Equilibar® Precision Vacuum Regulator
Incredibly stable vacuum control across varying flow rates!
Equilibar® now introduces a new type of vacuum regulator with more than
5X the flow stability of traditional spring regulators. That means that your vacuum
process can remain stable even through wide variations in flow rate and supply pressures.
- Uses a convenient 20-turn knob to adjust vacuum set-point
- Is installed between your vacuum pump and your process
- Controls in range 0 - 30 inHg
- Sizes available 1/4" through 2"
- Available in corrosive resistant materials (see below)
EVR Vacuum Regulator Brochure
Computer Automation of Vacuum
Dramatic Stability Improvement
This chart shows the superior flow stability of the 1/2" Equilibar®
over the Fairchild 16.
Note that the Fairchild works by bleeding air into the vacuum system rather
than directly modulating the applied vacuum, explaining the opposite curvature.
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Now Available in larger pipe sizes
The Equilibar Precision Vacuum Regulator is now available in larger pipe sizes by
utilizing a weight-saving welded construction design. Same incredible precision
at pipe sizes up to 2" NPT(standard) with larger sizes and other end fittings upon
request. All EVR regulators
1" and larger will be quoted using this welded construction unless requested
otherwise.
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Using the Equilibar® Vacuum Regulator
Using our new precision vacuum regulator is a snap. Simply connect your
vacuum pump or house vacuum utililty to the Outlet port. Connect your process requiring
precision vacuum control to the Inlet port. Adjust vacuum knob to achieve the
desired vacuum level.
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Stability across widely varying flow rates
Four orders of magnitude!
This chart shows flat line pressure stability across an incredible 4 orders
of flow rate magnitude. Competitive data, where available, is typically published
across a narrow range of flow.
Why is ultra low flow performance important? If your flow rate
falls below the minimum for the regulator, then excessive vacuum
can result. |
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Stability across varying Supply Pressure
This chart at right shows the excellent vacuum stability as the vacuum pump supply pressure varies widely. |
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How the Equilibar® Vacuum Regulator works
Our new vacuum regulator uses the same patented technology as the Equilibar® Precision Back Pressure Regulator, and can
precisely match your process pressure to that of a fluid reference, or signal pressure.
The Equilibar® Vacuum Regulator contains a highly sensitive 20-turn vacuum pressure regulator on the top to conveniently generate this set-point pressure.
Taken together, these two regulators provide highly sensitive and stable control with all the simplicity and convenience of the traditional products.
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Selecting the right size
This chart shows the projected vacuum performance at various regulator
body sizes. If you don't have a prefered piping size in mind, select the smallest
regulator that gives the precision that your application requires. |
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Available Model Sizes
Pipe Port | Model Number |
| 1/4" NPT | EVR-2 |
| 3/8" NPT | EVR-3 |
| 1/2" NPT | EVR-4 |
| 3/4" NPT | EVR-6 |
| 1" NPT | EVR-8 |
| 1 1/2" NPT | EVR-12 |
| 2" NPT | EVR-16 |
* Note: Other thread standards available
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Body Material Options
- Stainless Steel 304 or 316
- Anodized Aluminum
- PVC
- PTFE
- Others as required
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Diaphragm Material Options
- Viton
- PolyEthylene
- PTFE
- Buna N
- Others as required
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EVR Vacuum Regulator Brochure
Food Packaging White Paper:
Food Vacuum White Paper
Application Bulletin:
Food Vacuum Packaging