronic pressure regulators in a variety of ranges: below 150psi, up to 500psi, up to 1000psi and as high as 3000psi max. These electronic valves work by using a sensitive pressure transducer to sense minute changes in pressure and adjust the gas input and exhaust using solenoid valves. These EPRs typically require a DC power supply and a set-point signal. *Meant for use with air or inert gases only. Considerations for Oxygen Rich Applications, Diaphragm Selection for Equilibar Regulators, Water Hammer and Chatter with Equilibar Back Pressure Regulators, 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. Back pressure regulatorscontrol their inlet pressure and open to reduce upstream pressure. Dome-loaded pressure regulators, coupled with EPRs provide comprehensive computer control to a process liquid, gas, or mixed phase stream. 28732 United States, Tel: +1-828-650-6590 The schematic above shows how a dome-loaded back pressure regulator can be used to control the flow rate to a dispensing 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. *Not intended for hazardous/explosive environments. 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. Boxes 1-4 serve the same purpose as above. In other applications an active control loop is desired and the Equilibar back pressure regulator must be operated by an electronic signal. Considerations for Oxygen Rich Applications, Diaphragm Selection for Equilibar Regulators, Water Hammer and Chatter with Equilibar Back Pressure Regulators, 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. Interestingly, it is possible to use these devices to control phenomena other than pressure. Boxes 1-4 serve the same purpose as above. On GP2 units, this signal originates from the external transducer. To give you the best possible experience, this site uses cookies. Fax: +1-801-504-4439. The EPR-3000 control pressure precisely in the high pressure range of 0 3000 psig / 0 206 bar(g). Fletcher, North Carolina 28732 United States, Tel: +1-828-650-6590 See Schematic below. 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 EPR 150 is an electronic pressure regulator designed for electronic pressure control of inert gases. *Not intended for hazardous/explosive environments. *Meant for use with air or inert gases only. In the past decade, the fastest growing type of electronic pressure regulator has been the servo valve design, which uses two high speed servo or solenoid valves to increase or decrease gas pressure as needed to maintain pressure. Actual liquid pressure is yellow; target waveform is red. Boxes 1-4 serve the same purpose as above. While many industrial pressure controllers utilize binary fill and vent valves, or analog fill valves with binary vent valves, the EPR-150 uses two analog valves for highly precise and resolute control throughout the entire range. On the other hand, large chemical plants rely on traditional pressure control valves due to economic scale factors. Literature & Specifications For example, it is possible to control linear air cylinder movement by sending a linear displacement feedback signal to the EPR. ( Details). Most models also offer a feedback signal informing the pressure sensor value. Two separate Mass Flow Controllers (MFCs) are used to inject reactants in the vessel. Watch the video below to see how the EPR 3000 regulator works. To give you the best possible experience, this site uses cookies. Literature & Specifications Continuing to use this site means you agree to our use of cookies. Configured to meet specified range from vacuum to 150 psig / 10 bar(g), Configured to meet specified range up to 500 psig /35 bar(g). Designed for static to low- flow applications of inert gas such as nitrogen or air, Compatible with digital or analog communications, Electronic pilot regulator for Equilibar back pressure regulator, Look at the part number listed on the regulators label, In general, the number right before the first dash is the revision number. 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 orifices in these valves come in several different sizes and should be matched according to the required flow rate. Back Pressure 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. 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. 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. Read about automated process control using electronic pressure regulators, or electro-pneumatic controllers. Contact our engineers to discuss your application. 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. 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. Boxes 1-4 serve the same purpose as above. 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. You are here: Home Low Pressure Control Solutions Low Pressure Electronic Regulator. The EPR 500 High Performance Digital Electronic Pressure Regulator is: *Not intended for hazardous/explosive environments. You are here: Home Products Electronic Pressure Regulators GP High Pressure Electronic Pressure Regulator, GP High Pressure Electronic Pressure Regulator. Designing a pressure control system can be a long-term project with frequent specification changes. GP series product comes with a monitor output signal. Below are some example calibration ranges and their associated accuracies and repeatabilities. In the schematic at right, an external pressure transmitter is connected directly to the process, and provides feedback to the controller. *Not intended for hazardous/explosive environments. Fletcher, North Carolina Learn about electronic pressure regulators from Equilibar. Watch the video below to see how the EPR 3000 regulator works. 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 The EPR 3000 is a high precision electronic pressure regulator designed for electronic pressure control of inert gases. Boxes 1-4 serve the same purpose as above. The controller will adjust the output pressure as necessary in order to match the displacement feedback signal to the set-point signal. Some models include a small bleed valve (vent a small amount of gas to atmosphere) for very low or no flow applications. The EPR-3000 is a significant advance in the precision and convenience of electronic pressure control above 1000 psig / 69 bar(g). Easily modified for custom applications. 28732 United States, Tel: +1-828-650-6590 Fax: +1-801-504-4439. It is oftentimes used as a pilot regulator for Equilibar back pressure regulators when high precision electronic control is desired for an application. 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 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. Learn more about Equilibars ultra sensitive dome-loaded back pressure regulators. 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. Installation & Maintenance. To give you the best possible experience, this site uses cookies. That is because the control valve action has to swing suddenly with every change in dispensing flow rate. The vessel pressure is monitored by the process computer. Boxes 1-4 serve the same purpose as above. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Considerations for Oxygen Rich Applications, Diaphragm Selection for Equilibar Regulators, Water Hammer and Chatter with Equilibar Back Pressure Regulators, Valve Magazine features overview of Equilibar technology. 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. You are here: Home Equilibar Electronic Pressure Regulators Automated Process Control. Fax: +1-801-504-4439. Some example applications are shown below and more application examples can be found on our applications pages. Fletcher, North Carolina Considerations for Oxygen Rich Applications, Diaphragm Selection for Equilibar Regulators, Water Hammer and Chatter with Equilibar Back Pressure Regulators, Valve Magazine features overview of Equilibar technology, Electronic pilot regulator for an Equilibar back pressure regulator. Fax: +1-801-504-4439. Look at the part number listed on the regulators label, In general, the number right before the first dash is the revision number. Continuing to use this site means you agree to our use of cookies. To give you the best possible experience, this site uses cookies. Fletcher, North Carolina 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. 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). 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. However, the BPR will hold the header pressure constant without any change in controller output. New digital pressure control technology with integrated microcontroller. The GP series control valve is an electronic pressure regulator designed to precisely control the pressure of gaseous media proportional to an electronic signal in pressure ranges up to 1000 psig (69 bar(g)). 28732 United States, Tel: +1-828-650-6590 To give you the best possible experience, this site uses cookies. Benchtop lab testing where pressure control is required, but the customer does not want to also purchase a controller. Considerations for Oxygen Rich Applications, Diaphragm Selection for Equilibar Regulators, Water Hammer and Chatter with Equilibar Back Pressure Regulators, see how simple electro-pneumatic pressure transducers work, 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. The schematic above shows how a dome-loaded back pressure regulator can be used to control the flow rate to a dispensing application. Continuing to use this site means you agree to our use of cookies. The unit will control proportional to the signal received. 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. The PRA can also be used as a stand alone assembly in any application that requires an electronic signal to regulate a high pressure compressed gas. You are here: Home Equilibar Electronic Pressure Regulators How Electronic Pressure Regulators Work. Fax: +1-801-504-4439. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. 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. You are here: Home Equilibar Electronic Pressure Regulators High Pressure Electronic Pressure Regulators. Using dual analog valve construction, the EPR-3000 avoids the waste of inert supply gas present with some competitive solutions. 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 Continuing to use this site means you agree to our use of cookies. Boxes 1-4 serve the same purpose as above. Power supply for the unit (12 30 VDC) can be provided through an included power brick, or provided through the DIN connector. Fax: +1-801-504-4439. Two separate Mass Flow Controllers (MFCs) are used to inject reactants into the vessel. Fletcher, North Carolina Continuing to use this site means you agree to our use of cookies. For Example: A 0 500 Pa calibrated unit. However, the BPR will hold the header pressure constant without any change in controller output. Back Pressure Regulators, Industrial Service These devices typically continue to refer to the internal pressure sensor to control the valve timing, but bias the signal from the internal pressure signal as necessary to match the external feedback signal to that of the command (set-point) signal. Fax: +1-801-504-4439, Low Pressure Regulator for Medium and High Flow, Ultra Low Pressure Regulator for Low Flow. 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. All Equilibar precision back pressure regulators are pilot operated and require a compressed gas signal to act as the set point. 3D Models (.stp file), Brass 3.75 Lbs (1.75 Kg); Stainless Steel 3.73 Lbs (1.73 Kg), 3.00 (76.20mm) Diameter x5.13 (130.27mm) Height, 1/8 inch NPT female Outlet pressure is sensed and controlled through a type of PID loop. For information about ATEX rated controllers, please contact us. In the image to the right you see a plot of a fluid pressure emulating cardiovascular pressure. Outlet pressure is sensed and controlled through a type of PID loop. Very repeatable. 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. However, the repeatability spec of 0.2% may be more applicable. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. There are several critical parameters for the successful application of this technology. Back Pressure Regulators, General Service 28732 United States, Tel: +1-828-650-6590 An available option for most EPRs is that of 2-Loop control, which uses an external feedback signal. To give you the best possible experience, this site uses cookies. Continuing to use this site means you agree to our use of cookies. Equilibar sells back pressure regulators. Literature & Specifications Fletcher, North Carolina In the schematic at right, the EPR-3000 is used to control the output pressure of a catalyst research reactor. Installation & Maintenance. Controlling ultra low pressures in the inches of water, pascal, and millibar range can be quite difficult with traditional spring loaded regulators. 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. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. *Meant for use with air or inert gases only. The primary reason for this is due to how challenging it is to get valve parts to move with such low pressures. To give you the best possible experience, this site uses cookies. Below is a list of these readily available part numbers: 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. 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. Benchtop lab testing where pressure control is required, but the customer does not want to also purchase a controller. Note: These are just example calibration ranges. The QPV is surprisingly affordable and Equilibar offers a few models off the shelf for quick delivery. 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. Learn how electronic pressure regulators work. This approach has certain advantages over traditional pressure control valves which typically have a delayed response time, limited flow ratios, and depend on PID loop tuning. 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. 28732 United States, Tel: +1-828-650-6590 For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Most manufacturers have maximum output pressures in the range of 600 to 1000 psig / 41 to 68.9 bar(g). The EPR-3000 can be quickly commanded using the convenient keypad interface. To give you the best possible experience, this site uses cookies. Electronic Back Pressure Regulator Back pressure control is conveniently achieved by directly piloting the Equilibar valve with an electronic pilot regulator such as the Equilibar QPV shown here. 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. Electro-pneumatic applications for pressures less than 1000 psig / 68.9 bar(g) can make use of other electronic pressure regulator models detailed here. *Not intended for hazardous/explosive environments. 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. For system automation, the device can be automated through either the 0 5 VDC analog interface or by use of a Serial (RS-458) connection. To give you the best possible experience, this site uses cookies. It is oftentimes used as a pilot regulator for Equilibar back pressure regulators when high precision electronic control is desired for an application. The Equilibar back pressure regulator provides stability through 1000:1 flow rate range. *Meant for use with air or inert gases only. For all models EXCEPT the GS Series, follow this table: To find the revision number of the GS model, follow the table below. Installation & Maintenance. The EPR-3000 is designed for static to low- flow applications of inert gas such as nitrogen or air. 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. Electronic Pressure Regulators from Equilibar, Literature & Specifications One common application is to provide a high pressure pilot signal for dome-loaded regulators requiring pressures above 1000 psig / 69 bar(g). Continuing to use this site means you agree to our use of cookies. 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).