[Editor’s note: When we last visited with lead installer John and his helper Charlie (The NEWS, March 5, 2007), they had just learned the hard way that there’s a lot more to sealing ducts than just ...

Static pressure refers to the forces acting on the inner surfaces of HVAC system ductwork. It serves as an indicator of airflow and can be affected by numerous forms of resistance, including the ...

A pressure transducer is capable of accurately measuring pressure. It converts applied pressure into an electric signal and can be classified as an active or passive pressure measurement device.