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.