Rules of Thumb
   
Utilities, Common Specifications
  1. Compressed air at 45, 150, 300 or 450 psig.
  2. Instrument air at 45 psig, 0F dewpoint.
  3. Steam: 15-30 psig, at 250-275F; 150 psig, at 366F; 400 psig, at 448F; 600 psig, at 488F, or with 100-150F of superheat.
  4. Cooling water: supply from a cooling tower is at 80-90F; return is at 115-125F; return seawater at 110F, return tempered water or steam condensate above 125F.
  5. Cooling air supply at 85-95F; temperature approach to process, 40F.

H I N T S  A N D  R U L E S
Drying and Solids Conveyors for Particular Solids Cooling Towers Compressors and Vacuum Pumps Crushing and Grinding
Extraction, Liquid-Liquid Crystallatisation from Solution Filtration Heat Exchangers Mixing and Agitation
Particle Size Enlargement Piping Pumps Reactors Refrigeration
Size Spereation of Particles Size Seperation of Particles Utilities, Common Specifications Vessels (Storage Tanks) Vessels (Storage Tanks)
C O N T A C T   G L Y D E