• Pounds-force per square inch - Pound per Square Inch (lbf / in2 or psi);
• Bar (bar);
• Inch of mercury (inHg or “Hg);
• Micron or Micron of Mercury (mHg);
• Kilogram-force per square centimeter (kgf / cm2);
• Atmosphere (atm);
• Pascal (Pa);
PRESSURE UNITS USED IN REFRIGERATION EQUIVALENCE
• 1 kgf / cm² = 14.22 PSIG
• 1 kgf / cm² = 0.98 bar
• 1 bar = 100 Kpa
• M.c.a = means meters of water column.
• kgf / cm² kilogram force per cm squared.
• PSIG pound force per inch squared.
• bar abbreviation for the word baria.
• KPa pascal kilo.