4901 Kesslersville Road Easton, PA 18040
A small valve that controls a limited flow control feed to a separate, primary valve.
Drawings that provide a two-dimensional (2D) “looking down” or “from above” view of a project section or element.
**A compartment or chamber to which one or more air ducts are connected and that forms part of the
Containing or operated by air or gas under pressure.
*A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or
Drawings used to provide general arrangement and system layout for information purposes only. They are not typically accurate or
The force exerted per unit area. Usually expressed in pounds per square inch (psi) or kilopascals (kPa).
*A pilot-operated pressure reducing valve, designed for the purpose of reducing the downstream water pressure to a specific value
Pressure differential, often used to indicate flow velocity across a valve or orifice.
