Air compressor terminology and related knowledge
(1) Pressure: The pressure referred to in the compressor industry refers to the pressure (P)
I, standard atmospheric pressure (atm)
II. Working pressure: suction and exhaust pressure refers to the pressure of air compressor suction and exhaust.
1 The pressure measured at zero atmospheric pressure is called the gauge pressure P(G).
2 The pressure at zero absolute pressure is called absolute pressure P(A).
The exhaust pressure normally given on the compressor nameplate is the gauge pressure.
III, differential pressure: the difference in pressure
IV, pressure loss: loss of pressure
V, air compressor commonly used pressure unit conversion:
1MPa (MPa) = 106Pa (Pascal)
1bar (bar) = 0.1MPa
1atm (standard atmospheric pressure) = 1.013bar = 0.1013MPa
Usually “kilo” in the air compressor industry means “bar”
