Precision Vacuum Regulators for Accuracy and Precision | Equilibar

Precision Vacuum Regulators for Lower Flow Rates

High Resolution and Accuracy for Piping Sizes 1/4" to 1"

Equilibar precision vacuum regulators (EVR) are designed specifically to control a highly stable inlet pressure across widely varying input conditions. These regulators show very little effect due to variation in supply vacuum or changes in flow rate. Equilibar precision vacuum regulators work differently than traditional vacuum control valve designs. The EVR uses a flexible diaphragm as the only moving part. This diaphragm is used to directly seal against the internal valve orifices, eliminating the “stiction” commonly found in traditional vacuum control valves that rely on dynamic O-ring or wiper type seals. The Equilibar design is frictionless and can control vacuum with very high resolution. Learn more about how they work.

Our lower flow precision vacuum regulators are available in sizes ranging from 1/4″ to 1″ with material options of stainless steel 316/316L, anodized aluminum or PVC depending on the application requirements for temperature and chemical resistance. Each EVR is delivered with a manual pilot setpoint regulator for convenient knob adjustment.

 

Precision Vacuum Regulators

1/2″ EVR-GDS4 with Manual Pilot Setpoint Adjuster

Information about lower flow EVR series options is detailed below. Contact an applications engineer for more assistance.

Drawing of a precision vacuum regulator

Metallic Vacuum Regulator Details

Model Inlet / Outlet Port Reference Port Std. Body Materials Diameter (Dim A) Height* (Dim B) Cv Range (Precision) Available End Fittings
(inch) Min Max Std Available
EVR-GSD2 ¼” 1/8″ SS316 (SS) Anodized Aluminum (AA) 3.0 1.3 1E-3 1.2 NPT Vacuum Flange BSPP; SAE
EVR-GSD3 3/8″ 3.5 1.4 1E-3 1.8
EVR-GSD4 ½” 4.5 1.6 1E-3 3.2
EVR-GSD6 ¾” 6.0 2.0 1E-2 5.5
EVR-GSD8 1″ 7.0 2.6 1E-2 8.5
*Height does not include 3″ manual set point regulator.

PVC Vacuum Regulator Details

Model Inlet / Outlet Port Reference Port Std. Body Materials Diameter (Dim A) Height* (Dim B) Cv Range (Precision) Available End Fittings
(inch) Min Max Std Available
EVR-2 ¼” 1/8″ PVC 3.25 1.5 1E-3 1.2 NPT Vacuum Flange BSPP; SAE
EVR-3 3/8″ 3.75 1.6 1E-3 1.8
EVR-4 ½” 4.75 1.8 1E-3 3.2
EVR-6 ¾” 6.25 2.25 1E-2 5.5
EVR-8 1″ 7.25 2.9 1E-2 8.5
*Height does not include 3″ manual set point regulator.

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

Videos about Precision Vacuum Regulators

This video discusses the difference between a vacuum breaker and a direct vacuum regulator, like the Equilibar. It shows how the Equilibar direct vacuum regulator maintains high accuracy even as the system flow rate varies.

Follow this link to watch a video about vacuum control for high flow rates.

Equilibar News
David Reed with SBA award

Equilibar Named NC Small Business Exporter of the Year during SBA NC Small Business Week Virtual Awards Ceremony

For more than 50 years, the U.S. Small Business Association (SBA) has celebrated National Small Business Week to  recognize the critical contributions of America’s entrepreneurs and small business owners.  As part of this year’s celebration, Equilibar was honored to receive the 2020 award for North Carolina Small Business Exporter of the Year.  The award was Read More

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