Vacuum Regulators

Schmalz has developed vacuum regulators (Type VR) to compensate for pressure variations inherent in vacuum generators. This range of industrial vacuum pressure regulators is available in South Africa and sub-Saharan Africa from Tectra Automation.

Vacuum regulators are used to maintain a required vacuum level in a system and are also suitable for measuring and testing applications. Schmalz vacuum regulators operate according to a force-balance principle. Each regulator is housed in robust aluminium and can be continuously adjusted using a spindle.

Features:

  • Adjustment range from -0.9 to -0.014 bar
  • Robust aluminium housing
  • FPM diaphragm
  • Mechanically adjustable vacuum regulator
  • Constant vacuum regulation

Benefits:

  • Precise manual adjustment
  • Excellent repeatability
  • Precise maintenance of the set value unaffected by pressure variations

Vacuum Control Devices

There are two types of vacuum control devices: vacuum regulatorsand vacuum breakers.

Vacuum Regulators control the process vacuum by throttling flow between the vacuum generator and the process. The regulator responds to pressure variations to maintain the selected vacuum value.

Vacuum Breakers - also known as Vacuum Relief Regulators allow ambient air into a vacuum system to control the vacuum pressure. These pressure regulators operate with atmospheric pressure on the upper side.

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Selecting a Vacuum Pressure Regulator

When selecting a vacuum pressure regulator for an industrial vacuum system, consider the required vacuum range, flow rate, connection size and operating environment. The regulator must be able to maintain the required set value while accommodating changes in demand and variations from the vacuum generator.

Schmalz Type VR vacuum regulators are mechanically adjustable and designed for applications requiring a stable, repeatable vacuum level. Their robust aluminium housing and FPM diaphragm make them a dependable solution for factory automation, measuring and testing applications.

To specify the right vacuum regulator for a vacuum pump or vacuum generator, provide the following information when making an enquiry:

  • Required operating vacuum & set-point
  • Required flow rate
  • Vacuum generator or pump details
  • Process or application requirements
  • Connection & installation requirements
  • Ambient operating conditions

Our vacuum technology specialists can help identify the appropriate Schmalz VR vacuum controller for your application.

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Vacuum Regulation in Industrial Automation

Stable vacuum is essential where process performance, handling reliability or repeatable testing results depend on maintaining a defined vacuum level. A mechanical vacuum pressure controller can help compensate for vacuum fluctuations caused by changing operating conditions within the system.

Typical uses include:

  • Vacuum handling & gripping systems
  • Pick-and-place & material-handling automation
  • Measuring & testing tasks
  • Vacuum generation systems requiring a controlled process vacuum
  • Automated manufacturing & assembly applications
      

For applications that require vacuum monitoring, pair the regulator with a compatible vacuum manometer or warning device. Where the aim is to reduce excessive vacuum by admitting ambient air, consider a vacuum breaker or vacuum relief regulator instead.

Related Vacuum Components

Build a more controlled and visible vacuum system with compatible monitoring components:

  • Warning devices – help alert operators to defined vacuum conditions.
  • Vacuum manometers – enable vacuum level measurement during set-up, operation and troubleshooting.
  • Cables and plugs for vacuum switches – support reliable electrical connection of vacuum monitoring equipment.

Frequently asked questions:

How do I select the right vacuum regulator for my application?
Start by identifying the vacuum set value your process requires, as well as the required flow rate, connection size and operating conditions. The regulator should suit the performance of the vacuum generator and the demands of the application. For accurate selection, provide your required vacuum level, flow requirement, vacuum pump or generator details and installation requirements when requesting assistance.
 
Can a vacuum regulator be used with a vacuum pump?
Yes. A vacuum regulator for a vacuum pump can be installed in a vacuum system to help maintain the required process vacuum, even when vacuum demand or generator performance varies. The regulator must be correctly sized for the system and should be selected according to the required vacuum range and flow capacity.
 
What is the difference between a mechanical and a digital vacuum regulator?
A mechanical vacuum regulator is manually adjusted and maintains the selected vacuum level using mechanical components. It is well suited to industrial applications that require a stable, repeatable vacuum setting.

A digital vacuum regulator uses sensors and electronic control to automatically adjust the vacuum level. This may be more appropriate where remote adjustment, automated set-point changes or integration with a PLC is required. Schmalz Type VR regulators are mechanically adjustable.
 
Can I use a vacuum regulator with a gauge?
Yes. A vacuum gauge or manometer can be used with a vacuum regulator to monitor the vacuum level during set-up, operation and troubleshooting. The gauge enables operators to confirm the system vacuum and adjust the regulator accurately to the required set value. Select a compatible gauge and connection arrangement for the system.
 
What vacuum range can Schmalz VR vacuum pressure regulators control?
Schmalz VR vacuum pressure regulators are available in versions with adjustment ranges from -990 to -14 mbar and -950 to -25 mbar, depending on the model. Confirm the required operating range, flow rate and connection size before selecting a regulator for your application.

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