The EIM TEC2 Electric Valve Actuator

The EIM TEC2 is the next step in reliable high-performance digital valve control to make your work easier and safer. The TEC2 includes a robust and compact design that are widely used on valves for marine, oil and gas, chemical, power, and water and wastewater applications. Accurate torque sensing is accomplished using a rotary Hall-Effect encoder directly connected to torque pinion kept active in both motor and manual operation. The TEC2 has a compact profile, patented, Remote Display Module that puts local controls within easy access for safe operation, diagnostics, configuration or monitoring for hard to reach locations or limited access areas.


Automatic Controls of Virginia
(804) 752-1000

Wastewater Treatment Facilities as Early Warming Sentinels for Coronavirus

New studies show that SARS-CoV-2, the virus causing COVID-19, is shed in human feces and is collecting in our city sewers.  If the pandemic continues in waves as the latest estimates believe, wastewater treatment plants could provide early warnings to prevent ICUs and hospitals from being swarmed.

It needs to be mentioned that experts believe, based on previous coronavirus research, that SARS-COVID-2 is effectively removed through traditional water treatment processes. The focus on these public health surveillance efforts track virus levels before treatment.

Environmental microbiologists have studied pathogens in sewage for decades. In 1989, Israel set up a Polio virus sewage surveillance system. The use of sewage pathogen monitoring in wastewater treatment facilities as a public health surveillance tool, however, is a fairly new area of study. 

Biobot, Somerville, MA company who specializes in wastewater epidemiology, is establishing protocols to test sewage for SARS-CoV-2. If successful, this data will give communities a dynamic map of the virus as it spreads to new places.

Data from sewage will enable communities to:
  1. Measure the scope of the outbreak independent from patient testing or hospital reporting, and include data on asymptomatic individuals,
  2. Provide decision support for officials determining the timing and severity of public health interventions to mitigate the overall spread of the disease,
  3. Better anticipate likely impact on hospital capacity in order to inform hospital readiness and the necessity of public health interventions,
  4. Track the effectiveness of interventions and measure the wind-down period of the outbreak, and
  5. Provide an early warning for reemergence of the coronavirus (if it does indeed have a seasonal cycle).
To learn more about their program, visit the Biobot website.

Other useful links about the effort to use wastewater for SARS-CoV-2 tracking:

Automatic Controls of Virginia is Now the Authorized CCS DualSnap Distributor in Virginia and Washington D.C.

Automatic Controls of Virginia is very pleased to be appointed the Authorized Distributor for Custom Control Sensors, also known as CCS DualSnap, in the Commonwealth of Virginia as well as in Washington, D.C.

CCS DualSnap is a leader in providing pressure and temperature sensing products for the Aerospace, Defense, Industrial and Energy industries. CCS’ designs utilize the proven, rugged “Dual-Snap®” disc spring and advanced sensing technologies to provide their customers superior solutions for pressure and temperature applications.

For more information, contact Automatic Controls of Virginia. Call them at (804) 752-1000 or visit their website at

Glossary of Valve Terms and Acronyms

Glossary of Valve TermsTerminology plays a critical role in the understanding of specialized or technical contexts. Understanding the specific terminological meaning of the technical contexts in process control and industrial systems assists in defining and communicating the main message of a document, which in turn allows stakeholders the ability to transmit the content much more effectively.

A glossary is an alphabetical list of terms in a particular domain of knowledge with the definitions for those terms. It's purpose is to document the key words and phrases which are regularly contained in a body of content.

Val-Matic, a leading manufacturer of check valves, quarter turn shut-off valves and air valves for water/wastewater, industrial and building markets, has assembled an outstanding glossary of terms and acronyms used in the valve, process flow, and process piping segments. This is a must-have resource for anyone new in in industrial engineering, maintenance, or procurement.

You can download the Val-Matic Glossary of Valve Terms and Acronyms from this Automatic Controls of Virginia web page.

Coronavirus Statement and Update

We at Automatic Controls of Virginia continue to navigate the ever changing COVID-19 pandemic. We are closely monitoring and following the guidance available through the Centers for Disease Control (CDC), the World Health Organization (WHO) and state and regional public health authorities. We are committed to keeping the safety of our customers, business partners, and employees.

Our Ashland warehouse location remains open and our supply chain remains intact. We are maintaining a limited staff in our Ashland Office to support critical functions including shipping/receiving, accounting, and IT.

Additionally, we have implemented the following requirements:

  • Restricting visitor access to our facility.
  • Increased frequency of sanitizing facilities and work spaces
  • Requiring regular hand washing and sanitizing.
  • Using technology where possible to replace in-person meetings.

We will update this statement as the situation changes.

We thank you for your continued business and support. Please stay safe and be well.

Cavitation in Valves

Cavitation in Valves

Cavitation can occur in valves when used in throttling or modulating service. Cavitation is the
sudden vaporization and violent condensation of a liquid downstream of the valve due to localized low pressure zones. When flow passes through a throttled valve, a localized low pressure zone forms immediately downstream of the valve. If the localized pressure falls below the vapor pressure of the fluid, the liquid vaporizes (boils) and forms a vapor pocket. As the vapor bubbles flow downstream, the pressure recovers, and the bubbles violently implode causing a popping or rumbling sound similar to tumbling rocks in a pipe. The sound of cavitation in a pipeline is unmistakable. The condensation of the bubbles not only produces a ringing sound, but also creates localized stresses in the pipe walls and valve body that can cause severe pitting.

Read this white paper, courtesy of Val-Matic, to fully understand what happens when cavitation occurs in valves.

Table of Contents
  • Introduction
  • Cavitation Analysis
  • Cavitation Data
  • Valve Coefficient Data
  • Example Application
  • Conclusion & Recommendations
  • References
For question about the proper applications of valves, contact Automatic Controls of Virginia. Call them at (804) 752-1000 or visit their web site at