Electronic Vacuum Valves for Process Automation from Equilibar

Electronic Vacuum Valves for Process Automation

Electronic Vacuum Regulating Valves Sizes 1.5″ to 4″

Equilibar higher flow electronic vacuum regulating valves provide a much faster and more precise solution than traditional butterfly valves with PID control.

In the Equilibar® two-stage pilot operated solution, a small electronic vacuum pilot regulator sends a vacuum setpoint signal to the larger back pressure regulator (BRP), resulting in a controlled vacuum at the inlet of the BPR at a direct 1:1 relationship. An Equilibar high resolution electronic vacuum pilot regulator is used for this purpose. This combination of an electronic vacuum pilot regulator with a precision pilot operated back pressure regulator produces a complete electronic vacuum valve package. Electronic vacuum valves are available in traditional 4-20mA analog or in modern serial digital inputs.

These valves can be used in open loop mode or closed loop mode. In open loop, a command signal from the main computer controller is sent to the electronic vacuum pilot regulator. The vacuum pilot regulator transmits a vacuum setpoint signal to the Equilibar vacuum regulator which makes adjustments to bring the process vacuum very close to the pilot vacuum setpoint. Changes in flow rate may cause small errors in open loop mode.

In closed loop mode, the process vacuum pressure is monitored by a separate vacuum pressure sensor and command signal to the pilot regulator is adjusted to bring that process pressure to match desired setpoint. This PID action may be accomplished inside the electronic pressure regulator, depending on the model, or configured in the process control system.

Contact an application engineer to discuss the best way of automating your process vacuum.

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image of Equilibar EVR-BD24 with QPV electronic pressure control pilot

Stainless Steel EVR-BD24 with Integrated QPV Electronic Pilot Regulator

Electronic Vacuum Regulating Valve

dimensions for EVR-BD

Dimensional Drawing for EVR-BD Series

Metallic High Flow Vacuum Valve Details

Model Inlet/Outlet Port Reference Port Standard Body Materials Dim A Dim B Cv Range (precision) Available End Fittings
Inch Min Max Std Available
EVR-BD12 1.5″ 1/8″ SS316 (std)
Anodized Aluminum
9.5 3.9 1.0E-2 14.3 NPT BSPP;

150# Flange

EVR-BD16 2″ 1/8″ 11 4.1 3.0E-2 30.2
EVR-BD24 3″ ¼” 15 6.1 6.0E-2 60
EVR-BD32 4″ ¼” 20 8.1 1.5E-1 160

Polymeric High Flow Vacuum Valve Details

Model Inlet / Outlet Port Reference Port Body Material Diameter Height* Cv Range (Precision) Available End Fittings
(inch) Min Max Std Available
EVR-BD12 1.5″ 1/8″ PVC 9.5 4.3 1E-2 14.3 NPT BSPP;

150# Flange

EVR-BD16 2″ 11 5.1 3E-2 30.2
EVR-BD24 3″ 1/4″ 15 8.8 6E-2 60
EVR-BD32 4″ 20 9.6 1.5E-1 160
*Height is measured from top surface of regulator to the center of pipe elbow. Does not include 3″ manual set point regulator.

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Other Equilibar Vacuum Control Products:

image of equilibar high precision vacuum regulator EVR with mechanical pilotHigh Precision Vacuum Regulators 1/4" to 1" 0 - 30 inHg / 762 mm Hg
image of Equilibar High Flow Vacuum Regulator with mechanical vacuum pilot regulatorHigh Flow Vacuum Valves 1.5" to 4" 0 - 30 inHg / 762 mm Hg
image of anodized aluminum Equilibar vacuum regulator with QPV1 electronic pressure regulator pilotElectronic Vacuum Regulators 1/4" to 1" 0 - 30 in Hg / 762 mm Hg
image of Equilibar BD24 with QPV electronic pressure control pilotLarger Electronic Vacuum Valves 1.5" to 4" 0 - 30 in Hg / 762 mm Hg
photo collage of vacuum pilot regulatorVacuum Pilot Regulators mechanical, electronic and remote sensing
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As summer continues to produce record high temperatures across the Northern Hemisphere, a new application page on cryogenic valves from Equilibar offers a nice change of pace. Cryogenics is the branch of physics or engineering that studies how materials and processes behave at extremely low temperatures. In general, temperatures below -150º C are considered cryogenic. Read More

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